Construction of 24,000 Cubic Meters of small protective Dam (Chakdam) will be completed by the end of this Year.
Aqrab 12: November 2, 2020
The Ministry of Agriculture, Irrigation and Livestock has started the construction of 24,000 Cubic Meters of water and small water reserves in the forests.
These small water reservoirs and reservoirswhich have been in operation since, the beginning of the current Fiscal Year, will be built in Herat, Farah, Ghor, Kandahar, Baghlan and Samangan provinces this Year.
Also, 160 Hydroelectric Dams will be constructed in the forests of Herat, Farah, Ghor, Kandahar, Baghlan and Samangan provinces.


New Sideros RL Hydraulic Positioner 11000
New Sideros RL 11000 Hydaulic Welding Positioner.
Rotolift Three Axis 11000KG Capacity Welding Positioner.
Various model configurations are available with standard capacity ranging up to 13 tonne. Larger capacity models are supplied on request and built to your individual specifications. The 3 Axis construction of the ROTOLIFT offers greater versatility over the standard 2 axis design used in the majority of existing positioners.


National Water Commission
2016 - in progress
Description for Hermitage (Jamaica)
The scope of the assignment is the rehabilitation of the existing Hermitage Dam that is the main storage reservoir for the Kingston Metropolitan Area (KSA).
- Hermitage Dam (Concrete Gravity type: H = 45 m, L = 208 m)
- Reservoir Capacity: Vol. = 1.8 Mm3 (design) 1.23 (current)
- Intake controlled by 4 valves , of which 2 are currently operating
- Water Supply : V= 68,000 m3/d (design), 41,000 m3 with 16 hours of operation day
- Assessment of the conditions of the dam
- Bathymetrical survey, Investigations
- Feasibility study
- Detailed Design
- Tender Documents
- Environmental and social impact assessment
- Operating manuals, Watershed Management
Jamaica 5 (Jamaica)
This project includes prefeasibility and feasibility studies for five small...
Millennium Park (Nigeria)
Design of hydraulic works, water supply and irrigation system, reservoir and...
Grand Ethiopian Renaissance Dam
This majestic project, born of the vision and...
Djouè river hydroelettric plant (tributary of Congo).
Bituminous face rockfill dam for irrigation, water supply and hydropower...
Lower Diamphwe (Malawi)
This project includes the Lower Diamphwe Multipurpose Dam and associated...
Gibe III (Ethiopia)
The design of this record breaking 250 m high...
Carpat PSP (Romania)
Pumped storage plant with an installed power of 300 MW.
Santu Miali (Italy)
Refurbishment of the Santu Miali hydropower plant


State Grid Heilongjiang Shangzhi Pumped Storage Power Station started construction:
The Heilongjiang Shangzhi Pumped Storage Power Station Project of State Grid Corporation of China officially started construction. The project is located in Shangzhi City, Heilongjiang Province, an old revolutionary area, with a total installed capacity of 1.2 million kilowatts, four 300,000 kilowatt pumped storage units installed, and two 500kV lines connected to the Heilongjiang provincial network, with a total investment of 83.58. It is planned to be put into operation in 2029 for power generation.
McCoy Energy Storage Project ID: 76424


Issued by NWS Oklahoma City, OK
FGUS84 KOUN 080654
NATIONAL WEATHER SERVICE NORMAN OK
154 AM CDT SAT OCT 8 2016
...A crest below flood stage is forecast for the following locations
along the Red River...
For the Red River near Burkburnett...
* Flood stage is 9.0 feet.
* The latest stage was 7.55 feet at 1 AM Saturday.
* The Red River is forecast to crest near 7.3 feet around 7 AM
The Red River is forecast to crest well below flood stage at this
location. This will be the last statement for this location for


Salto Grande-Argentina is a 945MW hydro power project. It is located on Uruguay river/basin in Entre Rios, Argentina. The project is currently active. It has been developed in single phase. The project construction commenced in 1974 and subsequently entered into commercial operation in 1979.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||945||945||–||Active||Entre Rios, Argentina|
The project is currently owned by Integracion Energetica Argentina with a stake of 100%.
Salto Grande-Argentina is a reservoir based project. The net head of the project is 25.3m. Salto Grande-Argentina underwent through rehabilitation & modernization during 2019-2023.
The project construction commenced in 1974 and subsequently entered into commercial operation in 1979.
Power Purchase Agreement
The power generated from the project is sold to Cammesa under a power purchase agreement with a contracted capacity is 945MWh.
Turboatom was selected as the turbine supplier for the hydro power project. The company provided 7 units of kaplan turbines, each with 135MW nameplate capacity.
Power Machines supplied 7 electric generators for the project. The generator capacity is 150 MVA.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


San Carlos Lake was formed by the construction of the Coolidge Dam and is rimmed by 158 miles of shoreline. The lake is located within the 3,000-square-mile San Carlos Apache Indian Reservation, and is thus subject to tribal regulations.
After it was built, the reservoir filled gradually. Because of irrigation needs, the water level at the lake sometimes is low enough to kill its self-sustaining fish, but during wet years, the water can overtop Coolidge Dam. Since construction of the dam, the lake has been nearly empty at least 20 times, and has been full only three times.


Akole taluka comes in high monsoon region. To store the water for all seasons Akole has various dams & splendid waterfalls like Randha waterfall on rivers. This Water Dams supplies water to 3-4 districts. Bhandardara is one of the main dam in Akole Taluka.
Bhandardara ( Wilson Dam)
Bhandardara Dam ( Wilson Dam) in Akole taluka has been built during British rule in India.Bhandardara Dam is the main water reserve for Akole taluka’s lifeline river Pravara.


Iran and Azerbaijan will build 2 hydropower stations
Iranian Government approved a legislative proposal for the joint construction of 2 hydropower stations.
That was reported by Iranian media services.
The project envisages the construction of power stations on the Araks river, on the border of 2 countries.
The legislative proposal was approved by the majority vote.
The construction of 2 HPPs is only a part of agreements concluded between Iran and Azerbaijan in December 2015.
Within the bilateral agreement, the countries will cooperate in the construction of power stations on dams Gyz Galasi and Hoda Afarin, as well as the construction of Ordubad power station in Azerbaijan and Marazade in Iran.
Iran and Azerbaijan are developing their cooperation in different fields.
Iranian President visited Baku in August 2016. During that working trip, Iran and Azerbaijan signed several cooperation agreements.
In June 2016, Iran completed the construction of power transmission lines to distribute 600 MW of electricity to Azerbaijan.
The initiation of power exchange with Azerbaijan was scheduled for September 2016.
Iran is capable of exporting up to 2k MW of electricity annually.


Manila, Philippines – Prime Metro BMD Corporation (PrimeBMD) successfully delivered the Tayabasan Weir 2 project, the first phase of the Wawa Bulk Water Supply Project, an ongoing flagship project of the government which aims to improve water supply and delivery to Metro Manila and province of Rizal.
The project involved the design and construction of a dam creating a reservoir and a water transfer that will be used to deliver 80 million liters per day (MLD) of water to the Calawis Treatment Plant being constructed by the Manila Water Company, Inc. (MWCI).
The project’s scope of work included the design and construction of a concrete dam with a 167-meter surface level, installation of a pumping station with an 80 MLD capacity, various works including pressure grouting and cofferdams, design, procurement, and installation of hydromechanical equipment, installation of a 650-meter-long conveyance pipeline and a temporary access road running parallel to it, construction of pavement layers, final concrete surfacing, pipe culvert crossing and drainages, and an access road to Upper Wawa Main Dam.
The Wawa Bulk Water Supply is a critical water infrastructure flagship project being delivered as part of the Metropolitan Waterworks Sewerage System’s (MWSS) long-term plan to improve water quality, supply, and delivery to Metro Manila.
The flagship project involved the construction of two water supply infrastructures—the Tayabasan Weir 2 which will provide 80 MLD in the first phase, and the Upper Wawa Dam which will deliver the full 518 MLD in its second phase by 2025.
The successful completion of the Wawa Bulk Water Supply – Tayabasan Weir 2 project builds on PrimeBMD’s reputation for providing best-for-project outcomes and delivering critical infrastructure that improves the quality of life and supports the development and welfare of our host communities.


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El Portal and Trousdale Channel Rehabilitation Phase 2
This project repaired the existing concrete lined channel that had moderate damage due to normal wear and tear. The repair will prolong the life of the storm drain channel.
Scope: Project work included, but was not necessarily limited to construction of channel improvements.
Plan Holders List


Tashkent, Uzbekistan, Dec. 13
By Demir Azizov - Trend:
The specialized state enterprise in Navoi region of Uzbekistan has completed construction of the Kuksaroy reservoir with a volume of 7.5 million cubic meters of water, the company's management told Trend.
The reservoir located on an area of 78 hectares will regulate the seasonal flow of mountain rivers and supply water to nearly a thousand hectares of irrigated areas in the region.
About 12 million cubic meters of water will be annually released from the reservoir for agriculture needs. Currently, the reservoir is filled by over 50 percent.
The cost of construction of the water reservoir totaled 21 billion soms. The official exchange rate on Dec.11 is 2765.20 soms/$1.
The project was financed from the state budget.
It is expected to implement a pilot project on creating intensive fruit farming covering an area of 100 hectares near the Kuksaroy water reservoir in the next two years.
The cost of the project nears $2 million.
It is planned to expand the area of gardens to 500 hectares in the future. Moreover, it is planned to build a canning factory for processing fruits for export there.


