Lock And Dam No. 3 On The Mississippi

307 90 LOCK AND DAM NO. 3, on The Mississippi, Near Red Wing, Minn.-6 Located 6.1 miles above Red Wing, Minn. The locks are 110 feet wide by 60 feet long. One of a series of locks and dams providing a 9 foot navigable channel from the Gulf of Mexico to Minneapolis, Minn, constructed by the Corps of Engineers, U. S. A. COLOR Co