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Upper Mississippi River Lock & dam 6
Upper Mississippi locks and dams

This is a list of current and former locks and dams of the Upper Mississippi River which ends at the Mississippi River's confluence with the Ohio River at Cairo, Illinois.

Locks and dams

Name Location Miles above the Ohio Coordinates Pool elevation Notes

Minnesota[edit]

Lake Itasca Stepping Stones / Dam Itasca State Park 47°14′23.2″N 95°12′27.6″W / 47.239778°N 95.207667°W / 47.239778; -95.207667 Lake Itasca
1,475 feet 		Stepping stones placed by CCC with creation of new channel / outlet for Mississippi
Vekin's Dam 8 miles north of Lake Itasca 47°17′59.8″N 95°14′30.0″W / 47.299944°N 95.241667°W / 47.299944; -95.241667 n/a Wooden dam from the late 1800s[1]
Ottertail Power Co. Dam 7 miles east of Bemidji 47°29′1.0032″N 94°43′45.9156″W / 47.483612000°N 94.729421000°W / 47.483612000; -94.729421000 Lake Bemidji
1,335 feet
Knutson Dam About 15 miles (24 km) east and north of city of Cass Lake 47°27′07″N 94°29′00″W / 47.45194°N 94.48333°W / 47.45194; -94.48333 Cass Lake
1,301 feet
Winnibigoshish Lake Dam About 15 miles (24 km) northwest of Deer River 47°25′44.5″N 94°03′6.8″W / 47.429028°N 94.051889°W / 47.429028; -94.051889 Lake Winnibigoshish
1,290 feet 		Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Pokegama Dam Mile 1187 47°15′2.9844″N 93°35′15.5184″W / 47.250829000°N 93.587644000°W / 47.250829000; -93.587644000 Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Blandin Paper Co. Dam Mile 1183.6 47°13′54.5628″N 93°31′52.9500″W / 47.231823000°N 93.531375000°W / 47.231823000; -93.531375000
Potlatch Dam Brainerd, Minnesota 46°22′40.8324″N 94°11′0.0816″W / 46.378009000°N 94.183356000°W / 46.378009000; -94.183356000 Rice Lake
1,174 Feet
Little Falls Dam Little Falls, Minnesota 45°58′32″N 94°22′06″W / 45.97556°N 94.36833°W / 45.97556; -94.36833
Blanchard Dam Royalton, Minnesota 45°51′39″N 94°21′36″W / 45.86083°N 94.36000°W / 45.86083; -94.36000
Sartell Dam Sartell, Minnesota 45°37′15″N 94°12′13″W / 45.62083°N 94.20361°W / 45.62083; -94.20361
St. Cloud Dam St. Cloud, Minnesota 45°32′52″N 94°08′50″W / 45.54778°N 94.14722°W / 45.54778; -94.14722
Coon Rapids Dam Brooklyn Park / Coon Rapids, Minnesota 45°08′36″N 93°18′43″W / 45.14333°N 93.31194°W / 45.14333; -93.31194 No locks, ends navigable portion of river
Upper Saint Anthony Falls Lock and Dam Minneapolis, Minnesota ~854 44°58′54″N 93°15′31″W / 44.98167°N 93.25861°W / 44.98167; -93.25861 799 feet Last lock upstream on river. Since June 9, 2015, the lock has remained closed to prevent the spread of invasive Asian Carp.[2] Located within the Mississippi National River and Recreation Area.
Lower Saint Anthony Falls Lock and Dam Minneapolis, Minnesota ~853 44°58′42″N 93°14′49″W / 44.97833°N 93.24694°W / 44.97833; -93.24694 750 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Meeker Island Lock and Dam
(demolished) 		Minneapolis, Minnesota / St. Paul, Minnesota ~850 44°57′14″N 93°12′28″W / 44.95389°N 93.20778°W / 44.95389; -93.20778 NA Demolished. Originally known as Lock and Dam No. 2
Lock and Dam No. 1 Minneapolis, Minnesota / St. Paul, Minnesota ~847.8 44°54′55″N 93°12′02″W / 44.91528°N 93.20056°W / 44.91528; -93.20056 725 feet Ford Plant Powerhouse on east side. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 2 Hastings, Minnesota ~815 44°45′35″N 92°52′07″W / 44.75972°N 92.86861°W / 44.75972; -92.86861 687 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District

Minnesota–Wisconsin[edit]

