- JMD350 300 cbm/h Cutter head Sand Suction Dredger for Sale
- 1050 m3 hydraulic cutter suction dredger machine for sale
- 7000m3/h hydraulic cutter suction sand dredger equipment for sale
- 24inch hydraulic cutter suction dredger vessel for sale
- 1,500cbm/h 24inch Hydraulic mini cutter suction sand dredger with double dredging pump for sale
- China 20inch small and lower price sand dredger for sale
|Brand Name:||Jin Meng sand Dredger||Place of Origin:||Shandong, China|
|Certification:||ISO9001||After-sales Service Provided:||Engineers available to service machinery overseas||Warranty:||1 Year|
|Condition:||New||Draught:||170 cm||Dredging Depth:||15 m|
1. Weifang Jin Meng Dredger Co., Ltd.
Weifang Jin Meng Dredger Co.,Ltd. located in Qingzhou, Weifang City, is a manufacturer for river cutter dredge, work boat and gold dredging equipment,which is specialized in dredgeing equipment researching, designing, production and sales.
We have professional R&D department, CAD drawing design center, quality control department and after sales service department. Our company has more than over 500 employees, including 5 professional senior engineers on river cutter dredge building and researching, 16 designers on machinery construction, 8 engineers on quality inspecting and controlling as well as 10 after sales service engineers.
2. River cutter dredge Models
River cutter dredger different model with main specifications
|Model||Dia.Discharge pipe||Working capacity||Dredging depth||Discharge distance||Total power|
3. JMD600 River cutter dredger
A. JMD600 1500M3 River cutter dredger machinery with brief specifications as below:
|JMD600 River cutter dredger machinery|
|Dia. Discharge pipe||600mm|
|Max. Working capacity||1500m3/h|
|Hydraulic Auxiliary engine||450KW||DEUTZ|
|Hydraulic system||Hydraulic pump||VICKERS America (Joint-venture)|
|Hydraulic Motor||Italy SAI technology(Joint-venture)|
|Valves||REXROTH Germany (Joint-venture)|
|Operating system||SIEMENS PLC(Imported from Germany)|
B. River cutter dredger machinery__ Cutter Head
For one cutter head, there are 6 blade, 7 teeth equipped on one blade. There is material Cr. for easy-wearing proof.
Cutter head is driven by hydraulic motor; cutter bearing has lubrication seal-in units.
C. River cutter dredger _____Hydraulic sysyetm
The most important parts of river cutter dredger and wheel bucket dredger. The hydraulic system requirements are very high and strict; it’s the main artery of the entire sand suction dredger. Lateral traction winches, lifting winch and cutter head of the dredgers are driven by hydraulic motors.
D. River cutter dredger machinery___ Diesel engine__DEUTZ
DUETZ engine___Germany technology
Testing equipped on the discharge pipeline on the river cutter dredger machinery. The river cutter machinery has DEUTZ engine and hydraulic system for easily operation.
E. River cutter dredger machinery______ KINDA Pump
Flow passage components use High wear resistant alloy Cr27 to prolonged the pump service life, pump shaft seal use packing seal which is easy to maintain , and antifriction bearings are from Janpanese brand NSK.
F. River cutter dredger machinery____ PLC control system SIEMENZ
4. FAQ for River cutter dredger
1). River cutter dredger machinery test before-ex-factory
Do your river cutter dredger have a test before ex-factory?
Yes, it must be. Each river cutter dredger machinery must be tested very well before ex-factory so that can guarantee river cutter dredger performance at customers' working sites and save the time and cost for customers. Before test we will send invitation letters to the clients to invite them come and do the performance inspectation by themselves, after get the clients permition and the river cutter dredger will be transported to the port for loading.
2). River cutter dredger transportation in bulks
How is the river cutter dredger transported?
There are two ways for river cutter dredger being transported, if the sand dredger size smaller than JMD350, it is easy to transported by containers; if the river cutter dredger size is larger than JMD350, it will be transported by bulks. The river cutter dredger structure is dismountable and assembled so that can be easy transported by trucks on road.
3). River cutter dredger after sales service
What kind of service will supply after sales?
After arriver river cutter dredger arrive at clients'working site, we will send two experienced enginneers for river cutter dredger body assembly and native workers' training. With the asist of ancillary equipment like excavators and cranes , the river cutter dredger assembly can be finished within 10days and training can be in one week.
5. Welcome customers to have a visit in our factory, cars are availabe to pick you up from airport and train stations,so that we can talk river cutter dredger business and more details face to face.
6. River cutter dredger Drawing
- Jet Suction Dredger Co., Ltd.
|Cutter dredger||Cutter suction dredger||Gold dredger||Gold mining machine|
|Sand dredger||Small sand dredge||Suction dredge||suction dredger|
- 20 inch Hydraulic Cutter suction dredger boat for sale
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- 18 inch Cutter Dredger Hot Sale at Low Price
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- 1100cbm/h 14inch Hydraulic Suction Dredge with Cutter Head
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Siliqua - Italy
Cixerri Land Reclamation Authority
1972 - 1983
Description for Casteddu (Italy)
Three-dam projects for irrigation purposes.
- Medau Zirimilis Bituminous Faced Rockfill main dam (BFRd, H = 60 m, L_crest = 500 m, V = 1.4 Mm³)
- Carru Segau Bituminous Faced Rockfill secondary dam (BFRd, H = 16 m, L_crest = 1'220 m, V = 0.4 Mm³)
- Rio Sa Schina de Sa Stoia concrete weir (H = 11 m, L_crest = 55 m)
- Rio Mannu concrete weir (H = 6.2 m, L_crest = 19 m)
- Intake tunnel (L = 1'381 m, D = 2.7 m, Q = 24 m³/s)
- Spillway (Q = 681 m³/s)
- Auxiliary spillway (Q = 157 m³/s)
- Bottom outlet
Dire Dam (Ethiopia)
Earthfill dam with impermeable core for water supply to Addis Ababa and to...
Enguri Cascade (Georgia)
ENGURI HPP Cascade envisages the construction of three hydropower plants on...
Maswa project including domestic water supply pipeline for the district...
Gibe II (Ethiopia)
Gibe II is the second stage of the Gibe-Omo hydroelectric cascade which...
Water supply system for the district of Abuja, including pipelines, pumping...
Alto Temo (Italy)
Water storage plant for irrigation purposes with a capacity of 90 Mm³
Simbirizzi (Settimo S. Pietro) is a small hydroelectric plant to supply the...
Water storage for irrigation, capacity 58 Mm³.
Bumbuna (Sierra Leone)
This is one of our pet projects that we have...


Water Pressure Regulator with oil filled pressure gauge
COVNA Brass Water Pressure Reducing Valve with gauge is marked with water inlet direction, can withstand pressure of 1.6MPa. Applicable to hydraulic instability, water flow too fast, water purifier, solar energy, gas heater, faucet, etc. The Brass regulator come with Inlet screened filter helps to filter particles like gravel, debris to prevent impurity blocking and valve body damage. Durable pressure gauge to make the pressure information more clear.
- Model: Relief Valve
- Size Range: 1/2" to 2"
- Pressure Range: 0-160 Psi
- Material: Brass, Stainless steel
COVNA Brass Water Pressure Reducing Valve With Gauge Features:
- Do not require a minium operating pressure
- Zero leakge rating, all coils are ce approved
- Wide range of coil voltages, low temperature of operating
|G / NPT
|Water, non-corrosive liquid
|Adjust Pressure Range


BYPASS REPAIR OF MIKOWA PUMPING STATION
Temporary pumping station on the task of Modernization of the “Włochy-Mikowa” Channel Pump Station in Warsaw
During the works related to the reconstruction of the pumping station “Włochy Mikowa” in Warsaw, it was necessary to provide by the General Contractor, Inżyniera Rzeszów Sp. z o.o., professional solution for the construction and maintenance of a temporary sewage pumping station for the duration of construction and engineering work on the construction of a new main pumping station building. The comprehensive UPRENT offer, including in particular remote control of electric pumps with the possibility of on-line monitoring, has been selected as the most advantageous in terms of costs and engineering. .
The main assumptions of the pumping station are:
- Declared maximum inflow of 600 m3 / h
- Wastewater collection from the depth of 8 m,
- 30m long discharge,
- Connecting the discharge pipeline to the existing pipeline 2 x DN 400,
- Electric supply.
2 pcs. Hidrostal F10HD
1 pc. PLC control container 2 x 45kW
1 pc. Busch vacuum pump
2 x 30m of the DN200 pipeline
To work as part of a substitute pumping station system, two Hidrostal F10HD electric pumps with a maximum capacity of approx. 990 m3 / h each and an engine power of 37 kW were installed. The pumps are controlled automatically by means of an on-line PLC control container that regulates the pump power depending on the sewage inflow. Permanent control over the operation of the pumps is possible thanks to remote access to the PLC container and the SMS notification system that sends alarm signals to the indicated telephone numbers. The discharge pipeline consists of 2 independent steel pipes with a diameter of d200 and a total length of 60m.
Project in numbers:
10 months of the planned period of service provision,
1600 m3 / h of maximum capacity of the pumping system,
24/7 supervision over pump operation


UDHAGAMANDALAM: Chief minister Edappadi K Palanisamy
on Friday laid the foundation for the Kundah Pumped Storage Hydro-Electric Project (4x125MW), which would come up at Kattukuppai
in Nanajanad village in the Nilgiris.
This is a pumped storage hydro-electric project, a first of its kind in the Nilgiris, unlike conventional hydro projects. The surplus energy available during off-peak time is to be utilised for pumping water from the lower reservoir to the upper reservoir and the water will be utilised for power generation during peak time. The project is estimated to cost Rs 1,850 crore.
Under the project, Tangedco’s Porthimund
and Avalanche-Emerald reservoirs in the district would be utilised as the upper and lower reservoirs respectively, according to Gunanan, executive engineer, Tangedco. He said, “An underground power house is proposed to house four units of 125MW each, which can be reached by means of an underground tunnel. There is no use of surface area in this project and it is totally eco-friendly.”
Pumped storage hydro-electric project was first installed in Tamil Nadu
at Kadamparai in 1984.
And the Kundha pumped storage hydro-electric project is the second of its kind in Tamil Nadu. Porthimund and Avalanche-Emerald reservoirs in the Nilgiris were established in 1965.
“In conventional method, power is generated from particles of running water. In pumped storage hydro-electric system, power is generated from the upper reservoir while there is demand for supply. While there is surplus power in the grid, water is pumped up to the upper reservoir,” Gunanan said, adding, “The available structures in the Nilgiris is utilised for power generation.”
Funded majorly by Rural Electrification Corporation (REC), the project is likely to be completed by 2022. “With 500MW capacity, the project could generate 1095 million units of power in addition in a month,” the official said.
While Rs 1,460 is funded by REC, the balance will be borne by Tangedco. “Within 6-8 years the cost of establishment could be recovered,” the official said.


