One of the largest projects ever completed by the Alabama Department of Transportation, Interstate 565 through Madison County has sparked economic development and growth, improving quality of life for North Alabama. Volkert provided design on 4.8 miles of Interstate Spur I-565 from Jordan Lane to Andrew Jackson Way in downtown Huntsville, Alabama. The project consisted of refining the location study alignments and establishing mainline, ramps, crossroads alignments and grades, as well as, four interchanges with seven miles of ramps and collector/distributor roads and seven miles of surface street reconstruction. Traffic analysis was provided to determine lane requirements. Volkert provided final plans to include roadway, bridge, drainage, signing, signalization, lighting, and traffic handling, representing a total construction cost of nearly $149 million.
Elevated structures were designed for 3.1 miles of mainline and 3.2 miles of ramps and crossroads. Bridge geometry was complicated bythe urban location, varying roadway width, the number of entrance and exit ramps, and the curved alignment. The design used was Type III, IV and IV Modified AASHTO girders in continuous units and welded steel plate girders. In addition, Volkert provided design surveys, property surveys, and title research, including right-of-way base map.
In 2015, I-565 in Huntsville was inducted into the Alabama Engineering Hall of Fame.