STP350 triplex plunger pump is a horizontal singlea-acting pump widely used for cementing, small-scale fracturing and circulating operations. It is mainly composed of PG series power end and T series fluid end. Power end: model PG05, housing welded of steel structure, Fluid end: 5″,4-1/2″,4″,3-3/4″ plungers for different pressure and displacements.
|Max. input power||265kW(350hp)|
|Max. output HHP||224kW(300hp)|
|Max. rod load||489412N(110000 lbs)|
|Gear rasio||4.32 : 1|
|Weight||2050kg (4520 lb)|


Hydro Parts Solutions recently manufactured three impellers for a rerate project being developed through Hydro’s Rocky Mountain service center in Denver, CO. Hydro Global Engineering determined the new hydraulic design for the rerated pump, which required modifications to the casing and new impellers.
The end user chose to have the new impellers manufactured out of CA6NM using investment casting, which provides a smoother surface finish to slightly increase the impeller efficiency. Hydro Parts Solutions drove the project from casting package design through final machining, with the impellers being cast and finish-machined within 6 weeks.
The new pump design was successfully tested at Hydro’s performance test lab, validating the new hydraulics. The custom performance will help the midstream end user achieve their desired system flow with maximum reliability and minimum energy usage.


07 Mar Work on design and build of N. Miladhoo Harbour is well underway
Posted at 09:06h in News 0 Comments
Work on design and build of N. Miladhoo Harbour is well underway, with overall 40% project progress. Breakwater construction works for the project is currently ongoing.
The N. Miladhoo Harbour project consists of; dredging and excavation operations of 37,222cbm; construction of a 248m breakwater; a 137m revetment; a 286m quay wall; 1,430sqm of paved area; installation of navigation lights and streetlights. The value of the project is MVR 42.1 million.
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Pratissoli Series MKS High Pressure Plunger Pumps
High pressure plunger pump, available in 3versions. Low-high pressure packing design wi thintegrated cooling system. Vertically arranged suction/delivery valves Splash lubrication. External gear box positionable on left orright side of the pump. Drain valve kits
Pump body in cast iron. Manifold made of spheroidal cast iron,nickel treated. Self adjusting shaft bearings with doubleroller rim. Forged steel connecting rods withantifriction bearings Cranksahft made of nitrited, hardened andtempered alloy steel Light alloy piston guides, nickel treated. Solid ceramic plungers. Stainless steel valves.


The scope of work in this project included the supply and installation of reinforced stormwater drainage pipes and drainage pits for Cargo Road upgrade in Orange. The project was carried out over 6 months, and the total cost was $980,000.
The scope of work in this project included the construction of a new stormwater detention basin for Orange City Council, in the drainage reserve adjacent to William Maker Drive and Molloy Drive in Orange. The services included earthworks, concrete footpath construction, drainage works, sewer main works and landscaping. The project was carried out in 10...
The scope of work in this project included earthworks and reconstruction of a bridge, installation of steel concrete beams, concrete tilt panels and installation of rock gabions for erosion control within the Blayney Shire Council. The project was carried out in 7 months and the total cost was $150,000.
CPB carried out the installation of water pipeline (approximately 13km) for Central Tablelands Water, including backfill and importation of bedding and backfill material. The project was completed in 3 months and the total cost was approximately $100,000.


With the increasing operation of hydropower stations, a refined generation dispatch model becomes more urgently needed for the precise control of cascade hydropower stations under deterministic runoff, such as rules extraction by simulation operation under long series runoff, optimal dispatch level evaluation of historical operation process, and etc. However, most of the studies on refined generation dispatch model focused on the refined description of transform relationships between hydropower and electric energy or hydraulic connection between cascade hydropower stations. The time scale of dispatch model, which is another important factor affecting the accuracy of dispatch model, was short of attention. The time scale of dispatch model affects theaccuracy of dispatch model in a complex way. This paper attempted to discover the influence between time scale and the accuracy of dispatch model by both theoretical analysis and case study. The control variable method and progressive analytical method were used to uncover the key factors which affect the accuracy of dispatch model and to analyze its influence rule qualitatively. The case study of cascade hydropower stations downstream of the Jinsha River has been conducted to analyze influence between time scale and the accuracy of dispatch model by these factors. With modeling analysis in different inflow conditions and water level control strategies, we have uncovered key factors which affect the accuracy of dispatch model quantitatively. Then we proposed a multiple time-scale generation dispatch model for accurate description of the dispatch problem. The simulation results show that the theoretic results proposed in this paper is sound. Moreover, the proposed model has a better performance on both accuracy and efficiency compared with other models, which means that this model can be used for historical operation evaluation and dispatch rules extraction of cascade hydropower stations downstream of the Jinsha River.


Side channel pump
Our side channel pumps are available in stainless steel and bronze. Depending on the material they are more or less suitable for different special applications. Expecially the food industry, including the dairy industry and the chemical industry as well as large agricultural facilities and industries use side channel pumps for many different purposes.
The electric motors (only 230 V) for our side channel pumps are equipped with a toggle switch, which enables the user to chose in which direction the pump is conveying. To control the flow rate there is option to equip the pump with a bypass valve.


When an application dictates low cost, medium-flow capacity and accurate control of pressure, the Type M Plus™ Pressure Control Valve answers the need. The Type M Plus™ Pressure Control Valve is designed for short-distance (up to 50 feet or 15.2 meters), low-force pressure control applications. Installed with the proper positioner it replaces mechanical linkage, push-pull cable and master slave hydraulic positioning systems. Delivery pressure is controlled by the position of the operating lever or pedal. Any increase or decrease in the system pressure is automatically compensated for by the valve once the desired output pressure is established.


The 1.08GW Kariba North hydroelectric power station is located on the bank of Zambezi River at Kariba in the southern province of Zambia. It includes the Kariba North Bank (KNB) (720MW) and Kariba North Bank Extension (KNBE) (360MW) power plants.
The KNB power plant was developed between 1969 and 1976 as part of the Central African Power Corporation’s (CAPC) development programme.
The KNBE power station was developed by Kariba North Bank Extension Power Corporation Limited (KNBEPCL), a special purpose vehicle (SPV) owned by Zambia Electricity Supply Corporation (ZESCO). It was inaugurated in December 2013.
Kariba North hydroelectric power station location details
The Kariba North hydroelectric power station is located on the northern bank of Zambezi River, 130km south of Lusaka at Kariba in Zambia.
The hydro station sources water for power generation from Kariba Dam located on the Zambezi River at the border of Zambia and Zimbabwe. The dam has a water storage capacity of up to 185 billion cubic meters (bcm).
The Kariba South power station located on the southern bank of Zambezi River belongs to Zimbabwe. It was initially developed with a capacity of 750MW and later expanded to 1050MW by the addition of two 150MW units in March 2018.
Kariba North power project make-up
The Kariba North hydroelectric power station comprises of four vertical shaft Francis-type turbine generating units of 150MW capacity each producing a total power of 600MW. The four turbines operate at a head of 92m with a rated discharge 186.79m3/s.
Under a rehabilitation programme executed between 2004 and 2009, the capacity of the power plant was expanded to 720MW. The expansion project was completed in June 2010.
The KNBE power station consists of two 180MW vertical-shaft Francis turbines with a rated discharge 227.6m3/s operating at a head of 89m for each single unit. It has two intake chambers for water at an elevation of 458m. The underground powerhouse is 24m wide and 51m in length.
The power generated is transmitted through a 130km long, 330kV transmission line from KNBE power station to the existing Kafue west substation.
Power purchase agreement details
The power generated from Kariba North power station is purchased by ZESCO under a 20-year long-term power purchase agreement approved by the Energy Regulation Board (ERB) in April 2011.
The plant operates with an average operating time of 3.5 hours a day under the regulation of PPA.
Financing of Kariba North power station extension
ZESCO initiated the extension of the KNB power project with an estimated investment of £338.2m ($421.1m).
China’s Export-Import Bank provided a syndicated loan of £253.47m ($315.6m), while the remaining £84.73m ($105.5m) was funded by Development Bank of Southern Africa.
Sir Alexander Gibb & Partners (Gibb) was awarded the contract for engineering work to construct the 600MW Kariba North hydroelectric power station. The main civil construction contract was awarded to Mitchell Construction Kinnear Moodie Group in January 1971.
Energoprojekt was engaged by the government of Zambia to complete the work of Kariba North power station after Mitchell Construction went into receivership.
EDF Hydro Engineering Centre rendered project ownership services for the project.
In 2003, the Government of Zambia signed a letter of intent (LOI) with Sinohydro Corporation in partnership with ZESCO for the 360MW extension of KNB power station.
Rehabilitation of Kariba Dam
The Kariba Dam is undergoing a restoration scheme since 2017 to reshape the plunge pool and the refurbish the spillway gates. The project will increase the life of the dam and is anticipated to be completed by 2025. It will ensure interminable water supply to both Kariba North power station and Kariba South power station.


oa Civil Engineering = Siviele Ingenieurswese - Praktiese toepassings van rekenaarsimulasie vir reenvalinvoer en stroomvloei-opbrengs
Computer simulation of subprocesses in the hydrological cycle is very attractive for engineering applications. Three such simulation models were designed and are presented with a few practical applications. The first model synthesizes seasonal point precipitation for State College, Pennsylvania. This model was used to extend a 27 year historical precipitation record to a record for 54 years. The second model generates precipitation events which cause hydrograph peaks with return periods of 2 years or more. The third model attempts to translate precipitation into stream flow. The last two models were used to calculate peak flow rates with specified return periods on two small catchments. The stream flow model was also used to simulate daily stream flow from historical precipitation records on a medium-sized catchment and to calculate the seasonal increase in stream flow which can be obtained by means of artificially increased precipitation. With small modifications these models may find wide use in South Africa.
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Model 2914 constant flow regulator has an AISI 316 stainless steel body and a two-piece construction for easy maintenance. It is a sturdy, industrial constant flow regulator.
The regulator is a membrane type differential pressure controller with a build-in needle valve for flow rate adjustment and it is usually supplied with Model VL variable area flow meter.
The 2914 is designed to provide constant flow of medium volume liquid flows in applications where supply or backpressure varies. Typical applications are control of seal waters, control of flush waters, batching of liquids and water purging.
|Max. flow||20 l/min H2O|
|Nominal flow||14 l/min H2O|
|Max. diff. pressure||12 bar (*20 bar)|
|Max. static pressure||25 bar|
|Pressure drop at nominal flow||3 bar|
|Max. temperature||90°C (Momentary 120°C)|
|Connections||BSP 1/2" or NPT 1/2"|
|Installation position||Any required|
|*) Special construction on request|


