The Mosby Creek Bridge, also called the Layng Bridge, is a covered bridge that uses the Howe truss. It is located near Cottage Grove, Oregon. The bridge was constructed in 1920, making it the oldest covered bridge in Lane County, Oregon.The Mosby Creek Bridge was built in 1920 for a cost of $4125 (US$48,561 in 2015) by Walter and Miller Sorenson. The bridge was named after the American pioneer David Mosby.