The National Weather Service says the Mississippi River is rising again...minor flooding possible and a floodwarning has been issued for Wabasha.
The Mississippi River is on the rise again...thanks to a very wet spring so far. This latest storm system has dropped a good deal of snow on parts of the area...and has also dropped widespread rainfall. this combination looks like it will cause the Mississippi to rise.
* flood warning for
the mississippi river at wabasha runs
* from Tuesday morning May 7 until Friday May 10.
* at 10:00 am friday the stage was 11.5 feet.
* flood stage is 12.0 feet.
* minor flooding is forecast.
* forecast...rise above flood stage by Tuesday morning and continue
to rise to near 12.1 feet by Tuesday evening. The river will fall
below flood stage by Thursday evening.
* impact...at 12.0 feet...the river affects low lying areas.
The Mississippi River at Winona was 10.9 feet Friday morning. Flood stage is 13 feet.


Lake Huron Water Treatment Plant in Fort Gratiot Township
The project work scope included the following:
- Demolition and abandonment of the existing sludge clarifier and pump station
- Construction of the new raw sludge pumping station
- Installation of new decant piping for existing sludge lagoons 5, 6, and 8
- Construction of reinforced concrete junction chambers and new process and yard piping Improvements
- Construction of a new one-million-gallon reinforced concrete sludge retention basin with influent sluice gates
Weiss Construction is the general contractor for the project and intends to self-perform all required trade work except the drilled piers and electrical/I&C and painting work. As of Winter 2020, the drilled pier work is complete, and the structural concrete for the new retention basin is well underway. The project is expected to achieve substantial completion by August of 2021.


1300 MW electricity to be added to the national grid
KATHMANDU: The government is all set to add 1,300-MW electricity to the national power grid of the country within the next fiscal year.
A goal has been set to complete all the ongoing hydropower projects and expedite the under-construction projects in the country.
The government is planning to accomplish the ongoing construction of Upper Tamakoshi, Rasuwagadhi, Sanjen and Madhya Bhotekoshi hydropower projects in the upcoming fiscal.
The construction of 456-MW Upper Tamakoshi project has so far witnessed 99.5 percent progress in terms of physical development.
Similarly, the 111-MW capacity Rasuwagadhi hydropower project is also making speedy progress.
In the budget speech delivered by Finance Minister Dr Yubaraj Khatiwada, today, the energy sector has been put on special priority as in the previous years. The Upper Sanjen (14.8-MW), lower Sanjen (42.5-MW), Madhya Bhotekoshi (102-MW) are also progressing in a manner so as to be completed in the upcoming fiscal year.
According to the budget plan, the government has laid emphasis on the construction of hydropower projects with reservoir and semi-reservoir for energy mixture and security.
Meanwhile, the government has allocated budget of Rs 4.13 billion for the promotion of alternative energy.
However, the lockdown enforced by government to prevent COVID-19 transmission has deferred the progress in construction of the projects.


Hydraulic power units operated as constant supply pressure systems remain to be widely used in the industry, to supply valve controlled hydraulic drives etc., where the hydraulic power units are constituted by variable pumps with mechanical outlet pressure control, driven by induction motors. In the analysis of supplied drives, both linear and rotary, emphasis is commonly placed on the drives themselves and the related loads, and the supply system dynamics is often given only little attention, and usually neglected or taken into account in a simplified fashion. The simplified supply system dynamics used in such analyzes is often justified by short supply lines and/or the utilization of accumulators near valve inlets, accounting for the majority of possible supply pressure variations. Such considerations are reasonable in many test benches, where the supply pressure variations are small enough such that limited impact on the drive dynamics is observed. Such ideal properties however, are not necessarily present in industrial hydraulic applications for various reasons, with the most common being large volumes of supply lines. Long supply lines, hence large supply line volumes, between the supply system and drives will reduce the flow-to-pressure gain of the supply system, and hence increase the time constant of the supply pressure dynamics. A consequence of this may be large variations in the supply pressure, hence large variations in the pump shaft torque, and thereby the induction motor load torque, with possible excitation of the induction motor dynamics as a result. In such cases, the coupled dynamics of the pressure controlled pump and induction motor may influence the supply pressure significantly, possibly affecting the dynamics of the supplied drives, especially in cases where pilot operated valves with internal pilot supply are used. This paper is concerned with the analysis and characterization of the coupled pump-induction motor dynamics, confined to hydraulic power units constituted by an axial piston pump with mechanical outlet pressure control, driven by an induction motor operated at grid conditions. Furthermore, a simplified general model representation of the coupled dynamics is established, accounting for the entire dominating dynamics of the supply unit. Results demonstrate the accuracy of the simplified model representation.
- Fluid Power Systems and Technology Division
Dynamic Analysis and Characterization of Conventional Hydraulic Power Supply Units
Schmidt, L, Liedhegener, M, Bech, MM, & Andersen, TO. "Dynamic Analysis and Characterization of Conventional Hydraulic Power Supply Units." Proceedings of the BATH/ASME 2016 Symposium on Fluid Power and Motion Control. BATH/ASME 2016 Symposium on Fluid Power and Motion Control. Bath, UK. September 7–9, 2016. V001T01A026. ASME. https://doi.org/10.1115/FPMC2016-1756
Download citation file:


Which river flows out of Jackson lake?
The Snake River flows into and out of Jackson Lake in Wyoming. The lake was enlarged by building a dam in 1911, largely rebuilt in 1989.
Sort of, except the river doesn't go directly to the sea. St. Mary's River is the main outflow for Lake Superior, and carries the water into Lake Huron. Lake Huron's outflow is the St. Clair River, which flows into Lake St. Clair, which flows into the Detroit River, which flows into Lake Erie, which flows into the Niagara River, which flows into Lake Ontario, which flows into the St. Lawrence River, which leads to the…
The Peace River originates in the Rocky Mountains of British Columbia and flows into northern Alberta. Near Lake Athabasca and Lake Claire the Peace flows into the Slave River which flows into Great Slave Lake in the Northwest Territoritories. The Mackenzie River drains Great Slave Lake and eventually drains into the Arctic Ocean, all within the Northwest Territories.
The Colorado River forms Lake Powell on the border of Utah and Arizona, and the river continues into the Grand Canyon, forms Lake Mead at the Hoover Dam, creates Lake Havasu, passes through Mexico and enters the Pacfic Ocean via the Sea of Cortez. The Colorado River. The Colorado River. The Colorado River is the largest river that flows from Utah to Colorado, through Lake Powell.


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Clients and Partners
Construction of Transport Infrastructure
"Northern Latitudinal Route"
Nineteen Vessels will be Part of the Dredging Operations on Sabetta Arctic Port Construction Project
Nineteen vessels will be part of the dredging operation on Sabetta arctic port construction project on


Mactaquac is a 670MW hydro power project. It is located on Saint John river/basin in New Brunswick, Canada. The project is currently active. It has been developed in single phase. The project construction commenced in 1964 and subsequently entered into commercial operation in 1968.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||670||670||–||Active||New Brunswick, Canada|
The project is currently owned by New Brunswick Power.
Mactaquac is a run-of-river project. The gross head and net head of the project are 37m and 35.4m 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 6 in number. The penstock length is 55m. The penstock diameter is 8.84m. The project generated 1,600 GWh of electricity.
The project construction commenced in 1964 and subsequently entered into commercial operation in 1968.
The turbines for the hydro power project have been supplied by Andritz Hydro, Power Machines and Voith Hydro Holding.
The electric generators for the project were procured from Andritz Hydro and Voith Hydro Holding.
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.


1.Portable compact design, easy to carry.
2.Easy operation, and maintenance.
3.High pressure discharge head, and large capacity.
4.Powerful electrical motor,high reliability.
5.Suitable for agricultural spraying.
6.Self priming suction function.
1. Ambient Temperature：Max. +40°C
2. Liquid Temperature：+0°C ~ +40°C
1. High Pressure Hose(30ft.)
2. Spray Gun
3. Overflow Hose
4. Suction Hose Pipe with Inlet Filter
1. Spray Gun
2. Hydraulic Testing Kit
- Pressure Gauge
- High Pressure Hose Pipe


500' west and 200' east of the center of the bridge.
The existing structure is two large corrugated metal pipes arches with concrete headwalls and wingwalls. There are numerous perforations along the pipes and deep pitting. The wingwalls are also spalling. The bridge is structurally deficient and was selected by the Pontis Bridge Management System for work. It has a sufficiency rating of 69.8 and ranked 63rd in the 2013 DelDOT Bridge Deficiency List.
This project involves removal and replacement of the existing pipes and headwalls in their entirety. The replacement structure will be concrete box beams on concrete abutments on driven concrete piles. Riprap will be placed to stabilize the channel and banks to prevent scour and erosion. Within the project limits, the pavement and guardrail will be upgraded and tied into the Paving project from 2018. The work will be performed under a full road closure.
Design work to be completed no later than February 2019.
Construction work to be completed December 2019.


