A permit approving the location and plans of the proposed twinning of the Ambassador Bridge has been granted by the U.S. Coast Guard.
The coast guard has completed its review and evaluation of the Detroit International Bridge Company's application for the twinning, called the Ambassador Bridge Enhancement Project, according to a news release on Tuesday.
The project would still need approval by the Canadian government before construction could begin.
A permit approving the location and plans of the proposed bridge was sent to DIBC on Tuesday.
Coast guard officials say permit action is based on the potential impacts of the project on navigation and the human environment.
After completing an environmental assessment, the coast guard determined the project would not have a significant impact on the environment and issued a finding of no significant impact.
The Coast Guard also determined the navigational clearances of the proposed twin span would meet the reasonable needs of the current and foreseeable future navigation.
The Detroit City Council approved an agreement with DIBC in July 2015 that will allow DIBC to pursue the necessary rights to construct the bridge over Riverside Park and appropriate substitution parklands.
The coast guard bridge permit application process runs separately from the Canadian government's approval process.
