The JMA Tech Coyne Green Infrastructure project was completed in the 2021 construction season. The project included methods of preventing stormwater runoff that were funded by the Green Improvement Fund (GIF).
A capture and slow-release chamber system and added green space were used in this project to manage stormwater runoff. The chamber system was built underneath the parking lot, and stormwater runoff from both the parking lot and the building roof was routed into the chamber. This allows for the stormwater to be captured and slowly released, rather than directly entering the combined sewer. The total area draining to the chamber system is approximately 86,958 square feet, which will result in an annual runoff capture of 1,666,800 gallons of stormwater. Added greenspace was added along the parking lot to further reduce stormwater runoff, resulting in a total annual runoff capture of more than 1.7 million gallons for this project.
Download project details below:


Tehri Dam & Hydro Power Plant is a 1,000MW hydro power project. It is located on Bhagirathi river/basin in Uttarakhand, India. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. The project construction commenced in 1978 and subsequently entered into commercial operation in 2006. Buy the profile here.
The project was developed by THDC India and is currently owned by NTPC with a stake of 74.49%.
The hydro reservoir capacity is 3,540 million cubic meter. The gross head and net head of the project are 231.5m and 188m respectively. The total number of penstocks, pipes or long channels that carry water down from the hydroelectric reservoir to the turbines inside the actual power station, are 4 in number. The penstock length is 1,040m. The penstock diameter is 5.75m. The project generated 3,568 GWh of electricity. The project cost is $1,620m.
The project construction commenced in 1978 and subsequently entered into commercial operation in 2006.
Power purchase agreement
Dakshin Haryana Bijli Vitran Nigam and Uttar Haryana Bijli Vitran Nigam are the power offtakers from the project.
GE Power India and Hindustan Construction were selected to render engineering procurement construction services for the hydro power project.
Ukrainian Energy Machines was selected as the turbine supplier for the hydro power project. The company provided 4 units of francis turbines, each with 250MW nameplate capacity.
Bharat Heavy Electricals supplied 4 electric generators for the project. The generator capacity is 250 MVA.
For more details on Tehri Dam & Hydro Power Plant, buy the profile here.
About THDC India
THDC India Ltd (THDCIL), a subsidiary of NTPC Ltd, is a renewable energy corporation that operates, develops, and maintains hydroelectric projects. The corporation offers services such as power project development and operation, corporate and project planning, construction management, design engineering, erection and commissioning, contracts management, project management, human resource management, financial management, and commercial management. Its projects include Tehri Dam and HPP, Patan Wind Power Project and Dhukwan SHP, among others. The corporation operates in Rishikesh and Tehri, India. THDCIL is headquartered in Rishikesh, Uttarakhand, India.


中低压差系列调节阀 Low and medium differential valve
DC1624D 双层套筒调节阀 DC1624D Double cage control valve
The basic type of DC1624D double sleeve control valve is straight-through valve body, balanced spool, sleeve-oriented control valve, which is widely used in very severe working conditions. The fluid is mainly regulated by a specially drilled sleeve, which provides full-stroke continuous guidance for the spool. The unique small hole of the double sleeve is designed as a multi-stage pressure reducing channel, which effectively controls the flow velocity and pressure distribution in the fluid channel, especially for incompressible fluids, it can effectively solve the problem of cavitation and noise caused by high pressure difference.
Except for the double sleeve, all other parts can be interchanged with the DC1624 series control valve.


Bhubaneswar: The incessant rain under the influence of the deep depression over the Bay of Bengal has lead to swelling of major rivers across Odisha.
According to sources, seven rivers in the State are in spate due to the heavy incessant rains that lashed many parts of the State for over two days. While the water level of Mahanadi is increasing at Naraj, the Devi River is swelling near Alipingala. Similarly in Sundargarh the Ib River is in spate, while the water level of Brahmani River is rising at Jenapur and Panposh.
Brahmani River is flowing above the danger level at Akhuapada. Similarly, the Subarnarekha River is swelling near Rajghat and Jamsolaghat, while the Budhabalanga River is in spate near National Highway-5. Jalaka River is flowing above the danger level at Mathani, while the Bansadhara River is swelling near Gunupur.


India ranks third in the world after China and the USA in terms of the number of dams. The country has about 4710 completed large dams. With the ever-increasing population and the consequent increased demand for water for various uses, it has become necessary not only to construct new dams but also to rehabilitate and maintain existing ones. The dams provide storages to tide over the temporal and spatial variation in rainfall for meeting the year-round requirements of drinking water supply, irrigation, hydropower, and industries in the country which lead to the development of the national economy. Biggest Dams in India have helped immensely in attaining self-sufficiency in food grain production besides flood control and drought mitigation.
At a time when the hydropower sector has taken a beating in India, power major NTPC is planning to set up the country’s biggest hydel project in Arunachal Pradesh. The hydropower project at Siang will alone generate between 10,000 to 12,000 MW when completed, making it the largest hydroelectric dam in South Asia. And 27,000 MW when collaborated with other power companies.
Below are the 10 Largest Hydroelectric Dams in India in terms of Power Generation.
1.) The Tehri Dam – is the highest dam in India and the tenth tallest dam in the world. It is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River near Tehri in Uttarakhand, India. The dam is a 260.5 meters (855 ft) high rock and earth-fill embankment dam. Its length is 575 meters. Tehri Hydro Power Complex (2400 MW), comprises the following components:
- Tehri Dam & Hydro Power Plant (1000 MW)
- Koteshwar Hydro Electric Project (400 MW)
- Tehri Pumped Storage Plant (PSP) (1000 MW) (Total capacity 2400 MW)
2.) The Koyna Hydroelectric Dam – is the second largest hydroelectric power plant of India. The total Installed capacity of the project is 1,960 MW. The project consists of 4 stages of power generation. All the generators are located in the underground Powerhouses excavated deep inside the surrounding mountains of the Western Ghats. A dam foot powerhouse also contributes to the electricity generation.
1st stage 4 x 70 MW = 280 MW
2nd stage 4 x 80 MW = 320 MW
Dam foot 2 x 20 MW = 40 MW
3rd stage 4 x 80 MW = 320 MW
4th stage 4 x 250 MW = 1,000 MW
Total capacity 1,960 MW
3.) The Srisailam Dam – is a dam constructed across the Krishna River at Srisailam in the Kurnool district in the state of Andhra Pradesh in India and is the 3rd largest capacity hydroelectric project in the country with 1,670 MW generation of electricity.
Turbines left 6 × 150MW reversible Francis-type
Turbines Right 7 × 110MW Francis type
Total capacity 1,670 MW
4.) The Nathpa Jhakri Dam – is a concrete gravity dam on the Satluj River in Himachal Pradesh, India. The primary purpose of the dam is hydroelectric power production and it supplies a 1,500 MW underground power station with water.
Turbines 6 × 250 MW Francis-type
Total capacity 1,500 MW
5.) The Sardar Sarovar Dam – is a gravity dam on the Narmada River near Navagam, Gujarat in India. It is the largest dam and part of the Narmada Valley Project, a large hydraulic engineering project involving the construction of a series of large irrigation and hydroelectric multi-purpose dams on the Narmada River.
Turbines: 6 x 200 MW Francis pump-turbine
Canal: 5 x 50 MW Kaplan-type
Total capacity 1,450 MW
6.) The Bhakra-Nangal Dam – is a concrete gravity dam across the Sutlej River, and is in Bilaspur, Himachal Pradesh in India. Its reservoir, known as the “Gobind Sagar”, stores up to 9.34 billion cubic metres of water, making it the second largest reservoir in India, enough to drain the whole of Chandigarh, parts of Haryana, Punjab and Delhi.
Turbines 5 x 108 MW, 5 x 157 MW Francis-type
Total capacity 1325 MW
7.) The Karcham Wangtoo Dam – is a 1,000 megawatts power station on the Sutlej River in Himachal Pradesh at Kinnaur district of India. The dam is located between the villages of Karcham and Wangtoo and get its name from their. it was constructed by Jaypee Group who later sold it out to JSW Group. The main spillway is along the crest of the dam and is controlled by six radial gates.
Turbines 4 x 250 MW Francis-type
Total capacity 1,000 MW
8.) The Indirasagar Dam – is a multipurpose project of Madhya Pradesh on the Narmada River at Narmadanagar in the Khandwa district of Madhya Pradesh in India. The reservoir of 12,200,000,000 m3 was created. It withholds the largest reservoir in India, in terms of storage of water. Indira Sagar Project is a multipurpose Project with an installed capacity of 1,000 MW.
Turbines 8 Units of 125 MW each
Total capacity 1000 MW
9.) Nagarjuna Sagar Dam – is a masonry dam on the Krishna River at Nagarjuna Sagar in the border of Guntur and Nalgonda districts of Andhra Pradesh State, India. The construction duration of the dam was between the years of 1955 and 1967.
Turbines 1 x 110 MW Francis turbines,
Turbines 7 x 100.8 MW reversible Francis
Total capacity 816 MW
10.) The Idukki Dam – located in Kerala, India, is a 168.91 m (554 ft) tall arch dam. The dam stands with a beautiful view between the two mountains – Kuravanmala and Kurathimala. It was constructed and is owned by the Kerala State Electricity Board. It supports a 780 MW hydroelectric power station in Moolamattom.
Turbines 6 x 130 MW Pelton-type
Total capacity 780 MW


Hydraulic Characteristics Of Aquifers
The most important hydraulic properties of aquifers are their ability to store and transmit water. The aquifer’s hydraulic conductivity is a measure of its ability to transmit water. Hydraulic conductivity is dependent on the porosity and permeability of the material as well as on the dynamic characteristics of the fluid (water). Transmission of water through an aquifer requires a driving force (hydraulic gradient). Fluid flow in an aquifer is driven by pressure changes. The change in total pressure over a specific distance or length is termed the hydraulic gradient. A measure of the volume of water that can be transmitted horizontally by the full saturated thickness of an aquifer is referred to as its transmissivity. The transmissivity is the product of the hydraulic conductivity and the saturated thickness of the aquifer. The hydraulic conductivity, hydraulic gradient, and transmissivity are all characteristics of aquifers that are used to describe the flow of water.
The ability of an aquifer to store or release water is quantified by the value of its storage coefficient. The magnitude of the storage coefficient depends upon whether an aquifer is confined or unconfined. The storage coefficient in confined aquifers is small compared to that of unconfined systems. The term storage coefficient is usually associated with the storativity of a confined aquifer, where water release from storage depends upon the elasticity of the aquifer and the compressibility of the fluid. The term specific yield is normally applied to the storativity of an unconfined aquifer. Unconfined aquifers provide water by physical dewatering (via gravity drainage) of the material through which the decline in the water table occurs.


