RPE was responsible for site and access planning for a 58 acre commercial development project on HWY 160/550 in Durango, CO. The project contained 380,000sf of commercial and 75,000sf of retail space. Mercury Payment Systems, one of Durango’s largest private employers, is lined up to occupy approximately 100,000sf of the proposed office space. The project also involved design of approximately 1600-lf of internal streets per the City of Durango development standards including bike lanes, curb and gutter, and sidewalks. At the intersection with La Posta Road, Roundabout was also evaluated, but determined to be infeasible. Multimodal access includes an internal Transit Stop and a concrete path connecting the internal roads to the Animas River Trail.
Utility and drainage design was also provided by RPE including approximately 2,200-lf of gravity sewer, over 3,000-lf of water lines, and 1600-lf of storm sewers. The storm sewer system was designed to satisfy the criteria of the CDOTís MS4 requirements, the City of Durango stormwater detention and water quality standards, the design standards of the Urban Drainage and Flood Control District.
The preliminary and final Traffic Impact Studies (TISs) included analysis of five (5) CDOT intersections including a proposed underpass of the US 160/550 “High Bridge”, a proposed Right-in/Right-out access between the “High Bridge” and Sawyer Drive, and the Sawyer Drive intersection. The study also included two (2) proposed City of Durango intersections and minor modifications to the CDOT frontage road that transitions to La Plata County Hwy 213. Therefore, the TIS process included coordination with the City of Durango, La Plata County, and CDOT.