The Mosby Creek Bridge is Lane County’s oldest covered bridge. It was built in 1920 at a cost of $4,125 and was named for the pioneer David Mosby. David Mosby settled in 1853 and staked claim to 1,600 acres east of the present day city of Cottage Grove. The bridge is still in service and continues to receive regular maintenance by Lane County crews. Stream: Mosby Creek Length: 90 feet (27 m) Year Constructed: 1920 Nearest Town: Cottage Grove Located on Layng Road east of Cottage Grove.