Check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent the medium from flowing back. It is also called check valve, one-way valve, reverse flow valve, and back pressure valve. Check valve is a kind of automatic valve, its main function is to prevent the back flow of the medium, prevent the pump and drive motor from reversing, as well as the release of the container medium.
Check Valve: According to the structure, it can be divided into three types: lift check valve, swing check valve and butterfly check valve. Lift check valves can be divided into two types: vertical and straight-through. Swing check valves are divided into three types: single valve, double valve and multi valve. The butterfly check valve is a butterfly double valve, a butterfly single valve, and the above types of check valves can be divided into four types in connection form: threaded connection, flange connection, welding and wafer connection.
Check valve model compilation method: such as H41H-16C in order
Additional number of check valve: HH micro-resistance slow-closing check valve, BH heat preservation check valve, HQ rolling ball check valve;
⑴Check valve type: H stands for check valve;
⑵ Check valve connection: 4 flanges, 6 welding, 7 pair clamps;
⑶ Check valve form: 1 lift type, 2 vertical type, 4 swing type, 6 double flap type, 8 butterfly type;
⑷Check valve sealing: B babbitt alloy, F fluoroplastic, H stainless steel, M Monel alloy, X rubber, Y cemented carbide, W direct processing;
⑸ Check valve pressure: 16 pressure 16 kg, PN1.6-25mpa, pound class 150LB-2500LB, Japanese class 5K-63K;
⑹ Check valve material: Q ductile iron, C carbon steel, P-304, R-316, A titanium alloy, I chromium molybdenum steel;
Common models of check valves:
Wafer lift check valve: H71X, H71H;
Wafer butterfly double flap check valve: H76X, H76H;
Wafer disc check valve: H74H, H74I, H74M;
Silent check valve: H42H, H42W;
Micro resistance slow closing check valve: HH44H, HH46H, HH49H;
Rubber disc check valve: HC44X;
Muffler check valve: HC41H, HC41X, HC41T;
Lift check valve: H41H, H41W;
Swing check valve: H44H, H44W;
Slide ball check valve: HQ41X;
Welding check valve: H61Y, H62Y, H64Y.


- Flood Warning issued October 26 at 7:55PM CDT until October 28 at 7:00AM CDT by NWS
- Effective: 7:55 p.m. on Friday, Oct. 26, 2018
- Expires: 7 a.m. on Sunday, Oct. 28, 2018
...The Flood Warning continues for the following rivers in Kansas...
Missouri River at St Joseph affecting Doniphan...Andrew and
The Flood Warning continues for
The Missouri River at St Joseph.
* until Sunday morning.
* At 7:30 PM Friday the stage was 17.1 feet.
* Flood stage is 17.0 feet.
* Forecast...The river is nearly steady but should slowly fall to below flood stage Saturday.
* At 17.0 feet...Lowland flooding upstream and downstream from St.
Location FS Stage Day/Time Forecast
St Joseph 17 17.1 Fri 07 PM 17.0 early Saturday morning
- See more at NOAA


|Model||Working pressure||9mm||16mm||21mm||Max. Cutting Force||Weight|
|TUF 524||700 BAR||450 HB, 1500 N/mm²||250 HB, 850 N/mm²||200 HB, 700 N/mm²||140 KN||7.4 Kg|
The TUF 524 is designed for cutting flat and hard materials.
The Hydraulic side cutter equipped with built-in relief valve, which allows tool to be connected to a pump with a higher working pressure than the maximum working pressure of the tool. We recommend to use the air/hydraulic pump model TUF 1375 with this tool.


Shandong Rizhao Port Lanshan Port Area deep water channel dredging project started
China Communications Construction announced that with the construction of the large trailing suction dredger "New Sea Tiger 4", the channel dredging project of the second phase of the deep water channel project in Lanshan Port District, Rizhao Port, Shandong Province（undertaken by China Communications Construction and Shanghai Aviation Administration）was officially started. After the completion of the project, it will increase the navigation guarantee rate and berthing capacity of large ships in Rizhao Port, which is of great significance for ensuring the safety of Rizhao Port's navigable waters and promoting the economic and social development of Rizhao.
The project is located in the outer waters of the Lanshan port area of Rizhao Port. It mainly dredges the two-way channel with a total length of 43 kilometers, a navigable width of 390 meters, and a control water depth of 22.5 meters. The dredging project volume is 4.88 million cubic meters, which can meet the one-way navigation requirements of 300,000-ton oil tankers and 300,000-ton bulk carriers.It will use dredger(also including silt curtains for silt and pollution controlling) to finish this project.
The channel is divided into two sections from the harbor basin to the sea, namely the AD section and the DE section. The AD section of the channel is connected to the crude oil terminal basin, and the direction of the channel is basically the same as the first phase of the deep-water channel. The length of the AD section is 26.833 kilometers, and the designed bottom elevation is -22.40 meters. Point D is the turning point of the channel axis, the DE section is the open sea section, the length of the DE section is 16.00 kilometers, and the design bottom elevation is -22.5 meters.


Karakuz Hydropower Station is a 76MW hydro power project. It is located on Korkut river/basin in Adana, 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 2013 and subsequently entered into commercial operation in 2015. Buy the profile here.
The project was developed by Power China Huadong Engineering and is currently owned by Altek Alarko Elektrik Santrallari Tesis, Isletme ve Tic.
The net head of the project is 530m. The penstock length is 1,580m. The penstock diameter is 2m. The project generated 276 GWh of electricity. The project cost is $217.823m.
The hydro power project consists of 2 turbines, each with 40.2MW nameplate capacity.
The project has 2 electric generators installed at the site. The generator capacity is 42.2 MVA.
The project construction commenced in 2013 and subsequently entered into commercial operation in 2015.
For more details on Karakuz Hydropower Station, buy the profile here.
About Power China Huadong Engineering
Power China Huadong Engineering Corp Ltd (Power China Huadong) is a construction company that offers engineering services. The company’s services comprise engineering, procurement and construction; contracting and investment, planning and development, survey and design and consulting services. It offers social and economic development such as ecological environment construction, water environment comprehensive management, dam and engineering safety, complete equipment supply, regional development planning, and EPC project contracting services. Power China Huadong undertakes broad range of projects including hydropower and water conservancy, power, architectural, environmental, metro, dams and infrastructure. The company operates in Vietnam, Turkey, Nigeria, Pakistan, Ethiopia, Mexico, Indonesia, the UAE and Kenya. Power China Huadong is headquartered in Hangzhou, China.


- Flood Warning issued June 30 at 11:07AM CDT until July 07 at 11:30PM CDT by NWS
- Effective: 11:07 a.m. on Tuesday, June 30, 2015
- Expires: 11:30 p.m. on Tuesday, July 7, 2015
...The flood warning continues for the following rivers in
Mississippi River at Canton LD20 affecting Adams and Lewis Counties
Mississippi River at Quincy affecting Adams and Marion Counties
Mississippi River at Quincy LD21 affecting Adams and Marion Counties
Mississippi River at Hannibal affecting Pike and Marion Counties
Mississippi River at Saverton LD22 affecting Pike and Ralls Counties
Mississippi River at Louisiana affecting Pike County
Mississippi River at Clarksville LD24 affecting Calhoun and Pike
Mississippi River at Winfield LD25 affecting Calhoun and Lincoln
Mississippi River at St. Louis affecting St. Clair...St. Louis and
St. Louis City Counties
Mississippi River at Grafton affecting Jersey and St. Charles
Mississippi River at Alton LD26 affecting Madison and St. Charles
Mississippi River at Chester affecting Ste. Genevieve...Jackson...
Perry and Randolph Counties
The Flood Warning continues for
the Mississippi River at St. Louis
* until Tuesday July 07.
* At 10:30 AM Tuesday the stage was 38.3 feet.
* Flood stage is 30.0 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Forecast: The river will continue to fall to below flood stage by
Monday before midnight.
* Impact: At 38.5 feet...Nellie Avenue, south of Lemay Ferry Road
along River des Peres, begins flooding.
* Impact: At 38.0 feet...The U.S. Coast Guard will consider closing
the St. Louis harbor to navigation above this level. Four more
floodgates are closed at Prairie Avenue, Madison Avenue, Mullanphy
Street, and the railroad bed near Lesparance Street.
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 07/01 07/02 07/03 07/04 07/05
St. Louis 30.0 38.31 37.9 36.9 35.4 34.0 32.5
- See more at NOAA


Reg No.: 16 25 25
National ID: 10 10 20 51 467
Economy Code: 41 11 51 57 85 71
|Physical Progress||The project constrauction has been completed.|
Sangtuda 2 dam and hydroelectric power plant is located in south west of Tajikistan, about 180 kilometers away from south east of Dushanbe, capital of Tajikistan. This dam and it power plant are built to supply a part of energy of central Asia united electricity system.
This project is includes the construction of temporary diversion system, dam body, spillway, intake and the building of sangtuda 2 power plant.


|Net Weight (lbs)||25.00|
- F model equipped with NPT ports and industry standard flanged connections
- Provides higher pressure and greater volume for applications with large tanks and longer spray booms.
- The 206 motor requires 7 GPM (26.5 LPM) maximum hydraulic fluid input and fits virtually all tractor hydraulic systems.
- Pressure Compensating Closed Center Systems
- Load Sensing Closed Center Systems
- Open Center Systems up to 16 GPM (60.6 LPM) using internal needle valve bypass


Based on catchment conditions and the rainfall forecast, significant run-off into our dams over the next week is unlikely, so we have no plans in the next seven days to operate the gates at Wivenhoe Dam, Somerset Dam or North Pine Dam.
As always, we’re keeping a close eye on the weather and will update you if anything changes.
Geotechnical investigations at Somerset Dam will continue as part of the dam improvement project.
The water level of most of our dams remains high, with the combined storage level of our 12 key dams at 83.9% today. The floodwater storage compartments at Wivenhoe Dam and Somerset Dam are fully available.
Lake Macdonald and Wappa Dam are the un-gated dams that are currently spilling.
For more information about the Somerset Dam Improvement Project, visit www.seqwater.com.au/damimprovement/somerset.
And don’t forget to sign up for our free dam release notification service at www.seqwater.com.au/dam-release-information-service.


