Heavy civil
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As a natural extension of our capability to execute challenging and complex projects, most of which contain a significant civil component, Prospect Construction has actively and successfully expanded into the civil market. With a passion for myriad types of civil work, Prospect Construction has successfully completed projects that include reinforced embankments, concrete bridges, road work and utilities, hillside improvements and cemeteries.
Keystone Projects
Fort Smith Sewer Upgrades- Fort Smith, MT
Fort Smith Water & Sewer District- Design- Bid- Build
Engineer: Robert Peccia & Associates
Prospect Constructed a new sewer lagoon system for the Fort Smith Water and Sewer District. This project include the construction of two new lagoon cells requiring a 50,000cy excavation and 21,000cy embankment. The lagoons included distribution piping and structure as well as a 213,700 multi layer liner system. Other work included includes aeration equipment, irrigation pivot, lift station, and 3,070 lineal feet of sewer force main. This project was constructed in a remote location and required detail planning and material procurement.
Glendo Sewage Lagoon Improvements Project- Glendo State Park, WY
State of Wyoming Department of State Parks and Cultural Resources Division of State Parks, Historic Sites & Trails- Design- Bid-Build
Engineer: IMEG
The project consisted of the demolition of the existing sewage lagoons, construction of 3 new line sewage lagoon ponds, installation of new sanitary sewer lines and concrete structures and site reclamation. Demolition work consisted of the removal of ~2,050 CY of sludge from the existing ponds, removal of the existing liners, and removal of the existing sanitary sewer lines and dissipation structure. The demolition work made room for three new HDPE lines sewer lagoons requiring approximately 20,000 cubic yards of earthwork, 154,910 SF of HDPE liner and underlayment, 1,122 linear feet of new 8" sewer with 5 new manholes, dissipation structures, and 5,300 SY of new gravel access roads. PCI had to work with and coordinate installation of two of the new ponds and new sanitary sewer main prior to demolition of the existing facilities in order to maintain sewer service to the area. In addition to coordination of local sewer services PCI had to perform all work under eight high voltage overhead electric transmission lines.
North Wells Development Phase 1-Pine Bluffs, WY
Town of Pine Bluffs- Design-Bid-Build
Engineer: HDR
The project consisted of construction of a new development north of the Town of Pine Bluffs, Wyoming. Work included a new water distribution system, new sanitary sewer collection and force main distribution system from a new wastewater lift station, construction of several new gravel surfaced roadways, site grading for road construction and surface drainage (culvert installation), and the expansion of the electrical distribution
system. It included approximately 45,000 CY of topsoil stripping and replacement, 95,000 CY of unclassified excavation, 12,400 LF of 8” watermain, valves, tees, and hydrants, 5,700 LF of 6” sanitary sewer force main, a new wastewater lift station, 6,200 LF of 8’’ gravity sewer, 26 sewer manholes, and 16,500 tons of crushed base gravel, 800
LF of 24’’ RCP culvert installation, and restoration of the project area.
Lower Russell Levee Setback- Kent, WA
King County- Design-Bid-Build
Engineer: HDR Engineering
This project was the first phase of two to protect the City of Kent from flooding of the Green River. The project consists of 2,500 lineal feet of concrete flood walls that includes architectural wall finishes depicting fish and blue herons. Other major work includes installing vinyl sheet piling as part of the wall's foundation. Construction took place in the winter during record floods which added additional challenges to the sequence of work. For preparation of the next phase 3,500 lineal feed of waterline and other associated utilities were relocated.
Craigmont Water Resource Recovery Facility- Craigmont, ID
City of Craigmont- Design- Bid- Build
Engineer: Merrick & Company
The project replaced the existing clay lined wastewater lagoons with new HDPE lined aerated lagoons, and involved sludge removal, embankment and grading and new influent and lagoon piping. The treatment processes of the plant were also upgraded and created a new blower building, disinfection building and submerged aerated rock filter cells for ammonia removal.