Detail ANTI- CAVATION CONTROL VALVE
nti-Cavitation Control Valve
Model 106 -( ) -AC Singer Valve' s Anti-Cavitation ( AC) trim can be used where large pressure differentials ( as great as 300 PSID) preclude the use of standard control valves and varying flows makes orifice plates ineffective. Double sliding cages of heavy stainless steel construction direct and contain cavitation recovery, allowing it to dissipate harmlessly, protecting the valve and downstream piping. Valves using AC trim are self-contained, control variable flows and significantly reduce noise.
Tampilkan Lebih Banyak


Grinnell® Swing Check Valve, Series: 590, 4 in Nominal Size, Grooved, 300 psi, Ductile Iron Body, Softgoods: EPDM Gasket, Painted, Black, 4-1/2 in O.D, Import
The Grinnell® model 590 grooved end swing check valves are compact and rugged swing-type units that allow water flow in one direction and prevent flow in the opposite direction. They are manufactured with a ductile iron body and a nickel-plated seat. A resilient elastomer seal facing on the spring-loaded clapper ensures a leaktight seal and a non-sticking operation. The model 590 check valves are designed to minimize water hammer caused by flow reversal. The model 590 check valve is furnished with grooved ends and can be installed using Grinnell® grooved couplings or flanged adapters. The model 590 check valves have been designed with a removable cover for ease of field maintenance. These valves can be installed horizontally (with cover in the upward position) or vertically with the flow in the upward direction.


The metropolitan waterworks and sewerage system (mwss) may be eyeing the same river as the one cited in the controversial p52-billion project of the previous administration, but an agency. Laiban dam has intrigued me ever since i first saw photos of mountain bikers visiting this oddity in the sierra madre mountains this massive concrete monolith built during the marcos era. Stop laiban dam 601 the mwss is that there will be a shortage of water in metro manila by 2015 that is why they believe that they have to build another dam in. Laiban dam project by alfred alexander l marasigan flipzi's cove posted march 3, 2013 edited march 5, 2013 updated march 6, 2013 glimpse of laiban in. Check out the pcij’s coverage of the laiban dam project: mwss: laiban deal with smc ‘may or may not be best to build the p52-billion laiban dam in rizal. Since more than 30 years, thousands of indigenous, threatened to be displaced from their ancestral lands, are resisting the laiban dam project, planned to solve a corporate water crisis.
The state-run water agency might choose kanan dam, instead of laiban dam, since the former can hold 3 million liters a day (mld), while the latter can only contain 18 mld, the administrator. The proposed kaliwa dam project is simply the laiban dam project “re-packaged” due to strong opposition to the said project mwss now intends to construct first the kaliwa and then later the. Kaliwa-kanan is the same laiban dam project that has been stalled for years by the another concern with mega dam-building is the direct violation of their. Mwss, water firms updating supply masterplan october 16 laiban dam is a proposed bulk water supply it takes about at least five years to build the dam. Ldp laiban dam project capacity building loan of $326 million for the mwss new water source development project of the government of the philippines1. Govt ready to build kaliwa dam the laiban dam will act as a catch basin as well as flood control mechanism to moderate the flow of runoff surface water and.
Comments on philippine news march against laiban dam by rudy arizala halt to the implementation of plans to build dams in the mountain range. A labor union leader from the metropolitan waterworks and sewerage system (mwss) assailed the collection of “advance tariffs” from consumers purportedly to finance the construction of the. Banqiao dam disaster case study essays and research papers build laiban dam build laiban dam abulencia, christine jeanette e bunag, princess arjhen s. Kaliwa dam news articles about kaliwa dam the kaliwa dam project is a proposed centennial dams tulad ng laiban at kanan dam sa building of dams.
P 52-billion laiban dam project in tanay the farmers built a camp-out in front of the dar building and will join the other farmers from central luzon today. The new centennial water source-kaliwa dam project a main dam (laiban dam) would be built at the upper kaliwa river in barangay laiban. The metropolitan waterworks and sewerage system (mwss) is preparing for the bidding for the kaliwa dam, the planned newest water source for metro manila and nearby provinces that will ensure.
Posts about big dams written by sierra madre while four more big dams are set to be built in the kaliwa transbasin namely: kaliwa at laiban dam. Laiban dam is a proposed bulk water supply the laiban site where the project is supposed to be built is a barangay of municipality of tanay in the province.
Laiban briefing uploaded by steve b mwsp iii (laiban dam project) 27 october 2009 employment, capacity building laiban dam project larp budget components. A third option was to continue building the laiban dam in tanay, rizal. Laiban dam project chronology - free download as pdf file (pdf), text file (txt) or read online for free.
In a joint protest action with various organizations campaigning against the proposed laiban dam project held wednesday down for violating the build. Stop building large dams in indigenous communities proposed large dams include the laiban dam stop the building of large dams in indigenous communities. Diversifying conglomerate san miguel corp said yesterday it remains interested in pursuing its $1-billion unsolicited proposal to the government to build the laiban dam located in tanay. As for the laiban dam dealing with opposition to water and power projects inc submitted its unsolicited proposal to build laiban dam. If and when built, the kaliwa low dam is expected named laiban dam see also laiban dam new centennial water source-kaliwa dam project references http.
Indigenous people groups oppose it will be built on the kaliwa river in the second will be the construction of the much larger laiban dam. Caticlan airport dev’t gets new investor but faces delays san miguel loses laiban dam proposal to build the laiban dam project.


BS carbon steel PN16 flanged check valve single flow valve
Brief description: Pressure Sealed Check Valve Product Range: Size: NPS2 to NPS24 (DN50 to DN600) Pressure Range: Class 900 to Class 2500 Connection Port :RF, RTU, BW Material: Cast (A216 WCB, WC6)WC9, A350 LCB A351 CF8, CF8M, CF3, CF3M, A995 4, 5 A995, A995 6), alloy 20, Monel, Inconel,Hastelloy standard design and manufacture API 6 D,BS 1868 Face-to-face ASME B16.10 API 6 D, DIN 3202 End Connection Flanges to both ends ASME B16.5, ASME B16.47, MSS SP-44 Only 22 (NPS) socket welded joints for…
Function is introduced：Check valve is a kind of valve which can automatically open and close the valve disc depending on the flow of medium itself to prevent medium backflow.
use：The purpose of the use of check valves is to prevent the counterflow of the medium, generally in the outlet of the pump to install a check valve.
In order to prevent medium counterflow, check valves should be installed in equipment, devices or pipelines.


Classification and structure characteristics of forged check valves
Jan 11, 2019
According to their structures, forged check valves can be divided into three types: a forged lift check valve, a forged swing check valve and a forged disc type check valve. Forged lift check valves are available in both vertical and horizontal versions. The forged swing check valve is divided into three types: single flap, double flaps, and multi-flap. The forged disc type check valve is straight-through.
According to their connecting formats, the above several types of forged check valves can be divided into four types: threaded connection, flanged connection, welded connection and butt clamped connection.
A forged check valve is a valve whose opening and closing member is automatically opened or closed by the flow of the medium and the force to prevent the back flow of the medium. Forged check valves are automatic valves, mainly used on pipes with one-way flow of media, allowing only the media to flow in one direction to prevent the emergence of accidents.
Swing-type check valve: The valve flap of the swing-type check valve has a disk shape and rotates around the rotation shaft of the valve seat passage. Since the valve passage is streamlined, the flow resistance is smaller than that of the lift check valve. It is suitable for large diameter pipeline applications where the flow rate is low and flow are not changed frequently, but it is not suitable for pulsating flow, and its sealing performance is not as good as that of a lifting type check valve. The swing-type check valve is divided into three types: single flap, double flaps and multi-flap. These three forms are mainly divided according to the valve diameter. The purpose is to prevent the hydraulic shock from being weakened when the medium stops flowing or reverses.
Lift check valve: when the valve flap is sliding along the vertical centerline of the valve body, the lift check valve can only be installed on the horizontal pipe, and the valve flap can be a ball when used on the high pressure small diameter check valve. The shape of the lift check valve is the same as that of the shut-off valve (function same as the shut-off valve). So, the lift check valve has a relatively large fluid resistance coefficient. Its structure is similar to the shut-off valve, the valve body and the valve flap are the same as the shut-off valve. The upper part of the valve flap and the lower part of the valve cover are machined with guide sleeves, and the valve flap guide sleeve can be easily lifted and lowered in the valve guide sleeve. When the medium is downstream, the valve flap is opened by the medium thrust. When the medium stops flowing, the valve flap is landing itself on the valve seat. The drooping falls on the valve seat are to prevent the medium from flowing back. The direction of the inlet and outlet passages of the straight-type lifting check valve is perpendicular to the direction of the valve seat passage; the vertical lift check valve has the same direction of the medium inlet and outlet passages as the valve seat passage, and its flow resistance is smaller than that of the straight-through type.
Disc type check valve: A check valve whose valve flap rotates around the pin in the valve seat. The disc type check valve has a simple structure and can only be installed on a horizontal pipe, and the sealing performance is relatively poor.
Pipeline check valve: A forged check valve whose valve flap slides along the centerline of the valve body. Pipeline forged check valve is a new type of check valve. It is small in size, light in weight and good in processing technic. It is one of the development directions of check valves. However, the fluid resistance coefficient is slightly larger than that of the forged swing check valve.
Compact check valve: This forged valve is used as a boiler feed water and steam shut-off valve. It has a comprehensive function of a forged lift check valve and a forged shut-off valve or a forged angle valve.
Dervos Forge is a world-class Forge Valve Manufacturer Supplier & Exporter, offering Ball Valve, Check Valve, Gate Valve, Globe Valve in various froged steel materials, sizes, standards and types. Our stable support comes from our skilled workers. Owing to their diligence, our workshop can always fulfill the production on time and keep quality good.