The PR3442 ultra slim submersible transmitter has been designed for the accurate measurement of the depth and level of liquids in borehole applications.
Standard output signal is a 4-20 mA two wire. Supply range is 13-36 Vdc, with integral transient voltage protection. Electrical connection is via a high strength moulded polyurethane cable with internal tube for excellent trouble-free venting to the surface atmosphere. The standard depth transmitter is fitted with a stainless-steel nose cone with radial inlet holes to prevent sludge build-up. The PR3442 has a slim-line 16 mm diameter suitable for 19 mm boreholes or greater.
Applications include borehole level and reservoir level monitoring, water mains pressure measurement in inspection chambers, power level, and outlet pressure measurement on submersible pumps.
|Outputs (Analogue)||4…20 mA|


Located on the Missouri River 75 miles upstream from Bismarck, N.D. Garrison Dam is one of the largest rolled earth-fill dams in the world.
Garrison Dam was constructed as part of the Pick-Sloan Plan for development of the upper Missouri River Basin. Construction on the $294 million dam project began in 1947 and closure of the embankment occurred in April 1953. Earthwork was completed in the fall of 1954.
Today, the public lands and water of Lake Sakakawea provide a variety of benefits to the public, including: recreation, fish and wildlife enhancement, flood control, hydropower production, navigation and irrigation.
Exhibits in the power plant lobby feature displays on the construction and operation of the Garrison Dam and recreational opportunities on Lake Sakakawea. The Corps provides tours of the power plant daily during the summer months and by scheduled appointments the rest of the year.
From Bismark, take U.S. Highway 83 north to Junction Highway 200 and then 10 miles west to Riverdale
Source: U.S. Army Corps of Engineers


Darwin Region Water Supply Infrastructure Program - Stage 1
The project involves returning the Manton Dam to service. This will involve upgrading existing infrastructure and building the first phase of the Strauss Water Treatment Plan and distribution network.
The project also involves preconstruction activities for Adelaide River Off-Stream Water Storage (AROWS) project. This includes environmental impact assessment, pre-tender concept design, delivery model assessment, and re-confirmation of financial and economic outcomes.
The project will enable an additional 14 GL of usable water storage capacity and make 7.3 GL per annum available for productive use.
The $324.1 million project is jointly funded by the Australian Government ($300.6 million) and the Northern Territory Government ($23.5 million).
Australian Government funding is provided through the National Water Grid Fund.
The project is currently in the planning stage.


Dam of Alcántara
This is one of the 5 reservoirs built in the channel of the river Tagus in Extremadura.
The José María Oriol-Alcántara II reservoir, better known as the Alcántara reservoir, is an artificial reservoir for the production of electricity.
The reservoir covers an area of 10,400 hectares (equivalent to 15,000 football fields), which corresponds to the area of land that is flooded when the reservoir reaches its maximum level.
The dam, 130 meters high, is built with concrete and its typology is gravity, designed to contain large volumes of water.
The Alcántara dam has a hydroelectric plant at the foot of the dam with four generators capable of obtaining a power of up to 915 MW; Sufficient to supply electricity with a city of 450,000 inhabitants.


Pembelik is a 131.6MW hydro power project. It is located on Peri river/basin in Elazig, Turkey. 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 2010 and subsequently entered into commercial operation in 2015. Buy the profile here.
The project was developed by Darenhes Electric Production. The project is co-owned by Bilgin Enerji Yatirim Holding and Limak Enerji, with their respective ownership stake of 50% each.
Pembelik is a reservoir based project. The gross head and net head of the project are 77m and 69.4m respectively. The project generated 405 GWh of electricity. The project cost is $176.344m.
The project construction commenced in 2010 and subsequently entered into commercial operation in 2015.
Andritz Hydro was selected as the turbine supplier for the hydro power project. The company provided 2 units of francis turbines, each with 65.8MW nameplate capacity.
Andritz Hydro supplied 2 electric generators for the project. The generator capacity is 74.2 MVA.
For more details on Pembelik, buy the profile here.


ISLAMABAD, Pakistan: In a bid to review the construction activities, Prime Minister Imran Khan next week will visit the Diamer Basha Dam being constructed on River Indus, 315 kilometers upstream of Tarbela Dam.
In a press release issued on Saturday, the Water and Power Development Authority (WAPDA) said that after the Mohmand Dam which was started last year, the Diamer Basha Dam is the second mega multi-purpose dam that has been commenced in about a year.
The Diamer Basha Dam is a vital project for water, food, and energy security of Pakistan, and scheduled to be completed in 2028-29.
The project has three core objectives namely water storage for agriculture, flood mitigation, and hydel power generation.
The dam will have a gross water storage capacity of 8.1 million acre-feet to irrigate 1.23 million acres of additional land.
The project with an installed power generation capacity of 4,500 megawatts will provide more than 18 billion units per annum to the national grid.


- Flood Warning issued May 12 at 9:39AM CDT until May 15 at 7:00PM CDT by NWS
- Effective: 9:39 a.m. on Thursday, May 12, 2016
- Expires: 7 p.m. on Sunday, May 15, 2016
...The Flood Warning is cancelled for the following river in
Missouri River at Boonville affecting Cooper and Howard Counties.
...The Flood Warning continues for the following rivers in Kansas...
Missouri River at Atchison affecting Atchison...Buchanan and Platte
Missouri River at Leavenworth affecting Leavenworth and Platte
Missouri River at Glasgow affecting Chariton...Howard and Saline
Missouri River at St Joseph affecting Doniphan...Andrew and
Missouri River at Sibley affecting Clay...Jackson and Ray Counties.
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
The Flood Warning continues for
The Missouri River at Glasgow.
* from Saturday afternoon to Sunday evening.
* At 8:30 AM Thursday the stage was 22.5 feet.
* Flood stage is 25.0 feet.
* Forecast...The river is expected to rise to near flood stage early
* At 25.0 feet...Farmland along the river floods.
Location FS Stage Day/Time Forecast
Glasgow 25 22.5 Thu 08 AM 25.0 Saturday afternoon
- See more at NOAA


MES Innovation Sdn Bhd
- Integrates and synchronises design changes across a single model and automatically update between Earthworks, Storm Drainage System, Sewerage System, Water Reticulation System & Road Design.
- Pipe Clash Checking between Water, Sewerage & Storm Drainage systems to resolve conflicts.
- Deliver consistent multi-disciplinary design calculation, drawings & construction documentation.
- Better visualization, more accurate design and enjoys better coordination.


Lake Gleneida, New York
Lake Gleneida Dam is on a tributary of W Branch Croton River in Putnam County, New York and is used for recreation purposes. At normal levels it has a surface area of 168 acres. It is owned by the City Of New York Dep Corona.
Lake Gleneida Dam is a gravity dam, of earthen construction. Its height is 4 feet with a length of 5 feet. Its capacity is 8042 acre feet. Normal storage is 8042 acre feet. It drains an area of 0.49 square miles.
Lakes, Dams, and Recreational Facilities Near Lake GleneidaWest Branch Reservoir Stillwater Pond Carmel Dam Carmel Auxiliary Dike Lake Carmel Lake Gilead Middle Branch Dam Boyds Corner Dam Croton Falls Reservoir Lake Casse Diverting Reservoir White Pond Wonder Lake Kirk Lake Lake Tibet Bog Brook Dam #2 Bog Brook Dam #1 Sodom Dam Croton Falls Dam Teakettle Spout Lake East Branch Reservoir Roaring Brook Dam Titicus Dam Lower(south)wiccopee Dam Upper(north) Wiccopee Dam Titicus Reservoir Boggs Pond Putnam Lake Canopus Lake Pelton Pond West Lake John Allen Pond Amawalk Reservoir Margerie Lake Upper Kohanza Lake East Lake Spruce Lake Pine Lake Duck Pond Dam A and B Lake Windwing
Bookmark this lake location.
Find other southwest Connecticut area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


The K8V series is Kawasaki’s new closed loop pump with excellent controllability and superior efficiency. It is used in hydrostatic transmissions ona variety of off-highway machinery.
- 71, 90 and 125cc displacements
- 400 bar rated pressure
- Electronic and hydraulic displacement control
- Through drive and tandem versions available
- World’s top-level pump efficiency and low noise
- Precise flow control by position feedback of swash plate tilting position.
- High reliability and Long life for high pressure spec.
- Charge pump, High/Low pressure relief valve, and Cut-off valve are standard option.
- Electric proportional control, Hydraulic pilot displacement control and Manual control are available.
|Max. speed (min-1)||3,300||3,050||2,850|
|Weight (approx.) (kg)||57||72||95|
|Wheel Loaders||Crushers||Combine Harvesters|
|Backhoe Loaders||Asphalt Pavers||Forestry|
|Track Loaders||Forklift Trucks|


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MTCC has today announced that the construction of bund wall for Dhuvaafaru’s land reclamation and shore project is well underway.
As part of the project, a land area of 22 hectares will be reclaimed and 423 metre long revetment will be installed as part of the shore protection.
According to MTCC, the scheme is set to be completed within 445 days and is worth MVR 143.1 million.
The project was contracted to MTCC in November 2020. MTCC mobilized machinery and its team at the project site during last month.


