Welcome to the Dowling Road / Seward Highway Interchange Reconstruction website. More information will be posted soon.
Constructed in 2003, the existing roundabout interchange replaced two traffic signals with Alaska’s first multilane roundabouts and converted Dowling Road from a substandard 2-lane road to five lanes. The roundabouts were designed to meet projected 2020 traffic volumes and the current traffic volumes at some of the approaches now exceed those projections, resulting in longer wait times. There were also right-of-way, utility and other constraints that were limiting factors during the original design. The Alaska Department of Transportation and Public Facilities (DOT&PP) has since implemented safety fixes to solve some problems with the existing interchange and acquired additional right-of-way.
This project will take a fresh look at the Dowling Road/Seward Highway interchange by evaluating different interchange types and ultimately design a replacement interchange. The goal is to provide an interchange that serves both motorized and non-motorized travelers, is cost-effective, easy to maintain, and efficiently conveys both large and small vehicles. The reconstructed interchange will accommodate projected traffic volumes through 2040 and provide enhanced safety throughout the corridor.
Replacing the existing bridge and making mainline and ramping improvements will also be a consideration of the project. This project will evaluate interchange types with the existing bridge and with a replacement bridge.
The project is just getting underway. The project team is soliciting information from the public on familiarity and use of different interchanges types. Please fill out a comment sheet to participate. Engineering and traffic safety analysis are the first steps, which the team will then incorporate into a Preliminary Engineering Report scheduled for late spring review
Preliminary engineering, environmental, and design efforts will continue through 2019 with construction anticipated to begin in 2020.
For more information:
Kevin Jackson, P.E.
Lounsbury & Associates, Inc.
Joe Taylor, P.E.,
Brooks & Associates
Anne Brooks, P.E.
Public Participation Coordinator