HDh. Kumundhoo harbor development project has been awarded to MTCC on design and build basis.
Kumundhoo Harbor construction project of MVR 35.6 million was contracted to MTCC by the Ministry of Planning, Housing and Infrastructure on October 5, 2021, allocating a completion period of 210 days.
As part of the project the MTCC have to dredge a new harbor basin, entrance channel, along with construction of Breakwater, Quay walls, and installation of Revetment. In addition, installation of navigation lights will be undertaken.
MTCC has been undertaking many development projects throughout the country including building roads, airports and harbors.


112th Congress Legislation
Representative Steven A. King 2011 - 2012
|# of Bills||Type||Rank of 444 Members||Median|
Bill H.R.2942: To direct the Chief of the Army Corps of Engineers to revise the Missouri River Mainstem Reservoir System Master Water Control Manual to ensure greater storage capacity to prevent serious downstream flooding.
|Committee||Last Action||Date of Last Action|
|Referred to the Subcommittee on Water Resources and Environment.||09/16/11|


|Type||Numerical Modeling, Design, Construction Services, Hydraulic Engineering and Design, Structural Engineering and Design|
|Applications||Hydraulic Structures, Water Conveyance, Structural Engineering, Hydraulic Modeling|
Alden was retained by the Northern Water Conservancy District (Northern Water) for the Hansen Supply Canal Poudre River Drop Structure Replacement Project. Alden was the prime consultant for the Project and provided complete structural and hydraulic engineering services, including hydraulic modeling for the design of the replacement drop structure and overall site improvements. The new structure included a stepped spillway, stilling basin, and retaining walls.
Alden performed Computational Fluid Dynamics (CFD) modeling of the existing structure and the proposed structure. The new structure is designed for a peak discharge of 1,500 cfs. Alden also performed 3D finite element modeling for the structural design. Alden collaborated with Northern Water staff to identify maintenance needs and preferences for the new structure. The stilling basin includes an access bridge, jib cranes, and stoplogs to isolate the structure for future maintenance and inspections. The existing site featured extremely steep slopes at 1V:1H with poor surface drainage. The final grading established stable slopes and improved surface drainage to keep water away from the new structure.
Details of the project included:
The project also required coordination regarding the environmental impacts to the Preble's mouse habitat and an adjacent eagle's nest. Design was completed in July 2019. Construction was completed in March 2020 with the first water flowing through the structure on April 1, 2020.
The Poudre River Drop Structure Project was the recipient of The Colorado Contractors Association's 4th Annual H2O Awards. The Project won in the category of Open Concrete Flow Structures under $6 million.
The overall Project Team included:


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Tri Clover, Pump model C216MD56TS3/4
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A licence to enable the construction work to extend Tzaneen Dam wall as a dam with safety risk, has been issued, the Department of Water and Sanitation announced on Monday.
The department said the project is aimed at augmenting the water supply in the Greater Letaba River Catchment of the Limpopo Province, by raising the dam wall by three meters, to increase the yield of the dam to address water shortages.
“This will then result in an increase in the gross storage capacity from 157 million m3 (cubic meter) to 195 million m3. This project is set to largely benefit the agricultural sector, as it will make water available for the establishment of resource-poor farmers in the irrigated agriculture sector around the area,” the department said in a statement.
The Tzaneen Dam spillway was partially demolished in 2016 to allow the new spillway configuration in the form of a labyrinth type to be constructed.
The scope of the work includes the demolition of the top of the existing spillway, the construction of a labyrinth spillway and other minor works.
The department said the Development Bank of Southern Africa (DBSA) has been appointed as the implementing agent, and the construction of the wall is expected to commence in March 2023 and be completed in March 2025.
To date, the department said, the demolition of the original spillway has been completed, and this accounts for 10% project progress.
“Upon construction completion, Tzaneen Dam will be a 53,3 m high Category III dam. A Category III dam classification is the highest hazard rating by the Dam Safety Office, considering the size and the potential for loss of life in the unlikely event of a catastrophic failure of the dam,” the department highlighted. – SAnews.gov.za


The Hněvkovice Dam breaks the Vltava river about 4 km south-east of the town Týn nad Vltavou.
The concrete dam was built between 1986 - 1992 to provide sufficient water for the neighbouring nuclear power station Temelín. Powerful pumped storage with two Kaplan turbines (2 × 4.8 MW) was built here for the production of electricity during energy peaks and for utilization of the redundant electricity production from the power station Temelín.
The reservoir stretches about 15 km up stream on the Vltava river and it ends near the small town Hluboká nad Vltavou. It is 312 ha large and contains about 22 million cubic metres of water. The dam is 30.5 m high and 191 m long. There are three spillways on the dam-crest - each of them is 12 m wide. Water power station is controlled from a centre in Štěchovice Dam (south of Prague), which also controls near water power station in the Kořensko Dam.
The road from the town Týn nad Vltavou to the village Temelín leads across the dam. The red marked path leads around the dam and along the left bank of the Vltava river. This trail continues through the village Purkarec and the ruins of the Karlův Hrádek castle to the town České Budějovice.


The 800MW Koldam hydroelectric power project (HEPP) is under construction on the Satluj River in the Bilaspur District of Himachal Pradesh, India. India’s state-run National Thermal Power Corporation (NTPC) is the owner and developer of this hydel project.
Koldam HEPP was initially planned to be operational in 2009, but its commissioning has been postponed to 2014 due to environmental and geographical hurdles faced during its construction. When operational, the HEPP is expected to generate approximately 3,054GWh of electricity per annum.
Koldam HEPP location and details
The 1,600MW Eemshaven Power Station is being constructed near Eemshaven Port in Groningen, Netherlands.
Koldam HEPP is situated 6km upstream of Dehar Power House of the Beas Satluj Link Project, approximately 150km from Chandigarh, in northern India.
The project will comprise a 167m tall rock and gravel fill clay core dam with a crest length of 474m and a chute-type spillway with six 17.1m wide and 17.74m radial gates situated to the left of the dam. It will further comprise a surface-type 135m x 42m x 48m powerhouse containing four vertical Francis-type 200MW turbines to be operated with 144m hydraulic head, an open-type tailrace channel 100m in length and a surface/conventional-type switchyard.
The reservoir created by the dam can hold up to 560 million cubic metres of water.
Power generated from the Koldam HEPP will be fed into the national grid via the 400kV D/C line.
The plant’s power output will be supplied to a number of Indian states including Delhi, Haryana, Punjab, Rajasthan, Uttar Pradesh, Himachal Pradesh, Jammu and Kashmir, and Chandigarh. The host state Himachal Pradesh is entitled to receive 15% of the generated power free of cost and a further 12% at bus-bar rate.
Koldam HEPP construction
Koldam HEPP broke ground in 2000. Construction of the main dam began in 2004. The excavation of the main dam area (1.86 million cubic metres) was completed in February 2007, whereas the dam gravel filling works had started in August 2006. The dam construction, however, suffered frequent delays due to rain and leakages from the dam clay.
Other major construction works included the erection of upstream and downstream coffer dams, as well as the construction of an approach channel, diversion tunnels, a pen stock, a power house and a switch yard.
A consortium comprised of BHEL, Marubeni and Toshiba was awarded the contract for supplying, transporting, installing and commissioning the Francis turbines, generators, transformers and associated machinery for Koldam HEPP.
NTPC awarded the contract for main civil works related to the dam, spillway and power intake to Italian-Thai Development Public Company Limited (ITD).
Gammon India was awarded the power house construction and other associated civil works contracts. It was also responsible for the construction of the tailrace channel, bay work and penstock tunnel works. Gammon subcontracted the penstock and power house construction work to AMC projects. The penstock steel liner works were sub-contracted to PES Engineers.
A joint-venture of Afcons and R.N.Shetty & Co was contracted to provide the decanting arrangement for the project. The excavation and the disposal of muck at the desilting arrangement were sub-contracted to AMC projects.
Om Metals was awarded the contract to supply the hydro-mechanical equipment. The contract for the construction of two diversion tunnels was awarded to Continental Construction. The sub-contract for the construction of spillway, underground grouting and drainage galleries was awarded to MCM Services.
L&T was awarded the contract to construct the 400kV switchyard and the transmission line.


1. Oman’s SEZAD inks $517m contract with Boskalis Westminster
The Special Economic Zone Authority in Duqm (SEZAD) awarded a contract worth $517.1m (OMR199.1m) to Boskalis Westminster for the construction of a liquid berth at Duqm port.
The planned berth will allow Duqm Port to export liquid refined products, said SEZAD in a statement.
Under the terms of the deal, Boskalis Westminster will carry out detailed engineering designs, construction of marine infrastructure, and dredging and reclamation works.
Meanwhile, Worley Parsons Engineering has been engaged to oversee the engineering and construction works of the project, which is expected to be completed within 32 months from the date of the awarding of the contract.


