Route 136 in Auburn, just north of the Durham town line, has been shut down after a section of the road collapsed at 11:30 a.m. this morning.

It is unclear when the road will reopen, said Mark Latti, Maine Department of Transportation spokesman.

The damage was caused during a construction project to repair erosion on a riverbank on the Androscoggin River. A crane working to stabilize the bank slid down the bank and fell over and about 100 feet of the road and three utility poles were damaged.

No one was hurt.

Traffic has been rerouted to the Jordan School, Pownal and Stackpole roads. About 4,400 vehicles a day pass along the damaged section of Route 136.