Electric power unit has 110 volt single phase power
Sturdy, welded channel iron frame for duribility
Lever control ram advance for easy operation
Quite, low pressure hydraulic components
Double acting cylinder allows for convenient positioning of ram
One hand ram positioning with 4-way valve hydraulic control
Capacity 10 tons
Width between uprights 20"
Width between table channels 4"
Maximum ram to table 40"
Ram travel 10"
Ram speed 20 ipm
Mian motor 1 HP
Dimensions (L x W x H) 29-3/4" x 24" x 80"
Weight 300 lbs.
Frame, Two (2) combination table plate/V blocks, Motor
Pressure gauge, Safety relief valve
Get email updates for Dake presses


Souris reservoir target levels reached
January 22, 2014
The amount of water being released from two reservoirs in southern Saskatchewan has been cut as the level of water held in the reservoirs reached the goal requirements of the International Agreement......
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Wind River Diversion Dam
Region: Missouri Basin and Arkansas-Rio Grande-Texas Gulf Regions
Select a Project Ainsworth Unit Almena Unit Angostura Division Armel Unit Bostwick Division Boysen Unit Canyon Ferry Unit Cedar Bluff Unit Crow Creek Pump Unit Dickinson Unit East Bench Unit Fort Clark Unit Frenchman-Cambridge Division Garrison Diversion Unit Glen Elder Unit Glendo Unit Hanover-Bluff Unit Heart Butte Unit Helena Valley Unit James Diversion Jamestown Dam and Reservoir Keyhole Unit Kirwin Unit Kortes Unit Lower Marias Unit North Loup Division Owl Creek Unit Pick Sloan Missouri Basin Program Rapid Valley Unit Riverton Unit Savage Unit Shadehill Unit Webster Unit Yellowtail Unit Select a Dam Bartley Diversion Dam Bonny Dam Bull Lake Dam Cambridge Diversion Dam Culbertson Diversion Dam Davis Creek Dam Enders Dam Kent Diversion Dam Lovewell Dam Medicine Creek Dam Merritt Dam Red Willow Creek Diversion Dam Red Willow Dam Shadehill Dam Superior Courtland Diversion Dam Tiber Dam Trenton Dam Virginia Smith Dam Webster Dam Woodston Diversion Dam Yellowtail Afterbay Dam Yellowtail Dam Select a Powerplant Pilot Butte Powerplant Yellowtail Powerplant
Recreation.gov Schedule of Proposed NEPA Actions
Located 34 miles northwest of Riverton, Wyoming, the Wind River Diversion Dam is a concrete weir with earth dikes, and has a hydraulic height of 19 feet and a volume of 124,000 cubic yards. The spillway is a concrete ogee weir with a capacity of 40,000 cubic feet per second. The outlet works to Wyoming Canal has a capacity of 2,200 cubic feet per second.
Bedrocks, in ascending order are Pre-cambrian gneiss and metasediments, Paleozoic to Cretaceous sediments, Eocene-age Wind River sandstones, terrace gravel and modern alluvium.
Project PSMBP - Riverton Unit Longitude -108.95534 Latitude 43.22476 Watercourse Wind River Original Construction 1921-1923 Modified Construction 1976 National ID Number WY01383 Dimensions
Crest Elevation 5581.25 ft Structural Height 37.0 ft Hydraulic Height (Normal Operating Depth at Dam) 19.0 ft Crest Length 2464.0 ft Volume of Dam Construction Materials 17200.0 cu yd Hydraulics & Hydrology
Spillway Capacity at Elevation 40000.0 cfs at 5576.7 Contact


Hunan plans to build Yuanling Cheping Pumped Storage Power Station
- The total construction period of the power station is 69 months, with a total investment of about 8 billion yuan
- After the completion of the power station, it mainly undertakes the functions of peak regulation, valley filling, energy storage, frequency regulation, phase regulation and emergency backup of Hunan power system
On March 19, 2023, the Hunan Provincial People's Government issued the "Notice on the Prohibition of Prohibiting New Construction Projects and Immigrant Population in the Land Occupied and Submerged Areas of the Yuanling Cheping Pumped Storage Power Station Project", which heralded the Yuanling Cheping Pumping The construction of the energy storage power station project has officially entered the track of rapid and high-quality construction, and officially entered the key implementation and construction stages of project reservoir area immigration, land pre-examination, and provincial development and Reform Commission approval.
Yuanling Cheping Pumped Storage Power Station
It is reported that the Yuanling Cheping pumped storage power station project is a layout project of the 16th Five-Year Plan of the National Energy Administration's "Pumped Storage Medium and Long-Term Development Plan (2021-2035)". In 2022, it will be a key implementation project of the 14th Five-Year Plan in Hunan Province. Yuanling Cheping Pumped Storage Power Station is located at the junction of Zimuxi Township, Daheping Township and Huochang Township, Yuanling County, Huaihua City, Hunan Province. The power station is a first-class (1) project with a total installed capacity of 1,200MW and four 300MW reversible hydroelectric generator sets.
The main pivotal buildings of the project include upper reservoir, lower reservoir, water delivery system, underground powerhouse system and ground switch station, etc. The Upper Reservoir is located in the top valley of the upper reaches of Xiejiaxi, Daheping Township. It was formed by damming and expanding the reservoir. The normal storage level is 588m, the stagnant water level is 547m, the adjusted storage capacity is 9.936 million m3, and the maximum dam height of the reinforced concrete face rockfill dam is 108m. The lower reservoir is located in Nanxiping Village, Jiemuxi Township. The normal storage level is 242m, the stagnant water level is 225m, and the maximum dam height of the roller compacted concrete gravity dam is 54m. The water delivery system is arranged with two holes and four machines, and the underground powerhouse is arranged in the middle. The initial construction period of the first unit of the project is 60 months, and the total construction period is 69 months. The static investment of the project is about 8 billion yuan.
It is reported that since the project landed in Yuanling County in early 2022, the Huaihua Municipal Party Committee, Municipal Government, Yuanling County Party Committee, and County Government have attached great importance to the construction of the project. Chang Yi Zhonghua is the commander, member of the Standing Committee of the County Party Committee, and the executive deputy county magistrate of the county government are in charge of the project headquarters. Currently, Lian Hongzhi, deputy director of the Standing Committee of the County People's Congress, is in charge of the daily work of the project headquarters. Editor/He Yuting
Sichuan Jinsha River Changbo Hydropower Station Project Approved
Huaneng Hydropower: plans to invest in Xizang Hydropower project


| 447 m (1,467 ft)|
| 415 m (1,362 ft)|
Bar Creek (right)
Caribou River (Rainy River District) Wikipedia
The Caribou River is a river in the Unorganized Part of Rainy River District in Northwestern Ontario, Canada. The river is part of the Hudson Bay drainage basin. It runs from Wilson Lake to Upper Seine Bay on Marmion Lake. Marmion Lake flows via the Seine River, the Rainy River, the Winnipeg River and the Nelson River to Hudson Bay.


This training set is a different application of automatic level control and the pump motor is controlled by frequency driver.
In this set, it is aimed to set the water level to the desired set values by driving the pump with frequency driver with automatic control systems. The effects of the proportional coefficient, the integral coefficient and the derivative coefficient on the PID control, the operating principle of the on-off control can be observed.
Transparent level column
Touch LCD Display
USB Computer Connection
Device, device cover, 1 printed experiment report, circuit diagram and product catalog
A x B x H: 900 x 500 x 1550 mm


Most infiltration and water retention models for unsaturated porous media proposed in the literature often are based on simplified representations of the pore system and use the matric head as the main state variable. An integrated study on the hydraulic properties of homogeneous calcarenites with a complex pore network is presented, aimed at assessing water infiltration and retention mechanisms, starting from dry to wet conditions under high water inflow. Medium-grained grainstones and fine-grained packstones were used as material for laboratory testing and model set up. Petrophysical characterization and bimodal distribution of pore volume was obtained by standard and unconventional procedures. Permeability test under saturated conditions was performed with constant and falling head tests. Falling head infiltration tests at bench scale were carried out to estimate the hydraulic properties of the materials under unsaturated conditions. Unsaturated hydraulic relationships such as the soil water retention curve (SWRC) and hydraulic conductivity function were examined. The advection–diffusion form of Richard's equation, together with the pore bundle model and dual porosity concept under equilibrium conditions represent the theoretical framework used to investigate the unsaturated hydraulic behavior of the calcarenites in the falling head infiltration test. The SWRC, relative hydraulic conductivity and celerity were determined through the capillary theory and pore bundle concept considering the bi-modal nature of the pore-size distribution. Theoretical solutions and model predictions were compared with experimental data, which demonstrated the dominant control of macro-porosity on water flow and infiltration rate. In particular, our experimental results indicate that the wetting front propagates mainly through the macropores with a gravity driven flow velocity higher than the diffusive flow through the micropores. The effect of texture, degree of saturation and boundary conditions on infiltration dynamics is discussed.
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- Flood Warning for Saline County, Kansas
- Flood Warning issued May 29 at 8:48PM CDT until May 31 at 1:00AM CDT by NWS
- Effective: Sunday, May 29, 2016 at 7:48 p.m.
- Expires: Tuesday, May 31, 2016 at midnight
...The Flood Warning is cancelled for the following streams in
Saline River at Tescott affecting Ottawa and Saline Counties
...The Flood Warning continues for the following streams in Kansas...
Big Blue River near Blue Rapids affecting Marshall County
Buffalo Creek near Jamestown affecting Cloud County
Cottonwood River near Emporia affecting Lyon County
Republican River at Clay Center affecting Clay County
...The Flood Warning continues for the following streams in Kansas..
Neosho River Near Neosho Rapids affecting Lyon County
Salt Creek near Ada affecting Ottawa County
Solomon River near Niles affecting Dickinson...Ottawa and Saline
The Flood Warning continues for
The Solomon River near Niles.
* until late Monday night.
* At 8:15 PM Sunday the stage was 25.9 feet.
* Flood stage is 24.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage early
* Impact...At 24.0 feet...Low land flooding continues along the river.


