Cahaba Road Transportation Enhancement

Cahaba Road serves as a connector to three municipalities in the Birmingham metropolitan area. This road is also the main access into the Birmingham Zoo and Birmingham Botanical Gardens, which generate high volumes of traffic and parking during their peak events.  Given the road’s importance, the City of Birmingham led a project to improve the facility to accommodate more than just vehicular traffic.

Sain provided the roadway design, survey services, traffic services, and CE&I for the project. The first steps of the design included performing a traffic study to evaluate existing traffic conditions, project future traffic with expansions of the Zoo and Gardens, and determine an appropriate roadway typical section. The final design included two 14’ lanes which would accommodate both vehicular and bicycle traffic, sidewalks on both sides of the road, lighting on one side of the road, and a roundabout at the Zoo entrance.

During construction Sain provided a full time inspector on the project to serve as the liaison between the contractor, City, and ALDOT. Sain was also tasked with communicating schedules, progress, and issues to the Zoo and Gardens.