Dive Brief:

• A bridge named for Leo Frigo, a big name in Wisconsin cheese, has been closed indefinitely because the roadway is sagging toward the Fox River.
• The bridge carries Interstate 43 over the waterway in Green Bay until it dipped.
• Officials determined that a bridge pier had sunk about 2 feet last week, causing the deformity but not a collapse.

Dive Insight:

The Frigo bridge had last been inspected in August 2012, Wisconsin DOT officials said, and was rated as sound, and crews did renovation work after that. After a motorist phones 911 to report the structural sag, officials began diverting the 40,000 vehicles a day that used the highway.