Nachtigal Hydropower Dam – Powering Cameroon sustainably
The 420 MW hydropower plant is under construction, and on completion will aim to bridge Cameroon’s demand-supply power gap.
Nachtigal Dam Contract
On August 18, 2019, Besix Group won the contract to build a 420 MW hydropower plant in Cameroon. Besix is undertaking the project in partnership with Nouvelle Génération d’Entrepreneurs (NGE, a French construction company) and the General Works Company of Morocco (known by its French acronym, SGTM).
The civil consultants for the project are Tractabel and ISL. Besix Group will be in charge of the design and civil works construction of the dam. GE Hydro France and Elecnor are responsible for electromechanical work. The transmission pipelines are being built by Bouygues Energies and Services.
Located on the Sanaga River, this dam is being developed by Nachtigal Hydro Power Company (NHPC) and will add an extra 30% of hydropower to boost the power scene in Cameroon.
NHPC is a collaboration between Electricité de France (EDF, 40%), International Finance Corporation (IFC, 30%) and the Republic of Cameroon (30%). The project is estimated to cost €1.2 billion (656 billion CFA francs). NHPC will operate the project for 35 years after which it will be transferred to the Cameroon Government.
IFC will provide an equity investment of €60 million and a loan of up to €110 million for the project. In collaboration with 11 commercial banks, IFC is arranging an investment of €806 million. MIGA and IBRD are providing €192 million and €257 million respectively.
The project will have five main components
- a two kilometre long dam with a height of 14 metres in roller compacted concrete;
- a 3.3 kilometres long inlet supply canal transferring water to the hydroelectric power plant at the rate of 980m3/s;
- a reservoir with a capacity of 27.8 million m3;
- a hydroelectric power station with an installed capacity of 420 MW (seven 60 MW turbines); and
- 50km of 225 kV transmission lines from the project site to Nyom 2 in the north of Yaoundé, Cameroon .
The project started in 2018 and is scheduled to last 57 months with commissioning of the last turbine expected in 2022.
A secondary 4.5 MW power plant will also be constructed downstream from the main power plant to generate electricity from the water flow (riparian release) to be discharged downstream of the dam. Electrical power generated will first be sent to the Nyom 2 substation, and then to the Southern Interconnected Grid (SIG).
The construction is to be completed in four phases- civil works, electromechanical equipment construction, building transmission lines and finally, constructing staff housing.
A Positive Force
This project will help increase the electricity production in Cameroon by 30%. Elisabeth Huybens, the World Bank’s Director of Operations for Cameroon, said "The Nachtigal Project, one of the very few public-private partnerships (PPPs) to have emerged in the hydropower sector in sub-Saharan Africa, will accelerate Cameroon’s development goals, including poverty reduction”.
Power generation costs will drop by US$100 million annually. A total of 1500 jobs is also expected to be created through this project.
Top Photo: Progress photograph of Nachtigal Dam construction works, released by BESIX on 22 December 2021 (@BESIXOfficial Twitter Handle)


The first unit of AES’s 223-MW Changuinola hydropower project in Panama is scheduled to begin operations in September, wire services reported.
The hydroelectric project will use water from the Changuinola River in Bocas del Toro province. The second unit is expected online by October, officials told Business News Americas.
Panama is developing 16 hydroelectric power projects with a total of investment of more than US1 billion to satisfy domestic power demand, news outlets reported earlier this year.
These private sector projects are expected to be completed by 2015. The new hydro projects are expected to add 700 MW of capacity to the power grid.
For more hydropower news and information, click here


Vertical axis Kaplan
Synchronous three-phase motor 400 V 350 kW
Gross distance gap:
What we did:
Authorisation, design and installation of the hydropower plant on the river Mella in Bovegno (BS). Realised in partnership with TSCHURTSCHENTHALER, the existing power plant with 100 kW Francis wheel was widened and equipped with brand new pipes and a new basement power station. Eltech was responsible for authorisation, design and realisation of electric devices.


Picture of the Day: Panama Canal Dredging
Dredging is a daily activity at the Panama Canal ensuring the safe passage of ships through the waterway. Also, dredging plays major role in the Panama Canal Expansion Program, the largest project at the Canal since its original construction.
The Panama Canal Expansion began on September 2007 at a total cost of $5.2 billion. The project will create a new lane of traffic along the Canal through the construction of a new set of locks, doubling the waterway’s capacity.
After the expansion the Post-Panamax vessels will be able to transit through the Canal, with up to 13,000 TEUs.
The deadline for completion of the Panama Canal Expansion project has been moved several times and is now 2016.
Dredging Today Staff


The US Bureau of Reclamation (USBR) has awarded Andritz Hydro Corporation a $25M contract to overhaul all four power turbines at Palisades Dam on the Snake River in Idaho.
The five-year project will rehabilitate the dam’s 54-year-old turbines with a new stainless steel runner and other components designed to increase efficiency and power production.
The power plant, located on the downstream base of the dam on the west side of the river, has a generating capacity of 176.6MW or 44.15MW from each of the four units. The improvements will generate enough electricity to power an additional 35,000 homes.
USBR expects to see a 30% increase in the efficiency during the winter season and about a 3.8% increase in efficiency in summer. Once the project is completed, USBR will only need to run one generator instead of two to produce power during the winter season.
The overhaul is expected to be completed by May 2016.
Palisades Dam was constructed by USBR in 1957 as part of the Palisades Project. It is a multipurpose facility that provides irrigation, flood control, hydropower, and recreation.


- Press Releases
PODGORICA (Montenegro), September 6 (SeeNews) – Montenegro's government has approved a concession agreement with local company PM Hydro for the construction of a 995 kW hydro power plant (HPP), it said on Friday.
The project envisages the construction of a hydro power plant on Vranjestica river in Kolasin municipality, which will produce 3.35 GWh of electricity per year, the Montenegrin government said.
The economy ministry issued a building permit for the construction of the hydro power plant in 2017. The entire capital of PM Hydro is owned by Montenegrin citizen Marinko Radulovic, according to data from Montenegro's business register.
Radulovic is a member of the municipal council of the ruling Democratic Party of Socialists (DPS) in Niksic municipality, according to information published on the party's website.
In May, environmentalists held protests against the construction of a hydro power plant in Bukovica, claiming that the project would cause an irreversible environmental damage. Back then, economy minister Dragica Sekulic said the government does not plan to grant concessions for the construction of small hydropower plants (HPP) as it will focus on the development of wind and solar projects instead.


Final EA published for wetland restoration project near Fargo, N.D.
The U.S. Army Corps of Engineers, St. Paul District, has published its final Environmental Assessment (EA) for the Drain 27 Wetland Restoration Project near Fargo, N.D.
A Finding of No Significant Impact, also known as a FONSI, was approved Sept. 14.
The project will restore 320 acres of farmland to wetland and upland prairie near Fargo, North Dakota. An earthen weir will be constructed across Drain 27 to pond water for the wetland.
The project will mitigate unavoidable wetland impacts from the construction of the southern embankment and associated infrastructure portions of the Fargo-Moorhead Metropolitan Area Flood Risk Management Project.
This includes the Red River Structure, the Wild Rice River Structure, the Diversion Inlet Structure and the Interstate Highway 29 road raise.


Design : SWMD: Springfield Lake Watershed Study and Upland Improvements
Jul 3, 2023
Lakemore, Springfield Township
07-01-2023 - 01-28-2025
The second phase of the Springfield Lake improvements will construct stormwater basins upland of Springfield Lake to control flow and remove polutants and construct "smart" lake outlet to reduce upland flooding if warranted.
This project is in the design phase.
In Springfield Township and Lakemore, benefitting Springfield Lake and the Little Cuyahoga Watershed.


Keith Ottes, PE, PP, CFM
Keith Ottes has nearly 20 years of experience in the design of various industrial/distribution, residential and commercial development projects with Langan. He has provided designs for conceptual site design, feasibility studies, grading and drainage design and layout, earthwork analysis, soil erosion and sediment control, stormwater management, utility design and layout, construction cost estimates, and roadways for numerous projects throughout the Northeast.
Ottes oversees the stormwater management and conveyance designs for challenging projects involving hydrologic and hydraulic impact analysis. He has been involved in interpreting and implementing a variety of stormwater management regulations and guidelines.


816 PM CST WED JAN 25 2017
The Flood Warning continues for
The Trempealeau River At Dodge.
* UNTIL MONDAY AFTERNOON…Or until the warning is cancelled.
* At 7:45 PM Wednesday the stage was 9.0 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast…Rise above flood stage by Thursday morning and continue
to rise to near 9.4 feet by Friday evening. The river will fall
below flood stage by Sunday evening.
* Impact…At 9.5 feet…The entrance road to the Trempealeau National
Wildlife Refuge is flooded.
LAT…LON 4404 9158 4420 9163 4423 9158 4422 9158 4402 9149


The Wolff Street Bridge
and Lakewood Gulch Channel Improvements project will include the replacement of the existing culvert under Wolff Street
with a 60-ft span bridge, channel improvements to increase the flow carrying capacity of the channel and extension of the existing Lakewood Gulch recreational trail from Tennyson Street
to Wolff Street
The Project is located along Lakewood Gulch from Wolff Street
to Tennyson Street
. This area is located north of 6th Avenue
and east of Sheridan Boulevard
. See Vicinity Map
and Site Map
The goals of the Wolff Street Bridge
and Lakewood Gulch Channel Improvements project are to reduce the extents of the 100-year floodplain, extend the existing Lakewood Gulch multi-use recreational trail, and improve public safety.
City and County of Denver
Urban Drainage and Flood Control District
Paramount Construction Inc.
Kiowa Engineering Corporation


We are a leading manufacturer & exporter of water level switch. Also offering level switches, pendulum level switch, float level switch, proximity level switch, high temperatures switch & top mounted level switches.
Supplier of refrigeration thermometer with external probe, temp. Indicator with ip65 protection, hydraulic cylinder ch, liquid level switches, bench-table top meter & electric actuators and hydraulic cylinder & actuator in Chennai.
Engaged in manufacturing and supplying of liquid level switches, ultrasonic level transmitters, vibrating fork type level switch, material level switch, paddle type level switch, conductivity type level measurement and tilt type level switches.
Wholesale supplier of level switches such as liquid level switches, mini liquid level switches and float operated liquid level switches. Also deals in pressure switches, transmitter switches and differential pressure switches.
Address: Plot No. T-165/3/11, Priyadarshini Mahila Swayamrojgar, Industrial Premises Cooperative Society M.I.D.C., Bhosari, Pune - 411034, Maharashtra, IndiaPhone: 8447501081 Call the SupplierWebsite: http://www.saelectronic.com/level-switches.html


Wells turbines are used in oscillating water column wave energy system and the turbine has a stagger angle of 90o. Numerical analysis is performed to analyze the performance of the turbine in the present work. A commercial code ANSYSCFX ® v14.0 was used for the simulations at different flow coefficient, different angles and a constant rotational speed. The turbulence model was k-ω SST. Higher guide vane angle produced higher efficiency of the turbine and the efficiency (enhanced) change was contributed because of the vortex formation in different locations in the flow passage or near the blade surface. Copyright © 2014 by ASME.