05 Aug Harbor dredging work for V. Rakeedhoo harbor development project has commenced.
Posted at 05:19h in News 0 Comments
Harbor dredging work for V. Rakeedhoo harbor development project has commenced today. Scope of works for the project include dredging operations of 5646cbm; the construction of a 164m quay wall; a 156m breakwater; and a 74m revetment.
Additionally, the installation of navigation lights, installation of harbour lights and construction of 429sqm of paved area will also be undertaken. The project worth MVR 18.5 million was contracted to us on 1st October 2019.
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Water Pump -12V 6lpm 35psi Pressure Pump
Ideal for 4wd's, camper trailers or Custom water pump system to suit your needs, at full capacity the pump can lift from a distance of up to 20m.
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Pump able to run dry without damage


Shiroro is a 600MW hydro power project. It is located on Kaduna river/basin in Niger, Nigeria. The project is currently active. It has been developed in multiple phases. Post completion of construction, the project got commissioned in 1989.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||600||600||–||Active||Niger, Nigeria|
CEC Africa (SL) and Power Holding Company of Nigeria are currently owning the project.
The hydro reservoir capacity is 7,000 million cubic meter. The gross head of the project is 97m. 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 300m. The penstock diameter is 6.3m. Shiroro underwent through rehabilitation & modernization during 1992-2002; 2016. The project generated 2,700 GWh of electricity.
The project got commissioned in 1989.
Voestalpine was selected as the turbine supplier for the hydro power project. The project consists of 4 units of Francis turbines, each with 150MW nameplate capacity.
Koncar – Elektroindustrija supplied 2 electric generators for the Shiroro (Shiroro – Active). The generator capacity is 176.5 MVA.
Koncar – Elektroindustrija supplied 2 electric generators for the Shiroro (Shiroro – Rehab). The generator capacity is 176.5 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.


Precautions for the operation of High Pressure Water Pump
The High Pressure Water Pump should be placed in a well-ventilated place as much as possible to run in order to facilitate rapid heat dissipation and reduce the temperature of the motor.
What is the function of the lubrication system of High Pressure Water Pump
The lubrication of the moving part of the High Pressure Water Pump is the forced circulation lubrication of the gear pump driven by the main shaft through the rotation of the gear.
How to avoid cavitation in RX High Temperature Low Cavitation Water Pump
RX High Temperature Low Cavitation Water Pump has relatively high requirements for pump body structure, pressure resistance, and stability.
2QS Steam Reciprocating Pump application features
The main features of 2QS Steam Reciprocating Pump are: ①High efficiency and wide efficient area. ②It can reach very high pressure 2QS Steam Reciprocating Pump, and the pressure change hardly affects the flow rate, so it can provide a constant flow rate.
Application range and configuration of JGGC High Pressure Water Pump
JGGC High Pressure Water Pump is a high-efficiency and high-pressure cleaning pump, energy-saving cleaning equipment, used in chemical plants, thermal power plants, sugar factories, paper mills and other industries to clean heat exchangers or reactors and various pipelines.


Pump performance application is developed to estimate the performance of any centrifugal pump operating at any viscous liquid other than it was originally designed for. It is very important operating phenomena and often centrifugal pump is required to operate at site conditions with varying fluid density and viscosity. Engineers then find challenging to decide whether the existing pump which was originally designed for completely different liquid would actually perform as per expectation and what discharge head would it develop when operate at varying conditions.
The application offers users to select the pump design profile provided by vendor based on water as design fluid or any other viscous fluid then re-design the pump performance curves for the operating fluid. The applications develop complete pump performance profile and graphs including pump head, discharge pressure, break horse power, water horse power, temperature rise in the pump impeller and system curve at which pump need to operate.
Pump performance curve for original vendor performance data, performance curve of original pump at new fluid, performance curve of modified pump design at new fluid and system curve are plotted. User are provided with multiple options to select the graph desired to plot and analyse. Results also displayed in tabulated form on separate tab.
Users are prompted about the limitations of the programs in the message bar on the screen.
An introductory demonstration of this software is available online at www.petrosof.com
Software is compatible to install and run on Windows 95-2000, Windows XP, Windows 7 and Windows 8.


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Maldives Transport and Contracting Company (MTCC) has completed the construction of the breakwater in Naalaafushi, Meemu Atoll.
The project was awarded by Ministry of National Planning and Infrastructure on August 27, 2018. The project scope includes the construction of a 113 metre rock boulder breakwater, a 103 metre rock boulder revetment and 3,162 cubic metres of harbour re-dredging.
The value of the project is USD 810,700.


ZD-28X24 sand dredging pump with capacity is 9000m3/h and delivery distance 1500m.
Single core design but has the same pressure undertaking featurs as old double core to
save production costing.
Shaft seal adpots the IHC same design Lip seal with over 12months life, stable using with easy
in shaft seal maintance.


The Urannah Water Scheme is a new bulk water entity for North Queensland and comprises of a 940,000 ML dam to be built at Urannah and approximately 200km of pipeline corridors to Moranbah.
The dam will be approximately 1.5 times the size of Sydney Harbour.
The capacity of Urannah Dam will be almost 52% of the Burdekin Falls Dam while taking up less than 20% of the land area. The dam will provide up to 103,000 ML of water per year.
The Urannah Water Scheme is strategically located to maximise reliability and yield for changing seasons and climate change.


« View county listFlood Warning
858 AM CDT THU MAY 28 2015
The Flood Warning continues for
The Trinity River Near Long Lake.
* At 0848 AM Thursday the stage was 46.66 feet.
* Flood stage is 35 feet.
* Major flooding is occurring and Major flooding is forecast.
* Forecast...The river will continue rising to a crest near 48 feet
by Saturday afternoon then begin falling but remain above flood
* At 48 feet, Major flooding of ranches, low areas, rural roads, and
camps along the river will occur. Major flooding of the coffield
prison farm and ranch lands is to be expected.
LAT...LON 3170 9593 3150 9580 3149 9562 3173 9580


- Flood Warning issued July 10 at 9:02PM CDT until July 12 at 11:00AM CDT by NWS
- Effective: 9:02 p.m. on Friday, July 10, 2015
- Expires: 11 a.m. on Sunday, July 12, 2015
...The Flood Warning continues for the following rivers in
Sac River near Caplinger Mills affecting Cedar County
.Excessive rain has caused the Sac River near Caplinger Mills
...For the Sac River near Caplinger Mills...
* At 8:45 PM Friday The stage was 16.4 feet.
* Flood stage is 16.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 16.5 feet by
around midnight. The river will fall below flood stage tomorrow
* Impact...At 16.0 feet...Minor Flooding occurs at the gage site. The
campground at Caplinger Mills floods.
FLOOD OBSERVED FORECAST 7 AM
LOCATION STAGE STAGE DAY TIME Sat Sun Mon
Sac River Basin
Caplinger Mills 16 16.4 Fri 09 PM 13.3 12.3 13.3
- See more at NOAA


Burdick Avenue Water Main Rehabilitation
A water main rehabilitation project on Burdick Avenue, between Mayhew and Nottingham, will take place from end February 2021 and to June 2021.
Construction notices detailing the project scope and impacts to residents were delivered in mid February. This project will be constructed by Oak Bay's own Public Works forces. The project includes 225 metres of replacement water main pipe, 23 new service connections to homes, and one new fire hydrant.


Project Title: Amelia Island WTP Booster Pump Modification Project
System: Nassau Amelia Utility
The Booster Pump Modification Project will replace the existing booster pump station located on the Omni property in Amelia Island. The new pump station will include a new 1-million-gallon ground storage tank, seven (7) split case pumps, a 500kW standby generator and associated electrical and controls equipment. The construction contractor, Sawcross, has completed the construction of the new ground storage tank, have installed underslab piping and electrical conduits at both the electrical and pump building’s, the electrical building’s base slab has been cast and the majority of the buried piping has been installed. The project is scheduled for completion in May 2023.


Guanyinyan Jinsha is a 3,000MW hydro power project. It is located on Jinsha river/basin in Yunnan, China. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in 2014.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||3,000||3,000||–||Active||Yunnan, China||Datang Guanyinyan Hydropower Development|
The project is developed and owned by Datang Guanyinyan Hydropower Development.
Guanyinyan Jinsha is a reservoir based project. The hydro reservoir capacity is 2,250 million cubic meter. The project generated 12,240 GWh of electricity. The project cost is $2,990.79m.
The project got commissioned in 2014.
The turbines for the hydro power project have been supplied by GE Renewable Energy and Harbin Electric Machinery.
The electric generators for the project were procured from GE Renewable Energy and Toshiba Energy Systems and Solutions.
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.