Please use this identifier to cite or link to this item:
|Title:||Little Dell outlet structure : hydraulic model investigation|
|Authors:||United States. Army. Corps of Engineers. Sacramento District.|
Fletcher, Bobby P.
Jet flow gates
Salt Lake City, Utah
Little Dell Dam and Reservoir
|Publisher:||Hydraulics Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (U.S. Army Engineer Waterways Experiment Station) ; HL-89-7.|
Abstract: A 1:10-scale physical model of the discharge outlet, plunge pool, and exit channel was used to investigate and develop a practical design that would provide satisfactory hydraulic performance. Operation of the model with the original design indicated satisfactory performance in the conduits and jet flow gates. However, failure of the riprap in the plunge pool and exit channel was observed. The side slopes of the plunge pool and exit channel were modified to provide a stable environment for the riprap.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Technical Report|
Files in This Item:
|TR-HL-89-7.pdf||5.13 MB||Adobe PDF|


For boiler feedwater line:
- Automatic minimum flow valves to protect boiler feedwater pumps.
- Leak-off type control valve to ensure minimum flow of boiler feedwater pumps.
- Free flow reverse current check valve to protect boiler feedwater pumps.
- Boiler feedwater control valves with high rangeability (combining disk stacks and perforated cage in the same valve).
- Parallel slide gate (anti thermal-binding) main boiler feedwater isolation valves.
- Free flow reverse current check safety valves for high-pressure preheaters.
- Electronic steam level switches for high-pressure preheater condensate wells.
- Polishing plant for reduction of condensed water conductivity through microfiltration.
- Condensate extraction pump.
- Isolating diverting or modulating three way valve for uninterrupted economiser flow transfer.
- Main steam valve and main feedwater valve: isolation by parallel slide gate valve, (anti-thermal binding).
- High-performance parallel slide gate valves for purges.
- Level control: level monitoring/interruption with level safety device in the boiler drum (dome).
- Desuperheating: see different types in products.


PROJECT GOAL: Improve agricultural production and reduce flooding losses while minimizing the unwanted environmental impacts of subsurface drainage.
PROJECT OBJECTIVE: Demonstrate controlled tile drainage as a flood mitigation practice as well as the water quality and quantity benefits. The project is intended to set an example to increase the adoption of drainage water management practices in the Red River Valley.
Controlled drainage and a saturated buffer are both being evaluated as part of this project.
The purpose of this project is to improve understanding of primary productivity in the Red River and the diversity and population structure of the algal communities occurring along the river system. This will be accomplished through taxonomic identification of periphyton and phytoplankton assemblages necessary for characterizing responses to nutrient gradients along the Red River of the North.


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It's suitable for use in reduced spaces. It's ideal for flooded basements, farm use, draining water from swimming pools, fountains, typical residential or commercial water transfer uses.
Lowest pump starting level 4.5", lowest pump sucking level 1.8" (in manual mode)
automatic control start water level 4 to 7", automatic control close water level 2.4"
Dimensions 9.5"D x 9.5"W x 14"H


Kaufmann Pool Pump 1.1kW
Voltage: 220-240 V~50 Hz.
Input power: 1100 W / 1.5 HP.
Max Head: 15 m.
Max. Suction: 3 m.
Max Flow: 365 l/min.
Fitting size: 50 mm.
1.The motor is completely water proof, safe and reliable.
3.Insulation class: F.
4.Protection class: IPX5.
5.The motor allows S1 to work continuously.
6.The design of the Casing cover nut can be disassembled easily.
7.With large capacity of basket volume.
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9.The pump’s wet parts are reinforced with engineering plastics.
10.Water pump drainage installation.
11.Equipped with check valves to prevent backflow.


Hydraulic lifting device
It is used for vacuum tumbler filling.
Made of stainless steel – 1,4301
Electric and hydraulic drive by stainless cylinder
All components are made according to technical and work safety requirements
1680 х 945 х 1470 mm.


From UPSC perspective, the following things are important :
Prelims level : Diamer-Bhasha Dam
Mains level : India-Pakistan border disputes
Pakistan government has signed a contract with a joint venture of a Chinese state-run firm for the construction of the Diamer-Bhasha dam in the PoK.
Make a note of major dams in India along with the rivers, terrain, major Wildlife sanctuaries and national parks incident to these rivers.
- Diamer-Bhasha Dam is a concreted-filled gravity dam, in the preliminary stages of construction, on the River Indus between Kohistan district in Khyber Pakhtunkhwa and Diamer district in Gilgit Baltistan region of PoK.
- The dam will have a gross storage capacity of 8.1 Million Acre Feet (MAF) and power generation capacity of 4500 MW.
- The eight Million Acre Feet (MAF) reservoir with 272-metre height will be the tallest roller compact concrete (RCC) dam in the world.
- It will have a spillway, 14 gates and five outlets for flushing out silt.
- The diversion system involves two tunnels and a diversion canal — all three having 1 km length each.
- The bridge — a box girder structure — under the contract will be constructed downstream of the dam structure while the 21MW power plant will be built to meet the energy requirements of the project during construction.
Why is this dam being built?
- The project is designed to serve as the main storage dam of the country, besides Mangla and Tarbela dams, and its storage would be helpful for alleviating flood losses.
- The project is estimated to help alleviate acute irrigation shortage in the Indus basin irrigation system caused by progressive siltation of the existing reservoirs.
- It aims to reduce the intensity, quantum and duration of floods and reduce the magnitude and frequency of floods in the River Indus downstream.
Issues with the Dam
- The dam is located in the Gilgit-Baltistan region which is an Indian territory illegally occupied by Pakistan.
- India has consistently conveyed her protest and shared concerns with both China and Pakistan on all such projects in the Indian territories under Pakistan’s illegal occupation.
- In the past too, India has opposed projects jointly taken up by Pakistan and China in PoK as part of the China-Pakistan Economic Corridor.


The project is left with around 35 tmc ft water against the its full capacity of 215 tmc ft
AMARAVATI: The water level in Srisailam dam has dipped to near dead storage level. However, officials say there will be no shortage of drinking water during summer as water is stored in medium and minor tanks and reservoirs. The Srisailam project, which brimmed with water till January, is now nearly empty as there were no inflows into the reservoir in the last few months. The project is left with around 35 tmc ft water against the its full capacity of 215 tmc ft.
Water overflowed from the Srisailam project during the last monsoon season and the authorities were compelled to release water by lifting the crest gates. The project was packed with water for several months in 2020 thanks to the abundant rains in the catchment upstream.


Longtan is a 6,300MW hydro power project. It is located on Hongshui river/basin in Guangxi Zhuang Autonomous Region, China. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in multiple phases. The project construction commenced in 2001 and subsequently entered into commercial operation in 2007. Buy the profile here.
The project was developed by Longtan Hydropower Develop. China Datang, Guangxi Investment Group and Guizhou Development and Investment are currently owning the project having ownership stake of 65%, 30% and 5% respectively.
Longtan is a reservoir based project. The hydro reservoir capacity is 16,210 million cubic meter. The gross head of the project is 179m.
Longtan (Longtan II) consists of 2 units of francis turbines with 700MW nameplate capacity.
The Longtan (Longtan II) has 2 electric generators installed at the site.
The project construction commenced in 2001 and subsequently entered into commercial operation in 2007.
Power purchase agreement
The power generated from the project is sold to China Southern Power Grid under a power purchase agreement.
Longtan (Longtan I) is equipped with Voith Hydro Shanghai francis turbines. The phase consists of 7 turbines with 700MW nameplate capacity.
GE Power supplied 7 electric generators for the Longtan (Longtan I). The generator capacity is 778 MVA.
For more details on Longtan, buy the profile here.


Modeling the hydrodynamic interactions between the main channel and the floodplain at McCarran Ranch in the lower Truckee River, Nevada
- 1State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
- 2College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
- 3Division of Hydrologic Sciences, Desert Research Institute, Las Vegas, 89119, USA
Abstract. This study applied the two-dimensional AdH (adaptive hydraulics) hydrodynamic model to a river reach to analyze flood hydraulics on complex floodplains. Using the AdH model combined with bathymetry and topographic data from the United States Geological Survey (USGS) seamless server and the United States Army Corps of Engineers (USACE), we intended to examine the interactions between the channel and floodplain of a 10 km stretch at McCarran Ranch, which is located at the lower Truckee River in Nevada. After calibrating the model, we tested the dependence of the modeling results on mesh density, input parameters, and time steps and compared the modeling results to the existing gauged data (both the discharge and water stage heights). Results show that the accuracy of prediction from the AdH model may decline slightly at higher discharges and water levels. The modeling results are more sensitive to the roughness coefficient of the main channel, which suggests that the model calibration should give priority to the main channel roughness. A detailed analysis of the floodwater dynamics was then conducted using the modeling approach to examine the hydraulic linkage between the main channel and floodplains. We found that large flood events could lead to a significantly higher proportion of total flow being routed through the floodplains. During peak discharges, a river channel diverted as much as 65 % of the total discharge into the floodplain. During the periods of overbank flow, the transboundary flux ratio was approximately 5 to 45 % of the total river discharge, which indicates substantial exchange between the main channel and floodplains. The results also showed that both the relations of the inundation area and volume versus the discharge exhibit an apparent looped curve form, which suggests that flood routing has an areal hysteresis effect on floodplains.


Variable Priority Flow Dividers
Aimed at mobile and industrial applications the VFD190 can be used for controlling hydraulic motor and cylinder speeds by manually adjusting the flow rate.
- Working Pressure (Max): Up to 420 bar (6000 psi)
- Total flow capacity: 190 lpm (50 USgpm)
- Material: Steel components in cast SG iron body painted black; aluminium knob
- Weight: 3.5 to 4.0Kg (7.7 to 8.8lbs)
- Mounting: Two bolt - M8 or 5/16”
- Clearly marked single-turn hand dial permits fast visual adjustments
Pressure compensated permitting both ‘Priority’ and ‘By-Pass’ to be used simultaneously at varying pressures without affecting the ‘Priority’ flow rate.