At the end of the year, construction was in progress 011 23 storage dams and 1 diversion dam, 9 power plants, 22 pumping plants, 440 miles of main canals, and miles of transmission lines.
The rate of construction progress 011 many projects was greater than had been anticipated. For example, the construction of Jackson Gulch Dam on the Mancos project in Colorado was scheduled for~ completion by April 1950 but was actually, completed in December 1948. 'by the end of the fiscal year, construction on O'sullivan Dam on the Columbai Basin project was virtually completed with only 62 percent of the contract time elapsed; thus completion was approximately 18 months earlier than was required by the contract.
|Categoria||Lingua Straniera - Inglese|


This paper presents the use of evolutionary computation for simulating reservoir release rates that are central to developing hydrologic reservoir routing models for Lake Shelbyville and Carlyle Lake. The two lakes, which are located in the Kaskaskia River watershed in Illinois, are multipurpose reservoirs operated by the U.S. Army Corps of Engineers to meet flood control, water supply, navigation, recreation, and conservation needs. To date, the reservoir storages apportioned for water supply and navigation needs have not been fully utilized. The objective of the current study is to develop a model for examining the potential impacts of increased water supply and navigation uses on lake levels during severe drought conditions. The reservoirs have their own operating schedules that include ranges of seasonal release rates based on reservoir pool elevations. In this study, storage routing and multi-objective evolutionary algorithms were coupled to simulate reservoir release rates on weekly basis using long-term historical records of daily inflows, storages, reservoir pool elevations and outflows. The simulated weekly release rates for the two lakes complement their respective reservoir routing models and the modified reservoir routing models will ultimately be coupled with previously developed Kaskaskia River watershed model. The resulting coupled model will be able to provide simulations of storages and reservoir pool elevations for the two lakes under varying climate and water use conditions, in addition to simulating flows at different location in the Kaskaskia River watershed. The multi-bjective evolutionary algorithm used in this study was effective in simulating the reservoir release rates and its application was instrumental in developing the modified reservoir routing models for Lake Shelbyville and Carlyle Lake.


Shenzhen River Regulation Project
Shenzhen River is the boundary river between the Hong Kong Special Administrative Region (HKSAR) and the Shenzhen Special Economic Zone. It originates near Niuweiling of the Wutong Mountain, flowing from northeast to southwest into Deep Bay. The total length of Shenzhen River is 37 km, with a catchment area of 312 km2. It is the drainage outlet of Ng Tung River, Ping Yuen River and the San Tin streams on Hong Kong side as well as that of Shawan River, Buji River and Futian River on Shenzhen side. Regional flooding in these river catchments was frequently threatening the public safety and properties on both sides of the Shenzhen River.
The Government of HKSAR and the Shenzhen Municipal Government are determined to regulate the Shenzhen River. A Joint Working Group on Regulation of the Shenzhen River has been set up to oversee the project implementation. The Drainage Services Department worked closely with the Shenzhen side in the planning, design and construction of the project.
The project consists of a four-stage scheme. The first three stages straighten, widen and deepen the previous 18km of Shenzhen River into 13.5 km of new river channel. While the main objective of the works is flooding prevention, it also has other associated benefits such as improving the river environment and navigation. Stage IV project further improves 4.5km natural stream at the upstream of the trained Shenzhen River in order to raise the flood prevention standard near the proposed Liantang/Heung Yuen Wai Control Point.
Stage I : Straightening of the Lok Ma Chau bend and the Liu Pok bend;
Stage II : Widening and deepening of the remaining sections from Liu Pok bend to the estuary;
Stage III : Widening and deepening of the section upstream of the Liu Pok bend to the confluence with the Ping Yuen River; and
Stage IV : Improving of the section upstream of the confluence with the Ping Yuen River to Pak Fu Shan(including Liantang/Heung Yuen Wai Control Point).
Stage I and Stage II works of the Shenzhen River Regulation Project are the most critical flood mitigation projects in the Northern New Territories. They cost about HK$300 million and HK$850 million, and were completed in 1997 and 2000, respectively. The new river channel is 9.5 km long. The flow capacity of Shenzhen River from Lo Wu to its estuary at Deep Bay has been significantly increased and, together with other river training works in the upstream, have basically eliminated the regional flooding in the North New Territories.
The Shenzhen River Regulation Project Stage Ⅲ is divided into two phases. Phase I covers the advance works for the reconstruction of border roads and fences. The river training works under Phase II are divided into 3 contracts, which involve river dredging, channel straightening, construction of river embankments, channel lining protection works, reconstruction or strengthening of 5 bridges (Lo Wu Railway Bridge, old footbridge, Man Kam To Bridge, etc.), improvement works to Dongjiang-Shenzhen watermains, environmental improvement works and landscaping works. The project costs about HK$650 million and the new river channel is 4km long.
The Shenzhen River Regulation Project Stage IV covers the advance works for the reconstruction of border roads and fences and the river training works. The river training works involve river widening, construction of river embankments, channel lining protection works, re-construction of a footbridge (Lo Fong Bridge), construction of a flood retention lake of 80,000m3, environmental improvement works and landscaping works. The project costs about HK$840 million and the new river channel is 4.5km long.
Upon the successful implementation of Shenzhen River Regulation Project (Stage I to IV), Shenzhen River has been straightened, widened and deepened, and is no longer a narrow and sinuous river covered by wild vegetations. The whole trained Shenzhen River section has a flood protection level of a one-in-50 year return period.
Shenzhen River Before and After River Training
|Before River Training||After River Training|
|Lo Wu||Lo Wu|
|Yuen Leng Chai||Yuen Leng Chai|
|Upstream of Man Kam To Bridge||Upstream of Man Kam To Bridge|
|Confluence with Ping Yuen River||Confluence with Ping Yuen River|
|Flood Retention Lake||Flood Retention Lake|
Shifting and Preservation of Lo Wu Railway Bridge
The training of the Shenzhen River requires the reconstruction of the old Lo Wu Railway Bridge. Because of its high historical value that could be traced back to 1945, both Governments decided to preserve the Lo Wu Railway Bridge at the site adjacent to the river and the Lo Wu Railway Station so that people can have a view of the bridge that recalls their old memory.
A system of pulley and trolley was used to shift the old Lo Wu Railway Bridge to its final position. This construction method enabled the whole Bridge to be preserved in its original form without causing any damage.
|Lo Wu Railway Bridge at night||Preserved Lo Wu Railway Bridge|
|Shifting of Lo Wu Railway Bridge|
Construction of Flood Retention Lake
The objective of constructing a flood retention lake under Stage IV regulation project is to attenuate peak flows discharging to the existing downstream Shenzhen River. Major components include an inlet overflow weir system, an outlet sluice, and a flood retention lake of 80,000m3. It is adopted to integrate an ecological sustainable development approach in the design to flood alleviation.
During heavy rainstorm events, the flood retention lake will temporarily store part of the stormwater collected from the upstream river to keep the downstream water level under control. Apart from enhancing the capacity of drainage channels, ecological features are included in the design. Wetland flora and riverbank greening elements will be planted to provide habitats for plants and animals and to enrich the ecology of Shenzhen River.
|Shenzhen River Regulation Project||Construction Cost (HK$ million)||Commencement Date||Completion Date|


Three Gorges Dam to work at full capacity in May
Updated: 2012-02-11 16:32
YICHANG - The Three Gorges Dam, the world's largest hydropower project, will work at full capacity by the end of May, when the last two power units will become operational, Chen Fei, general manager of the China Three Gorges Corporation, said Saturday.
Including the four 700,000-kilowatt power units starting to generate electricity last year, the six units are situated inside the mountain on the right side of the river bank.
Construction on the underground hydropower station in Central China's Hubei province began in July 2001 to harness the power of the water discharged during flood season on the Yangtze River, China's longest waterway.
The Three Gorges Project, launched in 1993 with a budget equivalent to $22.5 billion, consists of a dam, a five-tier ship dock and a total of 32 hydropower turbo-generators.
The 26 generators on the two sides of the dam had gone into operation as of October 2008, with each unit having a generation capacity of 700,000 kw.
The project generates electricity, controls flooding by providing storage space and adjusts shipping capacity on the river.
Last year, it generated 78.29 billion kilowatt-hours of electricity.
It also withstood three major floods last summer, taking the edge off the fierce flows by holding back the majority of the flood water in its reservoir to ease the flood's impact on the river's lower reaches.
The dam reservoir releases water in the dry season to ease droughts, particularly in downstream rice-growing areas.
Three Gorges Dam 'hugely beneficial' 2011-06-19 22:49
Power plants will double output of Three Gorges Dam 2011-06-21 07:52
Three Gorges Dam receives record number of visitors 2012-01-30 16:44
Three Gorges Dam releases 1.4b cu m water in winter 2012-01-18 17:41
- Govt to wipe out substandard slaughtering
- US to continue probes into wind tower imports
- Boeing calls for Sino-US efforts on ETS
- Cross-province effort to build economic hub
- Drop in lending deepens concerns
- China to expand government procurement
- Guangdong tough on economic crime
- Activists hope to thwart IPO bid


Video: China Is Building One of the World’s Largest Hydroelectric Dams
China is building a massive dam across the Qian River in the nation’s southern Guangxi autonomous region. Officials say that when completed in 2023, the Dateng Gorge Water Reservoir will claim the title of world’s largest concrete dam which is currently held by the Three Gorges Dam. Also known as the Datengxia Dam, the project has been under construction since November 2014 and is designed to provide flood control and generate electric power.
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Bringing more than just water to Townsville
As well as delivering long-term water security to Townsville, construction of the Haughton Pipeline Duplication has already created 641 jobs (source AEC) in advanced manufacturing and engineering in Townsville.
Haughton Pipeline Duplication Project
One of the biggest infrastructure projects in the region's history.
Watch the video on the construction of the Haughton Pipeline Duplication.
The Haughton Pipeline Duplication Project (HPDP) involves the duplication of a fully-functioning 36.5km pipeline from the Haughton Pump Station to the Ross River Dam.
The pipeline is capable of pumping raw water into the Ross River Dam to "top up" water levels during periods of very low rainfall.
The HPDP will deliver 234 megalitres of water per day into the Ross Dam. That's about 94 olympic-sized swimming pools.
Construction of the HPDP is scheduled to be completed by March 2020.
The HPDP is an important part of the Council's commitment to deliver its three-point water security solution.
The three-point water security solution involves:
- The new, duplicate 1.8m-diameter, 36.5km-long Haughton River pipeline
- The Recycled Water Re-use Scheme
- The Water Smart Package
The Queensland Government has contributed $225 million to improve water security in Townsville.