Government of India signs MoU with Chief Ministers of 6 Upper Yamuna basin states for construction of Lakhwar multi-purpose project in Uttarakhand
On August 28, the Government of India (GoI) has signed a Memorandum of Understanding (MoU) with Chief Ministers of 6 Upper Yamuna basin states for the construction of Lakhwar multi-purpose project in Uttarakhand. The states are Uttarakhand, Himachal Pradesh, Uttar Pradesh, Rajasthan, Haryana and Delhi. The Lakhwar project envisages construction of a 204m high concrete dam across river Yamuna near Lohari village in Dehradun district of Uttarakhand with a live storage capacity of 330.66 Million Cubic Metre (MCM). This storage will provide 78.83 MCM water for domestic, drinking and industrial use in the six basin states. It will also irrigate 33,780 hectares of land and generate 300MW of power. Out of the total project cost of Rs 3966.51 crore, the power component of Rs. 1388.28 crore will be borne totally by the Uttarakhand government. Uttarakhand will also get the benefit of total power generation once the project is complete. The project is to be executed by M/s Uttarakhand Jal Vidyut Nigam Limited (UJVL).
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DAB DIVERTRON 1200M Submersible Water Pressure Pump (0.75kW, 1hp, 220V)
This high-performance DAB DIVERTRON 1200M Submersible Water Pressure Pump with low power consumption and increased head pressure is submersible, very quiet and has a reliable operation.
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DAB DIVERTON performance curve
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Lane City Reservoir Project, Texas, United States of America
The Lane City Reservoir will be located in Wharton County in Texas, USA. The off-channel reservoir is being built to ease water demands on the Highland Lakes, and will serve cities, homes, and businesses in Central Texas.
The project will be owned and maintained by Lower Colorado River Authority (LCRA), a public utility serving the people of Texas.
Construction on the project began with a ground breaking ceremony held in December 2014. The reservoir is scheduled to be completed by July 2017. Upon completion, the reservoir will have the capacity to hold approximately 40,000 acre-foot (13 billion gallon) of water to meet the water needs of the drought-prone Texas region.
Lane City reservoir project details
The Eastside Reservoir is built in the saddle of two mountains and located in the Domenigoni, or Diamond valleys.
Lane City reservoir is the first significant water project being built by LCRA after approximately a decade. In August 2012, the LCRA board authorised the Lane City Reservoir project in Wharton County to increase approximately 100,000 acre-feet of water supply in the region in five years.
Wharton County was preferred for building the reservoir as the customers could benefit from the firm water supply in the lower Colorado River basin. The new reservoir is also expected to reduce dependency on water released from Lakes Travis and Buchanan.
Lane City reservoir design
The Lane City Reservoir will be situated approximately 220 river miles downstream from the Highland Lakes, collecting water downstream of Austin. The 40,000 acre-feet of the reservoir's water capacity is more than that of lakes Marble Falls, Austin, and Lady Bird combined.
The reservoir will have the capacity to be refilled multiple times every year enabling LCRA to add up to 90,000 acre-feet of firm water to the region's supply, thereby increasing the supply by about 15%.
LCRA will employ more than 100 people at the project site during the course of construction of the project and about 60% to 70% of the workers involved in the project are expected to come from the Wharton County area.
The Lane City reservoir is being built off the main channel of the Colorado River located near Lane City.
The major work on the project includes the construction of a 40,000 acre-foot, off-channel reservoir covering 1,100 acres with an approximately 40ft-high earthen boundary.
Other associated infrastructure to be built as part of the project includes a pump station with a maximum capacity of 561ft3/second, which will pump water from the Colorado River to the reservoir and further to customers. Associated pipelines to convey water to and from the reservoir will also be constructed as part of the project.
LCRA has also received approval to conduct refurbishment and upgradation works on the Lane City Pump Station. It will also construct a new river return structure as part of the project.
The reservoir project is estimated to consume 70,000t of cement, 19,000 cubic yards of concrete, 485,000t of gravel and sand, and three million gallons of fuel.
Financing for the new reservoir in Texas
The LCRA board approved $18m as part of the Phase 1a funding to enable the purchase of property and conduct initial design, engineering, and permitting for the construction of the off-channel reservoir in January 2013.
Additionally, $17m was approved by the board in March 2014 to fund the final design of the project, and also move an electric transmission line off the site under Phase 1b.
Texas Water Development Board (TWDB) sanctioned LCRA a $250m loan to finance the planning, acquisition, design, and construction of the Lane City Reservoir in September 2014.
Contractors and suppliers
CH2M HILL was appointed as the designer for the first phase of the reservoir project in April 2013. Barnard, a construction company based in Bozeman, was selected as the construction manager at Risk (CMAR) in September 2013.


Maldives Transport and Contracting Company (MTCC) delivered the second shipment of rock boulders to Sh. Milandhoo.
The rock boulders are required for the island’s shore protection project and have been delivered to the project site.
The contractor is currently executing the groyne profiling work which is at 37% completion.
The scope of the project involves the construction of a 954-meter revetment and a 115-meter groyne. The project cost is MVR34.6 million.


Lake Cataouatche Levee Construction
Owner: U.S. Army Corps of Engineers, New Orleans District
Contract Amount: $16,850,000
Location: Avondale, LA
Project Duration: 02/2007-04/2008
This project involved the construction of a levee which is a vital part of the Westbank hurricane protection system. The levee on Lake Cataouatche protects the citizens of Avondale, Louisiana, from the damaging effects of hurricane storm surges. The work involved the placement of approximately 512,400 cubic yards of granular material, 230,200 cubic yards of compacted clay material and 409,800 cubic yards of un-compacted clay material. All of the clay material for the project was mined from borrow sites on the project right of way using Manson draglines. The project also included relocating the drainage canal adjacent to the levee. The strengthened levee created by the project totals approximately three miles in length.


Construction Transmission line Between Dubair Khwar HPP and Dasu HPP TL
It is envisage that during project construction about 25 MW power will be required. To meet this requirement of power three alternatives were considered such as (i) installation of thermal power plants, (ii) construction of small hydropower project along small tributary near the project Area/site and (iii) construction of transmission line between Dubair Khwar Hydropower Project which would be in operation next year near Dasu Hydropower Project site.
After detailed analysis, it was concluded that construction of transmission line between Dubair and Dasu is the most economical and reliable, because the Dubair is already connected to national grid at Manshera. Therefore it is planned that before start of construction transmission line between Dubair and Dasu would be constructed. The budget required for this activity is given in approved PC-1 of the project.


Maldives Transport and Contracting Company (MTCC) has announced the completion of the K. Himmafushi Harbor Development (Phase 2).
Scope of works include harbor dredging operations of 19,895cbm, channel dredging operations of 9,900cbm, and construction of a 251m quay wall, a 15m breakwater, and a 311m revetment. MTCC also installed a concrete pavement, whereby the new harbour has a pavement of 1,443sqm compared to the 1200sqm pavement of the old harbour.
The project also involved the construction of a bridge (25m x 6m), construction of a jetty (63m x 4m), and the installation of harbor streetlights, navigation lights and mooring blocks.
According to MTCC, the value of the project is MVR 30.5 million.


