The Knik Arm Crossing is a state of Alaska Department of Transportation & Public Facilities (DOT&PF) project to construct a 1.74-mile toll bridge over Cook Inlet’s Knik Arm, connecting Anchorage, Alaska’s largest city, with the Matanuska-Susitna Borough, Alaska’s fastest-growing region.
The Knik Arm Crossing was first envisioned in 1923 by railroad engineers looking for a more direct route to the gold fields in Interior Alaska. Since that time, the idea has been revisited by a variety of people and organizations including a 1972 engineering study by the Alaska Department of Highways and the 1984 Draft Environmental Impact Statement (EIS) by the DOT&PF.
In 2003, the Alaska State Legislature formed a corporation within the DOT&PF and the Knik Arm Bridge & Toll Authority to pursue the development of the bridge. The Authority completed the final EIS in 2007 and the Federal Highway Administration (FHWA) issued a Record of Decision (ROD) in 2010.
In 2014, the project management, including, design, permitting, and construction was transferred to ADOT&PF. The plan of finance was further refined, and project construction costs will now be covered by a combination of a federal TIFIA loan, federal transportation grants, and state bonds.
ADOT&PF recently completed new studies for the Knik Arm Crossing Project and presented the finding to the MatSu Borough and to the AMATS Policy and Technical Advisory Committees. The studies were launched mid-2013 to update traffic and revenue forecasts for the Crossing.
The major findings of the research include:
This comprehensive analysis will be used in securing a federal TIFIA loan.