New Vertical Chemical Pumps Model ICV
The IC product range from VOGEL PUMPEN has been extended. The new model ICV is a vertical chemical pump (long shaft pump) for installation depths up to 6m with 2950 / 3550 rpm respective up to 10m with 1450 / 1750rpm.
VOGEL Vertikale Chemiepumpe Baureihe ICV
The basis for the new model are the hydraulics of the IC range, which have been taken over unchanged. The bearing and the long shaft design have been designed completely new. Due to the modular system 32 pump sizes can be constructed with only 3 long shaft sizes.
The material range is identical with the model IC. For accommodation to various service conditions adequate shaft seal variants and slide bearing materials are available.
Source: Xylem Inc.


Michaniki has stepped in the electricity production sector capitalizing on its know-how and expertise on Hydroelectric Station construction aiming to gain an important market position in the recently deregulated market of Greece
The second major step of the Company in the energy sector is a hydroelectric plant of multiple power capacity. This is the project of Agios Nikolaos Hydroelectric Plant in Arta Region of Western Greece.
MICHANIKI has submitted its application in the Regulatory Authority for Energy in order to take the authorization of producing electric power from the Hydroelectric Power station that is going to be constructed in the area. The Karpenisioti project with a power capacity of 5.4 MW will have an annual electricity output of 21.779.000 KW. The annual sales of electric power will amount up to € 1.5 m.
The Hydroelectric Station at Temenos, is going to be constructed in Drama Prefecture, Northern Greece on Nestos River. The project will include the construction of a canal of Deviation of Varitita Dam, and the construction of the Electric Power Plant. The power capacity of the hydroelectric power station is 10 MW and the annual electricity power will amount to 60.000.000 KW. The annual sales of electric power will amount to € 4.2 m.


Up Flow Filter: Removes fine TSS, metals, nutrients and bacteria with an advanced sorptive media filtration bed.
Passive Self-Cleaning: Up Flow Filter is passively back washed with drain down filters.
Once flow into the system subsides, the water level in the system will start to fall. Once the water level reaches the upper effluent side of the up flow filter it can no longer discharge. The remaining water within the filtration media is forced downward as the drain down filters continue to treat and discharge stormwater. This passive back wash action releases pollutants that would otherwise contribute to long-term clogging and performance issues.


1/25/24: Construction is expected to begin in the spring.
SS#31006 carries 226th St. over Finley Creek.
Replacement is part of the County Surveyors planned Finley Creek Reconstruction Project from Boone County to Town of Sheridan.
Proposed design will meet the current design standards for roadway/bridge and major flood events.
Local funding will be utilized for the construction of this project.


- Flood Warning for Clarke County, Virginia
- Flood Warning issued September 19 at 9:15PM EDT until September 20 at 9:00AM EDT by NWS
- Effective: Wednesday, September 19, 2018 at 9:15 p.m.
- Expires: Thursday, September 20, 2018 at 9 a.m.
...The Flood Warning continues for the following rivers in
Virginia, West Virginia...
Shenandoah River at Millville affecting Clarke, Jefferson and
...Flood Warning continues until Thursday morning...
The Flood Warning continues for
The Shenandoah River at Millville.
* Until Thursday morning.
* At 8 PM Wednesday the stage was 11.4 feet.
* Flood stage is 10.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Recent activity...The maximum river stage in the 24 hours ending at
8 PM Wednesday was 12.1 feet.
* Forecast...The river will continue to fall to below flood stage by
* Impact...At 11.0 feet, a small portion of Wilt Road (County Road
9/8) begins to flood. Water also begins to flow over Millville Dam.
* Flood history...This crest compares to a previous crest of 10.6 feet
on May 19 2018.
River Flood Observed 2AM 8AM 2PM 8PM Crest
Location Stage Stg Day Time Thu Thu Thu Thu Stg Day Time
Millville 10.0 11.4 Wed 8 PM 10.0 9.0 8.1 7.6


Nam Lik is a 100MW hydro power project. It is located on Nam Lik river/basin in Vientiane, Laos. 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 2007 and subsequently entered into commercial operation in 2010. Buy the profile here.
The project was developed by Nam Lik 1-2 Power. China International Water & Electric and Electricite du Laos are currently owning the project having ownership stake of 80% and 20% respectively.
The gross head of the project is 63m. The project generated 435 GWh of electricity. The project cost is $150m.
The project construction commenced in 2007 and subsequently entered into commercial operation in 2010.
Power purchase agreement
The power generated from the project is sold to Electricite du Laos under a power purchase agreement from 2010. The contracted capacity is 100MW.
Hangzhou Resource Power Equipment was selected as the turbine supplier for the hydro power project. The company provided 2 units of francis turbines, each with 50MW nameplate capacity.
Hangzhou Resource Power Equipment supplied 2 electric generators for the project. The generator capacity is 58.8 MVA.
For more details on Nam Lik, buy the profile here.


Perusahaan Listrik Negara (PLN), Indonesian state-owned electricity company, will issue bids for the development of 21 new renewable energy (RE) generating projects during the next ten years in Indonesia.
The planned projects have a total generation capacity of 1.2 GW and the development of these projects will be under the 2021-2030 electricity procurement plan (RUPTL). The RE projects include six hydro power plants with a combined capacity of 235 MW as well as seven geothermal power plants with a total capacity of 660 MW. Over the next ten years, the Government of Indonesia is targeting the development of power plants with a total capacity of up to 41 GW, comprising 21 GW of RE and 19.6 GW of fossil fuel-based generating capacity. The initiative is estimated to add 51.6 per cent more renewable generating capacity to the national grid.


Submersible pumps - Electric
Arven Impeller Pumps.
The motor and pump case are constructed of non corrosive Stainless steel with double lipped shaft seals , and single phase (230 volt) motors with thermal protection in the windings.
Arven Vortex Pumps
Vortex pumps have the ability to handle larger solids that an impeller pump including dirty water & sewerage. The pump casing & suction grid are constructed of stainless steel. The motor shaft is 316 S/S and the mechanical seals of silica carbide in an oil bath. The pump casing is cast Iron (Skipper Stainless steel) and the electric motor has thermal protection.
All pumps are supplied with 10 meters of power cable & plug, and are available with or without a float switch (for automatic operation)


This is the news about Gates of Salal Dam on Chanab River opened in J&K in District Reasi owing to heavy rain Silt rises in the reservoir. Where is Salal Dam Located? and Where is Salal Sam in India map? The dam is located it is known as “Salal Hydroelectric Power Station”. It is located on Chanab River in Jammu & Kashmir District India. Salam Dam surface area is “3.74 KM square. The dam is being operated by NHPC limited. Salal dam constructed on 1970. Gates of Salal Dam built on Chenab River opened in India A&J. Alert has been issued on 20-08-2020 by Halal Power Station due to heavy rain.
Gates of Salal Dam on Chenab River Opened in J&K India
It is a very latest news in J&K Gates of Salal Dam was built at Chanab River was opened due to heavy rain and Silt rises in the reservoir. On which river is Salal Dam located? So it is located at Chanab River A&J India. Salal Power project was constructed, built in 1970 it has 690 MW capacity. Peoples are being again and again not to venture at Chanab River.
J&K Gates of Salal Dam was built at Chanab River opened
Salal Hydroelectric Project was built in 1970 before 59 years ago in A&J Jammu Kashmir India. Gates of Salal Dam on Chenab River opened in J&K India district Reasi. The step of opening Salal Dam was taken owing to having rain at A and J. India has Dam name Ganga Dam, Dams Jammu, Dams in Kashmir, Sallasal Dam, Kishanganga River Baglihar Dam and Salal Dam A&J.


River Run Ranch Augmention Reservoir
Sun Communities contracted ESCO to complete the Augmentation Reservoir at River Run Ranch in Granby, Colorado. ESCO constructed a 30 Million-Gallon Impervious Reservoir to meet the stringent water requirements of the 460-acre development. This project included over 50,000 CY of mass excavation, installing 16-acres of impervious PVC Liner, and placement of 6,000 tons of rip-rap. In addition to the reservoir construction, ESCO also completed a new raw water treatment plant, two new well sites, pump station filling the augmentation reservoir, a 900,000 GAL water tank, intricate concrete spillways and weirs, as well as gravity augmentation piping. ESCO completed this project in sufficient time for the necessary augmentation needs required for Colorado’s strict water rights for the high-profile resort.


Responsible for the design plans, specifications, cost estimate and quantities for the replacement of the existing drainage system to be built with the reconstruction of Pump Station No. 8. The scope includes new sewers for conveyance plus linear detention in oversized sewers. The detention provided in the oversized sewers is required as a substitute to the 15’X15’ underground vault that was to be built adjacent to the pump station. The detention storage is required to alleviate the amount of flooding that occurs at the viaduct.


Baarah Channel dredging on the way
Maldives Transport and Contracting Company (MTCC) is mobilizing its equipment in preparation for the Baarah Channel maintenance dredging project.
Scope of the project includes:
- channel dredging operations of 79,100cbm;
- existing basin maintenance dredging of 8,600;
- supply and installation of navigational aids.
The value of the contract is MVR 12.17 million ($788.000), said MTCC.
The project is scheduled to be completed within 120 days.
The agreement between MTCC and the Maldives’ Ministry of National Planning, Housing & Infrastructure was signed in April 2021.


The power generation from strategically important Neelum Jhelum Hydropower Project has increased to 726 MW on 10th July. At present, three out of four units of the project i.e. Unit No. 2, 3 and 4 are contributing to the National Grid upto their maximum generation capacity.
Since its operation, Neelum Jhelum Hydropower Project has provided about 336 million units of electricity to the system so far.
Neelum Jhelum Hydropower Project, constructed in Azad Jammu and Kashmir on River Neelum, has an installed capacity of 969 MW. Four power generating units have been installed in the Power House, each of them having generation capacity of 242 MW. The project will provide about five billion units of electricity to the National Grid per annum. Annual benefits of the project have been calculated at Rs. 55 billion.


Tunneling work for Sitka’s Blue Lake hydro expansion project is just about wrapped up, and construction crews are pouring concrete for the new powerhouse.
There are three main components to the Blue Lake project: the dam itself, a new intake tunnel and vertical shaft called a “surge chamber,” and the powerhouse.
The Blue Lake Dam was originally designed to be raised about 23 feet. Dean Orbison, project manager for the Sitka Electric Department, said Sitka is “pushing the envelope” by going up another 83 feet. The $140-million project should be completed by February, 2015.
Check out the full story at KCAW: Blue Lake Hydro: Nothing small in Sitka’s biggest project


Drainage channel with cover panel in two different versions for the wet zone The drainage channel with cover panel ensures a suitable channel for the wet zone. The drainage channel is made of hardened aluminium profile with an anodised surface and a thickness of 2 mm. It is available in two variants and three sizes. Available sizes 800 x 80 mm 900 x 80 mm 1000 x 900 mm The cover is optionally available in glossy chrome or as a tilable cover. The height of the drain channel is adjustable between 95 mm and 130 mm. A circumferential, built-in sealing sleeve and a Viega drain set model Domoplex with horizontal outlet are inclusive. The drain capacity is 0.5 l/sec, according to DIN 274. The drainage channel has a sealing water height of 30 mm.