Vertical Sewage Pump
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1. The unique designe of double-channel impeller, spacious pump body, easy to pass solid objects, fiber is not easy to entangle, most suitable for the carriage of sewage.
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3. The pump has vertical structure, which occupies a small area; The impeller is installed directly on the motor shaft, without the coupling, the pump has short overall size ,simple structure, easy to maintain; Reasonable bearing configuration, short impeller cantilever, superior axial force balance structure, make the bearing and mechanical seal more reliable, and the pump runs smoothly, the vibration noise is small.
4. The pump is installed in a dry pump room for easy maintenance.
5. According to the needs of users, it can be equipped with an electric control cabinet and a liquid level float switch, which can not only automatically control the start and stop of the pump according to the change of the liquid level, without special supervision, but also ensure the safe and reliable operation of the motor, which is extremely convenient to use.
Related Key Words:
Vertical submersible pump，Vertical submersible sewage pump， Vertical sewage pump,etc.
Vertical Sewage Pump Structural Diagram
Vertical Sewage Pump Spectrum Diagram and Description


Highland Lakes Upper Dike, Massachusetts
Highland Lakes Upper Dike is on the Upper Highland Lake River in Hampshire County, Massachusetts and is used for recreation purposes. It has been been there since 1930. It is owned by Comm Of Mass - D E M.
Highland Lakes Upper Dike is of earthen construction, a gravity dam, rock fill. Its length is 350 feet. Its capacity is 750 acre feet. Normal storage is 414 acre feet. It drains an area of 0.9 square miles.
Lakes, Dams, and Recreational Facilities Near Highland Lakes Upper DikeUpper Highland Lakes Dam Lower Highland Lake Ashfield Pond Uppper Reservoir Lower West Whately Dam Northampton Reservoir Upper Dam Unquomonk Upper Reservoir Roaring Brook Dam Mountain Street Reservoir South Deerfield Water Supply Dam Mountian Street Reservoir Dikes Gardner Falls Diversion Canal/Forebay Gardners Falls West Cummington Reservoir Roberts Meadow Upper Reservoir Hallockville Lower Dam Hallockville Pond Roberts Meadow Reservoir Middle Dam Roberts Meadow Lower Reservoir Plainfield Pond Crooked Pond Fitzgerald Dam Knightville Reservoir Norwich Pond Knightville Dam Knightville Dam Greenfield Electric Light and Power Dam Shelburn Fire District Intake Tank Littleville Lake Mcleod Pond Wiley and Russell Dam Shelburne Falls Fire District Dam Rocke Hill Pond Adams Hill Storage Tank (nj) Turners Falls Canal - Right Dike Turners Falls Canal - Left Dike Cabot Station Cabot Spillway Littleville Lake Ashmere Lake
Bookmark this lake location.
Find other northcentral Connecticut area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


Swing Check Valve ENQUIRY! Categories: Check Valve, Swing Check Valve Tags: Non Return Valve, NRV Valve, Swing Check Valve Description Description Swing Check Valve is used in oil & gas supply and drainage systems. This valve can be installed at the water outlet of the pump or the water outlet pipe to prevent backflow of the medium. Features： The switch can be up to 100,000 times; Full flow area, low flow resistance; Less likely to accumulate debris; Simple structure and convenient maintenance. Principle： The sealing ring of this valve adopts the tilting design, and the closing time is short, which can reduce the water hammer pressure. Installation and Commissioning： This valve can be installed in sewage. For specific use, please consult Zeco Valve Group. Product scope, Standards & Materials Size Range: 2″~48″ Pressure Rating: 150LB~2500LB Face-to-Face Dimensions: AMSE B16.10, EN558-1 Flange End Dimension :AMSE B16.1/16.42, AS4087, EN1092-2 Inspection and Test: API 598 Part Material Standard Body WCB ASTM A216 Bonnet WCB ASTM A216 Disc WCB+13Cr ASTM A216 Seat A105+13Cr ASTM A105 Nuts 2H ASTM A194 Bolts B7 ASTM A193 For materials options not listed, consult the factory. Zeco manufactures valves in more than 50 different alloys. Related products High Temperature Check Valve Read more ENQUIRY! Pressure Seal Check Valve Read more ENQUIRY! Axial Check Valve Read more ENQUIRY!


Sealless Magnetic Drive Centrifugal Pumps - Metallic - API 610 and API 685 Series
The Pumps offered are for refineries and the petrochemical industry designed & developed with a range of Synchronous Magnetic Drives without shaft seals rated to match motor performance.
The construction of the pumps with Magnetic Drives eliminating the shaft seal guarantees that the pump is absolutely leak free and maintenance free in operation compared to the mechanical seal version.
The API Series covers the complete performance range of Single-Stage Centrifugal Pump, Multistage Pumps and pumps constructed for High Pressure operation are also available as special designs.
Pumps are constructed with single fully trapped gasket sealing.


In the early 70s TANZANIA ELECTRIC SUPPLY COMPANY LIMITED (TANESCO) embarked on implementation of the Great Ruaha Power Project (GRPP) which was implemented in three phases. Completion of the project represented a major hydroelectric development in Tanzania. The project was undertaken by Tanzania Electric Supply Company Limited (TANESCO), and the Swedish Consulting Group (SWECO) provided consulting services for the project.
Phase I (1970-1975)
Phase I of the project involved the construction of a 40m high and 350m long earth rock fill dam and an underground power plant at Kidatu installed with two generating units each with a capacity of 50MW totaling 100MW. The rock fill dam located about 10km upstream of the underground power house created a regulation reservoir for the plant with storage capacity of 125 million m3 and unlined headrace intake tunnel of 9.6km long down to the power station.
Phase II (1977-1981)
Phase II of the project consisted of additional installation of two 50MW units at Kidatu Hydro Plant, thus bringing the ultimate capacity of the plant to 200MW. However, it was realized that the Kidatu Reservoir volume was too small for annual regulation and for continuous operation of the four generating units. To take care of the water availability during the dry season of normal years as well as a series of dry years, adequate storage had to be provided upstream of Kidatu. It was from this reason the idea to construct a main storage dam about 170km upstream of Kidatu at Mtera was conceived.
Phase III (1984-1988)
Phase III of the project comprised the construction of an underground power plant at Mtera, installation of two generating units each of 40MW, totaling 80MW. Close to the dam there is a water intake for a short headrace tunnel and penstocks to the power house, before the water is discharged back via a long tailrace tunnel.
The Mtera dam and power station
- Mtera Dam is the largest dam in the country in terms of height, crest length and concrete volume. Its impounded reservoir is also the largest man-made lake in Tanzania. The Dam is also the road bridge between the Iringa and Dodoma regions and is part of the Great North Road (Cape Town to Cairo).
- The Mtera Dam is a concrete structure of the buttress type with crest level at 701.5 metres above sea level. The main tributaries to the dam are the Great Ruaha, Little Ruaha and Kisigo Rivers. The Dam was completed in December 1980 and was inaugurated by the late President Mwalimu J.K.Nyerere on 19th February 1981.
- Mtera Hydropower Plant has an installed capacity of 80MW. The power generation started in 22nd May 1988 for unit 1 and 7th December 1988 for unit 2 respectively.
Contract for the Works
For the construction of the Mtera Power Plant following Contracts were awarded during March, 1984.


World's Largest Floating Power Plant To Be Built In Madhya Pradesh
In Madhya Pradesh's Khandwa, a floating solar power plant will reportedly be built, which is capable of producing 600 MegaWatts of power, informed officials on August 3. The project is estimated to be worth Rs 3,000 crore, and will be the world's largest floating solar power plant. The dam will be built on the Omkareshwar dam on the Narmada river.
Tags: Omkareshwar dam, Narmada river, Madhya Pradesh, khandwa, Floating Solar Power Plant


HCMC – The Vietnam Electricity Group (EVN) is set to complete the construction of many key power generation and power grid projects this year to ensure the safe and stable supply of electricity to serve the country’s socioeconomic growth, reported Bnews news site.
EVN will complete the hydropower projects of Thuong Kon Tum and Da Nhim, the solar farm projects of Phuoc Thai 2 and 3 and the discharge gate cluster of the Bac Ai pumped-storage hydropower project.
It is also scheduled to break ground on four projects—the Hoa Binh hydropower plant expansion project, the thermal power projects of Quang Trach 1 and O Mon IV, the Ialy hydropower plant project and the Dung Quat Electricity Center project.
In addition, EVN will facilitate investment procedures for six major power generation projects— the Dung Quat I & II thermal power plants, the expansion of the Tri An hydropower plant, the O Mon III and Quang Trach II thermal power plants and the second phase of the Bac Ai pumped-storage hydropower plant.
Regarding power grid projects, EVN will step up efforts to complete the construction of 256 projects and begin work on 227 110-500kV projects, with a focus on key projects, including the 500kV Vung An-Doc Soi-Pleiku 2 transmission line, facilities releasing the power capacity of renewable energy projects and hydropower plants in the north.
According to Nguyen Tai Anh, vice general director of EVN, the State-run utility had invested in and put into operation many key power projects last year, which helped enhance the quality of power supply systems and release the power capacity of renewable energy projects.
For power grid projects, EVN and relevant units had started work on 175 projects and completed 164 110-500kV projects. Further, EVN’s Phuoc Thai 1 and Se San 4 solar farms had been put into service in 2020 as well.