Represa Hidrolectrica of Cachi is an artificial lake in central Costa Rica created by the Cachí Dam, an arch dam north of Tapantí National Park, to the east-southeast of Cartago in Cartago Province. The main town is Cachí, away from the east bank of the lake. Built in the 1970s, it was one of the first hydroelectric projects in Costa Rica. It has an installed capacity of 102 MW with three units of 34 MW capacity each.
The project became operational with the first unit commissioned in 1966, the second unit in 1967, and the third unit in 1978. The Reventazon River provides multiple benefits through the three dams built on it. Out of the three dams, Cachi Dam, not only provides power generation benefits but also controls floods, and recreational facilities in the Lake Cachi. The Rio Macho project on the upstream provides hydroelectric power and the downstream Birris power project also provides drinking wáter. The reservoir, in the Rio Reventazón, is an important supplier of electrical power to Costa Rica. It is operated by Instituto Costarricense de Electricidad (ICE)
Cachi contains the Cachí Dam in the northeastern part of the lake, near the village of Ujarras along the 225 road in the middle reaches of the Reventazon River in the Ujarras valley. The lake is created by the dam on the Reventazon River as it flows in from the northeast winding through the steep-sided valley. The river has a total drainage area of 3,000 square kilometres in an elevation range varying from 3,432 metres above mean sea level at its highest point to the lowest outflow point into the Atlantic Ocean; out of this, the reservoir created by the Cachi Dam intercepts the upper catchment area of 919 square kilometres. The annual precipitation in the entire river basin varies from 1,200 to 8,000 millimetres. In 80% of the total catchment area, the relief varies distinctly, with mountains which have slopes between 20 and 85 degrees. The average annual water inflow into the reservoir is at the rate of 104 cubic metres per second. The gross storage capacity of the reservoir is 51 million m3. The design flood discharge is 3,500 cubic metres/sec. The reservoir has a water spread of 324 hectares which stretches over a length of 6 kilometres with maximum water depth of 69 metres. Sixty percent of the reservoir’s catchment is forested, the remainder is agricultural land. Density currents are formed in the reservoir on account of a combination of temperature gradients and high sediment concentration.
The Cachi dam is a thin double-arch concrete structure built to a height of 80 metres above the deepest foundation. It is located in a narrow gorge and has a crest length of 70 metres, impounding 51 million cubic metres of inflows of the Reventazon River. During the 1991 Limon earthquake, the dam did not suffer any damage even though the epicentre was 86 kilometres away from the dam. However, there was a temporary suspension of power generation at the powerhouse located 12 kilometres away, due to dislocation of the transformers.
The project was planned, designed and executed by ICE, with support for the design of the arch dam, and for supervision of construction provided by Dr. Laginha Serafim, the Portuguese consultants. The construction of the arch dam was undertaken after extensive explorations of the geological features confirmed the suitability of the site. During construction, two diversion tunnels with gated controls, designed for a discharge of 600 cubic metres/sec were constructed to divert water away from the work site of the dam foundation.
The water from the reservoir is diverted through a 5,942-metre long pressure tunnel, a surge tank, a 566-metre long penstock including a 116-metre long pressure shaft and a power house. The power house has an installation of three units of 34 MW capacity. They are of vertical type Francis Turbine units which are designed to operate under heads varying between a maximum of 246 metres and a minimum of 221 metres. The first two units of the power plant were commissioned in 1966 and 1967, the third in 1978. The project was implemented with soft loan funding provided by the World Bank in two stages after due appraisal.
The output of the hydroelectric power plant at Cachí will increase from 100 megawatts to 160 MW. The expansion of the power plant will include a new 40 MW generator. An existing generator will also be upgraded. The work is scheduled to begin in 2012. The project should be finished by 2015, according to the Costa Rican Electricity Institute (ICE). Once expanded, the Cachí power plant will be able to supply the electricity needs of 330,000 people. The project is being funded by a $140 million loan from the Central American Bank for Economic Integration (CABEI).
Power evacuation from the switch yard of the power station was planned with step-up substation equipped with three-phase step-up transformers and evacuated through double circuit 132 kV transmission lines connecting Cachi with the Rio Macho power plant.
The annual sediment load into the Cachi reservoir estimated at 0.81 million tons, which amounts to 1% storage volume of the reservoir, had been assessed at the planning stage to be distributed at 54% as thalweg deposits, 21% getting deposited on the terraces, 18% flowing out through the spillway by gate operation and power intake through turbines and 7% trapped as bed load in the reservoir. This process is witnessed in two distinct parts of the reservoir – the upper part and the lower part – the upper part gets filled with sand and coarse sediments and the lower part, which is the deep river channel, gets deposited with fine sediment on its terraces which needs to be flushed by reservoir operation (a high concentration of sediments was noted near the power intake). However, for seven years after the project was commissioned, the reservoir was not desilted, which resulted in trapping of 82% of the sediment inflow into the reservoir and which moved towards the body of the dam and interfered with diversion of flow through the power intake in the body of the dam for power generation. The dam is provided with one scouring sluice at the bottom in the main river channel adjacent to the intake screen of the power intake that draws water for power generation. To keep the reservoir in a serviceable condition to derive planned power benefits, it became obligatory to drain the reservoir to its lowest level (though it caused an inevitable economic loss in power generation during the filling stage every year) and flush the deposited sediments downstream so that the intake does not get choked and allows sediment flow into the turbines. The first flushing operation was carried out in three well defined stages in 1973 and thereafter repeated every year till 1990. The downstream impact on the river regime as a result of the silt flushed from the reservoir was also studied when a peak concentration of 400 grams/litre were noted in the form of turbid water not only on the flood plains but also where the river merged with the Atlantic Sea. It was expected that these deposits would be flushed during the flood season. However, as a result of the silt flushing, some detrimental effect on the biota was noted by local people of the area in the downstream reaches of the river below the dam.
The effectiveness of the flushing operations has been studied over the years by hydrographic surveys of the reservoir using turbidimeters, side scan sonar, sub-bottom profiler, repeated echo sounding, sediment coring and X-ray techniques. The studies have indicated that the sluices provided in the dam to flush the sediment deposits in the reservoir are effective given the “duration and degree to which the reservoir is drawn down and on the discharge capacity of the sluices” and also the shape of the reservoir, which in the case of Cachi is in a narrow gorge. Studies indicated that the average diameter of the sediments deposited in the reservoir was of the order of 0.04 mm. It was also noted that on the terraces of the reservoir flushing was not very effective since they were covered with water hyacinths which had trapped the sediments. The old river channel also had indicated a deposit rate of about 2 metres, which, however, is now regularly flushed out by opening the scouring sluice.
The Cachí reservoir is now flushed of sediment deposits on an almost yearly basis. The field studies on the flushing operation carried out in 1996 indicated that about 250,000 tonnes were deposited within the reach between 10 kilometres and 30 kilometres (19 mi) downstream from the dam. Of these, 82% were channel-bed deposits while 18% were deposited on the river Banks.
The dam takes advantage of the head available in the river, which for some 65 kilometres creates white water suitable for rafting. Surrounded by mountains, the lake was created when the Instituto Costariccense de Electricidad built the dam across the river to supply San José with hydroelectric power.


What is another word for tinker's dam?
[ tˈɪŋkəz dˈam], [ tˈɪŋkəz dˈam], [ t_ˈɪ_ŋ_k_ə_z d_ˈa_m]
Table of Contents
Synonyms for Tinker's dam:
n.• darn (noun)
Other synonyms:• Other relevant words:
How to use "Tinker's dam" in context?
The tinker's dam project was started in 1965 by the late Dr. David Hackworth. The Tinker's Dam project was designed to divert water away from the San Francisco Bay, and to provide a potential water supply for the area. The project was completed in 1968, and has since served as a vital part of the Bay Area's water infrastructure. The Tinker's Dam project has helped to reduce water levels in the Bay, and has provided a valuable water supply to the area.
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Salini Impregilo S.p.A.
2016 - 2021
Description for Koysha – Gibe III HV Transmission line (Ethiopia)
The transmission line links the Koysha HPP site to the Gibe III HPP (in operation) and allows early supply of the site works for the construction of Koysha HPP.
- Overhead line (double circuit, 400kV, L=140km, 1200MVA per circuit)
- Koysha temporary substation (Site) (No.2 400/20/15kV 25MVA transformers, No.2 line bays)
- Gibe III substation extension with additional line bays (400kV, AIS type)
Koysha – Gibe III HV Transmission line (Ethiopia)
The transmission line links the Koysha HPP site...
Grand Ethiopian Renaissance Dam (Ethiopia)
The Grand Ethiopian Renaissance dam project is a...
Carpat Pumped Storage Plant (Romania)
Pumped storage plant with an installed power of 300 MW.
Arda Cascade (Bulgaria)
Hydropower cascade including the existing plants of Karjali (IP = 106 MW),...
Kariba Dam (Zambia-Zimbabwe)
This project foresees the rehabilitation for the...
Lefkara Storage Plant (Cyprus)
Storage works for Famagusta urban water supply.
Lower Diamphwe Multi-Purpose Project (Malawi)
This project includes the Lower Diamphwe Multipurpose Dam and associated...
Maccheronis Dam (Italy)
Reservoir capacity augmentation through the heightening of an existing...
Kalivac Hydropower (Albania)
Kalivac Hydropower Plant has 108 MW of installed power.


This project is to improve drainage along Cannon Road by piping, ditch grading and by construction a stormwater management pond or constructed wetlands to decrease flooding and improve stormwater quality. This is a VDOT Revenue Share project. Preparation of construction drawings and specifications 20% complete.
The project is on-hold pending acquisition of property and easements
For questions, please email Anna Drake, Project Engineer, or call at 757-890-3774.


PowerChina Huadong has contracted Entura to deliver hydropower advisory services for the 600-MW Karuma Hydropower Project. The project, located in northern Uganda, includes a 314-meter long diversion weir fitted with radial gates, six shafts and associated power tunnels leading to an underground power house containing six 100-MW Francis turbines and two 8.6-km long tailrace tunnels.
When completed, the Karuma Hydropower plant will be the largest power station in the country.
PowerChina Huadong is the lead designer for the project and sister-company, SinoHydro, the EPC contractor. Entura will assist PowerChina Huadong with managing a range of project stakeholders, undertaking design reviews, and advising on compliance with international standards.
The Karuma Hydropower Project is expected to be completed by the end of 2018.


DB series are suitable for pumping clean water. It is similar with IDB series in construction and use expect the direction of installation. They are particularly suitable for domestic applications such as Water supply from wells and pools, pressure boosting, garden sprinkling, washing booths.
Max Temperature Fluid up to +80℃
Max Pressure 10bar
Max Ambient Temperature up to 40℃


pipe on a blue sky background
Boiler room. Piping system. Boiler units.
Centrifugal pumps in the boiler room.
Boiler room. Aquaphor.
Modern boiler room on the wooden chips.
Modern boiler plant top view.
Modern boiler house. The hydraulic system supplying wood chips. Fuel supply.
Daugava river, plavinas. Hydroelectric power station in Latvia.
Excavator in work
Construction works. Concrete slab. Panels.
Pump room. Modern boiler room. Engine room.
Pump and valve system in the pump room.
Emergency pumping station.


Chapter 4—drainage section 4a-1—introduction to stormwater drainage system design page 2 of 2 a roadway stormwater drainage system may be in place for several. Yasscombrthesis on drainage design thesis on drainage design (essays) about example of thesis on drainage systemwater drainage systems essay. Drainage design proceedings of the masc thesis, university of toronto, toronto, ontario, 1992 stormwater management planning and design, 1997. Porous asphalt pavement designs: proactive design for cold climate use by lori kathryn schaus a thesis designed to allow fluid to flow along the surface and drain.
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10 Nov Work on design and build of Th. Guraidhoo Harbor is underway
Posted at 04:50h in News 0 Comments
Work on design and build of Th. Guraidhoo Harbor is underway, with overall 13% project progress. Dredging works and cast in-situ wall concrete works for the project is currently ongoing, with 28% and 9% completion, respectively.
Project works consists of; dredging and excavation operations of 16,533cbm; construction of a 208m breakwater; a 22m revetment; a 370m quay wall and 370sqm of paved area. The estimated value of the project is MVR 46.01 million. The project was awarded on 01st October 2019.
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The Bangladesh Water Development Board (BWDB) control room said Teesta water was flowing 15cm above the danger level on Monday
Hundreds of houses on the river islands in Rangpurs Gangachara upazila have been inundated as water level rose in the Teesta River after heavy rainfall in the upstream area.
Erosion of the river also destroyed at least 20 houses and pieces of croplands in the last 24 hours in the district.
The Bangladesh Water Development Board (BWDB) control room said Teesta water was flowing 15cm above the danger level on Monday.
But the water level started to come down since Tuesday night and the river was flowing 12cm below the danger level at Gangachara point on Wednesday.
Meanwhile, flooding forced many families to leave their houses and take shelter elsewhere, said Lakkhitari Union Parishad Chairman Abdullah Al Hadi.
More people left their houses in panic, he said, adding that the BWDB has not taken any steps to prevent the river erosion.
Gangachara Upazila Nirbahi Officer Enamul Kabir said the situation has returned to normalcy as the water level in the Teesta River came down.
BWDB Engineer Saheb Ali said the Teesta River was now flowing below the danger level. We are taking measures to prevent river erosion in Shankardah area.