Centrifugal Pump SMH axially split single stage pump
SMH pumps are part of the broad single stage, double suction, horizontal split case family within Sulzer. Flowrates are provided to over 11,000 m3/h (50,000 GPM) and heads to over 200m (650 ft).
Main applications are Onshore cooling water, Offshore seawater, FPSO offloading, Closed cycle cooling, Tank Farm boosting, Booster pumps for all pipeline applications and FPSO seawater lift applications.
Between Bearing design for reliability at high flow rates
ISO 13709 (API 610) compliance
Broad hydraulic coverage at 50 and 60 hertz speeds
Axially split casing for ease of repair
Vertical shaft (SMHv) for limited deck space applications
SMH axially split single stage pump Specifications:
- Maximum discharge pressure (bar)26
- Max Speed (rpm)3000
- Max head (m)200
- Max. discharge size (mm)800
- Max flow (m3/h)11000
- Max. temperature (C)150


The value of hydraulics are increased by new hydraulic controls and electro-hydraulic systems. Digital design configurators make the creation of complex systems like hydraulic power units fast and easy. Whilst products such as the Sytronix variable-speed pump drive system demonstrate how intelligent electric drives and hydraulics combine to reach new levels of efficiency. Hydraulics with compact design can also be used to provide a modular solution for multiple applications.
ABPAC Power Units
Flexible, energy-efficient power unit with operating pressure up to 300 bar and maximum flow of 200 liters per minute. Supported through advanced online configuration tool, its decentralized intelligence makes it easy to integrate into vertical and horizontal networks.
Sytronix Hydraulic Drives
Intelligent, energy-efficient variable-speed pump drives for pressure/flow, force/position control applications. Support for Sercos & Multi-Ethernet protocols enables fast and easy connection to 3rd party hardware. Variable-speed control can yield up to 80% energy savings.
CytroPac - new design for power units
Ultra-compact standard power unit with up to 4kW of power, 240 bar pressure and tanks up to 20 liters. Integrated frequency converter doubles as a sensor node and transmits all measured data to machine control in real time.


Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd
Tag archives: "High Pressure Flange"
How to deal with high pressure flange seal leakage?
What is high pressure flange?
High Pressure Flange, WN RTJ Flange, 900# 1500# 2500# WN RTJ Flange


n Civil Engineering = Siviele Ingenieurswese - Rock engineering for Boschkop intake works : geotechnical engineering
|Article Title||Rock engineering for Boschkop intake works : geotechnical engineering|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Publication Date||Apr 2015|
|Pages||15 - 20|
In 2006, Schwartz Tromp (Pty) Ltd (geotechnical engineers) were engaged by the project engineer of Vaal Pipeline Consultants (VPC) to provide specialist geological and geotechnical engineering services to accompany the rock excavation for the construction of a pump chamber and intake structure sited in the Vaal Dam reservoir.
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A tributary stream entering a river with a high natural levee may often flow parallel to main trunk in the floodplain before entering. The term yazoo-type river is used to describe this situation. (After the Yazoo River along the Mississippi River).
A Yazoo River along the Mississippi River. Original from H.H. Einstein
Massachusetts Institute of Technology


Hi folks who want to make own automatic boiler water level control system with phototransistor. The control unit is registering the level of water using phototransistor + red led mounted on the water level glass tube. The servo is used to open / close the bypass valve between the boiler and waterpump operated by steam engine or open / close the steam valve to feed pump driven by steam pressure such like as Stuart feeding pump or Southworth feeding pump or as you created own feeding pump. Pump time can be adjusted as required by the phototransistor have registered lowest water level and pump on to it is higher than the phototransistor. The purpose is that it should not be often to pump water into the boiler. Light sensitivity is regulated depending on the size glass diameter and thickness as the receiving signal when the water is inside the water level glass tube. The yellow led = low water/zero water level The green led = normal water level Both yellow and green led = water is pumping into the steam boiler The yellow led is off and the green led is on = pumping time is ended when the water level is in normal position. I did no want to drill hole in the boiler for water sensor since i has water level glass tube mounted on boiler. Hence i created the automatic boiler water level control system with phototransistor on glass tube. Here is the diagram of the automatic boiler water level system with phototransistor.


Accession Number : ADA136228
Title : Lake Darling Flood Control Project, Souris River, North Dakota. General Project Design.
Descriptive Note : Design memo. no. 3, 1973-1983.
Corporate Author : CORPS OF ENGINEERS ST PAUL MN ST PAUL DISTRICT
PDF Url : ADA136228
Report Date : Jun 1983
Pagination or Media Count : 630
Abstract : The Lake Darling project is the second phase of the total flood control plan for the Souris Valley in North Dakota. The completed Minot channel project and the existing Lake Darling Dam provide a channel capacity of 5,000 cfs, or protection against a 15-year flood. Four floods in the last 15 years have exceeded the 5,000 cfs capacity. The Lake Darling Dam has been identified as a high hazard dam because of its location above Minot. Known problems of the structure include inadequate spillway capacity and embankment slopes. (Author)
Descriptors : *Flood control, North Dakota, Rivers, Earth dams, Modification, Levees, Planning, Engineering drawings
Subject Categories : Civil Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE


Guadalajara - Mexico
Coordinacion de Ingenieria de Proyectos S.C (Cipro)
Description for Arcediano (Mexico)
Pumped storage plant project (240 MW) envisaged on the shores of Arcediano lake.
- Underground power house (No. 2 Francis turbines, IP = 240 MW)
- Pumping plant (P = 296 MVA)
- Surge shaft (H = 30 m, D = 10 m)
- Penstock (L = 680 m, D = 2.8 m)
- Penstock shaft (L = 300 m, D = 2.8 m)
- Access tunnel to underground power house (L = 1'415 m)
Simbirizzi (Settimo S. Pietro) is a small hydroelectric plant to supply the...
The scope of the assignment is the rehabilitation of the existing Hermitage...
Lusaka project including domestic water supply pipeline for the city of...
Lower Diamphwe (Malawi)
This project includes the Lower Diamphwe Multipurpose Dam and associated...
Bumbuna (Sierra Leone)
This is one of our pet projects that we have...
Uribante Doradas (Venezuela)
Hydroelectric project with IP = 300 MW.
Rockfill dam with bituminous facing (BFRd) with a reservoir for irrigation,...
King Talal (Jordan)
The assignment comprises the assessment of conditions of the existing plant...
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...


Gaosha is a 50MW hydro power project. It is located on Shaxi river/basin in Fujian, China. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in 1995.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||50||50||–||Active||Fujian, China||Fujian Gaosha Hydro Power|
The project was developed by Fujian Gaosha Hydro Power.
Gaosha is a reservoir based project. The hydro reservoir capacity is 40 million cubic meter. The net head of the project is 10m. The project generated 181.724 GWh of electricity.
The project got commissioned in 1995.
Power Purchase Agreement
The power generated from the project is sold to State Grid Corporation of China under a power purchase agreement.
Chongqing Water Turbine Works was selected as the turbine supplier for the hydro power project. The company provided 4 units of tubular turbines, each with 12.5MW nameplate capacity.
Chongqing Water Turbine Works supplied 4 electric generators for the project. The generator capacity is 12.5 MVA.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


- Flood Warning issued June 10 at 9:10PM CDT until June 12 at 3:00AM CDT by NWS
- Effective: 9:10 p.m. on Saturday, June 10, 2017
- Expires: 3 a.m. on Monday, June 12, 2017
...The flood warning is cancelled for the following river in
Mississippi River at Hannibal
...The flood warning continues for the following river in
Mississippi River at Louisiana
at Clarksville LD24
at Winfield LD25
The Flood Warning continues for
the Mississippi River at Chester
* until late Sunday night.
* At 8:30 PM Saturday the stage was 27.5 feet.
* Flood stage is 27.0 feet.
* Minor flooding is forecast.
* The river is forecast to continue falling and will fall below flood
stage by early tomorrow.
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 06/11 06/12 06/13 06/14 06/15
Chester 27.0 27.50 26.8 25.8 24.7 23.7 22.7
- See more at NOAA


Pump Storage Plants
The Vianden Pumped Storage Plant is situated at Luxembourg's eastern border to Germany, on the River Our, and was commissioned in 1964. The plant is operated by the Société Electrique de l'Our (SEO).
The pumped storage project ATDORF had been planned already in the 1970ies, to become the third plant within the Hotzenwald pumped storage scheme in the Southern Black Forest, Germany. Planning activities had again resumed in 1992/93. However, the project was not realised at either time. As per today’s design, Atdorf shall be implemented as Germany’s largest pumped storage project with a total installed capacity of 1,400 MW.
The Goldisthal Pumped Storage Plant, with an installed capacity of 1,060 MW, is located on the upper reach of the Schwarza River in Southern Thuringia.
The pumped storage plant Goldisthal, with an installed capacity of 1060 MW, is located in the Thuringian Forest. The upper reservoir is formed by a circular rockfill ring dam with asphaltic concrete surface sealing. The power cavern houses 4 sets of pump-turbines and generator motors. 2 units are of conventional fixed speed hydro units, and 2 units are double fed induction machines plus cycloconverters for adjustable speed control. The lower reservoir is formed by a 67 m high asphalt core rockfill dam.
The pumped storage plant Goldisthal is located on the upper course of the river Schwarza in Southern Thuringia and has an installed capacity of 1,060 MW.


