Process Water Treatment & Return Plant Phase I & II

20140414 Final Completion 2Phase I – Install concrete including building, tanks, footings, walls, slabs, equipment pads, sidewalks, and exterior pads, mechanical process piping and plumbing and supply  two metal buildings. Phase II – Install plumbing, process mechanical equipment, process piping, valves and fittings for the Blancher Surge, Primary Clarifier Scum Overflow, Centrifuge Building  and Screen Building Systems.

  • Location: Caldwell, ID
  • Cost: 6,086,000
  • Owner: Private
  • Designer: CDM Constructors, inc
  • Construction Period: 06/2012 – 06/2014

Highway 10 Pump Station

Furnish and install a waste water pump station including a cast-in-place concrete dry/wet well tank built within a 32-ft deep excavation, and an above-ground building with cast-in-place foundation walls and slab-on-grade base to support the precast-panelized walls and roof. The building includes a pump room with sewage pumps, controls, piping, electrical, and a 23-ft steel stair tower to access the deep pump room.

  • Location: Dickinson, ND
  • Cost: 3,564,400
  • Owner: Dakota Prairie Refining, LLC
  • Designer: Bartlett & West
  • Construction Period: 04/2014 – 11/2014

West Boise WWTF Phosphorus Removal

Final WB WWTP (1)

New thickening facility that includes fermentation tanks, polymer preparation, sludge thickening, and sludge pumping. Installation of (4) rotary screen thickener units procured by owner. Construct a new waste activated sludge orthophosphate release facility. Convert the existing aeration basins to provide enhanced biological phosphorus removal. Modify the existing ferrous chloride pump. Updgrade the existing primary clarifiers and add a fourth RAS pump to the existing south plant RAS pump station. Replace the existing south plant RAS pipeline and interconnecting the south plant and north plant.

  • Location: Boise, ID
  • Cost: 15,594,385
  • Owner: City of Boise
  • Designer: CH2MHill
  • Construction Period: 09/2013 – 09/2015

American Basin Fish Screen and Habitat Improvements

Replacement of a  new river intake facility; consisting of a fish screen and a 150 CFS pumping plant on the Sacramento River.  Components of the project include: demolition of the existing pumping plant and associated piping, pile supported metal structure with deck, access road from Garden Highway to plant and control enclosure, fish screens and cleaning system, Two (2) 350-hp vertical mixed flow irrigation pumps with adjustable frequency drives, three (3) welded steel pipelines between the pumps  and an existing standpipe on the river side of the highway, control enclosure, and miscellaneous auxiliary equipment and site improvements.

  • Location: Rio Linda, CA
  • Cost: 6,526,568
  • Owner: Natomas Mutual Water Company
  • Designer: CH2MHill
  • Construction Period: 06/2014 – 11/2014

 

CJ Strike Bridge

Rehabilitate a 565’ pre-stressed, pre-cast, concrete-panel bridge with 22 individual spans,  concrete abutments and 21 steel bents.

 

  • Location: Grandview, ID
  • Cost: 1,320,383
  • Owner: Idaho Power Company
  • Designer: JUB
  • Construction Period: 03/2014 – 07/2014

American Falls WWTP Improvements

A Falls Cells 2Demolish the RBC building, primary and secondary sludge pump stations, primary and secondary clarifiers, trickling filter, sludge drying beds, miscellaneous piping, equipment and ancillary structures. Construct new headworks building, membrane bioreactor building (MBR), process building and basins, and solids handling building.

 

  • Location: American Falls, ID
  • Cost: $12,376,000
  • Owner: City of American Falls
  • Designer: Keller Associates
  • Construction Period: 01/2012 - 12/2013

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Minidoka Dam Modifications

Minidoka 6 South Gated Spillway Cell with GateConstruct new south gated spillway, new north and south roller-compacted concrete (RCC) dikes, new north and south side canal headworks, north and south RCC overflow spillways, and modify the existing north gated spillway. Demolish the existing overflow spillway and canal headworks; excavate foundations, spillway approach channel, and spillway outlet channel, install government-furnished radial gates, gate hoists, and associated equipment; furnish and install fencing, gates, railing, stairs, and gantry crane and associated rails.

 

  • Location: Minidoka Project, ID
  • Cost: $21,478,000
  • Owner: Bureau of Reclamation (USBR)
  • Designer: USBR
  • Construction Period: 09/2011 – 03/2015

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Devils Lake Flood Risk Management Phase 2B Embankments

Pipes with BuildingRaise the existing embankments along Devils Lake from elevation 1461.2 to 1468.2, construct  a new interior drainage pump station/gatewell, and remove  and demolish the existing pump station. The new pump station work consists of structural headwall with 72” diameter inlet piping capable of discharging 280,000 GPM through eight 42” HDPE discharge lines connected to a gatewell structure 15’ below the lake surface constructed within an earthen cofferdam consisting of 650 ft of driven piles 300 feet into the lake. Other construction items include new primary and secondary power transformers and ductbank, elevated concrete deck with steel joist and deck for pump station electrical components and pumps, automated grease lubrication system for main pumps, 72” electrically actuated steel gates, 10-ton bridge crane, and overhead suspended rake system for solids collection.

  • Location: Devils Lake, ND
  • Cost: $42,568,000
  • Owner: USACE St. Paul District
  • Designer: USACE St. Paul District
  • Construction Period: 06/2011 - 10/2013

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WSA Upgrade

WSA RenderingDesign-Build Weapons Storage Area – Phase 2     Design and construct three earth-covered precast concrete munitions storage modules,  a one-half munitions storage module, a new CMU munitions maintenance and handling facility and a munitions holding pad.

  • Location: Malmstrom AFB, MT
  • Cost: $9,475,000
  • Owner: USACE
  • Designer: Tetra Tech
  • Construction Period: 11/2012 – 11/2014

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Renwick Dam Rehabilitation Phase 2

Renwick Dam Oct 2014 (1)

Excavate downstream side of dam for footing of spillway retaining walls and drain system. Construct a 500′  spillway of air entrained roller compacted concrete (AERCC) with cast-in-place spillway retaining walls.
  • Location: Pembina County, ND
  • Cost: $7,380,000
  • Owner: Natural Resource Conservation Service (NRCS)
  • Designer: NRCS
  • Construction Period: 09/2012 – 08/2014