MADISON, Wis. – Wisconsin Gov. Scott Walker has declared the closure of the Leo Frigo Bridge in Green Bay a disaster.

State transportation officials closed the bridge Wednesday after a support pier unexpectedly sank 2 feet, causing a deep dip in the pavement.

Walker issued an executive order Friday calling the bridge a key commercial link, declaring the closure a disaster and placing Brown County in a state of emergency for 60 days. The bridge spans the Fox River at the mouth of Green Bay.

The declarations could lead to federal reimbursement for the first 180 days of repair work. Transportation officials plan to attach equipment similar to seismographs on the bridge’s piers to detect movement. Once that is done, workers will begin inspections for repairs.