Designed for regulating storage pressure to fill panels. Inlet pressure of 6000 psi. Outlet pressure 0-5000 psi. Equipped with wrench-tight CGA 677 nut and nipple. Equipped with two 2.5 in 10,000 psi pressure gauges; one reads storage pressure and one reads regulated pressure. The model 415 is a piston type, hand load regulator that uses an unbalanced poppet design for ruggedness and simplicity. There is a small variation of control pressure with changing inlet pressure as noted in the specifications. A 30 micron filter in the poppet cartridge helps prevent damage by contaminants.


President Jacob Zuma on Friday launched the more than R12.45-billion Mzimvubu water project, which would include the building of the Ntabelanga and Laleni dams, in the Eastern Cape.
The Ntabelanga dam, which would store about 490-million cubic metres of water, would be used for domestic and agricultural water supply requirements, while the Laleni dam would be used for hydropower generation. First water delivery would be in 2016.
Construction of the Ntabelanga dam, its associated works and infrastructure, bulk water conveyance infrastructure, infield farming infrastructure and the building of the Laleni hydropower scheme in 2016/17 aid job creation. “The project is expected to create about 6 700 jobs a year during the construction phase and 6 500 jobs [a year] during the operational phase,” Zuma said.
By: Leandi Kolver
Read the full article here: http://www.engineeringnews.co.za/article/mzimvubu-water-project-launched-2014-04-14/rep_id:3182


Australian Government Bureau of Meteorology, Tasmania
Minor Flood Warning for the River Derwent
Issued at 10:08 am on Friday 30 September 2016
Flood Warning Number: 2
Minor flooding may develop in the Ouse, Clyde and lower River Derwent during Friday. Strong rises have been observed in several rivers overnight Thursday.
In the 24 hours to 9AM Friday, widespread rainfall totals of 30 to 50mm were reported about the Derwent catchment, with the highest total of 98mm at Interlaken. Rainfall totals of 10 to 30mm are forecast for the lower Derwent catchment for the remainder of Friday, with higher totals possible about elevated areas.
Strong flows may be a hazard throughout the Derwent catchment for the next few days.
River Derwent above River Ouse:
River rises are expected in the upper reaches of the River Derwent above the River Ouse during Friday.
Minor flooding may occur along the River Ouse.The River Ouse at Ashton may exceed the minor flood level (2.40 m) Friday afternoon.
The River Ouse at Ouse may exceed the minor flood level (4.00 m) Friday afternoon.
Minor flooding is likely along the River Clyde.The River Clyde at Bothwell is currently at 1.50 metres and steady. The River Clyde at Bothwell is likely to exceed the minor flood level (2.00 m) Friday afternoon.
The River Clyde at Hamilton may exceed the minor flood level (2.40 m) Saturday afternoon.
River Derwent above Meadowbank Dam:
River rises are likely in the middle reaches of the River Derwent above Meadowbank Dam during Friday.
River rises are likely to occur in the Tyenna River during Friday.
River rises are likely in the Styx River during Friday.
River Derwent below Meadowbank Dam:
Minor flooding is likely along the River Derwent below Meadowbank Dam.The River Derwent below Meadowbank Dam is currently at 2.48 metres and steady. The River Derwent below Meadowbank Dam is likely to exceed the minor flood level (4.10 m) Friday afternoon. The river level may peak between 5.00 and 5.30 metres Saturday morning.
The River Derwent at Macquarie Plains is likely to exceed the minor flood level (4.00 m) during Saturday. The river level may peak between 3.90 and 4.20 metres Saturday morning.
River Derwent around New Norfolk:
Minor flooding may occur along the River Derwent around New Norfolk.The River Derwent at New Norfolk is currently at 1.10 metres and rising. The River Derwent at New Norfolk may reach the minor flood level (2.00 m) Saturday afternoon.
Flood Safety Advice:FloodSafe advice is available at www.ses.tas.gov.au
Road closure information is available at www.police.tas.gov.au
For emergency assistance call the SES on telephone number 132 500.
For life threatening situations, call 000 immediately.
Next Issue:The next warning will be issued by 5pm on Friday 30 September 2016.
Latest River Heights:
|Location||Height of River (m)||Tendency||Date/Time of Observation|
|River Derwent below Lake St Clair||0.74||Steady||10:30 PM THU 29/09/16|
|River Ouse at Ashton||1.51||Rising||09:00 AM FRI 30/09/16|
|River Ouse at 3B Weir||0.98||Rising||09:30 AM FRI 30/09/16|
|River Clyde at Bothwell||1.50||Steady||08:00 AM FRI 30/09/16|
|River Derwent below Meadowbank Dam||2.48||Steady||09:30 AM FRI 30/09/16|
|River Derwent at Macquarie Plains||1.35||Rising||09:33 AM FRI 30/09/16|
|Tyenna River at Newbury||0.98||Rising||08:15 AM FRI 30/09/16|
|Styx River at Bruces Bridge||1.55||Steady||07:34 AM FRI 30/09/16|
|River Derwent at New Norfolk||1.10||Steady||09:58 AM FRI 30/09/16|
This advice is also available by dialling 1300 659 216. Warning, rainfall and river information are available at www.bom.gov.au/tas/flood. The latest weather forecast is available at www.bom.gov.au/tas/forecasts.


HDL – Lupata Hydroelectric Power Plant 600 MW – Mozambique - Project Profile
"HDL – Lupata Hydroelectric Power Plant 600 MW – Mozambique - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
The "HDL – Lupata Hydroelectric Power Plant 600 MW – Mozambique - Project Profile" is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million and key contact details for project managers, owners, consultants, contractors and bidders.
Hidroeléctrica de Lupata S.A. (HDL), formed by a joint venture of Electricidade de Moçambique (EDM), Hydro parts Holding, Cazembe Holding and Sonipal de Moçambique is undertaking the Lupata Hydroelectric Power Plant project at Lupata in Mozambique.
The project involves the construction of a 600MW hydroelectric power plant. It also includes construction of a concrete rockfill dam of 500m wide and height of 40m with a reservoir of 208km2, powerhouse, Longitudinal Cofferdam, Spillways, Canals, substations, the installation of 4 Kaplan turbines of 150 MW (or 6 of 100 MW in Study), generators, transformers and the laying of transmission lines.
The construction work of the Lupata hydroelectric power plant will take place in four phases which include construction of cofferdam/diversion of the river course and the construction of the dam.
The first phase of work includes the construction of one longitudinal cofferdam in order to protect the excavation to enable the building of the infrastructure of concrete.
The second phase of work includes the construction of infrastructure and the beginning of the spillway excavation of the powerhouse, to locate them on the right bank of the river.
In the third stage, the cofferdam will be constructed on upstream and downstream and the longitudinal cofferdam will be removed. During this step the flow will be diverted to the unloader, thereby enabling the operations inherent in the next stage.
The fourth phase of works includes the construction of the dam in the river bed, the system of water supply and power plant on the right bank of the river.
Impacto, Projectos e Estudos Ambientais has been appointed as a pre-feasibility study consultant.
Hidroelectrica de Lupata, S.A formed by a joint venture of SONIPAL, ATP ENGENHARIA, LDA and ENAGOL -ENERGIAS DE ANGOLA, LDA has proposed the plan for the realization of the project.
The consortium will be responsible for technical, feasibility, economic, environmental impact studies and basic design preparation on the project.
Hydroparts Holding, Cazembe Holding, Electricidade de Moçambique (EDM), and Sonipal de Moçambique won the concession contract for the development of the project.
Due to the dry climate and the demand for water in irrigations, the intensity of water in the Zambezi river is decreasing which is leading to the revision of the generating capacity of the plant which is planned at 600 MW.
The development of the hydroelectric project also depends on success of Mozambique Backbone Transmission System (CESUL) project which is facing delay due to problems with its shareholders and financing structure.
Study activities are underway.Scope
The project involves the construction of a 600MW hydroelectric power plant at Lupata in Mozambique.
The US$1,072 million project also includes the following:
1. Construction of a dam of 500m wide and height of 40m
2. Construction of a powerhouse
3. Construction of Coffer Longitudinal
4. Construction of Unloader
5. Construction of cushions amount and downstream
6. Construction of Canals
7. Construction of a substation
8. Installation of 4 Kaplan turbines of 150 MW (or 6 of 100 MW in Study)
9. Installation of generators
10. Installation of transformers
11. Laying of transmission linesReasons To Buy
Learn how to effectively navigate the market research process to help guide your organization on the journey to success.Download eBook


Beginning Monday, Sept. 21, Ewing Trucking and Construction will begin construction of the Snowshoe drainage improvements project. This will consist of improved roadside ditch to increase capacity along Snowshoe Lane, culvert replacement at the intersections of Main Gore Drive/Snowshoe Lane and Main Gore Drive/Grouse Lane and under two private driveways along Main Gore Drive between Black Gore Drive and Grouse Lane.
Work will require a single lane closure. The project is scheduled to be completed by Oct. 31. The Town of Vail contact is Chad Salli, 970-376-2389.


The Tungabhadra Dam is constructed across the Tungabhadra River, a tributary of the Krishna River. The dam is near the town of Hospet in Karnataka. It is a multipurpose dam serving irrigation, electricity generation, flood control, etc. This is a joint project of erstwhile Hyderabad state and erstwhile Madras Presidency when the construction was started; later it became a joint project of Karnataka and Andhra Pradesh after its completion in 1953. The main architect of the dam was Dr Thirumala Iyengar, an engineer from Madras.


