What was already known became official this morning: The Federal Highway Administration formally announced it is backing a 32nd Street route for the South Lawrence Trafficway.

In a press release at southlawrencetrafficway.org, FHA said there were “no feasible and prudent alternatives” to the proposed routes, which goes through the Baker Wetlands. That route has been opposed by American Indian and environmental groups.

“The action includes all possible planning to minimize harm to the property resulting from such use,” the agency said in the press release.

The full decision, covering nearly two dozen documents, can be found at the southlawrencetrafficway.org Web site.