Map Of Upper Mississippi River Locks And Dams

In terms of geologic and hydrographic history the upper mississippi east and south of fort snelling is a portion of the now extinct glacial river warren which carved the valley of the minnesota river permitting the immense glacial lake agassiz to join the world s oceans at the gulf of mexico the collapse of ice dams holding back glacial lake duluth and glacial lake grantsburg carved.

Map of upper mississippi river locks and dams.

Paul mn to st. Congress authorized construction of seven new 1 200 foot locks at the river s most congested spots in. Expansion proposals for upper mississippi locks. Since at least 1999 the corps has considered expanding 600 ft locks 20 21 22 24 and 25 to 1 200 ft.

The chronic underfunding for upper mississippi locks and dams has been going on for decades. Lock and dam 6 river mile 714 1 lock and dam 7 river mile 702 5 lock and dam 8 river mile 679 2 lock and dam 9 river mile 647 9 lock and dam 10 river mile 615 0 lock and dam 11 river mile 583 0 lock and dam 12 river mile 556 7 lock and dam 13 river mile 522 5 locks and dam 14 river mile 493 3 locks and dam 15 river mile 483 0. Army corps of engineers maintains a nine foot channel on the mississippi from st. The locks and dam located here are part of a much larger system of 29 locks and dams on the upper mississippi river.

The army corps of engineers has studied the expansion of some locks on the upper mississippi. Pleasure craft towboats and barges all use this stairway of water.