Linetype optimization and experiment on volute outlet passage in large pumping stations
Li Yanjun1,Yan Dengfeng2,Yan Hongqin3,Hu Deyi4,Feng Xusong5
(1.Technical and Research Center of Fluid Machinery Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;2.Yangzhou University,Yangzhou,Jiangsu 225009,China;3.Hydraulic Engineering Science and Technology Consultation Limited Company of Jiangsu Province,Nanjing,Jiangsu 210029,China;4.Shanghai Investigation,Design and Research Institute,Shanghai 200434,China;5.Jiangsu Water Supply Co Ltd,for East Route of South-to-North Water Diversion,Nanjing,Jiangsu 210029,China)
After optimum hydraulic design and model test with series of schemes,the major geometrical parameters with excellent hydraulic performances are obtained for the outlet volute passages of large pumping stations.The guide-water cone was optimized by hydraulic design,and the radius of the volute curvature was increased while the width of the outlet passages was not changed and the length of expansive channel was lengthened.With the ratio(10.27) of prototype and model,blade angle(-2°) and speed(1 400 r/min) remained unchanged,the highest efficiency of pump sets with the volute passage is over 78%,which has increased by 6% than before and has exceeded the level of vertical pump set with the commonly used structural types of inlet and outlet passages.
LI Yan-Jun,YAN Deng-Feng, Yan-Hong-Qin et al. Linetype optimization and experiment on volute outlet passage in large pumping stations[J]. Journal of Drainage and Irrigation Machinery Engin, 2009, 27(1): 39-42.
仇宝云,黄季艳,袁寿其,等.南水北调东线工程水泵机组结构选择[J].机械工程学报,2003,39(1):69-73.Qiu Baoyun,Huang Jiyan,Yuan Shouqi,et al.Structure selection of pump units of south-to-north water transfer project in the east of China[J].Chinese Journal of Mechanical Engineering,2003,39(1):69-73.(in Chinese)
张仁田.南水北调工程中大型泵站泵型选择的若干问题[J].水力发电学报,2003(4):119-127.Zhang Rentian.Key issues in the selection of pumps and their systems for the project of water transferring from south to north in China[J].Journal of Hydroelectric Engineering,2003(4):119-127.(in Chinese)
Constantinescu G S,Patel V C.Numerical model for simulation of pump-intake flow and vortices[J].Journal of Hydraulic Engineering,1998,124(2):123-134.
Constantinescu G S,Patel V C.Role of turbulence model in prediction of pump-bay vortices[J].Journal of Hydraulic Engineering,2000,126(5):387-391.
Jiahong Guo,Hongxun Chen,Jiarong Lu.Numerical method for simulation of three dimensional flow in outlet passage of pump station[J].Key Engineering Materials,2003,243-244:237-242.
陶海坤,祝宝山,曹树良,等.钟形进水流道吸水室后壁的优化设计[J].江苏大学学报:自然科学版,2007,28(3):228-231.Tao Haikun,Zhu Baoshan,Cao Shuliang,et al.Optimization design for back-wall shape of bell-like inlet passage in mixed-flow pump[J].Journal of Jiangsu University:Natural Science Edition,2007,28(3):228-231.(in Chinese)
陆林广,吴开平,冷豫,等.泵站出水流道模型水力损失的测试[J].排灌机械,2005,23(5):23-26.Lu Linguang,Wu Kaiping,Leng Yu,et al.Measurement for hydraulic loss of outlet conduit of pumping station[J].Drainage and Irrigation Machinery,2005,23(5):23-26.(in Chinese)


Research on Power Adaptive Control Method for Hydraulic Motor Grader Based on Simulink/AMESim
A method of power adaptive control for hydraulic motor graders is provided, including the dynamic regulation methods of pump and motor and realization algorithms related. The simulation models of hydraulic transmission system and the control system are established in AMESim and Simulink respectively. By using these two softwares, the models are co-simulated. The co-simulation results verify the feasibility and effectiveness of the control system.
Robin G. Qiu and Yongfeng Ju
R. Y. Zhao and X. Wang, "Research on Power Adaptive Control Method for Hydraulic Motor Grader Based on Simulink/AMESim", Applied Mechanics and Materials, Vols. 135-136, pp. 793-799, 2012


Coffey Water is pleased to commence the refurbishment and upgrade of the Mohill and Manorhamilton Wastewater treatment plants. The contract consists of the design and construction of upgrades to the existing plants to improve each plants performance.
The main scope of the works consists of:
- Design and construction of new stormwater retention tanks at both sites.
- Installation of new wastewater screening equipment.
- Decommissioning of existing inefficient Aeration equipment and installation of new Fine Bubble Diffused Aeration grids at both sites.
- Installation of new process control equipment and telemetry systems at both sites.
- Construction of sludge treatment/ thickening at Mohill WWTP.
- Commissioning and testing of the upgraded wastewater treatment plants.
- Operation of both sites for 1 year.
We are pleased to be engaged for this upgrade which will help improve the capacity and performance of Mohill and Manorhamilton WwTP.


Alert for Lexington; Richland (South Carolina) Issued by the National Weather Service
- Flood Advisory
- Lexington; Richland
...The Flood Advisory continues for the Congaree River...
Congaree River At Columbia affecting Lexington and Richland
.Upstream reservoir operations continue to produce fluctuations
along the Congaree River at Columbia. The river will fluctuate
around advisory stage through Saturday.
The Flood Advisory continues for
The Congaree River At Columbia.
* until Saturday morning.
* At 8 PM Friday the stage was 8.7 feet.
* Flood stage is 19.0 feet.
* Forecast...The river will rise to crest at 10.6 feet tomorrow
* Advisory stage is 10.0 feet.
* At 10.0 feet...Flooding occurs in flood prone areas near and
downstream from Columbia. Flooding also occurs on parts of the
Cayce and West Columbia river walk.
Instruction: A Flood Advisory means that nuisance flooding may occur nearest the
river when the level is below the official flood stage.


1. As the channel within the valve is in streamline form, the flow resistance is smaller than lifting check valve, it's suitable for low flow large-caliber application without frequently change in flow. However, it's not suitable for pulsating flow for sealing performance poorer than lifting check valve.
2. Swing check valve is suitable for various operating conditions of pipeline for petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry.
3. Swing check valve is suitable for clean medium like water, oil, steam, acid medium, and not suitable for medium with solid particles and great viscosity.


Smith-Midland supplys insulated electrical building for Loudoun dam project
Loudoun Water’s renovation project of the Beaverdam Creek Reservoir dam included an insulated sandwich panel electrical building from Smith-Midland.
The 12′ x 20′ x 12′ all-precast concrete Easi-Set Building was manufactured and installed by Smith-Midland for the Thalle Construction Company.
The dam renovation project in Loudoun County, VA near Ashburn included phased excavation, diversion of water, construction of a new concrete spillway, embankment improvements, control tower modifications, a new transfer pump station & electrical building, improved drainage systems, instrumentation and controls improvements, and a permanent stream crossing.
Or call: (540) 439-3266


Monobloc AQUALLICE B-WaterClean range
Monoblocs for above-ground pools, with two filter options: 300 mm or 400 mm diameter and with two pump options: 0.25 hp and 0.35 hp.
Blown-in filter with strainer and 7-position selector valve with pressure gauge.
Connection for 32-38 mm hoses
Filter pump with pre-filter included.
Working pressure 2 bar


Southerly WWTP Primary Clarifier Improvements
City of Columbus
This project consisted of the demolition and rehabilitation of sixteen existing aeration tanks, conversion to step-feed aeration and the installation of a fine bubble diffuser system. The work also included the construction of two new primary clarifiers as well as 2 three-million gallon aeration tanks in addition to site work, concrete rehabilitation, process piping, construction of a new pump station and other items. By the end of the project, over 19,000 cubic yards of concrete had been used for the structures.


« View county listFlood Warning
837 PM CST FRI FEB 24 2017
The Flood Warning continues for the Guadalupe River Near Bloomington.
* Until Saturday evening...or until the warning is cancelled.
* At 8:00 PM Friday the stage was 21.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 20.0 feet.
* Forecast: The river will continue to fall to below flood stage by
* At 20.0 feet Minor lowland flooding occurs, with the flow reaching
the right flood plain near the Invista Plant near Bloomington.
Downstream above Highway 35, the flow escapes into the left flood
plain cutting off the lowest homes.
Below are the latest river stages and stage forecasts:
FLD LATEST FORECAST 6 AM LST
LOCATION STG STG DAY TIME Sat Sun Mon Tue Wed
Bloomington 20 21.0 Fri 08 PM 20.0 17.6 16.7 16.7 16.0
LAT...LON 2869 9704 2869 9698 2867 9695 2857 9688
2845 9680 2843 9685


Texas Water Development Board approves $980,000 to the Town of Anthony (El Paso County) for water system improvements
For immediate release. Contact: Kimberly Leggett at 512-463-5129
AUSTIN – (September 22, 2016) – The Texas Water Development Board (TWDB) today approved by resolution financial assistance in the amount of $980,000 from the Drinking Water State Revolving Fund to the Town of Anthony (El Paso County). The Town will use the assistance to finance water system improvements.
The Town could save approximately $208,000 over the life of the loan by using the Drinking Water State Revolving Fund.
With the assistance approved today, the Town will be able to design and construct a new water well. The TWDB previously provided the Town with over $1 million in financial assistance for earlier stages of this project.
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.


RS&H was responsible for engineering and design of airfield civil items associated with the new runway program and design and permitting of all major drainage elements of the runway program. Work included clearing and grubbing, drainage conveyance system, and embankment material in areas required for the construction of Runway 6R-24L and associated features. RS&H was responsible for hydrologic and hydraulic storm water design and erosion and sediment control design. RS&H performed a watershed analysis of entire Airport for existing and future conditions and coordinated with regulatory agencies for environmental resource permit. RS&H performed an analysis of groundwater elevations and hydraulic grade lines to determine proposed runway grades. We assisted in the development of design solutions and and associated permit applications.