33 C.F.R. § 117.941
Missouri River
The draws of the US81 bridge, mile 805.7 at Yankton, and the Chicago and Northwestern Railroad bridge, mile 1066.5 at Pierre, need not be opened for the passage of vessels.
The draws of the US81 bridge, mile 805.7 at Yankton, and the Chicago and Northwestern Railroad bridge, mile 1066.5 at Pierre, need not be opened for the passage of vessels.