This project consisted of providing flood mitigation measures for approximately 4,600 LF of open channel riverine enhancement and one bridge crossing to convey 21,400 cfs through the Muddy River in Overton, Nevada. The project included preparation of design improvement plans, detailed hydraulic analyses using HEC-RAS, and structural design and analyses on the bridge crossing and other project appurtenances. Abutments are founded on multiple drilled shafts, while the three-column pier utilizes a single large diameter shaft at each pier column. Facilities include a gabion transition structure, approximately 1,500 lf of rectangular and trapezoidal concrete channel with a 150-ft bottom width and 14-feet of depth, approximately 3,100 lf of trapezoidal riprap channel with 200-400-ft bottom width and 10-12-ft of depth. The design will preserve natural meandering of the Muddy River as required by the Army Corps of Engineers 404 permit. GCW is also responsible for utility coordination, structural design services, surveying and right-of-way, and working with geotechnical subconsultants and support groups.


The new Greyline DLT 2.0 can measure both differential level at a bar screen, plus open-channel flow through a flume. It works with two noncontacting ultrasonic sensors. It includes relays for bar screen rake and level control as well as three 4-20mA outputs (upstream level, differential level, downstream level or flow). The large backlit LCD display shows level, differential level, flow and total flow. Intrinsically safe sensors and data logger are optional.


Lubrication pump UCD
Lubrication pump UCD is supplied with metal reservoir volumes of 6, 8, 12, 30 or 63 litres with or without lubricant level signalling, and nominal lubricant dose 40 cm3/min. Working units are equipped with safety valve with output pressure adjustment and manometer. Standard electric motors are 230/400V AC, 500V AC. For other voltages consult supplier. There is a hydraulic two‑line change-over valve with or without electric signalling placed at the lubrication pump body. Two manometers are placed in the change-over valve branch for visual checking of set pressure, working pressure is adjustable in the range from 100 to 280 bar. Lubrication pumps UCD are used for permanent regular lubrication of stationary machines in lubrication circuits with smaller range. The pumps are suitable for sever working conditions.


One-way drain valve main parameter
Pressure rating: 2000 ~ 15000psi
Nominal diameter: 2-1/16 ~ 7-1/16 ""
Operating temperature: K ~ V
Specification: PSL level 1 ~ 4
The level of performance: PR 1 ~ 2
Material level: AA ~ FF
The name DFF single flow valve
Standard level PSL1-3
Material grade AA ~ FF
The level of performance of PR1-2
The temperature level P U
One-way drain valve product introduction
Unidirectional drainage valve check valve. It is to rely on mediapressure to seal between the valve core and valve, medium pressureis bigger, better sealing performance. The valve cavity at any time canwithstand the pressure line. This valve for the alloy steel forging and become, have strong mechanical properties, can bear high pressure,has safe and reliable performance.
The valve cover and the valve body connected with bolts, the sealingfor the valve cover sealing ring and the inner wall of the valve body,sealing performance and reliable. The assembly clearance it makesthe valve cover and the valve body is very small (design 0), thereby reducing the erosion corrosion medium on the bolt and the screw and reduce the bolt load.
Surface of hard surfacing alloy spool and valve seal, which have good wear resistance and corrosion resistance, the valve core materialadopts anti sulfur steel, other parts of the hardness of the way, so thevalve can be used in the environment with H2S.


Contract Awarded for Bandon Flood Relief Scheme
Minister Seán Canney, TD, Minister of State with special responsibility for the Office of Public Works and Flood Relief, has announced the appointment of Wills Bros. Ltd as civil engineering contractor for the construction of the Bandon Flood Relief scheme.
“I am delighted to announce the appointment of a civil engineering contractor for the construction of the Bandon Flood Relief Scheme,” Minister Canney said.
“Bandon is one of a number of areas affected by flooding in Co. Cork in recent years including Skibbereen, Blackpool, Cork City and other locations.”
The scheme flood alleviation works, with a contract value of €11m, will include: dredging of approximately 3.6 kilometers of the Bandon River, mainly downstream of the town, repair works and modifications to the Bandon Weir, replacement of the existing pedestrian bridge with a new 3-span pedestrian bridge, underpinning of Bandon Bridge, construction of new flood defense walls and improvement to others, construction of new earthen flood embankments, construction of new culverts, construction of new fish passes and associated drainage works and services diversions.
The scheme has been designed will benefit over 390 properties, of which 177 are residential properties, following significant consultation with all relevant stakeholders.


January 12, 2023
A valve for the new lower intake hangs above the work area below Glen Canyon Dam Bridge as crews prepare to put the valve into place. (Photo/Bureau of Reclamation)
Stories this photo appears in:
PAGE, Ariz. — Fulfilling their agreement to take care of the residents of Page, Bureau of Reclamation crews at Glen Canyon Dam recently completed a new water intake connection to accommodate the low water levels at Lake Powell.
By Navajo-Hopi Observer January 17, 2023


Forged Steel Check Valve
ZECO specializes in producing forged steel check valves for nearly 30 years. The forged steel check valves include forged steel swing check valves and forged steel lift check valves. Forged steel check valve is a body automatic control valve, mainly rely on the flow of the media to automatically control the valve disc open or close, to prevent the reverse flow of the media in the pipeline. Forged steel swing check valve disc and swing arm connected together, when the medium from the valve inlet flow will push the disc to make the valve in the open state, and when the medium countercurrent, the disc due to gravity and the role of the medium thrust valve in the closed state, the greater the pressure of the medium countercurrent, the better the sealing effect.
Forged Steel Check Valve for Sale
Introduction of Forged Steel Check Valve
The valve disc opening and closing of the forged steel lifting check valve is controlled by the guide on the valve cover to ensure that the sealing surface of the valve seat does not deviate from the sealing surface of the valve seat and affect the sealing.When the medium in the pipeline from the outlet reverse countercurrent back, the pressure of the medium will push the valve disc to close slowly so that the valve disc and valve seat sealing surface closely cooperate with sealing, the greater the pressure of the pipeline, the better the sealing effect. Because the forged steel check valve serves as a counterflow barrier for the medium, ZECO’s research and development team focuses on the two most important sealing surfaces of the check valve, and devotes itself to the production of each hard seal check valve to achieve the low-pressure non-leakage condition, which is more convenient for users to use in the working conditions.


Location and Description
Acton Lake Dam is located in Hueston Woods State Park in Butler County, just north of the city of Oxford. The dam was originally constructed in 1956 to provide a recreational lake for the park.
The facility includes an earth fill embankment, side channel concrete spillway, concrete lined outlet channel, concrete lake drain structure and drainage network along the toe of the dam. The earth fill portion of the dam is approximately 60 feet high and 1,100 feet long. The side channel spillway is a 330-foot long ogee spillway located on the east dam abutment. The concrete lake drain structure is located in the lake approximately 80 feet from the upstream shoreline and near the side channel spillway. The lake drain consists of a concrete tower extending from the lake bottom above normal pool and includes two 6-foot by 6-foot sluice gates.
Acton Lake Dam impounds approximately 560 surface acres of water at normal pool and has a contributing drainage area of 99 square miles. The lake is considered a premier inland fishery and recreational boating area. As a Class I high-hazard potential structure, a sudden failure of Acton Lake Dam likely would result in the structural collapse of at least one residence or one commercial or industrial business and probable loss of human life. (Hazard ratings refer to the consequences of dam failure, not the dam's condition.)
Click here for more about the Dam Risk Reduction Program.
Acton Lake Dam has displayed visual signs of underseepage since construction in 1956. Additionally, a structural analysis of the existing concrete spillway weir, floor, adjacent walls and the concrete lake drain tower, has been performed to evaluate compliance with current design codes. The result of the structural analysis indicated that most of the structures at the site are deficient. Also, the dam does not meet current state dam safety standards.
Several options were considered for rehabilitation of the dam. The lake's quality as a fishery and vast recreational uses led to constraints associated with lake levels during construction. The selected risk reduction alternative allows construction to be performed with minimal impacts to lake levels. This alternative involves replacement of the lake drain tower and several concrete walls, rehabilitation of the spillway weir and outlet channel, and construction of a new toe drainage network and berm.
Long Term Plan
Routine inspections and maintenance of the dam will continue. An emergency action plan will be revised and shared with local emergency management officials once it is completed.
Additional park information may be found on the Hueston Woods State Park web page.


Xinjiang Manasi is a 50MW hydro power project. It is located on Manasi river/basin in Xinjiang Uyghur Autonomous Region, 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 commenced construction in 2005. Buy the profile here.
The project is currently owned by Xinjiang Tianfu Thermoelectric.
Xinjiang Manasi is a run-of-river project. The project generated 187.11 GWh of electricity.
The project commenced construction in 2005.
Power purchase agreement
The power generated from the project is sold to Northwest China Grid under a power purchase agreement.
The turbines for the hydro power project have been supplied by Fujian Nanping Nandian Equipment Manufacture and Kunming Electric Machine.
The electric generators for the project were procured from Fujian Nanping Nandian Equipment Manufacture and Kunming Electric Machine.
For more details on Xinjiang Manasi, buy the profile here.


