Lewis and Clark Memorial Bridge

Bridge in South Dakota, United States

43°48′06″N 99°21′12″W / 43.80167°N 99.35333°W / 43.80167; -99.35333 (Lewis and Clark Memorial Bridge)Carries4 lanes of

I-90CrossesMissouri RiverLocaleChamberlain and Oacoma, South Dakota, United StatesMaintained bySouth Dakota Department of TransportationHistoryConstruction start1967Construction cost$8 millionOpenedAugust 1974Location Map

The Lewis and Clark Memorial Bridge in the US state of South Dakota is a bridge that carries Interstate 90 (I-90) across the Missouri River and Lake Francis Case between Chamberlain on the east bank and Oacoma on the west bank of the river. Construction on the bridge began in 1967 and cost $8 million. It was dedicated on July 7, 1974, and was opened to traffic in August.^[1]^[2]

A historical marker, located at the Lewis and Clark Interpretive Center in Chamberlain-Oacoma, South Dakota, overlooks the bridge.

References

^ "2,000 foot span on Missouri". Lead Daily Call. July 8, 1974. p. 2. Retrieved December 3, 2021 – via Newspapers.com.
^ "I-90 Bridge at Chamberlain Opens to Traffic". Mitchell Daily Republic. August 7, 1974. p. 17. Retrieved December 3, 2021 – via Newspapers.com.