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| News |
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| Eastside Headworks Improvement Part B Contract 3 |
January 2, 2010 |
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Project: Eastside Headworks Improvement Part B Contract 3
Owner: City of Dallas
Contract Value: $94,700,000.00
Overview: This project entails construction of clear-wells, deep concrete flumes, and junction structures. Construction phasing and coordination with the plant operations is critical due to the existing undersized clear-wells that must remain in operation while constructing around them and then demolition of these facilities and for construction of the remaining clear-wells and deepest flumes. The concrete flumes range in size from 10'X10' to 12'X12' inside dimensions and are to be constructed at up to 45 feet total depth. The junction structures are equipped with slide gates for flow control and are to be constructed of 48'-6" walls. The clear-wells are to be constructed of wire-wound pre-stressed concrete. These 15.625 million gallon storage tanks will be the largest tanks constructed by this method in the world. With a total construction cost of $94.77 million and a 3 year construction schedule, this project, along with the upgrades to filtration and distribution pump stations will be the largest expansion for Dallas Water Utilities to date. Following the completion of this group of projects, the East Side Water Treatment Plant will be rated at 540.
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| Medical District Water Distribution System Improvements |
December 10, 2009 |
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Project: Medical District Water Distribution System Improvements
Owner: City of Fort Worth Water Department
Overview: This improvement for the Medical District services in Fort Worth, TX consists of close to 8,000 linear feet of water line ranging from 42" to 8" as well as over 2,000 linear feet of sanitary sewer line ranging from 30" to 8" pipe.
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| Twin 72 Inch Sewer Main Replacement |
December 10, 2009 |
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Project: Twin 72 Inch Sewer Main Replacement
Owner: San Antonio Water Systems
Overview: Approximately 22,500 linear feet of 72" slipline, 2900 linear feet of 84" opencut along and new odor control facility.
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| Southeast Interceptor Phase 1 |
December 10, 2009 |
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Project: Southeast Interceptor Phase 1
Owner: City of North Las Vegas, North Las Vegas, Nevada
Overview: Approximately 16,500 linear feet of 66" and 72" pipe and associated items with depths up to 40 feet as well as approximately 30,000 square feet of asphalt paving.
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| McAlpine Headworks Improvements |
October 13, 2009 |
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Project: McAlpine Headworks Improvements
Owner: Charlotte-Mecklenburg Utilities District
Contract Value: $11,802,918.86
Overview: The work generally consists of the construction of approximately 17,700 linear feet of 72" and 66" Hobas pipe for an interceptor sewer with 32 manholes, stream crossings, utility coordination, miscellaneous appurtenances, and work associated with the sewer outfall.
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| Eastside WTP Expansion - Part A Headworks & Chemical Improvements |
July 16, 2009 |
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Project: Eastside WTP Expansion - Part A Headworks & Chemical Improvements
Owner: City of Dallas
Contract Value: $45,070,450.00
Overview: This improvement consists of 15,000 yards of concrete with 120,000 LF pipe ranging in diameter from 3/4" to 84". Additional improvements include new rapid mix basins, chemical buildings and feed systems and new electrical work. Demolition and relocation of existing facilities and buildings is also required of this improvement project.
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| Intake No. 3 Connector Tunnel |
May 7, 2009 |
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Project: Intake No. 3 Connector Tunnel
Owner: Southern Nevada Water Authority
Contract Value: $42,300,000.00
Overview: This project consists of a 451 lf deep shaft and 2200 lf of 16 ft. through 20 ft. diameter tunnel.
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| Bi-County Water Tunnel |
March 24, 2009 |
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Project: Bi-County Water Tunnel
Owner: Washington Suburban Sanitary Commission
Contract Value: $112,545,414.00
Overview: TBM Excavation of 27,600 lf of 120-inch diameter deep rock tunnel through bedrock at depths ranging from 180 to 300 feet deep. Installation, welding and backfill grouting of 84-inch diameter steel water main. Construction of three shafts. Launch shaft - 40 ft diameter, 180 ft deep. Intermediate shaft -16 ft diameter, 150 ft deep. Retrieval shaft - 25 ft diameter, 125 ft deep.
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| Tarrant County Transfer Service Main |
September 26, 2008 |
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Project: Tarrant County Transfer Service Main
Owner: Trinity River Authority of Texas
Contract Value: 19,871,000.00
Overview: The project includes 24,952 linear feet of 60-inch pipeline; 3,935 linear feet of 36-inch pipeline; 2,308 linear feet of 30-inch pipeline; 10,000 square feet of paving; and two new meter stations.