Aluminium Barrel/Drum Rotary Hand PumpKSh4,550.00 Price
Perfectly suitable for construction sites, motor boats etc.
Self priming barrel pump with crank for pumping liquids from barrels, tanks, canisters and other vessels.
This vane pump is suitable for diesel, heating oil, gear oil, motor oil, rapeseed oil
Also suitable for refilling
Electric Water Pumps 750W,220v-240v, 50hzKSh19,800.00 Price
750W, lift 13m, Flowrate 17m3/h, 220v-240v, 50hz
Solar Pump-20mKSh99,450.00 Price
Solar Pump-30mKSh113,360.00 Price


Atiaia Energia Chile SA planned to develop 90 MW Rucalhue Hydropower Station Project, in Rucalhue, Biobio, Chile. PowerChina Chengdu Engineering was the design consultant. China International Water & Electric Corp was the shareholder. Sinohydro Bureau 14 Co Ltd was the EPC contractor. The Rucalhue hydropower station had an installed capacity of 90 MW. The power station would harness the waters of the Bio Bio River. The main buildings included dam block section, spillway gate and workshop dam section, etc. The maximum dam height was 30 meters. Its output would be supplied to the Central Interconnected System (SIC) via a 220 KV, 1.5 KM power line. The plant was expected to start construction in September 2020, with a construction period of 42 months. The project responded to Belt and Road Initiative and would improve local electricity. It marked the start of China International Water & Electric Corp's market exploration in fields of clean energy investment and construction in Chile.


|Client||Barton Road Airport Boundary Fence Footing and Drainage Repairs|
|Client||Archerfield Airport Corporation|
|Project Value||< $100k|
|Project Overview||It was identified that storm water was undermining the Archerfield Airport boundary fence on Barton Road. Archerfield planned to undertake drainage works along the existing grass swale to prevent scouring of soil and protect the fence foundation.|
|JJR Involvement||The project involved designing drainage upgrades to protect both the drainage channel and the boundary fence. A detailed drainage design was developed, including coordination of survey data.
Project management services were provided including:


Home » New Miniature Pressure-Compensated Flow Control Valve from Beswick Engineering
New Miniature Pressure-Compensated Flow Control Valve from Beswick Engineering
June 7, 2007
Beswick Engineering released an ultra-miniature pressure compensated flow control valve with low friction diaphragm.
The PCFCD-1N1 is designed to maintain a constant flow rate, which the customer can adjust regardless of upstream or downstream pressure variations.
It works with both liquids (incompressible fluids) and gasses (compressible fluids) but is primarily intended for the control of liquids.
The pressure is regulated with a low friction diaphragm mechanism. According to the company's press release, this valve is undergoing the patent process.
Additional features include weight of 48 grams. The PCFCD-1N1 controls flow rates of 0 to 4.2 gallons per hour of water. It is best suited for the control of low flow rates. The maximum rated inlet supply pressure is 500 psig.
Both the inlet and outlet ports are tapped 10-32. The valve body is both small and lightweight allowing for convenient in-line mounting without the need for a panel mount thread. The PCFCD-1N1 is currently available in brass. Buna-N is the standard seal material. Fluorocarbon (Vitonâ) is optional.


ICVP-1/2X1/2 Inline Check Valve 1/2 x 1/2 NPT with 1/8 NPT Unloader Port
The ICVP-1/2X1/2 Inline Brass Check Valve with 1/2 x 1/2 NPT inlet and outlet port and also has a 1/8 NPT Unloader Port that can be used if needed to relieve line and head pressure.
This Inline Check Valve Brass construction is a 2 piece design with glass filled Teflon disc and a stainless steel spring.
This style check valves has a triple balanced flow design for minimum restrictions and is a Female 1/2 NPT Inlet and Female 1/2 NPT Outlet.
The ICVP series brass check valves also adds a 1/8” NPT port to be used for unit that require head and line pressure to be released after pump up operation.
Maximum working pressure 500 PSIG, maximum operating temperature 450ºF.


Acerenza - Italy
Salini Costruttori S.p.A. on behalf of Apulia and Lucania Land Reclamation and Irrigation Authority - Bari
1976 - 1988
Description for Acerenza (Italy)
Water storage plant for irrigation purposes with a reservoir capacity of 42 Mm³.
- Reservoir (V = 42 Mm³)
- Earthfill dam with impervious core (H = 60.5 m, L_crest = 744 m, V = 3.3 Mm³)
- Spillway (Q = 548 m³/s)
- Auxiliary spillway (Q = 252 m³/s)
- Ancillary works
Lusaka project including domestic water supply pipeline for the city of...
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Gilgel Gibe (Ethiopia)
Hydroelectric power plant (IP = 200 MW) including rockfill dam, underground...
Alto Temo (Italy)
Water storage plant for irrigation purposes with a capacity of 90 Mm³
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Impianto Idroelettrico (PI = 255 MW) sul fiume Lunsemfwa a valle della diga...
King Talal (Jordan)
The assignment comprises the assessment of conditions of the existing plant...
Tana Beles (Ethiopia)
The ambitious Tana Beles project was located in the Metekel district of...
Maswa project including domestic water supply pipeline for the district...


ECO-JET® MOBILE CONE VALVE
Flat slide gate for large flows in intakes for hydroelectric power plants
The ECO-JET® Mobile Cone Valve is a solution for installing regulating valves in small and medium flows (e.g. ecological intakes), providing an economic alternative to the installation of fixed cone valves for small diameters and heads. The cross-sectional area in this new type of valve is circular (similar to Howell-Bunger valves) and with a similarly balanced operation. They are designed to be operated (opened and closed) under the anticipated maximum water head conditions, achieving water sealing with a rubber-metal seal.
ECO-JET® valves are made up of the following elements:
- Valve body
- Sealing cone
- Hydraulic power unit
- Control desk, electrical command, control and signalling panel


Status: In Progress
The purpose of this project is to provide landscaping, shoreline beautification and riparian habitat improvement along both the east and west banks of the Arkansas River within the Zink Lake area. The evaluation and engineering design of these project elements will be included in the design of the Zink Dam improvements. Landscaping and bank stabilization and re-vegetation will be part of the project design. No construction activities have occurred at this time. Vision 2025 allocated $1.8 million for this project, and matching funds from various potential sources are being pursued. Local funding will be used to match anticipated state and federal funds to help with this effort.
This project will add to the scenic beauty and environmental functionality of one of Tulsa’s most noted physical assets. This beautification project is intended to improve the shoreline and attract private investment along the river.


Maryborough Water Main Replacement
Project Name: Albert Street Water Main Project – Maryborough (QLD)
Client: Fraser Coast Regional Council
Commencement: June 2016
Offaly Civil Engineering was engaged by Wide Bay Water to replace 1,820m of 300mm diameter, 81-year-old, cast-iron water main in Albert Street, Maryborough. The main was constructed as part of the original Maryborough drinking water system in the 1930s. “The replacement of the main will improve the performance of the system as well as reduce water lost through leakage and bursts,” Wide Bay Water CEO said.
- Installation of 1.8km of DN300 PVC Water Main.
- Installation of 500m of DN300 DICL Water Main.
- Trenchless installation of DN450 HDPE water main under Ferry Street.
- Live Connections to Existing Water Main.
- Road Rehabilitation
- Installation of Water Main under live traffic Conditions.
- Hydrostatic Testing & Commissioning.
- Re-habilitation of project site.


Terex Pegson 1165 HR Premiertrak
- The 1165 HR "M" single-toggle jaw crusher features hydraulic overload protection and hydraulic setting adjustment.
- Hydraulic release opens automatically on overload
- High-swing jaw reduces risk of blockage
- Heavy-duty, I-beam chassis and track frame
- Hydraulic folding Hardox feed hopper
- Caterpillar C-9 power source
- Suitable for recycling applications and medium-hard stone


Yutan (Lishui) is a 70MW hydro power project. It is located on Lishui river/basin in Hunan, China. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. The project construction commenced in 1991 and subsequently entered into commercial operation in 1999. Buy the profile here.
The project was developed by Datang Huayin Zhangjiajie Hydropower Development. KD Chem, Hunan Xiangtou Holding Group and Zhangjiajie Economic Development Investment Group are currently owning the project having ownership stake of 51%, 35% and 14% respectively.
Yutan (Lishui) is a reservoir based project. The hydro reservoir capacity is 121.5 million cubic meter. The project generated 271 GWh of electricity. The project cost is $58m.
The project construction commenced in 1991 and subsequently entered into commercial operation in 1999.
Power purchase agreement
The power generated from the project is sold to State Grid Corporation of China under a power purchase agreement.
The turbines for the hydro power project have been supplied by Addnew Hydropower Limited & Addnew Technologies and Guangdong Shaoguan Zhongli Power Generation Equipment.
Guangdong Shaoguan Zhongli Power Generation Equipment supplied 1 electric generator for the project.
For more details on Yutan (Lishui), buy the profile here.


Placer County has constructed a new well, storage tank, pump station, and distribution piping to improve the water supply and storage capacity of Sheridan's existing water supply system, to ensure the community has sufficient water supply and storage capacity to meet current California Waterworks Standards and State fire flow requirements for the school. The project was completed in March 2014.
The new well, storage tank, and pump station have been installed on the 0.45 acre County-owned parcel located west of Stewart Hall and the Sheridan Community Park. Pipeline has been installed from the new well, through easements on private property to 10th Street, and continues south on 10th Street to H Street, per the project map.
The Project cost was $2,536,400. The project was funded in part through grants from the California Department of Housing and Community Development-Community Development Block Grant Program and U.S. Department of Agriculture Rural Utilities Services.


A flood risk management existing conditions hydraulic model is a tool which can be used to more accurately evaluate and communicate flood risks, as well as explore mitigation strategies to reduce future risk. It can also help provide better predictability and more consistent flood risk management.
Development of a standardized and seamless flood risk management hydraulic model for the Upper Mississippi River System (UMRS) is an essential part of understanding the risks that currently exist to the river communities. It is a critical first step to support development of a systemic flood risk management strategy.
As part of this effort, the Corps of Engineers developed a new, updated hydraulic model for the Upper Mississippi River System, including the Illinois Waterway. This collaborative effort involved a variety of state and federal agencies, is facilitated by the Corps of Engineers Rock Island, St. Louis and St. Paul districts and uses the Hydrologic Engineering Center's River Analysis System (HEC-RAS).
Click on the map to the right to see a larger view of the project phases.


Boskalis to build new port in St. Petersburg
Dutch maritime engineering firm Boskalis has been awarded the contract to construct the new Bronka Port in St. Petersburg.
new port facility 'Bronka'
The project involves the reclamation of land for the construction of the new port facility 'Bronka' in St Petersburg. A total volume of up to 3 million cubic meters sand will be dredged and reclaimed using trailer suction hopper dredgers to create approximately 85 hectares of new terminal area. The project is expected to be completed in 2013. The contract for the project was was signed at the St Petersburg International Economic Forum on 20 June in attendance of the Russian Deputy Prime Minister Mr. Arkady Dvorkovich and the Prime Minister of the Netherlands Mr. Mark Rutte.


The U.S. Army Corps of Engineers awarded a $3.29 million contract for control cable replacement at the 135-MW Center Hill Dam hydro project on the Caney Fork River near Lancaster, Tenn.
The contract was awarded to Kentucky-based T.E.M. Group Inc.
The agency seeks installation of temporary control cables for one generator; replacement of control and low-voltage power cables, switchyard portion of control cable conduits, and cable trays; and sealing of seepage cracks that run through the spread room, control cable tunnel, and power cable tunnel.
In other news, the Corps of Engineers awarded Voith Hydro Inc. a $30.8 million contract to replace turbine equipment at its 45.2-MW Stockton hydroelectric project in Missouri’s Sac River system.
For more hydropower news and information, click here


|• location||Niikappu, Hokkaidō, Japan|
|• elevation||2,052.4 m (6,734 ft)|
|Niikappu, Hokkaidō, Japan|
|0 m (0 ft)|
|Length||80 km (50 mi)|
Niikappu River (新冠川, Niikappu-gawa) is a river in Hokkaidō, Japan.
The Niikappu River flows south to southwest from Mount Poroshiri in the Hidaka Mountains. The river flows through four dams, including Niikappu Dam and Okuniikappu Dam. Both dams are owned by the Hokkaido Electric Power Company, Inc. The dams form Lake Niikappu and Lake Poroshiri, respectively. After 80 kilometres (50 mi), the river empties into the Pacific Ocean.


