To: Board of County Commissioners
Through: Bryan Weimer, PWLF, Director, Public Works & Development
Prepared By:
prepared
Ryan Seacrist, PE, Capital Improvement Program Manager
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Subject:
title
Request for Full Road Closure During Construction for Tempe Roundabout
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Purpose and Request:
recommended action
Arapahoe County Public Works and Development Staff are requesting the Board of County Commissioners (BOCC) to approve a full roadway segment closure for the duration of construction of the Tempe Street Roundabout located between Progress Avenue and Pennwood Avenue, which is approximately 0.2 miles. The closure would be for 74 calendar days (from May 27th through August 8th).
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Background and Discussion: The Versailles Corridor Study (Study) was started in 2021 to identify potential improvement opportunities along the study area-the Study was from the intersection of Versailles Parkway and Smoky Hill Road and extending north to the intersection of Tempe Street and Copperleaf Boulevard.
The Study identified the intersection of Tempe Street and future Belleview Avenue as a great location for possible intersection stop-control improvements. The Study then analyzed those options-including adding stop signs, a full traffic signal, and a roundabout. Of the options analyzed, the single-laned roundabout was anticipated to offer the best Level of Service (LOS) with the current traffic volumes, as well as, with the future predicted traffic volumes. Forecasted traffic volumes did account for the future Belleview Ave. traffic when and if it is connected to Gun Club Rd. From that analysis, PWD staff contracted a design consultant to create a final design and prepare construction plans for the roundabout. Those plans included vehicle and pedestrian detour routes.
In regard to the project constructability, County staff discussed a number of items, specifically: construction approach, project timing, and construction access. The conclusion of the discus...
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