Flood Warning Continues for the Clarks Fork of the Yellowstone
Minor flooding is expected this weekend for the Clarks Fork of the Yellowstone River south of Laurel.
According to the National Weather Service:
- The Flood Warning continues for the Clarks Fork Of The Yellowstone at Edgar.
- Until Tuesday afternoon (or until the warning is cancelled.)
- At 9:30am Friday the stage was 8.0 feet.
- Flood stage is 9.0 feet.
- The river is expected to rise back near flood stage by Sunday...then fall gradually next week.


Water Level Intelligent System of Data Acquisition and Early Warning
In order to improve work efficiency of hydromet ric station, guarantee the accuracy and timeliness of water level data acquisition, process water level data in a timely manner and make early warning of risk, mobile devices are proposed as collection, sending and early warning terminal of water level data, and the upper computer as the receiving and processing te rminal of water level data. The water level access algorithm is studied, and the stripping method is used to obtain the high-accuracy water level information. The image thinning algorithm is applied to optimize, so as to reduce the complexity of the algorithm. The programming is able to control real-time data sendi ng, which realizes the data exchange between server terminal and communication module. Microsoft Access database is applied to the operation of water level information and the design of ma n-machine interface. Experimental study shows that this system can accurately acquire information in real time, undertake statistical analysis of data with many functions such as early warning, effectively improve the work efficiency of water level monitoring and improve the management level of hydrological industry.


The Ministry of Finance of
In addition to the construction and commissioning of the second hydrounit of the station with the capacity of 120 MW, the construction of an open 500 kV switchgear is planned, which will release the «blocked» capacity of the first unit and receive additional 40 MW.
Financing is provided for a period of 20 years, taking into account a five-year grace period for the payment of principal amount.
At present, due to the limitation of the capacity of the 110 kV transmission line between Kambaratinskaya
As a result, the total capacity of Kambarata


The project aims to provide a sealed car park between the Canoe Club and the Dragon Boat Clubs, in order to minimise dust and improve wet weather access to the site. The scope of works involve the construction of a sealed car parking area, including the renewal of stormwater culverts and other minor works at the site.
The project will include:
- gravel pavement construction
- kerb and channel installation
- asphalt surfacing
- stormwater drainage installation


Rotary Table Drilling
OVERVIEW: ROTARY TABLE DRILLING
IEG has recently re-vamped and manufactured the high-performance rotary head. It is for the hydraulic workover, snubbing and plug and abandonment sector.
Rotary head performance is defined by two main factors. The design of the rotary head and the hydraulic power unit delivering sufficient flow and pressure to drive it.
IEG’s rotary head exceed all others in the international market. With our high performance positive displacement motors with little power losses achieving more than 120rpm @22,000ft-lb.
IEG tries to specify standard components with moderate lead times in our design as much as we can.


Bhakra Dam-Design and Construction Features
C. L. Handa and O. P. Chadha
Appears on pages(s):
The Bhakra Nangal project is one of the multipurpose projects being constructed in India for irrigation and power. Major feature of the project is Bhakra Dam, a 680 ft high gravity concrete structure. General design features of Bhakra Dam are described including geology of the dam site, layouts, galleries, outlets and spillway, and foundations. In the section on construction of the dam, aggregate cooling, temperature control of the concrete to minimize cracking, mix proportioning, plant layout, and concreting set-up are described. Considerable attention is given to the raw materials, particularly the aggregate and pozzolans, and another section covers various concrete investigations.


Coton flood management scheme opens in Staffordshire
A new £2.5m flood management scheme has been opened in Staffordshire.
The Coton Flood Risk Management Scheme, near Tamworth, is the first completed section of the wider Lower Tame Flood Risk Management Scheme.
It includes new flood embankments to the north of Coton Lane and new flood walls along Lichfield Road.
Tamworth MP Christopher Pincher, who opened the scheme, said it would be a "great relief" to the people of Hopwas and Coton Green after recent flooding.
Construction work on the scheme, which began in October, also includes new walls around the Fox Inn roundabout and improvements to the culvert in Coton Lane and the Severn Trent Water surface water drainage chamber on Lichfield Road.
The remaining sections of the Lower Tame scheme include works in Fazeley, Kingsbury and Whitacre Heath. The total cost of construction for the project is £11m.
It is due to be completed by spring of next year.


Studies on Interior Flow Field and Performance in Mixed-flow Thruster
ZHANG Zhen, WANG Guo-yu, ZHANG Xiao-ying, ZHANG Mei-hong, LIU Shu-yan(Beijing Institute of Technology, Beijing 100081, China)
The performance of a mixed-flow pump stage in thruster and its interior flow field are studied by using numerical and experimental methods. Calculated region is from the inlet of pump stage to the outlet of thruster, which includes impeller, stator and spout. The region is cut apart by structure grid; governing equations are solved by NUMECA software. The parameters in flow fields are calculated by the method of time-marching scheme. The performance of flow rate-lift and flow rate-efficiency of pump stage are predicted according to the computational results,and external characteristics of pump stage are measured. Calculated results are preferably consistent with the experimental data. It shows that this calculation method has higher creditability and computational accuracy. Furthermore, the performance of pump stage is analyzed based on the computational result,and technical measures for improving pump stage are put forward.


Nore II power plant that uses the height of fall between Rødberg dam and Lake Norefjord in Nore og Uvdal Municipality in Buskerud County.
Ownership: 100 %
Production: 285 GWh
Power: 63 MW
The power plant is located where the Numedalslågen River flows into Lake Norefjord.
The power plant was commissioned in 1947 and has two Francis turbines with an installed capacity of 63 MW.
- Brochure about Nore power plants (PDF, 3.8 MB)


Fill Volume 3,020,000 m³
Description of the ProjectDam is a clay core sandy-gravel fill type. Within the scope of the Project, Cofferdams, spillway, bottom outlet, diversion tunnel, intake structure, downstream channel improvement, material access roads, main access road,s electrical and mechanical final design drawings have been prepared. Topographic surveys, geotechnical investigations, determining borrow areas of construction materials, hydraulic studies, dam body static-dynamic analysis, seismic hazard analysis, related cost analysis, financial and economic analysis are among the services provided.
- Dam body type: Clay core sandy gravel dam
- Height from the foundation: 65.00 m
- Maximum storage volume: 48.60 million m³
- Dam fill volume: 3,020,000 m³


Due to the continuous growth and development in Qatar, the Qatar General Electricity & Water Corporation (KAHRAMAA) has decided to launch an ambitious water project to provide seven days strategic water storage within its network system.
The project entails construction of five potable water mega reservoirs sites and interconnecting network of large diameter water pipelines. Each reservoirs site will ultimately comprise up to nine reservoirs. The reservoirs, with a capacity of 100 million gallons (450,000 m3) each, are the largest reinforced concrete reservoirs in the world.
The project will commence in April 2015 and is scheduled for completion in Q2, 2018.
Max Frank delivered the dowel system Egcodorn (over 5,000 pieces of Egcodorn transverse force dowel, type WN50).
Doha skyline through the arches of the Museum of Islamic art, Doha
Data for the project:
|Client:||KAHRAMAA, Qatar General Electricity and Water Corporation|
|Constructor:||Habtoor Leighton Group (HLG)|
|Construction period:||2015 - 2018|
|Frank-producten:||Egcodorn dwarskrachtdeuvels vernieuwd|


WAPDA starts Mangla power generation capacity enhancement project
August 15th, 2015 | Ahsan Jamil | No Comments
STAFF REPORT LHR: Water and Power Development Authority (WAPDA) has taken up the Mangla Dam refurbishment project to enhance the generation capacity from 1,000 MW to 1310 MW.
Chairman WAPDA, Zafar Mahmood said while talking to media, “The energy shortfall challenge could only be addressed only if we establish new electricity generation resources as well as enrich the existing power plants. This Mangla Dam capacity enhancement project aims to cater the need of electricity production; WAPDA is committed to make sure timely completion of the project within the stipulated time”.
The Mangla Dam refurbishment project costs Rs 52 billion and will be completed in three phases. A 310 MW generation capacity will be enhanced as a result of this project. In addition, the enhanced water capacity of the dam would provide about three million acre feet of additional water for irrigation apart from generating an extra 620 million units of low-cost electricity.
The enhancement project will help to mollify the persisting energy crisis of the country and take it out from danger zone as Pakistan has already paid hefty penalties in terms of economic downturn due to this challenge. These types of projects are assurance of a brighter Pakistan.
Short Link: https://www.technologytimes.pk/?p=14056


Alerts in Effect
Flood StatementIssued at 21:38 Saturday 24 September 2016
.Updated information on the river flood warnings along the Mississippi
River forecasts include past precipitation and forecast rainfall for
the next 24 hours.
If you encounter a flooded roadway, turn around and find an
alternate route. Turn around, don't drown.The Flood Warning continues for
The Mississippi River at Burlington.
* Until further notice.
* At 9:00 PM Saturday the stage was 14.6 feet...and steady.
* Flood stage is 15 feet.
* No flooding is occurring and Major flooding is forecast.
* Forecast...Rise above flood stage Tuesday morning...and continue
rising to 19.3 feet Saturday evening.
* Impact...At 19.0 feet...Water causes drive and access problems to
a restaurant along the river. Water also goes over the new seawall
on the riverfront. Water affects streets bordering the river in


Spier Falls Dam was built in 1903 and was:
- the 4th largest dam in the world
- the largest built by private enterprise
- the largest in the world to generate power
You can view the dam from the top of the Spier Falls Lookout trail on the northern side of the park.