A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is
Problem of Non Proportional Flow of Hydraulic Pumps Working with Constant Pressure Regulators in Big Power Multipump Power Pack Unit in Open System
The non-proportional flow problem of hydraulic pumps with constant pressure regulator in case of simultaneous work in Power Pack Unit with advanced multipump structure in open supply system is presented in the paper. Main parts of hydraulic power pack unit with multipump structure, mounted on board of modern product and chemical tankers and pump constant pressure regulator DP type, are described. Coefficients of non-proportional pump flow phenomena are defined. Analysis of nonproportional flowdoi:10.17559/tv-20161119215558 fatcat:v2sumrqfbnhn7o2y2fkyiocbea


CCCC Shanghai Dredging Nabs Zhaojiagou Channel Regulation Contract
On July 7, CCCC Shanghai Dredging Co., Ltd. won the bid for the general contracted project of survey, design and construction of east channel regulation in Zhaojiagou, with a construction period of 525 days.
Located in the northeast of Pudong New Area, with a channel length of 3.08 kilometers, the project involves channel excavation, cofferdam construction, flood prevention road construction and reconstruction, setting up navigational aids such as traffic signs, etc.
The project is of great significance to perfecting the grain collection and transportation system of Shanghai Port, protecting the local environment and improving the capacity for flood prevention.
Press Release, July 22, 2014


• Panel design, which is easy for installation and also reliable.
• Simple maintenance,even if the panel failure indicator lights up, it doesn't affect the continued cultivation.
• Modular design, easy for maintenance.
• The system is suitable for 80~180 horsepower tractors.
• Tractor power supply includes: 12V, 24V, wide voltage design 9~ 36V.
• Tractor pump quantitative pump configuration, displacement: 20ml/r~35ml/r.
• Lifting cylinder: single acting oil cylinder, double acting oil cylinder.


What are the characteristics of Grooved check valve
The Grooved check valve adopts a top-mounted structure, which reduces the connecting bolts of the valve body under the conditions of high pressure and large diameter.
The Grooved check valve adopts a top-mounted structure, which reduces the connecting bolts of the valve body under the conditions of high pressure and large diameter, enhances the reliability of the valve and can overcome the influence of the weight of the system on the normal operation of the valve.
Grooved check valve has the advantages of fast, easy, safe, and reliable installation, and is not restricted by the installation site. It is convenient for the maintenance of pipelines and valves. Difference, to solve the advantages of thermal expansion and contraction caused by temperature difference.
Grooved check valve is widely used in coal chemical, petrochemical, rubber, paper, pharmaceutical and other pipelines as media splitting, confluence or flow switching devices. Grooved check valve is also widely used in the water supply and drainage of fluid pipelines, as the control fluid for fire control, air conditioning, gas, petroleum, chemical, water treatment, municipal, shipbuilding and other pipeline projects.
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LOAD-SHEDDING is expected to increase after ZESA announced Tuesday, some units at the Kariba South power stations would be taken out of service to allow for the completion of critical works on the dam wall.
In a statement, ZESA’s stakeholder relations department said: “ZESA Holdings would like to advise its valued stakeholders countrywide on the resumption of rehabilitation works for the Kariba Dam rehabilitation project.”
According to ZESA, rehabilitation had been temporarily shelved last December resulting in minimal load shedding during the festive season.
“Following the Zambezi River Authority’s request to reduce generation levels at the Kariba North and Kariba South power stations, some units at the Kariba South power station will be taken out of service daily to allow for completion of critical works on the dam wall, resulting in the reduced generation levels and load curtailment.”
The rehabilitation is expected to be completed on 25 January.


China Three Gorges has achieved financial close on its Karot hydropower project in Pakistan.
China Three Gorges has successfully achieved financial close on its Karot hydropower project in Pakistan.
The 720 MW scheme is located on the Jhelum River in both the Punjab region of Pakistan and the country's self-governing Azad Kashmir division and is part of the China-Pakistan Economic Corridor initiative.
It is the first project to be developed in Pakistan by China Three Gorges, according to Mott MacDonald, which acted as lenders’ technical, environmental and social advisor for the scheme.
Karot will form part of a five-project cascade that will help manage the water resources of the Jhelum River and provide much needed generation capacity to the country. The project includes the construction of a 95 m high dam, four headrace tunnels and a new public bridge across the river, as well as a substantial spillway structure to manage flood flows.
Construction of the Karot scheme is due to be completed in 2021.
“Once complete, Karot will play a key role in helping address the shortfall in generation capacity by creating a long-term, sustainable power supply,” said Brian Minhinick, Mott MacDonald's project director.


Saint Pierre Cognet is a 101MW hydro power project. It is located on Drac river/basin in Auvergne-Rhone-Alpes, France. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. The project construction commenced in 1954 and subsequently entered into commercial operation in 1957. Buy the profile here.
The project was developed by Societe de construction des Batignolles and is currently owned by Electricite de France with a stake of 100%.
The hydro reservoir capacity is 28 million cubic meter.
The hydro power project consists of 2 turbines, each with 46.5MW nameplate capacity.
The project construction commenced in 1954 and subsequently entered into commercial operation in 1957.
GE Renewable Energy supplied 2 electric generators for the project. The generator capacity is 55 MVA.
For more details on Saint Pierre Cognet, buy the profile here.


A power purchase agreement (PPA) has been signed between power developer of Blue Energy (P.) Ltd. and Nepal Electricity Authority (NEA).
The Super Trishuli Project (100MW) is run-off river type hydro project. Main project components are 97m long, 24.5m high barrage with surface powerhouse at the toe of the barrage with short tailrace channel, switch yard with GIS and about 18km long 220kV double circuit transmission line to New Markichauk substation of Nepal Electricity Authority. The gross head is 21m and design discharge to be used is 665.76m3/sec. The energy to be produced is 498.432 million units per year. Three horizontal bulb type turbines are proposed to produce 100.00MW.


Texas Water Development Board approves $700,000 to the Holiday Beach Water Supply Corporation (Aransas County) for a Hurricane Harvey disaster recovery project
For immediate release. Contact: Kimberly Leggett at 512-463-5129
AUSTIN – (January 22, 2018) – The Texas Water Development Board (TWDB) today approved by resolution financial assistance in the amount of $700,000 in loan forgiveness from the Drinking Water State Revolving Fund to the Holiday Beach Water Supply Corporation (Aransas County). The Corporation will use the assistance to finance the planning, design, and construction of a Hurricane Harvey disaster recovery project.
The Corporation suffered considerable damage during Hurricane Harvey from flooding, high winds, and power outages. The project will allow the Corporation to replace the reverse osmosis membranes at the water treatment plant and two high-service pumps. The Corporation will also be able to replace sections of pipeline damaged during recovery and clean-up efforts, the water system storage building, and security fences.
The TWDB is the state agency charged with collecting and disseminating water-related data, assisting with regional planning, and preparing the state water plan for the development of the state’s water resources. The TWDB administers cost-effective financial assistance programs for the construction of water supply, wastewater treatment, flood control, and agricultural water conservation projects.


Mitchell Power Station
Location: Moundsville, WV
Owner: American Electric Power (AEP)
General Contractor: Brayman Construction Corp.
Value: $5.85 Million
Date Complete: April 2006
Brayman was contracted by American Electric Power to construct a new barge unloading facility as part of necessary flue-gas desulfurization (FGD) upgrades at the existing Mitchell Power Station located on the Ohio River, south of Wheeling, West Virginia.
The scope of work for this project required 50,000cy of dredging and the design and construction of 7, 20' diameter and 2, 40' diameter sheet pile cells to be used for a new barge unloading facility at the site of the existing power station environmental compliance (FGD) project on the Ohio River. In addition, Brayman completed 50,000cy of dredging, and installed reinforced concrete cell caps, E-crane platforms and foundations.


PWP No. 4173CD
Drainage Improvement Works in Ta Kwu Ling
The scope of project comprises (a) Improvement works to tributary sections namely TKL04 and TKL05 of Ping Yuen River; (b)Drainage improvement works at Ping Yeung Village; and (c) Construction of road drainage system at Ping Che Road.
The implementation of the project would alleviate flooding hazards in Ta Kwu Ling and bring the drainage system up to the current flood protection standard.
Black & Veatch Hong Kong Ltd
Drainage Projects Division
Under planning & design


Maldives Transport and Contracting Company (MTCC), has given updates on the development of projects in the islands, Lh. Hinnavaru, HDh. Kulhudhuffushi and N. Velidhoo.
At Lh. Hinnavaru, the first shipment of rock boulders for the construction for their Harbor Extension Project were delivered to the project site on 24 April 2022. Concrete works of the wall are ongoing, with 66% completion.
Upon completion of the project, MTCC shall be expected to be finished with reclamation operations of 3.2 hectare; dredging operations of 65,170.76cbm; construction of a 421m quay wall; a 123.9m breakwater; a 170.55m revetment . The value of the project is MVR 99.52 million.
Secondly, the construction of the OPD Building of Kulhudhuffushi Regional Hospital is ongoing, with 53% completion. MTCC has completed concrete, structural and roofing works of the OPD Building.
The scope of the project includes, design and construction of OPD Area, Ward Area, ICU Unit and Laboratory Building. The value of the project is MVR 30.3 million.
Furthermore, MTCC has commenced the construction of revetment for N. Velidhoo Boat Beaching Area Project.
Scope of works include, reclamation operations of 3.48 hectares and construction of a 255m revetment. The value of the project is MVR 18.25 million.


The Pawtucket Dam Crest Gate project consists of the replacement of a wooden flashboard system at the crest of an existing historic dam in Lowell, Massachusetts. Chant Power Inc. is acting as the Construction Manager, Enel Green Power North America are the owners and Obermeyer Hydro is the crest gate design and supply vendor.
The wooden flashboards are being replaced by an Obermeyer mechanical crest gate system with pneumatic air bladders to variably control the water level upstream of the dam as well as the demolition of an existing fish count building and construction of a new compressor building and concrete walkway above the spillway gates.
Scope of Work:
Comprehensive Construction Management Services for Enel Green Power North America.
Safety and environmental compliance management
Monthly construction review reporting to FERC
LOCATION / MA, USA CLIENT / Enel Green Power North AmericaSTATUS / In ProgressYEAR / 2016 PROJECT VALUE / $10 Million


Armenia And Iran To Build Meghri Hydroelectric PlantJun 5th, 2012 | Category: Economy
By Sona Gevorgian
YEREVAN, June 5 – Iran and Armenia agreed to build a hydroelectric power plant on the Arax river, which is on the border of two countries, Press TV reports.
The agreement was reached during the visit of Iranian Energy Minister Majid Namjou’s to Republic of Armenia on Saturday. The construction of the joint power plant will commence on August 22, 2012. The capacity of the hydroelectric power plant bestriding the border river will be 130 megawatts of electricity.
Construction works will start simultaneously in Meghri region of Armenia and Qarachilar region of Iran.


