Tank 1B Improvements

Construct a two-million-gallon prestressed concrete water storage reservoir, overflow pond, and site improvements, and connect the reservoir to the existing water distribution system. Project includes significant blasting and rock removal.

  • Cost: $3,172,700
  • Owner: City of Mountain Home
  • Designer: Keller Associates
  • Construction Period: 09/2018 - 05/2019

Fall Creek Fish Facility

Construct a new adult fish collection facility, upgrade and tie in to the existing fish facility to comply with current environmental criteria, and provide a safe working environment for the end user. This effort includes a new concrete fish ladder, pre-sort structure, fish crowder, transport flumes, anesthetic tank, recovery tank, false weir, brail assembly, head box dewatering flume, post-sort structure, pre-engineered steel structure & independent mezzanine with lower access platform, installation of complex mechanical systems, tie in of large diameter carbon steel water supply and return piping, fish handling equipment, demolition and modification of the existing fish ladder, associated electrical installations, asphalt/concrete paving, and landscaping.

  • Cost: $14,336,488
  • Owner: USACE Portland District
  • Designer: USACE Portland District
  • Construction Period: 08/2016 - 07/2018

Replace Moose Wastewater and Address Critical Water Systems

taggart tankConstruct a new 60,000-GPD membrane biological reactor (MBR) activated sludge WWTP includes temporary lift station, new force main and gravity piping and demolish existing WWTP.  Also, construct a new Water Treatment System and  infrastructure including two  wells; a Well House building with electrical and chemical treatment rooms; 300,000 gallon buried concrete water storage tank; install over 20,000-LF of 12-inch and 8-inch water transmission main, electrical, SCADA and fiber conduits; and demolish existing water system infrastructure, well house, tanks and utility vaults.

  • Location: Grand Teton National Park
  • Cost: $12,708,451
  • Owner: National Park Service
  • Designer: National Park Service
  • Construction Period: 09/2016 - 03/2018

Idaho Falls WWTP Primary Treatment Improvements

DCIM100MEDIADJI_0405.JPGConstruct new primary sludge and scum submersible pumping stations, 115-foot primary clarifier with rake arm, covered primary sludge gravity thickener with odor control, thickened sludge pumping station, influent flow diversion and CIP rock trap structures. Upgrade 115-foot primary clarifier including new influent line, rake arm mechanism and walkway. Expand and modify electrical, instrumentation and controls. Install primary sludge de-gritting equipment, yard piping, earthwork and site improvements. Demolish primary sludge pumping station and grit removal facility.

  • Cost: $10,354,000
  • Owner: City of Idaho Falls
  • Designer: Murray Smith and Associates
  • Construction Period: 06/2017 - 01/2019

SH-3 St Joe River & St Maries RR Bridges

Replace existing bridges with new structures to meet current loading criteria, geometric standards, as well as pedestrian and ADA requirements. Work includes roadway reconstruction and shoulder widening at the north and south ends of the bridges, along with driveway and approach work, to provide proper tie-in and modifications to the Railroad Ave ramp.

  • Cost: $17,315,800
  • Owner: Idaho Transportation Department
  • Designer: J-U-B
  • Construction Period: 07/2017 - 06/2019

Manning Crevice Bridge Replacement

Manning CreviceCM/GC project to replace a 300’+ span double tower cable-stayed, suspension, vehicular bridge over the Salmon river with a single tower cable-stayed, suspension bridge.


  • Cost: $9,640,000
  • Owner: WFHL
  • Designer: Atkins
  • Construction Period: 06/14 - 05/18

Caldwell WWTP Filter Building

Construct a new tertiary gravity Filter Building, new Secondary Effluent Pump Station, and Utility Water/Backwash Pump Station to expand plant treatment 8.5 MGD. Project includes yard piping, site improvements, landscaping, electrical, instrumentation and controls, testing, commissioning and startup, demolition of existing infrastructure, dewatering, excavation, backfill and earthwork.

  • Location: Caldwell, Idaho
  • Cost: $12,337,260
  • Owner: City of Caldwell
  • Designer: Bowen & Collins Associates
  • Construction Period: 12/2017 - 11/2019

Ketchum Headworks Improvements

DCIM115MEDIAMAX_0012.JPGConstruct new splitter box, headworks building and influent screening channel including piping and hydraulic systems, odor control system and blowers, HVAC, electrical, instrumentation, and site improvements. Install Owner-furnished Carbon Odor Control System Perforated Plate Screen and Washer Compactor.

  • Location: Ketchum, Idaho
  • Cost: $2,415,419
  • Owner: City of Ketchum and Sun Valley Water and Sewer District
  • Designer: HDR Inc
  • Construction Period: 05/2018 - 03/2019

Blue Creek Bay Bridge

BLue Creek #3Rehabilitate bridge substructure and superstructure. Paint/coat both the substructure towers extending below the and waterline and the superstructure girders. Install 2,900 cathodic protection anodes to prevent structural erosion below water. Replace 15 girder pins and hangers, and 5 abutment bearing assemblies on the east end of the west bound lanes. Demolish the bridge deck, replace expansion joints and place new overlay.

  • Cost: $10,853,491
  • Owner: ITD
  • Designer: ITD
  • Construction Period: 04/2018 - 09/2020

Reno Sewer Lift Station Replacements

Upgrade (4) sanitary sewer lift station include bypass pumping of each system as the dry and wet wells are replaced with new  wells,  pumps, mixers and generators.  Also includes new sanitary sewer gravity flow lines, force main lines, valves and access vaults.

  • Cost: $5,895,700
  • Owner: City of Reno
  • Designer: Stantec
  • Construction Period: 11/15 - 06/16