« View county listFlood Warning
1023 PM EDT Mon Jun 26 2017
The Flood Warning continues for
The White River at Spencer.
* until Wednesday afternoon.
* At 9:30 PM Monday the stage was 14.1 feet.
* Flood stage is 14.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 14.2 feet by
after midnight tomorrow. The river will fall below flood stage
* At 14.0 feet...Lowland flooding begins in the Spencer and Gosport
areas. The river begins to backup Rattlesnake, Fall, McCormicks,
Limestone, Big, and Bean Blossom Creeks. Spencer Public Access
site begins to flood.
LAT...LON 3934 8665 3928 8675 3911 8692 3913 8696
3933 8674 3936 8666


Portland, St. Catherine, Trelawny, St. Thomas - Jamaica
Ministry of Science, Technology, Energy and Mining
2013 - 2015
Description for Hydropower Projects (Jamaica)
The scopes of the assignment, commissioned by Ministry of Science, Technology, Energy and Mining, are the pre-feasibility and feasibility studies for small-scale hydropower projects in Jamaica. The study includes five small-scale hydropower plants, located on Jamaica’s rivers (Morgan, Negro, Spanish, Rio Cobre, Martha’s Brae), with a total installed power of almost 18 MW.
These small hydroelectric projects in Jamaica are the first assignments obtained by Studio Pietrangeli in this Caribbean island and allowed us discovering the huge potential of the stunning wild hinterland in relation to the exploitation of the water potential of the numerous rivers / streams that branch out into amazing remote and inaccessible sites.
The main objective of the projects is to improve the Jamaican population’s access to reliable and quality electricity service, even in the most remote areas, and thus help reduction of petroleum importing and consequently reduction of greenhouse gas emissions.
- Canal ( L = 3.1 km ), penstocks ( L = 1.6 km )
- Power House ( IP=2.7 MW, Pelton )
- Canal ( L = 1.1 km ), pipe ( L = 1.7 km ) + penstock ( L=0.4 km )
- Power House ( IP= 2.3MW, Pelton )
- Canal ( L = 2.7 km ), pipe, tunnel ( L = 310 m ), penstocks
- Power House ( IP=7.8 MW, Francis )
- Power House ( IP=1.5 MW, hydromatrix )
- Pipe ( L = 2.1 km )
- Power House ( IP=4.4 MW, Kaplan )
Legadadi Dam (Ethiopia)
Addis Ababa urban water supply scheme with a storage capacity of 40 Mm3.
Dire Dam (Ethiopia)
Earthfill dam with impermeable core for water supply to Addis Ababa and to...
Hydropower Projects (Ghana)
The scope of the assignment, commissioned by...
Lusaka Aqueduct (Zambia)
Lusaka project including domestic water supply pipeline for the city of...
Acerenza Dam (Italy)
Water storage plant for irrigation purposes with a reservoir capacity of 42...
Alto Temo Dam (Italy)
Water storage plant for irrigation purposes with a capacity of 90 Mm³
Bujagali Hydropower (Uganda)
Hydroelectric project on the Victoria Nile River within an installed power of...
Chespi Hydropower (Ecuador)
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Arcichiaro Multi-purpose Project (Italy)
Rockfill dam with bituminous facing (BFRd) with a reservoir for irrigation,...


Ownership: 48.6 %
Production: 140 GWh
Power: 35 MW
The Ulset hydropower plant is located in the Orkla river system in Tynset Municipality in Hedmark County. The installed capacity of the plant is 35 MW, and the annual average production is 140 GWh.
The power plant utilises a gross head of 325 metres from the intake reservoir Lake Storsverjesjøen. Water from Lake Falningsjøen, as well as from two stream intakes, is also utilised. The power plant started production in 1985.


Chicoasen Dam (H= 261 m) in Mexico was constructed in extremely harsh environments, including complex topography and geology. Its design in early 1970’s and construction between 1974 and 1980 were achieved satisfactorily and it has been reference for the design and construction of many large dams worldwide. The project first successfully adopted highly plastic clay at the contact zone between corewall and abutment, which gave a good instruction for the following similar projects in the world. Another specific feature associated with this project is that the flood releasing is completely accomplished by the three tunnels with no spillways. The performance of the dam has been adequate up to date.
The project is owned by Comisión Federal de Electricidad.


The Orlík Dam is awaiting reconstruction
How will the reconstruction affect the recreation at Orlík?
The reconstruction on the Orlík dam will begin in the second half of this year. It will be the reconstruction of the ship's elevator for small vessels and the construction of a safety spillway. Thanks to the new spillway, the dam should withstand ten-thousand-year water. This would mean that the situation in 2002, when the flood damaged the dam, would not be repeated.
During the reconstruction, the water level will decrease, but the Vltava River Basin spokesman, Hugo Roldán, pointed out that the water level will be lowered in the low season and that the reconstruction should have minimal impact on the recreation.
The restrictions will apply mainly to the road crossing the dam, which will be temporarily closed at different stages of the reconstruction. Exact dates for road closure are not yet known. The Vltava River Basin will always inform about the restrictions in advance.


We practice the design of mining systems of pump dredges, the development of design documentation, as well as the production of tools and equipment for dredge heads, which, depending on the mining conditions and the physical and mechanical characteristics of the extracted soil, can be equipped with jet pumps (ejectors), jet and other types of disintegrators. When designing dredge heads, we take into account the specific factors of the formation of erosion and suction flows in the underwater face. As a result of the head-capacity curve construction, we carry out the justification and selection of dredge and water pumps, pulp pipelines and water pipes, stop valves and testing instruments.
Our qualification in this area of activity is based on the completed dissertation researches, monographs, books, engineering calculation methods, scientific articles, as well as on many years of experience in the design of pump dredges and the presence of machines introduced into production.
The list of the main works performed by us is given below.
Calculation of parameters of hydrotransport systems and erosion of the pump dredge MZ-16E;
Substantiation of the parameters and development of the project of the dredge head with pump dredge Gru 800-40;
Justification of rational parameters and selection of equipment for hydro-mechanized development of the Oleksandrivka sand deposit (site No. 2 "Novyi");
Substantiation of the parameters of the mining system and development of the jet dredge head ZNS 630-90.
Substantiation of rational parameters and development of design documentation for the pump dredge head MZ-8 with a jet disintegrator.
Calculation of the hydrodynamic and design parameters of the injector in the suction line of the pump dredge SSB 500/440.
Development of the jet dredge ZNS 300-120 project by replacing the mining system and dredge head on the floating base of the pump dredge MZ-11.
Development of a project for the modernization of the hopper marine dredge "Pechora" and its equipment with a dredge head with a spray disintegrator.


Used milk separator Westfalia with capacity 2000-3000 lt/h
Milk separator skimmer model MSA60 with a capacity of 7500 to 10000 lt. Refurbished and tested and comes with a complete control panel.
Refurbished milk separator skimmer model SE20X with a capacity of 4500 to 6000 lt/h.
Milk clarifier separator model SE05V1 of the year 2001 with a capacity of 2000 lt/h, 77 plates, 7500 cycle/min, 1.85 kW.
Milk separator model SE20X with a capacity of 4000-6000 lt/h.
Automatic cream separator ALFA LAVAL model MRPX 510 TGD-74.Carriage repainted Hydraulic capacity over 10,000 lt./h. Milk skimming 7,000 lt/h. Electric motor of 18.5 kW - 380V / 3 - 50 Hz. - Drum revolutions: 6.000 GPM. The volume of the sludge chamber is 7,8lt.


NOTICE: River Flood Warning for Saline County
The National Weather Service in Little Rock has issued a flood warning for the Saline River at Benton from late Friday night through Sunday morning or until the warning is canceled.
At 9:30 p.m. Thursday, the stage was 3.9 feet. Minor flooding is forecast. Flood stage is 18.0 feet.
The river is expected to rise to near flood stage early Saturday morning. Flooding of low lying pastures along the west bank is expected.


A $200 million investment will cover all electromechanical equipment with four 342-megawatt (MW) motor generators and the complete automation and control system. The project is scheduled to go into operation in 2013. The power house will feed through a 2-kilometer headrace tunnel from the upper reservoir on the Bedford Stream, and a similar length tunnel will be built for the tailrace that will lead water into a lower reservoir near the Braamhoek River.
Grinaker-LTA began building 67 kilometers of road works in January, and Murray & Roberts completed a 1.2-kilometer tunnel in 2007. A South African-Italian consortium, CMC Mavundla, is working on the main access tunnel contract for completion in 2009. B&E Quanza has the contract for quarrying and sub-base material and Afriscan Holdings has been contracted for water supply, sewage treatment, small access roads and building temporary Eskom offices. During the peak construction period, 2,500 people will be on-site.
The German and Japanese operating units of Voith Siemens Hydro will be joint partners in the project to design and manufacture the equipment. The motor generators will be supplied from Kawasaki in Japan and the pump-turbines from Heidenheim.
The 1,360-MW Ingula project, previously known as Braamhoek, will help to stabilize the security of power supplies on the national grid by using excess power generated during low demand periods to pump water to the upper reservoir to be released to meet demand for generation in peak demand periods.
The total project will take an investment of more than $1 billion, covering the construction of the two dams, underground water tunnels, an underground power house and the infrastructure of access roads and tunnels.
Eskom has also received the necessary permits and environmental approvals for another pumped storage scheme, Project Lima, in the country's northern province of Limpopo. The 1,500-MW hydropower station is planned for completion in 2014. Voith Siemens Hydro supplied the two 200-MW turbines for South Africa's first pumped storage scheme at Palmiet near Cape Town, which was commissioned in 1983.


Modeling of an Excavator System - Semi Empirical Hydraulic Pump Model 2011-01-2278
This paper describes the preliminary results of a study focused on the semi empirical modeling of an excavator's hydraulic pump. From the viewpoint of designing and tuning an efficient control system, the excavator is a very complex nonlinear plant. To design and tune such a complex control system an extremely good nonlinear model of the plant is necessary. The problem of modeling an excavator is considered in this paper; a nonlinear mathematical model of an excavator has been developed using the bond graph methodology realized in the AMESim® simulation software to replicate actual operating conditions. The excavator model is described by two models: a hydraulic model and a kinematic model. At this stage of research the hydraulic model deals solely with the model of the main hydraulic pump, which has been conceived as a semi empirical model. The pump model has been conceived as a grey box model; where the flow compensator and pressure compensator have been modeled as white box models while the actual flow characteristics of the pump as a black box model. The other excavator hydraulic system components comprising of valve block and actuators have been created using generic mathematical models. This approach has been followed to enable the study of the pump's dynamic behavior and interaction with a completely developed kinematic model of the excavator. Dynamic loading of the system has been realized through a 2D kinematic model of the excavator's body elements. The kinematic model comprises of the boom, arm and bucket whilst their respective motions have been defined for a cycle of operation. The dynamic parameters of each element are continuously calculated during an excavation cycle, thereby providing a platform to study the pump's behavior. At this phase of model development the semi empirical model of the variable displacement pump has been validated on the basis of a set of experimental data collected on a test rig at particular experimental operating conditions. The final objective of this study would be to develop a complete mathematical model of the Excavator Hydraulic Control System and in turn facilitate the study of alternate control strategies towards energy efficient systems. This paper presents the results of this study.