March 22, 2021
Dublin City Council are progressing with plans to complete a storm water outfall extension at Grand Canal Dock, to improve water quality in the area.
The proposed project will install a new pipeline within the Grand Canal Dock to the River Liffey via Asgard Road together with the construction of an outfall structure to the River Liffey at Sir John Rogerson’s Quay. 450m of pipeline will be installed within the Grand Canal Basin and 100m of pipeline will be installed along the existing road and pedestrian infrastructure on Hanover Quay.
This project is currently at planning stage and a planning application is due to be submitted to An Bord Pleanála in late 2021.
Image & Information Credit: Dublin City Council, read more HERE.


Posted on February 5, 2024
SACRAMENTO, Calif. — Demolition of the former Bank of America building, located at 6212 Lake Isabella Boulevard in Lake Isabella, is now underway.
The building must be removed so the U.S. Army Corps of Engineers can begin construction on the new U.S. Forest Service visitor center later this year.
Demolition is expected to be complete in mid-March, and the new USFS facility is scheduled to be complete in 2025.
The former USFS visitor center was displaced by construction of the new emergency spillway as part of the Isabella Dam Safety Modification Project and a temporary visitor center has been co-located with the USFS Lake Isabella fire station in the interim.
The Isabella Dam Safety Modification Project addressed overtopping, seismic and seepage issues identified with Isabella Lake’s main and auxiliary dams and spillways to reduce the likelihood of dam failure. Construction of the dam modifications began in 2017 with the relocation of facilities within the project footprint, and the project achieved substantial completion in 2022.
Completed in 1953, Isabella Dam is located approximately 40 miles northeast of Bakersfield. The reservoir is impounded by two earthen dams on the Kern River and Hot Springs Valley. Today, Isabella Lake and its dams reduce flood risk for Bakersfield and the surrounding region and is a primary water source for water users throughout Kern County.


The Miller Dam within Beale Air Force Base is a 26-foot-high earth dam constructed of rock fill in 1962 with a capacity of 814 acre-feet. Due to several overtopping events, additional spillway capacity and outlet works were constructed. Upper Blackwelder Dam is 19 feet high and stores about 330 Acre-feet of water. Similar overtopping events requires improvements to the dam consisting of outlet works replacement and construction of spillways.
Geocon joined the Wreco/Dokken design build team for the improvements to Miller Dam and contracted directly with the Air Combat Command for the Upper Blackwelder Dam. Services included preparation of Seepage and Slope Stability Reports, Geotechnical Investigation, Site Characterization Reports followed by construction observation at both dams.
APWA 2018 Project of the Year


Aecom has won a $10M (£6.2M) design and construction management contract for the £40.9M Dugway West Interceptor Relief Sewer in the Cleveland area, Ohio.
The Dugway West Interceptor Relief Sewer is a major connecting facility for almost all of the combined sewer overflow control projects in the area. It will reduce the frequency and volume of overflows in the Dugway area.
Aecom will provide preliminary and detailed design and construction management services.
The project includes construction of approximately 3.2km of main line relief sewer, 1.2km of connecting sewers and modification of more than 40 existing system regulators. It requires large diameter shallow rock tunneling, microtunneling and open-cut construction in a tight, congested urban area.


Jordan Valley Authority
2016 - in progress
Description for King Talal Hydropower (Jordan)
The assignment comprises the assessment of conditions of the existing plant (including a dam for multi-purposes uses, waterway, a powerhouse at dam toe) and the feasibility study of refurbishment and upgrading of the existing hpp (up to 12 MW) together with a new plant (18.4 MW) located 12 km downstream of the existing one.
The assignment also foresees a Reconnaissance Study for hpps on 3 existing dams Mujib, Tannur and Wadi Arab.
Existing scheme (to be refurbished and upgraded):
- King Talal Earthfill Dam (H = 108 m, L_crest = 350 m)
- Reservoir for irrigation and hydropower: (V = 85 Mm3)
- Existing power house at dam toe (Outdoor, IP = 4 MW, H = 107 m, N° 2 Francis Turbines)
New hydropower plant:
- Additional powerhouse at dam toe (Outdoor, IP = 8 MW, H = 107 m, N° 2 Francis Turbines)
- Waterway : tunnel (L = 3 km, D = 2.5 m), Pipeline (L = 8 km, D = 2.4 m), Penstock (L = 1 km, D = 1.8 m)
- Downstream powerhouse (Outdoor, IP = 18.4 MW, H = 290 m, N° 2 Francis Turbines)
- Assessment of the conditions of the existing King Talal dam and Hpp
- Pre-feasibility study of refurbishment/upgrading of the existing and a new powerhouse at King Talal
- Feasibility study of refurbishment/upgrading of the existing and a new powerhouse at King Talal
- Environmental & Social Impact Assessment
- Bathymetrical survey, Investigations
- Reconnaissance study for the implementation of hydropower in 3 existing dams
Rumakali Hydropower (Tanzania)
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Gibe V Multi-purpose Project (Ethiopia)
Gibe V is the fifth stage of the Gibe-Omo hydroelectric cascade which...
Mini Hydroelectric Power Plants (Jamaica)
Jamaica 6 project includes the feasibility for six small hpps in Jamaica and...
La Gogue Dam (Seychelles)
The aims of the assignment are the Design Review...
Kabuyanda Multi-Purpose Project (Uganda)
Kabuyanda is a multipurpose dam envisaged for agriculture (paddy rice and...
Montedoglio Dam (Italy)
Montedoglio dam has suffered some damages at the...
Bujagali Hydropower (Uganda)
Hydroelectric project on the Victoria Nile River within an installed power of...
Plaine Hollandaise Dam ( Seychelles )
The project is aimed at increasing the drinking...
Santu Miali Hydropower (Italy)
Refurbishment of the Santu Miali hydropower plant


STODDEN PARK CENTRAL IMPROVEMENTS PROJECT
WET was hired to complete a stormwater plan design for the Stodden Park Central Improvements Project which included parking areas, access roads, a roundabout, and general park amenity upgrades (playground and skating ribbon) at Stodden Park in Butte, Montana. The project design included a complex hydrologic model, grading, valley gutters, stormwater mains, inlets, and retention and detention ponds to meet the requirements of the Butte-Silver Bow Municipal Engineering Standards (BSB-MSWES). WET also provided construction oversight and prepared record drawings of the constructed stormwater system at the park.
- 1,820’ of 8” storm main piping
- 260’ of 10” storm main piping
- 1,700’ of 12” storm main piping
- 32 stormwater inlet structures
- 4 stormwater retention and detention ponds
- 3 large stormwater retention ponds


Sameer I-Flo Borewell Submersible Pump with Control Panel
1 HP (0.75 kW) Single Phase Motor
4000 to 5000 LPH Discharge Range
180 to 240 V AC Power Supply
Sameer I-Flo 1HP Single Phase Borewell Submersible Pump with Control Panel, 8 Stages(1 Year warranty)
The pump is loaded with varied features and sturdy design adds on to the life of the pump. The pump has a thermal overload protector (TOP) for the safety of the motor. The motor is capable of withstanding wide voltage fluctuations from 180-240 volts.


Problem: The original hydraulic turbine model was HLA551-LJ-315. Since the power plant started operations, it has been affected by the impoundment of the Lubuge hydropower station, The power station tail water changed by more than 15m (rated head 58.5m), resulting in the presence of cracks with varying degrees and cavitation on the outlet edge of the runner blades after each flood season. The power station needs to perform cracks and cavitation repairs on the runner each year, which substantially increases the operating costs of the power station.
New Runner Model: HLGT155-LJ-315
Solution: The full-flow passage CFD simulation was used to optimize the blades shape according to the operating range; the new runner is more suitable for a wide range of head changes, optimizing the water outlet edge of the blade, solving the problem of stress concentration on the blade outlet side, and optimizing the overal blade profile. Using X-shaped blades,a higher weighted average efficiency is achieved over full operation range, while also reached a more uniform pressure gradient of the blade and significantly reducing its cavitation. The new runner has experienced a flood season without any cracks or cavitations. At the same time, the maximum output was increased from the original 52 MW to 56 MW, bringing significant economic benefits to the power station.
CFD flow chart Pressure distribution chart
Cavitation Performance Comparation Efficiency Curve
Power station Installation
Friction transfer torque


Lower American River Project moves forward
The U.S. Army Corps of Engineers, Sacramento District, has just released the latest photos from the Lower American River Project.
“We got these shots yesterday of the erosion protection work being completed on both sides of the American River near the H Street Bridge,” said USACE.
Construction crews are armoring more than 2.5 miles of levee with erosion protection measures like large rocks called rip rap, woody fish habitat, and native plantings.
Work on the west side of the river between Sac State and Glenn Hall Park is scheduled to be complete this year, while work on the east side of the river near Campus Commons Golf Course is expected to be complete next year.


Construction of the Tugwi Mukosi access road is almost complete with overall progress at 98%.
The $6, 9 million road project will connect the vast Tugwi Mukosi Dam to the main Ngundu Chiredzi Highway.
The road is expected to bring significant convenience to people visiting the dam and consequently give a boost to tourism and recreational activities at the dam.
Commissioned in 2017, Tugwi Mukosi is Zimbabwe’s largest inland water body, with a capacity of 1, 8 billion cubic metres of water. The dam supplies irrigation water to the Lowveld, is expected to generate electricity and will also become a tourism hub.
According to the Designs and Construction Section’s weekly report for the week ending September 6, 2018, what is outstanding includes the cutting of the road side drains and masonry works for the protection of bridge embankments on the road.
The report also revealed that quite significant progress has been recorded at the various major dam construction projects with Marowanyati Dam in Buhera now 77% complete, Gwayi-Tshangani, 33% and Semwa Dam 30, 5% complete.