Flow in a triangular open channel with hydraulic jump
AbstractMathematical model for dredging a triangular open channel with hydraulic jump is developed using the method of successive approximation. Applying the model to a numerical example new parameters of the new (excavated) channel are determined and compared with those of the original channel. Another feature of the work is the application of our model in Bernoulli’s equation which leads to the energy dissipated in the jump for both the original and new channel. Based on this, other parameters like jump efficiency, relative energy loss, power loss and height of the jump are also determined in the two channels and compared.
Journal of the Nigerian Association of Mathematical Physics, Volume 15 (November, 2009), pp 123 – 132


Process-based riverscape restoration
North fork Sprague River, Oregon
Process-Based Riverscape Assessment & Design
Working with the Yakama Nation, project includes assessment and design of multiple LTPBR projects through BPA's Habitat Improvement Program. In 2021, four basis of design reports were completed (Trout, Tepee, Brush, and Swale creeks) along with strategies for potential restoration projects on Swamp Creek and Blockhouse Creek in the Klickitat River watershed and Mill Creek in the White Salmon River watershed. In 2022, four additional basis of design reports will be completed for work on Diamond Fork, the upper Klickitat River, Tepee Creek, and Trout Creek.
PROJECT Videos & Pictures
Existing capacity to support beaver dams within the Klickitat River subbasin and near the lower Tepee Creek project area. The surrounding area is shown in order to provide context regarding the future likelihood that beaver move into the project area based on the capacity of nearby streams.


06 December 2019 - NW1514
Moteka, Mr PG to ask the Minister of Human Settlements, Water and Sanitation
On what date will the De Hoop Dam in Sekhukhune become operational and (b) what are the reasons for the delay?
(a) &(b) Honourable Member, the construction of the De Hoop Dam is unfolding in various phases. Phase 2A of the De Hoop Dam in Sekhukhune is complete and the dam has been operational since October 2018.
However, completion of the remaining phases is critical for the dam to be utilised optimally. The remaining phases are as indicated below:
- Phase 2B – Pipeline Flag Boshielo Dam to Mokopane, design complete, construction to commence once funding is available.
- Phase 2C – 40 km long pipeline from De Hoop Dam to Steelpoort, construction completed in 2017. Phase 2C interlinks to Phase 2A and the remaining phases 2D, 2E and 2F of the scheme.
- Phase 2D – New pipeline from Steelpoort to Mooihoek and Balancing Dam, pipeline design completed and final work packages for tender purposes was submitted to DWS and are under review. The project is ready to commence with the construction stage, however, the confirmation of funding for the entire project is required. In addition, delays in the finalisation of the acquisition of land may adversely impact on progress with the construction programme due to the required relocations/ resettlements.
- Phase 2E – 10 km gravity pipeline from Mooihoek to Havercroft Junction, tender design stage. This phase is currently on hold due to no funding being allocated.
- Phase 2F – 46 km gravity pipeline from Havercroft Junction to the existing Olifantspoort WTW, tender design stage. This phase is currently on hold due to no funding being allocated.


The Saudi Water Partnership Company (SWPC) has signed the project agreements of the Juranah Independent Strategic Water Reservoir (ISWR) Project in Makkah City, Saudi Arabia.
The successful consortium for the project comprises Vision International Investment Company, Gulf Investment Corporation G.S.C, and TAQA. The strategic storage capacity is set at 2,000,000 m3, while the operational tank capacity will be 500,000 m3. The Juranah strategic storage initiative aims to improve water supply chains, serving both the residents and visitors of Makkah City, as well as the Hajj & Umrah pilgrims.
The project will follow the Build, Own, Operate, and Transfer (BOOT) system, with commercial operations expected to commence in Q2 of 2027.


In 2006, the Fiji Government commissioned Hall to undertake dredging works in the Navua River near Suva in Fiji.
The project involved dredging 500,000m3 of material and pumping it to a disposal location approximately 2km away.
The project team had to contend with fast flowing river currents, sand infill and large clumps of bamboo, which would have posed significant problems for small cutter suction dredges. Using cutter suction dredge Scorpio, Hall was able to successfully complete the works in just seven weeks.
The project enabled increased flow capacity within the river, improved access and assisted with minimising the impact of flooding on surrounding communities during wet weather events.
- Location Navua, Fiji
- Client Fijian Government
- Duration July 2006-October 2006


The Nam Ou River Cascade Hydropower Project developed by the Power Construction Corporation of China (PowerChina) has generated over 10 billion kilowatt-hours (kWh) of electricity.
A project manager said at an event on Wednesday that as of Tuesday the total electricity generated by the seven cascade hydropower stations along the Mekong tributary has exceeded 10 billion kWh. The event was held in PowerChina’s Nam Ou River cascade hydropower operation and maintenance center in Luang Prabang, some 220 km north of the Lao capital Vientiane. Li Zhigong, Chinese consul general in Luang Prabang, said that the Nam Ou Cascade Hydropower Project is a successful case of PowerChina, giving full play to its own advantages and participating in the cause of the Belt and Road Initiative with high quality.
The Nam Ou project includes seven cascade hydropower plants along the Nam Ou river which is the largest tributary of the Mekong river in Laos. The project has a total installed capacity of 1.272 million kilowatts and an average annual generating capacity of 5 billion kilowatt-hours. On the same day, the Association of the Chinese Power Generation Enterprises in Laos was unveiled at the operation and maintenance center in Luang Prabang. The association is composed of 13 Chinese power generation enterprises, which have invested in the construction of 18 hydropower stations in Laos, with a total installed capacity of 2,256 MW in operation, accounting for 49.7 percent of the installed capacity of the Lao national power grid.
Source: This news is originally published by globaltimes


On March19, Huaneng Nuozhadu Hydropower Station, a national key project and also the largest hydropower station in Yunnan province, was approved by the National Development and Reform Commission. With total planned installed capacity of 5,850MW and total investment of RMB 45 billion, the Nuozhadu Hydropower Station is the project with largest engineering scale and storage capacity in the Lancang River Basin, the largest rock-fill dam power station in Asia, and the third highest core wall rock-fill dam power station in the world.
Nuozhadu Hydropower Station is a key project in Power Transmission from West China to the East China, and from Yunnan province to Neighboring Regions, and is an important project for Yunnan province in the construction of a national hydropower base. The power station is located in Pu’er city in the lower reaches of Lancang River. The normal reservoir storage level of Nuozhadu Hydropower Station is 812m, the maximum height of the core wall rock-fill dam is 261.5m, the total storage capacity of the reservoir is 22.741 billion m3, and the regulating storage capacity of the reservoir is 11.335 billion m3. The power station has nine generating units (9×650MW), guaranteed output of 2400MW, and average annual electricity generation of 23912GWh.
In addition to enormous economic benefits, the power station also gives full expression to energy conservation and emissions reduction. When all generating units are put into operation, the project can save over 9.56 million tons of standard coal and reduce CO2 emissions by 18.77 million tons every year, compared with coal-fired power projects, and will also greatly reduce discharge of wastewater, waste residue and floating dusts, etc.Nuozhadu Hydropower Station is a world-class huge project. It faces high technical indexes and complicated geological conditions. Many technical indexes including dam, spillway and underground powerhouse, etc. are among the top in the world. The height of the gravel clay core rock-fill dam is No.1 in Asia and No.3 in the world. The underground powerhouse is one of the largest one of the kind in China. The open spillway has the largest scale in Asia, and has the largest flood discharge power and flow velocity in the world.


How is power and oxygen input controlled?
There are two methods of controlling power and therefore oxygen input—impeller submergence and impeller speed.
Submergence: The water level can be lowered relative to the impeller by an effluent weir to reduce the “bite” on the impeller blades. The difference between the high water level (submergence) and low water level (submergence) is generally less than one foot (30 cm). In the past, this was the only method for controlling aerator HP output and oxygen delivery. Today, adjusting impeller submergence is performed with an electrically actuated weir to improve aerator transfer efficiency using our energy optimizer package, which is available with the Oculus control system.


This project includes retrofitting five (5) pumping stations along the Algiers Canal to provide frontal hurricane protection that ties into adjacent levees along the Algiers Canal. Pile supported T-walls were constructed on the flood side of each pumping station, and the discharge tubes pass through or over the T-wall. The project also includes all mechanical and electrical upgrades necessary to the discharge systems. The five (5) pumping stations include the Belle Chase Pumping Station, the Plaquemines Pumping Station, the Planters Pumping Station, Sewerage and Water Board Pumping Station No. 11 and Sewerage and Water Board Pumping Station No. 13. DEI is a Joint Venture partner on this project.
Work on this project has included preparation of the feature Draft Individual Environmental Report, Engineer Alternative Measures (EAM) and preparation of contract plans and specifications. The current phase of this project involves construction of all frontal protection work to include HSDRS design features.
Design Engineering, Inc.’s responsibility in this project included structural and civil design for five pumping stations. Specific tasks included:
- T-wall design including foundation and structural design for 986 LF of T-walls (470 LF at No. 11 and 516 LF at No. 13, 660 LF at Planters, 290 LF at Belle Chasse and 432 LF at Plaquemines),
- Site drainage design,
- Drainage design between existing pump station and proposed T-wall,
- Design of sluice gates,
- Demolition plans,
- Preliminary design for Temporary Retaining Structures for cost estimating and constructability purposes, and
- Preparation of contract specifications for the projects.