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Adams County awards $14.8 million GMP and $699,036 design task order for Riverdale Bluffs open-space project

Adams County Board of Commissioners · March 4, 2026
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Summary

The board approved a $14,785,963.80 guaranteed maximum price to Concrete Express Inc. for Riverdale Bluffs construction and a $699,036 design task order to Stream Landscape Architecture; staff said the 225-acre project will begin construction in 2026 and is funded in part through open-space tax grants and contributions.

Adams County commissioners approved two major contracts for the Riverdale Bluffs open-space project: a guaranteed maximum price (GMP) of $14,785,963.80 to Concrete Express Inc. for construction-manager/general-contractor services and a $699,036.20 task order to Stream Landscape Architecture and Planning for architectural and construction-administration services.

Cindy Stringham of Parks, Open Space and Cultural Arts described the project as a 225-acre regional park north of Riverdale Regional Park that will include overlooks, ADA walking paths, single-track bike trails, a pedestrian underpass across 136th Avenue and an overpass across Riverdale Road. "The Riverdale Bluffs is a 225 acre open space park that will be built for recreational use, enhancing regional connectivity, and improving habitat and vegetation," she said.

Staff said the project used a construction-manager/general-contractor approach to identify risks during design, control costs and improve constructability. The county solicited a formal RFP on Oct. 1, 2024; preconstruction services were awarded to CEI in November 2024 and construction is expected to begin in 2026 with a phased approach to complete the project over roughly three years.

Commissioners emphasized the project's role in preserving open space and expanding accessible outdoor recreation in Adams County. The board moved, seconded and unanimously approved the GMP and the Stream task order.

Funding sources noted by staff include a contribution from E-470 and Adams County open-space tax grants; commissioners said the project meets long-term land-acquisition and stewardship goals.