Subcontracted by Enisca Browne, PDE have been commissioned to undertake the Civil Engineering design for MCERTS compliant flow monitoring systems at two of South East Water’s plants in the UK.
Project deliverables include:
- Civil Engineering Design for the compound weir structure, including load calculations and rebar specifications
- Sub base design
- Detail design engineering of the compound weir structure
- Mechanical detail design of internal weir plates
- Pipework interface design
- Handrail design and mounting details


Bhubaneswar: With the opening of more gates of Hirakud dam to release excess water, Mahanadi river is likely to swell while a low to medium flood is expected, said Odisha Special Relief Commissioner Pradeep Kumar Jena today.
As per latest information, water was being released from the reservoir through 18 sluice gates as 12 more gates were opened today.
The SRC said around 7 lakh cusec water is likely to pass at Mundali barrage. However, the situation won’t be critical in low-lying areas, he said.
At 12 noon, the reservoir level in Hirakud dam was 628.23 ft against full reservoir level of 630 ft. It has been decided to keep water level at 628 ft, the official said.
The inflow and outflow were 2,58,590 cusec and 2,25,557 cusec, respectively at noon.
On the other hand, Mahanadi was flowing at 25.75 mark at Naraj against danger level of 26.41. Similarly, Baitarani river was flowing at 18.32 mark at Akhuapada against danger level of 17.83.
Water level in Jalaka river was recorded at 6.56 at Mathani against danger level of 5.50.


Alert for Lexington; Richland (South Carolina) Issued by the National Weather Service
- Flood Advisory
- Lexington; Richland
...The Flood Advisory continues for the Congaree River...
Congaree River At Columbia affecting Lexington and Richland Counties
.after the dot...explain the reasons for the Flood Advisory here.Do
not remove the dot.
The Flood Advisory is extended for
The Congaree River At Columbia.
* until Sunday afternoon.
* At 9 PM Saturday the stage was 9.7 feet.
* Flood stage is 19.0 feet.
* Forecast...Due to upstream dam releases, the river is expected to
fluctuate around 10 feet overnight. The river will then fall below
advisory stage Sunday afternoon.
* Advisory stage is 10.0 feet.
Instruction: A Flood Advisory means that nuisance flooding may occur nearest the
river when the level is below the official flood stage.


Lake Tana - Ethiopia
Salini Costruttori S.p.A.
2005 – 2011
Description for Beles (Ethiopia)
Multi-purpose project on Lake Tana, including hydropower plant and irrigation works.
- Lake Tana as a reservoir (V = 32'270 Mm³)
- Headrace tunnel (L = 11 km, D = 8 m)
- Surge shaft (H = 91 m, D = 18 m)
- Penstock (L = 286 m, D = 6.5 m)
- Underground power house (No. 4 Francis turbines, IP = 460 MW, E = 1'720 GWh/y)
- No. 3 weirs for irrigation purposes
Rio Grande (Argentina)
Hydroelectric Plant with Pumped Station.
Namakhvani Cascade (Georgia)
Namakhvani HPP Cascade, includes the construction of three hydropower schemes...
Bituminous face rockfill dam for irrigation, water supply and hydropower...
Uribante Doradas (Venezuela)
Hydroelectric project with IP = 300 MW.
Gibe V (Ethiopia)
Gibe V is the fifth stage of the Gibe-Omo hydroelectric cascade which...
Batoka Gorge (Zambia)
Trans-boundary hydropower plant of 1'600 MW, equally shared among Zambia...
Kabuyanda is a multipurpose dam envisaged for agriculture (paddy rice and...
Djouè river hydroelettric plant (tributary of Congo).
Maswa project including domestic water supply pipeline for the district...


Fluid Structure Interaction Simulations for Low Pressure Fuel Pump 2013-26-0135
This paper discusses about the effective utilization of fluid structure interactions simulation for the pump stage development of Impeller type fuel pumps. Axial clearance between the rotating impeller and stationary components is crucial for the effective performance of the pump stage. Because of designed interference fit and operating conditions the stationary pump stage components tend to deform towards rotating impeller. Computational simulations are extensively used in the design stage to predict this deformation behaviour. As these components bear wide variety of loads like structural, thermal & hydraulic loads, it demands coupled simulation to be performed. Computational fluid dynamics simulation was performed initially to get the pressure load distribution and solved in a structural solver along with other structural and thermal loads to calculate deformation. With the Multi-physics simulation results, pump stage design was optimized for minimum deformation.


Test rigs for model hydraulic turbines are used to perform various standardized tests on model turbines by simulating characteristics of the running water, at which the actual turbine will work. Test cell is a frame structure that is placed between the high head and the low head reservoirs of a test rig. It accommodates a generator-bearing assembly and the model turbines to be tested. Since model turbines are custom made systems, the frame structure is required to be designed according to the highest possible loading condition, within the capacity of the test rig, to ensure structural integrity while also considering the ease of assembly. A custom hydrostatic bearing for generator is required to support the potentially harmful axial and radial forces, and bending moments produced by the turbine. In this study, design of a test cell for a hydraulic model turbine test rig is presented.


National Program for Inspection of Non-Federal Dams. Grand Lake Dam (ME 00180), Penobscot River Basin, Grand Lake Matagamon. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
Pagination or Media Count:
This dam is a straight-axis, concrete gravity structure 218.5 ft. long and 35 ft. high. It serves as a water storage structure for the Bangor Hydroelectric Co. The spillway is 78 ft. long and contains 9 vertical lift gates 5 high x 7 wide. The dam has 4 10x10 sluice gates plus a 10 wide by 7 high log sluice gate. An unused boiler house in the center of the structure separates the sluice area from the spillway. The watershed classification is flat and coastal. In event of failure of the dam no homes will be damaged. Author.
- Hydrology, Limnology and Potamology
- Civil Engineering


Study and Design for Drainage Improvements for Cunningham and Furnace Brooks
The Massachusetts Highway Department (MassHighway) selected Weston & Sampson to provide drainage improvements to Cunningham and Furnace Brooks in Milton and Quincy, Massachusetts. The project involves a comprehensive study of the entire area and the design of new drainage culverts/pipes, which will provide additional capacity to the existing culvert/pipe system in the Cunningham and Furnace brooks.
We prepared a computer model using SWMM-EXTRAN. The input of terrain features, such as slope, soils, land use, drainage area, and stream length, were used to run the model. The model simulated stormwater runoff quantities that were used for design purposes. The simulated flows determined the capacity and size of the required improvements.
Weston & Sampson conducted the preliminary and final design of culverts/pipes, diversion structures, channel dredging, and relocation of the utilities impacted by the installation of the new culverts/pipes.
We designed improvements along the existing drainage corridor starting at the headwall located in Cunningham Park in Milton and terminating on Furnace Brook Parkway in Quincy, including dredging and widening a portion of the existing open channel of Furnace Brook.


Pool pump Preva 33
The pump housing is made of glass fiber reinforced polypropylene. Large pre-filter with transparent polycarbonate cover for easy inspection.
The pump is equipped with a drain plug for easy emptying of water during winter shutdown.
Also suitable for saltwater pools. The pump is self-priming and can be installed up to 2.5m above the water surface.
Mechanical seal in carbon-ceramic and stainless steel, shaft in stainless steel.
Connection: internal 1½" and 50mm union coupling.
Each pump is tested in the factory before delivery.


|lower mississippi river level predictions||1.67||0.5||3472||94|
Mississippi has a humid subtropical climate with long, hot and humid summers, and short, mild winters. Temperatures average about 81°F (about 27°C) in July and about 48 °F (about 9 °C) in January.Where is the lower Mississippi River?
The Lower Mississippi River is the portion of the Mississippi River downstream of Cairo, Illinois. From the confluence of the Ohio River and Upper Mississippi River at Cairo, the Lower flows just under 1600 kilometers (1000 mi) to the Gulf of Mexico.What is the temperature of the Mississippi River?
The water temperature in the Mississippi River ranges from 57 to 65 degrees Fahrenheit today.Why is the Mississippi River flooding?
What is causing the Mississippi River to flood? Heavy spring rains caused the Mississippi River to overflow, breaching levees and flooding enormous swathes of the Lower Mississippi Valley. The flooding began in February and only began to recede on May 20th. Does the Mississippi River flood often?


Town of Thorntown | Water
BOONE COUNTY, IN—BLN has worked on various projects for the Town of Thorntown over the years. Thorntown is located just northwest of Lebanon, a few miles west of I-65. Projects that worked on in Thorntown include:
- A complete water system improvements study, which included computer modeling and analysis of the water distribution system, treatment plant analysis, and storage and supply analysis. The following design projects are a direct result of the study.
- Designed a new elevated water storage tank and altitude valve, anew water distribution mains and reinforcement of existing mains, a new storm sewere system and sanitary project was partially funded by a DOC Grant. The project included survey, design, construction administration and inspection.
- Distribution system and treatment plant improvements design and construction oversight.
- Stormwater Improvements Study fudned with a DOC grant.
- Stormwater Improvements project, which included the installation a new storm sewer system throughout the town as well as reinforcement to the existing system. The project was partially funded by a DOC Grant that BLN helped secure. The project included survey, design, construction administration and inspection.


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Seal kit: ORIGINAL/OEM Hydraulic cylinder Seal kit Boom, Arm, Bucket, Center Joint seal kit, Track Adjuster seal kit, Tensioner Cylinders seal kit, Gear pump seal kit, hydraulic pump seal kit, travel pump seal kit, control valve seal kit, swing pump seal kit, any excavator o-ring box, o-ring kit.
If there is any items you will be interesting, please email at w 13570088898 at hotmail dot com


Public Outreach Meeting for Nees Lane Water Main Replacement
- Marilyn J. Praisner Library, 14910 Old Columbia Pike, Burtonsville, MD 20866
Nees Lane 16-inch Water Main Replacement ( BTBR6146A16)
An approximately 0.65 miles of the 16- inch water mains in the Countryside community will be replaced with new ductile iron pipe, which will reduce the frequency of water main breaks. The existing water mains are nearing the end of their life cycle.


Showing the single result
Radial Piston Pump 1R3A-62 Pol
Radial piston arrangement, with 5 pumping elements. external mounting type. Face mounting, Valve controlled, Fixed delivery. Bi-directional rotation of shaft.
Available with extension shaft for through drive. With extension bracket assembly for coupling a low pressure pump having standard flange.(0 reviews)


Construction of Darbang-Myagdikhola Hydropower Project begins
November 27, 2021 12:51 PM NPT
MYAGDI, Nov 27: The construction of the Darbang-Myagdikhola Hydropower Project has started in Malika Rural Municipality. The Dhaulagiri Kalika Hydro Limited has started the construction of the 25MW project with investment from non-resident Nepalis.
Binod Kunwar, Chairman of the Dhaulagiri Kalika Hydro Limited, who is also a former president of the NRN Association in South Korea, said that the project was constructed with the investment of NRNs in Hong Kong, South Korea, Japan, the UK, the USA, and other countries, and the industrialists and local people.
The foundation stone of the project was laid two years ago, but the floods of 2020 and the second wave of the coronavirus pandemic also affected the construction of the project. Project Engineer Prakash Shahi shared that the access road has been constructed, land, office and camp management have been completed and construction of the tunnel has already started. Electricity will be generated by pouring water in the powerhouse to be constructed in Balute.
Under the leadership of Sanima Bank, Prabhu, Kumari, Century, Muktinath, Obha Development and Mahalakshmi Development Bank have also agreed to invest Rs 3.5 billion in the project. The project is estimated to cost a total of Rs 5.15 billion. The target is to start power generation within the next three years.