The commencement of the Koto hydropower project (Koto-HPP) is underway and it will be completed by December of this year, about 90 percent of the work is under construction said assistant project director while briefing a team of the district administration.
Koto-HPP assistant director Mohammad Shuaib said the powerhouse would generate 40.8MW of electricity that would be added to the national grid. Officials says it will generate 40.8MW of electricity.
He said that the remaining 10 per cent work on the project would be completed by coming December. He said work on the power tunnel had been completed by the contractor before its stipulated time.


Gender: : Male
Branch: : Electrical Engineering
City : Cuttack
Dear engineers please post OHPC previous year questions with answers.
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CRI 150 mm (6”) Borewell Submersible Pumpsets are powered by water filled, rewindable submersible motor suitable for continuous duty. The stator is wound with special water proof synthetic film insulated copper winding wires and made up of low watt loss silicon steel laminations assembled under pressure and rigidly locked in stainless steel stator shell.
T-Bolt design in all motor ensures rigid construction. Optimal design of impellers and diffusers offers best possible hydraulic efficiency. Built-in check valve prevents back flow and reduces the risk of water hammering.
- Optimized hydraulic design for efficient performance
- Specially designed thrust bearing to withstand high axial load
- T-Bolt design motor ensures rigid construction
- Smooth surface finish results friction free flow of fluid
- Designed for wide voltage applications
- SS 304 grade stainless steel stage casings and impellers in radial flow series
- SS 41 0 impeller/ Bronze impeller available in mixed flow series
- Horizontal application model available
- Power Range : 1.5kW - 26kW (2HP - 35HP)
- Voltage range : Single Phase 200 - 240V, Three Phase 380 - 415V, , 50 Hz, A.C. Supply
- Maximum total head : 516 metre
- Maximum ﬂow rate : 22 lps ( 79.2 m3 /h )


EBARA Received an Order for the Klong Prem Prachakorn Drainage Project in Thailand
Ebara (Thailand) Limited (ETL) received an order for a total of four pumps for the Klong Prem Prachakorn Drainage Project. (Image source: EBARA Corporation)
The lower Chao Phraya River basin, which includes the Thai capital Bangkok, is chronically affected by flooding during the rainy season. Widespread flooding in 2011 caused economic losses of more than 4 trillion yen. Bangkok has developed a flood control channel as part of its flood control program.
The Klong Prem Prachakorn drainage project is the construction of the third major drainage tunnel started after 2005. Having already supplied more than 1,000 drainage pumping stations in Japan, as well as products in Bangkok, Ebara's large-scale pumping plants were able to successfully complete the contract.
So far, a total of four plants have been built and commissioned for this project. Of the five plants, it will be the third plant for ETL to be supplied to the first plant, the "Makkasan Drainage Tunnel Project", and the fourth plant, the "Nong Bon Drainage Tunnel Project". Completion is scheduled for the year 2025.
Source: EBARA CORPORATION


Analysis of Hydraulic Lifting System and Design of Cylinder for the New 450t Schnabel Car
The hydraulic lifting system of 450t schnabel car is more complex variable geometry mechanism. A simple technique for solving variable geometry mechanism is presented. The technique is based on energy conservation principle of hydraulic lifting process. The lifting principle and geometrical models are analyzed and formulated. The lifting pressure is calculated. The static strength design and bulking stability checking are introduced for cylindrical pressure cylinder. Results show that the maximum rated oil pressure meets cylinder lifting requirement, the static strengths of cylinder and piston reach lifting safety and reliability, and anti-bulking stability can be guaranteed under the loading and working conditions.
L.Y. Xie, M.N. James, Y.X. Zhao and W.X. Qian
Y. H. Li et al., "Analysis of Hydraulic Lifting System and Design of Cylinder for the New 450t Schnabel Car", Advanced Materials Research, Vols. 118-120, pp. 871-875, 2010


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The Mallannasagar Reservoir is part of the Pranahita-Kandi project. The reservoir will be constructed in an area of 16,000 acres of land in Toguta and Kondapaka mandals. The Mallannasagar reservoir will have a capacity of 50 tmcft. The Pranahita-Kandi project will cater to the needs of Ranga Reddy, Medak, Nizamabad, Warangal and Nalgonda districts. The project is estimated at a cost of Rs. 9,800 crore.
An area of 16,000 acres is required for the construction of the Mallannasagar reservoir. As of May 2016, the district administration of Medak has already begun acquisition of land for the construction of the reservoir. As of May 12, 2016, 3,000 acres has been acquired and the remaining 13,000 acres will be acquired subsequently.
Etigadda Kishtapur, Toguta, Tukkapur, Vemulaghat and Pallepahad villages in Toguta mandal and Kondapaka, Singaram and Erravalli villages of Kondapaka mandal will be adversely affected with the construction of the project. The officials are planning to pay compensation to the 1,840 families affected by construction of reservoir in a single package.


Texas Water Development Board approves a $570,000 grant to the El Paso Water Utilities Public Service Board to finance water system improvements
For immediate release. Contact: Kimberly Leggett at 512-463-5129
AUSTIN - (June 21, 2012) - The Texas Water Development Board (TWDB) today approved by resolution a grant in the amount of $570,000 to the El Paso Water Utilities Public Service Board (El Paso County) from the Economically Distressed Areas Program (EDAP) to finance water system improvements.
The El Paso Water Utilities Public Service Board intends to use the funds for the construction phase of a new water distribution system to serve an estimated 428 EDAP-eligible residents in the Turf Road area.
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.


Construction of the City of Zillah’s ground level reservoir and companion booster pump station was completed in 2007. This welded steel reservoir has a total storage capacity of 0.61 MG and is expandable to hold a future capacity of 1.0 MG. The boosted storage is supplemented with auxiliary power from an on-site engine generator and automated control schemes that allow for circulation and exchange of stored water. Pressure Zone 2 Water Main Improvements were completed in 2010, and consisted of a new transmission main and booster pump station to supply potable service and fire protection to the higher elevation area of the City. This project also included telemetry equipment at the new reservoir and pump stations.
HLA provided land surveying services and legal descriptions, design engineering, inspection, and project oversight services essential for successful project completion.
Sources of Project Funding:
Total Project Cost: $2,800,000
Click on the photos below for a larger view.
©2021 HLA Engineering and Land Surveying, Inc. • All Rights Reserved.


Water level controller
System that automatically controls the minimum and maximum water levels of architectural fountains with two electrodes, one for the minimum level and the other for the maximum level. When the minimum water level is reached, the solenoid valve connected to the sensor is opened. It closes automatically when the maximum level is reached.
The assembly includes the panel, the 1” 24Vdc solenoid valve and electrodes (cable not included)


By increasing the retention water level elevation by 70 cm at the Jettenbach dam and increasing the flow rate by up to 70 m³/s, as well as installing three Kaplan turbines, a performance increase of 20 to 25 percent will be possible. This way, 120 GWh more electricity can be generated annually. The dams and dykes in the reservoir and the sealing structure in the Inn Canal are therefore being adjusted accordingly. In spring 2015, VERBUND comprehensively presented the current plans for the renovation of the existing hydropower plant Töging-Jettenbach to the local population.
The shell of the power plant
The Töging-based architects from Format Elf also presented their design for the façade, how the new power plant building will be functionally integrated into the surrounding premises and how it will complement the view of the historic powerhouse from the 1920s. The new power plant will generate more electricity without being visible, say the Format Elf architects.


Hexham River Hydro gets £100k cash boost
- 6 December 2011
- From the section Tyne & Wear
A £100,000 green energy prize has been awarded to a scheme to generate electricity from the River Tyne in Northumberland.
As part of Transition Tynedale's Hexham River Hydro project, a turbine would be built beside the bridge into the town.
This would harness the power of the river to generate enough electricity for about 150 homes.
It beat off national competition to win the cash, from Energy Share, the green energy organisation.


The purpose of Lesotho Highlands Water Project is primarily to supply water from Lesotho to the Pretoria-Witwatersrand-Vereeniging industrial region of South Africa. In addition, the hydroelectric scheme at Muela will supply enough electrical power to meet the needs of Lesotho.
The project consists of a number of dams, reservoirs and tunnels, and a hydroelectric scheme which will be constructed in four phases. Construction operations, if the project runs to completion, will last until around 2020. Phase IA commenced in 1987 and consists of the Katse Dam, a Transfer Tunnel from the impounded reservoir to Muela hydroelectric power station, the Muela Dam, and a Delivery Tunnel from the latter dam to the outfall on the Ash River, which is part of the Vaal River system. The tunnels total some 81 km in length.
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Mangla Dam Resettlement Organization
Tarbela Dam Resettlement Organisation
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Adit approved awarded to M/s Baluchistan Barrage capacity carried Chashma Chashma Barrage Chief Engineer circuit commissioned completed concrete construction Consultants Contract contractor cost crore cusecs Dam Project Department Design Directorate Drainage drains electrification equipment expenditure feet financed Fuel Gas Turbine Gates Government of Pakistan Grid Station groundwater Guddu Gudu Hydel Hyderabad installed investigations irrigation Jhelum June Kalabagh Dam Khan kV Grid Stations kV line KV S/C lacs Lahore lakh land Link Canals ln addition lndus Basin load lrrigation Lyallpur Mangla Dam material miles million acres MKWH monitoring Multan operation Paisas period Peshawar Phase-l piezometers power transformer prepared programme Project Planning proposed Punjab Quetta remained in progress repairs reservoir revised River Rohri salinity SCARP scheme soil Spillway storage studies Sukkur supply survey Tarbela Dam Thermal Power Station Total transmission lines tubewells Tunnel units Upto end villages Wapda waterlogging


DPAS is split case pumps with high capacity and high operating pressure. High performance and reliable.
Also available in vertical execution
The pumps are available in different material types (cast iron, bronze and stainless steel) and with different types of mechanical shaft seals, depending on the application of the pump.
The pumps are delivered as standard with IE3 motors that are prepared for frequency converter operation.
The Trium HVAC pumps are also available with ATEX-motors


Achwa 1 – Hydro – Uganda
Achwa 1 is a 42MW run-of-the-river hydropower plant located on the Achwa River, about 22 km north-west of the bridge on the Gulu-Kitgum road in Nothern Uganda. It is less than 200m upstream of the Achwa 2 project. The project will be evacuated along the Lira-Gulu-Agago 132kV transmission line being built by UETCL. The Power Purchase Agreement, Implementation Agreement and all permits for the project are in place. The project is expected to be constructed in 26 months and completed in Q1 2020. Site preparation is planned for Q1 2018.