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.

  • Cost: $47,718,815
  • Owner: USACE St. Paul District
  • Designer: USACE St. Paul District
  • Construction Period: 06/2011 - 10/2013

Minidoka Dam Modifications

Construct a south gated spillway,  north and south mass concrete dikes, north and south side canal headworks, north and south mass concrete overflow spillways, and modify the existing north gated spillway.  The spillway dike is 2,000 feet long, the 3 radial gate structures contain 16 radial gates each 20’ wide and 20’ to 24’ tall.  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.

  • Cost: $24,968,807
  • Owner: Bureau of Reclamation (USBR)
  • Designer: USBR
  • Construction Period: 09/2011 – 03/2015

CJ Strike Bridge

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


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

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.


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

Rehabilitate Mores Creek Bridge

Rehabilitate Pier 4 footing (including pressure grouting and rock armoring), expansion joint and bridge deck, install guardrail,  bridge railing,  seismic restrainers, bearing cap extension, and paint steel truss superstructure.


  • Cost: $3,200,000
  • Owner: ITD
  • Designer: HDR
  • Construction Period: 10/2011 - 11/2011

Arrowrock Dam Outlet Works Rehabilitation

Arrowrock Dam 01Construct a new gatehouse structure, control building, access stairway, and hydraulic control system,  install new steel liners in  existing concrete conduits, remove ten 58″ existing ensign valves,  fabricate and install  seven (7) 48” and three (3) 66” clamshell gates, install gate guides, trashracks,  bulkhead stoplogs, bubbler deicing system and other ancillary work.

  • Cost: $11,589,000
  • Owner: USBR
  • Designer: USBR
  • Construction Period: 08/2001 - 04/2004

Deer Flat Dam Outlet Works Rehabilitation

Excavate into earth embankment dam and emergency berm at the Caldwell outlet works to demo, remove and replace the existing concrete outlet structure. Work included installing sheet pile cut off wall, and new earth embankment section. Constructing, furnishing, and installing of deepwell dewatering system and new electrical supply system for gate operation in outlet works. Excavate the Nampa outlet conduit to construct a new conduit and toe drain pipe, modify the filter collar, and plug one conduit.


  • Cost: $6,487,000
  • Owner: Bureau of Reclamation
  • Designer: Bureau of Reclamation
  • Construction Period: 11/2007 - 02/2009

Cole to Broadway Soundwalls

05 Final Grading


Construct a precast concrete panel soundwall on three separate segments of Interstate 84 from Cole Rd. to Broadway Ave westbound, includes over 10,000 LF of drilled shaft foundations 16′ to 28′ deep and 4000 CY of reinforced concrete to support the precast soundwall post and panel system, property restoration, cast-in-place guard rails, final grading and paving. 


  • Cost: $9,534,000
  • Owner: ITD
  • Designer: ITD
  • Construction Period: 03/2008 - 01/2009

Eagle State Fish Hatchery


Construct a new incubation and early rearing facility for the Captive Redfish Lake Sockeye Salmon, includes a new 19,110sf rearing building, well water collection improvements, site piping, site paving and civil improvements.


  • Cost: $3,297,000
  • Owner: Idaho Department of Fish & Game
  • Designer: MWH
  • Construction Period: 09/2007 - 05/2008