JIC Reservoir T2
The version 2 JIC type reservoir is constructed with a welded top and clean-out access on each end. The hydraulic reservoir design incorporates a lengthwise baffle positioned between opposing clean-out openings. The reservoir will have predrilled sight gauge holes and a filler riser. The hydraulic reservoir can be customized to suit any requirement. We can add couplings, downpipes, cut-outs, and change any dimensions.


21 Sep Work on design and build of R. Kinolhas Harbor Development Project is well underway
Work on design and build of R. Kinolhas Harbor Development Project is well underway, with overall 60% project progress. We have completed channel dredging operations.
Scope of works include, dredging and excavation operations, construction of a 162m groyne, a 285m breakwater, a 65m revetment, a 186m quay wall, a ramp, installation of a 1663.36sqm harbor pavement, navigational aids and harbor lights. The value of the project is MVR 45.1 million.


GVC provided complete design for this new source development. This project required extensive permitting for the new water source for the Caernarvon Township Authority. GVC worked with both the PA DEP and SRBC to permit and develop this new 500 gpm well. The project included a new well pump, booster pumps, water softener, treatment building, and a 100,000 gallon storage tank. The project was designed to soften and chlorinate the water from the new well prior to distribution in the CTA’s water distribution system. GVC also provided construction phase services for the project.


Shanghai Kaiquan pump (Group) is a large-scale comprehensive pump company integrating design, production and sales of pumps, water supply equipment and pump control equipment in China. It is a leading enterprise in the pump industry in China. The comprehensive laboratory for high-flow, high-power, high-temperature and high-pressure pumps includes two high-pressure stations and two low-pressure stations, which can allow four pumps to test at the same time, and the maximum test flow can reach 150000 M ³/ h. The maximum test pressure can reach 40MPa, the maximum test power is 25000kw, and the maximum diameter of the tested pump can reach dn3000. The pump comprehensive laboratory has a large scale, comprehensive testing capacity and high test accuracy. It is at the leading level in China and even in the world. It is one of the few domestic test stations with the testing capacity of nuclear secondary pumps. It has played a positive role in improving the national industrial capacity and accelerating the localization of large-scale nuclear power, thermal power and equipment in China.
The high-temperature and high-pressure pump comprehensive laboratory includes two high-pressure stations and low-pressure stations, and the four stations can operate completely independently. The principle of the four stations is similar, and the main difference is the voltage and power level of the pump.
The above figure is the typical principle block diagram of No. 1 station
|Measuring point||Equipment name||model||quantity||reference column|
|SP1||Current sensor||SP103501D||3||Stand 1|
|SP2||Current sensor||SP103501D||3||Stand 2|
|SP3||Current sensor||SP691202D||3||Stand 3|
|SP4||Current sensor||SP691202D||3||Stand 4|
|DM1||Distributed substation||DM4041||4||Outlet flow and pressure measurement|
|DM2||Distributed substation||DM4032||4||Outlet water temperature measurement|
|DM3||Distributed substation||DM4041||4||Inlet flow and pressure measurement|
|DM4||Distributed substation||DM4032||4||Outlet water temperature measurement|
|Variable frequency power analyzer||WP4000||4|


Abstract：The RNG k-ε turbulence model was used to simulate the turbulent flow in the centrifugalimpeller with or without shroud. It is found from the calculation results of the shrouded impeller that there is alarge area of recirculation flow near blade suction surface at low flow rate, and there is an obvious vortex justupstream of the impeller leading edge near shroud at high flow rate. The existences of clearance in theunshrouded impeller arouse two vortices. Compared with shrouded impeller, the head, capacity and efficiencyof the unshrouded impeller decrease. The best efficiency is lowered by 18%. A transparent acrylic centrifugalpump which is suitable for PIV measurement has been developed. The results of PIV measurement can be usedto validate the numerical solution and show that the flow in one passage is different to another even at bestefficiency point.
 Cao S L,Goulas A,Yakinthis K.Numerical simu lation of three-dimensional flow in a centrifugal pump impeller[A].北京,1998:11-418 李巍,王国强,刘立军.离心叶轮内三维紊流流动数值模拟[J].上海交通大学学报,2000,34(1):43-147 Yakhot V,orazag S A.Renormalization-group analysis of tur bulence[J].Physical Review Letters,1986,57(14):1722-1724 Moore J,Moore J G.Calculation of three-dimensional viscous flow and wake development in a centrifugal impeller[J].Journal of Engineering for Power-Transactions of the ASME,1981,103(3):367-372 刘立军,徐忠,史峰.离心叶轮内部三维湍流流场的数值分析[J].工程热物理学报,1996,17(3):296-300 杨华,刘超,汤方平.采用PIV研究离心泵转轮内部瞬态流场[J].水动力学研究与进展A辑,2002,17(5):547-552


Talks involving Egypt, Sudan and Ethiopia regarding the construction of a disputed dam on the Nile River have collapsed, the Sudanese Information Minister said on Friday, April 6, 2018.
“The countries were discussing many issues including, the Nile and the dam but we failed to reach any agreement on the matters that caused conflict,’’ Ahmed Mohamed Osman told dpa by phone from Khartoum, where the talks were conducted.
Egypt decried the $4.8 billion hydroelectric Grand Renaissance Dam on Ethiopia’s border with Sudan could reduce its share of waters from the Nile.
Sudan supports the dam.
The dam, which is expected to more than double Ethiopia’s current energy production levels, is more-than-60-per-cent built.
The east African nation would become an energy hub for the continent upon its completion.
At the end of the works, the Grand Ethiopian Renaissance Dam will be the largest dam in Africa: 1,800 m long, 155 m high and with a total volume of 74,000 million m³. The project involves the construction of a main dam in Roller Compacted Concrete (RCC), with two power stations installed at the foot of the dam.
Formerly known as the Millennium Dam and sometimes referred to as Hidase Dam, the Grand Renaissance Dam is a gravity dam on the Blue Nile River in Ethiopia that has been under construction since 2011. It is in the Benishangul-Gumuz Region of Ethiopia, about 15 km (9 mi) east of the border with Sudan.


Posted on :Tuesday , 27th November 2018
It has been announced that the hydropower plant preparations at Stiegler's Gorge in Tanzania are underway. This hydropower plant preparations are proposed for 2,100MW Rufiji hydropower plant.
This preparations will benefit the country as the project will have a gross output of 5,920GWh and also it is expected that the project will double the country's power generation capacity. This project is nearly of $307 million.
Mr. Medard Kalemeni, Energy Minister said "Let me assure you that we are well prepared for the task and nothing is going to hold us back from completing the project on time."
Also in support to this (hydropower plant), Project Execution Committee Chairman, Juma Iddi stated "Other preparatory works include setting up power cooling stations at Pangawe and Dakawa and supply water to the construction sites."
The hydropower plant will have the storage capacity of 34 million cubic meters of water as the dam itself will be of 134m.
At present, Tanzania energy mix comprises of hydropower, natural gas, liquid fuel and biomass. Whereas, the present capacity of Tanzania that has been installed is 1.6GW that supplies power to only over 40 percent of the population.
It has been reported that, the mega project will comprise of nine vertical Francis turbines with a capacity ranging from 200MW to 300MW each and power generation capacity consist of 1200MW each.
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Austin Water plans HPWBANA water improvement project for 2018
Austin Water has planned a project to upgrade water transmission lines in the northwest area, including parts of HPWBANA. The area affected is roughly from Far West Blvd. to Crestway Dr.
The area is currently supplied with a single 12-inch line. The new main would be a 16-line and will improve the level of service and allow Austin Water to decommission the aging pump station and reservoir. Highland Park reservoir is no longer in use, and the pumps are used as an in-line booster station only.
Benefits to the area include less pressure fluctuations during peak demand times and improved fire flow for the area.
The project is scheduled to go into design this fall and construction is estimated to begin in 2018.
Click here for a map of the water improvements project.
For more information call Jill Mayfield, (512)585-0474


The construction of Polavaram, a national project under construction on the Godavari River, has come to an end.Godavari water will soon be released on the spillway to the delta as part of the Polavaram project.The Upper Cofferdam was completed for the construction of the ECRF as part of the project construction.It is reported that the first trial of Godavari water from the Polavaram project will be unveiled today (Friday).Water will be released to the Delta via the Approach Channel at 11.30 am this morning.Water will be released over the spillway.
AP government and Megha Engineering company will jointly launch the first trial of the prestigious Polavaram project.
Ministers Anil Kumar and Alla Nani will participate in the virtual inauguration ceremony.Polavaram MLA Balaraju, ENC Narayana Reddy along with officials will participate in the inauguration ceremony.
However, Rangarajan will participate on behalf of Megha Engineering Company.The water will be diverted from the Godavari River to the Approach Channel.
The water reaches the Dhavaleswaram Cotton Barrage through the Spillway and sluice gates, from where it reaches the Central Delta as well as the Godavari Delta through the east and west canals.The flow from the Godavari River will be diverted by 6.6 km.


Chotiari Dam (Urdu: چوٹیاری ڈیم ) is an artificial water reservoir situated 35 km away from the Sanghar town in Sanghar District, Sindh, Pakistan. It was constructed in December 2002, at the total cost of Rs 6 billion. The main purpose of construction this dam is discharging saline water of Left Bank Outfall Drain (LBOD). The dam is extended to 24300 acres with storage capacity of 0.75 million acre feet.
Before the construction of reservoir this site was home to few natural lakes were fed by tributaries of Nara Canal. It is also wetland and habitation of birds, reptiles and small mammals. Now environment and wildlife of this area is badly affected by discharging of saline water of Left Bank Outfall Drain (LBOD).
- "Chotiari reservoir affectees". Dawn news. 31 October 2011. Retrieved 23 June 2012.


