American Basin Fish Screen and Habitat Improvements

Am BasinReplacement 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

CJ StrikeRehabilitate 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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Design-Build WSA Upgrade 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: Undisclosed
  • Cost: $9,475,000
  • Owner: USACE
  • Designer: Tetra Tech / WJA
  • Construction Period: 11/2012 – 11/2014

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


Emmett WWTP Secondary Treatment Repairs

Emmett 1Construct three new concrete aeration basins and clarifiers, two scum skimmers, influent splitter box, effluent weir, and power/controls, install two pre-purchased collector mechanisms and owner supplied aeration piping, clarifier equipment, gates, valves, wiring, and controls. 

  • Location: Emmett, ID
  • Cost: $1,726,000
  • Owner: City of Emmett
  • Designer: Brown and Caldwell
  • Construction Period: 07/2013 - 02/2014

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Blue Lakes Trout Hatchery Water Supply Pipeline Replacement

Construct new concrete water intake structure on Alpheus Creek and concrete discharge structure at the Blue Lakes Fish Farm, install 1840 foot (±) 60” HDPE pipeline (200 cfs), fittings, screens, safety devices and equipment, roads and civil site work.

  • Location: Twin Falls, ID
  • Cost: $1,000,000
  • Owner: Blue Lakes Fish Farm
  • Designer: MWH Engineers
  • Construction Period: 04/2013 - 10/2013

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Big Sandy Wastewater Improvements (Phases 2 and 3)

Construct new lined primary lagoon cell and storage lagoons, aeration and UV disinfection building, install aeration and UV disinfection equipment, force main and sanitary sewer main, pivot irrigation system, fencing, mechanical and electrical.

  • Location: Big Sandy, MT
  • Cost: $3,286,000
  • Owner: City of Big Sandy
  • Designer: Stelling Engineers, Inc
  • Construction Period: 04/2013 - 11/2013

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