Shiloh Conservation Area Project, Billings, MT CMG was retained by the City of Billings to construct the civil portion of the development of the 66-acre Shiloh Conservation Area (SCA) in west Billings. Design of SCA balanced the objectives of water quality improvement, flood control and community recreational benefits. This was accomplished through a series of wetlands and open water features which function to trap sediment, remove nutrients from the water column, provide secondary flood detention and also provide recreational and aesthetic opportunities. The design of the site required close coordination of the three disciplines of Civil Engineering, Landscape Architecture, and Wetland Ecology. SCA utilizes a series of water control features to regulate the flow and storage of water from the two incoming drainages, Hogan’s Slough and the Shiloh Agricultural Drain, and incorporates both existing and constructed wetlands along with pre-sedimentation basins to provide water quality treatment. A system of trails and bridges allowed for operational and maintenance access to all facilities while also providing a community recreational opportunity. The construction scope of work included preparing final cost estimate for competitive bid, solicitation of subcontractors, coordination of Owner provided contractors and materials, dewatering, mass grading, concrete intake structures and gates, paving, wetland landscaping and project information signs.
The Shiloh Conservation Area project received a Montana American Council of Engineering Companies (ACEC) Honor Award in the Waste and Storm Water Category as well as the 2015 Project of the Year Award for the American Public Works Association (APWA) Rocky Mountain Chapter and the Billings Engineers Club.

City of Billings
Project Type(s):
Heavy Civil and Specialized

Project Photos