Rising costs and flat funding could slow plans to turn U.S. 30 into a limited-access freeway.

Governor Mike Braun says no solution has broad support, adding that even Indiana’s recently-increased gas tax won’t cover construction costs. He also rejected making U.S. 30 a toll road. Frequent stops along 30 have long caused safety issues and slowed transport.

Steel Dynamics, with a plant near the Allen/Whitley county line, has pledged up to $25 million dollars and some land to support improvements.

Braun said public-private partnerships could help move the project forward.