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| Perris Valley Pipeline |
September 19, 2008 |
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Project: Perris Valley Pipeline
Owner: Metropolitan Water District of Southern California
Contract Value: $22,300,000.00
Overview: The project consists of constructing approximately 21,120 linear feet of 97-inch diameter fabricated steel pipeline with Type B coating; approximately 1,416 linear feet of pipe installation by tunneling; constructing approximately 116 linear feet of 48-inch, and 190 linear feet of 30-inch diameter coated welded steel pipe, 36-inch and 20-inch diameter stainless steel pipe and a 48-inch butterfly valve.
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| West Fork Relief Interceptor, WF-11B |
September 15, 2008 |
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Project: West Fork Relief Interceptor, WF-11B
Owner: Trinity River Authority of Texas
Contract Value: $19,643,000.00
Overview: The project consists of the construction of 5,988 linear feet of 90-inch diameter sanitary sewer pipe, 5,162 linear feet of 84-inch diameter sanitary sewer pipe, 3,818 linear feet of 78-inch diameter sanitary sewer pipe, a siphon beneath the Trinity River consisting of 441 linear feet of a 30-inch, 42-inch, and a 48-inch diameter sanitary sewer, 2 junction boxes, 2 siphon boxes, 6 sanitary sewer meter stations and appurtenances, and drainage improvements, including the replacement of 45 linear feet of an existing 54-inch reinforced concrete storm sewer along with the construction of 155 cubic yards of concrete drainage flume. Erosion control structures consisting of gabion baskets and mattresses, concrete beams, drilled piers, and tiebacks will be constructed at the storm drain outfall and along 1600 linear feet at the downstream end of the project.
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| Kings Grant Rocky River Parallel Interceptor |
January 24, 2008 |
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Project: Kings Grant Rocky River Parallel Interceptor
Owner: Water and Sewer Authority of Cabarrus County
Contract Value: $13,077,075.00
Overview: This project consists of approximately 3,900 lf of 54" pipe and 20,250 lf of 48" parallel interceptor.
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| Reuse Pipeline and Diffuser to Lake Lanier Contract 3 |
December 11, 2007 |
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Project: Reuse Pipeline and Diffuser to Lake Lanier Contract 3
Owner: Gwinnett County
Contract Value: $25,085,000
Overview: This project consists of approximately 5,800 lf of 72" off-shore reuse steel pipeline, approximately 720 lf of diffuser varying in diameter from 72" to 36"/ Appoximately 400 lf of 54"/36"/24" on-shore water reuse pipeline and associated appurtenances.
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| Southeast Water Purification Plant-Phase 1-80 MGD Expansion |
November 29, 2007 |
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Project: Southeast Water Purification Plant-Phase 1-80 MGD Expansion
Owner: City of Houston
Contract Value: $168,276,100.00
Overview: This project is a joint venture with Pepper Lawson, Inc. This project consists of construction of 80 MGD surface water treatment plant expansion in Houston, TX. Work consists of: installation of 10,000 lf of buried piping, construction of 2 parallel raw water lines and metering stations to feed the proposed Treatment Module 2, construction of 2 flash mixing chambers, construction of 4 flocculation/sediment treatment trains, construction of 7 new filters including backwash and air scour system. Construction of new Backwash waste pump station no. 2 and renovation of pump station no. 1. Construction of new Transfer Pump Station No. 2 and modificiations to station no. 1. Construction of one 13.4 MG ground storage tank. Installation of circular baffles and replacement of existing high service pumps. Construction of new Chemical feed building No. 2, expansion of sludge thickening facilities, construction of electrical/control complex, installation of power monitoring system, installation of ATO for existing switchgear MVS-2. Installation of SCADA system, security system, temporary field office facilities and site work.
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| Mountain Creek Subsystem MC-5 & MC-6 Interceptor Project Phase 1A |
July 27, 2007 |
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Project: Mountain Creek Subsystem MC-5 & MC-6 Interceptor Project Phase 1A
Owner: Trinity River Authority
Contract Value: $13,348,000.00
Overview: This project consists of construction of sanitary sewer pipeline including, 12,770 lf of 96" diameter pipe, 1200 lf of 126" tunnel and 280 lf of 96" pipe jacking. Installation of 3 junction boxes and a new sanitary sewer meter station with flow meter. Installation of manholes and associated appurtenances. This project has depths of over 55 ft.
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| I-430 Bridge |
February 20, 2006 |
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Project: I-430 Bridge
Owner: Central Arkansas Water
Contract Value: $6,405,930.00
Overview: Approximately 8800 LF of 30" pipe installation connecting to Murray Lake Bridge on I-430 in Little Rock Arkansas.
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