The original Cotter Dam, a concrete gravity dam, was completed in 1915 built to a height of 18.6m. It was raised from 1949 – 1951 to a height of 28.5m to accommodate a growing population. It served as Canberra’s primary water source until the 1960’s.
The dam was enlarged again between 2009 & 2013, this time by constructing a new 80 metre high roller compacted concrete dam wall approximately 100 meters downstream from the original dam wall. This new dam wall increased the holding capacity of the reservoir from 4GL to 78GL.
The enlarged Cotter Dam, completed in 2013, was built as part of a suite of projects to ensure the ACT has a secure water supply. The new dam allows us to better deal with future droughts without having to endure high level water restrictions.
TECHNICAL SUPPORT AND DESIGN
CE Construction Solutions provided technical support and design solutions through the construction of this iconic concrete infrastructure project. Our involvement include development of concrete admixture solutions to the complex roller compacted concrete mix design through to the grout enriched facings of the dam walls.
Throughout the dams erection CE Construction Solutions were on-hand to provide support and design solutions to an array of the infrastructures complex construction needs.
For over 40 years’ CE Construction Solutions have been the trusted distributor of BASF’s concrete admixture range. We work with a wide range of the concrete industry including pre-mixed concrete manufactures, pre-cast manufactures, concrete benchtop builders and many other parties invested in concrete elements.
We understand the importance of balancing the durability and sustainability needs of major infrastructure assets with the practicality of construction in today’s market. Speak with our technical team today about how CE Construction Solutions can assist with your next major infrastructure project. (02) 6280 6010 or email@example.com
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MELAKA RIVER REHABILITATION AND BEAUTIFICATION PROJECT
The main objective of the project is to improve the overall condition of Sungai Melaka and its riverine environment by creating a world class river front that recaptures the characteristics of old Melaka. The firm undertakes the study, design and construction supervision of the following:
- Hydrologic and hydraulic modelling of Sungai Melaka to ascertain the impact of river embankment works
- River embankment wall to stabilise and beautify the river banks, and boardwalk for nature conservation
- Surface drainage improvement works and interfacing with river embankment works
- Sewer interceptor systems and sewage treatment plant
- Minor dredging of Sungai Melaka
- Storm water pump station to solve localised flooding
- Bridge to CIQ Complex
- Tidal analysis and design of tidal barrage
This project was selected as a winner of the Special Category Award 2009 by the Pertubuhan Arkitek Malaysia (PAM).
EIA, detailed design and construction supervision.
Pembinaan Kaleigh Sdn Bhd Pesona Metro Sdn Bhd JV


Simulation Analysis of Hydraulic Jet Pump
Hydraulic jet pump is one of the mixing-reaction equipments using high-speed jet for work force to deliver energy and mass of fluid. Many factors affect the efficiency of this pump, and the mechanism is very complex. The present work aims to study the influence of different hydraulic structures on the efficiency. Based on computational fluid dynamics, two-dimensional oil flow in hydraulic jet pump with different structural parameters (area ratio, throat length and spray distance) was simulated. Calculation results show that: area ratio determines the suction capacity, throat length determines the mixing efficiency, and spray distance determines the outlet pressure. Since numerical simulation method can reduce experimental expenses and design cycle, our approach may provide some references for safe design and engineering practice of hydraulic jet pump.
Helen Zhang, Gang Shen and David Jin
H. J. Zhu et al., "Simulation Analysis of Hydraulic Jet Pump", Advanced Materials Research, Vols. 204-210, pp. 293-296, 2011


This paper describes the design of the marine riser structures, including the
design measures for sealing and protection from flooding, dewatering and
connection to the main tunnels, for the Gold Coast desalination plant in
Queensland. The risers connect the intake and discharge tunnels to the ocean.
Construction commenced on both in April 2007.
The paper describes the key design criteria for the risers, the construction
constraints that influenced the design and the design of the main elements of
the risers and the connections to the tunnels.


L’Ormarins Hydro Power Plant: Civil and Structural Engineering work, including bulk water transmission pipelines ranging from 450- to 630 mm diameter with nominal working pressure of up to 3 000 kPA, Hydro building structures including water collection channels and chambers (450mm HDPE pipes were used in upper section). The work included flow meter-, air valve- and valve chamber assemblies, inlet/outlet structures and outflow channel to accommodate flows up to 700 l/s, and thrust block arrangements to withstand forces in excess of 300 kN.
Project no: 899
Client: I & F Engineering
Period: August 2013 to June 2016
Project value: R60m


AUTOMATION AND MONITORING SYSTEM OF HYDRAULIC STRUCTURES OF MIEDZNA RESERVOIR
Site automation system and hydro/meteorological measurement system.
The task was a complex range of work, starting from recreating electrical wiring, power supply systems, data control, new control cabinets, datalogging and communication systems concerning control and power supply systems of the main dam along with pumping stations „Ossa” and „Nadole”.
Hydro-meteorological monitoring system is used for controlling and measuring tasks. Additionally it sends information to the automation system which controls the state of the dam.


Pentair Myers MSKHS Cast Iron Sewage Pumps
The MSKHS submersible sewage pump is specifically designed to meet the demands of wastewater and sewage handling in residential and commercial building applications.
- Carbon/Ceramic type 21 mechanical seal
- Oil-filled motor with automatic reset thermal overload for maximum protection (single phase models)
- Upper and lower single-row ball-bearing construction


The Kardzhali Hydro Power Plant (Bulgarian: ВЕЦ Кърджали) is an active hydro power near Kardzhali, southern Bulgaria constructed on the dam of the same name on the river Arda. It has 3 individual turbines with a nominal output of around 36 MW which deliver up to 108 MW of power.
Together with the Ivailovgrad HPP and Studen Kladenets HPP, Kardzhali HPP forms the Dolna Arda Hydro Cascade with total capacity of 276 MW. There is a 65,000,000 euro modernization plan for the three power plants.
Kardzhali Hydroelectric Power Station
© Bing Maps
By Dania @ 2010-09-27 15:21:14


The performance of the Sturgeon Falls hydroelectric power plant being subpar, the project consisted in replacing the existing Francis horizontal turbines with 3 turbines and generators with a vertical axial flow of 2 MW once installed. The power plant, built in 1912, is owned by the Municipality of West Nipissing in Northern Ontario. The project was completed in accelerated mode where the design and construction were done in parallel, within a 15-month timeline.
Nature of the services
- Simultaneous engineering and construction with an integrated design approach
- Preliminary and final plan and specification designs for the overall work
- Procurement and contract management
- General contracting and work management
- Monitoring services
|−||Quality control and assurance|
|−||Inspection during the construction phase|
Specificities of the project
- Replacement of the old turbines with 3 turbines and generators with a vertical axial flow (2 MW “Saxo”)
- Major structural change made to a plant dating back to 1912
- Roof change to allow for access to the crane for the turbine-alternator installation.


25 Oct Work on Design and Build of N. Henbadhoo Harbour is nearing completion
Work on Design and Build of N. Henbadhoo Harbour is nearing completion, with overall 93% project progress. Pavement casting works and construction of revetment for the project is currently ongoing, with 60% and 12% completion, respectively.
Scope of works for the project include dredging and excavation operations of 44,615cbm; the construction of a 203m quay wall; a 259m breakwater; and a 173m revetment. Additionally, construction of 1,015sqm of paved area will also be undertaken. The estimated value of the project is MVR 26.6 million. The project was mobilized on 12th September 2019.


The objective of the Project was to improve certain water and wastewater infrastructure in Albania, which was in deplorable conditions.
The Contract consisted on the design and supervision of construction works for the water supply and sewerage systems, with wastewater treatment plant, for Vlora, Ksamil, Kavaja and Lezha/Shengjin, namely:
- Construction of the secondary and tertiary sewerage system in Vlora;
- Construction of the sewerage system in Ksamil;
- Extension of wastewater treatment plant in Kavaja;
- Rehabilitation and extension of the sewerage system in Lezha/Shengjin.
The implementation of the Contract was divided into two phases:
- Phase 1: Design and Tender documents
- Phase 2: Supervision of Works
The number of direct beneficiaries of the sewerage system in Vlora and Ksamil is, respectively, 129,000 and 75,000 people while the extension of Kavaja treatment plant will increase its capacity of the to 100,000 inhabitants.
The works included the construction of pipelines, pumping stations and wastewater treatment plants.


Tippagondanahalli lake, once the source of piped water for the city, my come back to life nearly a decade after pumping was stopped as the water was deemed unfit for human consumption.
On Wednesday, a ₹260-crore project to rejuvenate and revive the reservoir was launched by Deputy Chief Minister G. Parameshwara.
Works include setting up of a 20 million litre per day Sewage Treatment Plant, revival of the pumping network, dredging and cleaning the reservoir where years of sewage let off into the Arkavathy river has accumulated. A 110 MLD plant to treat stored water will also be built.
The project is expected to be completed by 2021 after which the reservoir and the upstream Hessarghatta reservoir will start receiving nearly 2.5 TMC of water from the Yettinahole river diversion project, said Bangalore Water Supply and Sewerage Board (BWSSB) officials.
Source: Read Full Article


Met Consultancy Group (Met) undertook the civil and structural design work on the upgrade to Yorkshire Water’s sewerage system at Holmes Market, Doncaster.
The redevelopment of the canal basin at Holmes Market, Doncaster meant it was necessary for Yorkshire Water to adjust the sewerage system in the area.
Met undertook the Civil and Structural design of the works on behalf of Earth Tech Morrision (ETM) which included:
- the detailed alignment of the Rising Mains, and
- the design and detailing of the Inlet Works, Pumping Station and CSO.
Flows will be pumped from Holmes Market Pumping Station, via the rising main consisting of 4kms of twin 450mm ductile iron pipes laid beneath residential areas. This goes through to a new Inlet Chamber and CSO at Sandall Waste Water Treatment Works, where the existing inlet works and storm tanks were modified and refurbished respectively. Additionally, a new sewage pumping station with odour and septic control was constructed 50 metres away from the existing station which is to be decommissioned.


Friction Torque of Rotating Hydraulic Cylinder with Deep Circular Groove Oil Film Face Seal
Power chuck is an important component for machine tool. In order to solve the existing problem of oil-allocating for rotating hydraulic cylinder of power chuck, a new kind of rotating hydraulic cylinder based on hydraulic slipring is suggested. The deep circular groove oil film face seal technology is applied in the hydraulic slipring for oil transmission. Taking account of the vary of viscosity, the frictional torque of the seal face is simulated in detail. The experiment data prove the preciseness of the theoretical analysis. These theories provide reference for the practical application of the rotating hydraulic cylinder.
Zhengyi Jiang and Chunliang Zhang
Z. D. Hu and J. H. Jiang, "Friction Torque of Rotating Hydraulic Cylinder with Deep Circular Groove Oil Film Face Seal", Advanced Materials Research, Vols. 97-101, pp. 1937-1941, 2010


Maldives Transport and Contracting Company (MTCC) has announced the design and build of Hdh. Nellaidhoo harbor project is 65 percent complete.
The pavement works are currently ongoing and will be completed soon.
The overall project works include dredging and reclamation of 62,863 cubic meters, 331 meter breakwater construction, construction of a 204 meter quay wall, and 50 meter revetment.
Moreover, the project also includes installation of navigation lights and street lights. The project is valued at MVR 47.62 million.