APWA - Project of the Year
Designed and Constructed in 11 Months
The Continental Road/Camino del Sol intersection in Green Valley, Arizona was the first roundabout constructed by Pima County. A significant number of accidents and compliance issues made safety improvements necessary at this four-way stop. A roundabout design was selected due to its low maintenance requirements and ability to mitigate the safety issues while maintaining a rural atmosphere.
There were several unique aspects incorporated into the project design including the ability to accommodate large tractor-trailers; separate multi-use paths to facilitate the use of the road by pedestrians, cyclists and golf carts; and existing drainage patterns were maintained and native vegetation was protected in place or salvaged and replanted.
The project was designed and constructed in less than 11 months. Pima County utilized an alternative contracting method, with the contractor as their Job Order Contractor.