Lock and Dam No. 3 Red Wing, Minnesota 796.9 44°36′36″N 92°36′37″W / 44.61000°N 92.61028°W / 44.61000; -92.61028 675 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 4 Alma, Wisconsin ~753 44°19′32″N 91°55′13″W / 44.32556°N 91.92028°W / 44.32556; -91.92028 667 feet The lock is on the Wisconsin side right next to a small cafe. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 5 Winona County, Minnesota ~738.1 44°09′40″N 91°48′39″W / 44.16111°N 91.81083°W / 44.16111; -91.81083 660 feet Visitor parking next to the lock. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 5A Goodview, Minnesota ~728.5 44°05′18″N 91°40′08″W / 44.08833°N 91.66889°W / 44.08833; -91.66889 651 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 6 Trempealeau, Wisconsin ~714.1 43°59′59″N 91°26′18″W / 43.99972°N 91.43833°W / 43.99972; -91.43833 646 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 7 La Crescent, Minnesota ~702.5 43°52′01″N 91°18′26″W / 43.86694°N 91.30722°W / 43.86694; -91.30722 639 feet Adjacent to I-90 Mississippi River Bridge. Visitor parking and information next to the lock. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 8 Genoa, Wisconsin ~679.2 43°34′12″N 91°13′54″W / 43.57000°N 91.23167°W / 43.57000; -91.23167 631 feet Visitor parking right next to the lock. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District

Iowa–Wisconsin[edit]

Lock and Dam No. 9 Harpers Ferry, Iowa ~647.9 43°12′46″N 91°06′15″W / 43.21278°N 91.10417°W / 43.21278; -91.10417 620 feet Parking area next to lock on Wisconsin side. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 10 Guttenberg, Iowa ~615.0 42°47′06″N 91°05′42″W / 42.78500°N 91.09500°W / 42.78500; -91.09500 611 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District
Lock and Dam No. 11 Dubuque, Iowa ~583 42°32′25″N 90°38′39″W / 42.54028°N 90.64417°W / 42.54028; -90.64417 603 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District

Iowa–Illinois[edit]

Lock and Dam No. 12 Bellevue, Iowa ~556.7 42°15′41″N 90°25′12″W / 42.26139°N 90.42000°W / 42.26139; -90.42000 592 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 13 Fulton, IL ~522.5 41°53′53″N 90°09′21″W / 41.89806°N 90.15583°W / 41.89806; -90.15583 583 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 14 LeClaire, Iowa ~493.2 41°34′24″N 90°23′56″W / 41.57333°N 90.39889°W / 41.57333; -90.39889 572 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 15 Rock Island, Illinois ~482.8 41°31′07″N 90°34′08″W / 41.51861°N 90.56889°W / 41.51861; -90.56889 561 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 16 Muscatine, Iowa ~457.2 41°25′32″N 91°0′35″W / 41.42556°N 91.00972°W / 41.42556; -91.00972 545 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 17 New Boston, Illinois ~437 41°11′27″N 91°03′37″W / 41.19083°N 91.06028°W / 41.19083; -91.06028 536 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 18 Gladstone, Illinois ~410.5 40°52′54″N 91°01′27″W / 40.88167°N 91.02417°W / 40.88167; -91.02417 528 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 19 Keokuk, Iowa ~364 40°23′41″N 91°22′29″W / 40.39472°N 91.37472°W / 40.39472; -91.37472 518 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District

Missouri–Illinois[edit]

Lock and Dam No. 20 Canton, Missouri ~343 40°08′37″N 91°30′46″W / 40.14361°N 91.51278°W / 40.14361; -91.51278 480 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 21 Quincy, Illinois ~324.9 39°54′23″N 91°25′56″W / 39.90639°N 91.43222°W / 39.90639; -91.43222 470 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 22 Saverton, Missouri ~301.2 39°38′18″N 91°14′49″W / 39.63833°N 91.24694°W / 39.63833; -91.24694 460 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island District
Lock and Dam No. 24 Clarksville, Missouri ~273.4 39°22′36″N 90°54′30″W / 39.37667°N 90.90833°W / 39.37667; -90.90833 449 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis District
Lock and Dam No. 25 Winfield, Missouri ~241.4 39°00′17″N 90°41′11″W / 39.00472°N 90.68639°W / 39.00472; -90.68639 434 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis District
Lock and Dam No. 26 (historical) Alton, Illinois ~202.5 38°53′10″N 90°10′55″W / 38.88611°N 90.18194°W / 38.88611; -90.18194 419 feet Demolished, replaced by Melvin Price Locks and Dam.
Melvin Price Locks and Dam
aka Lock and Dam No. 26 		East Alton, Illinois ~200.8 38°52′09″N 90°09′13″W / 38.86917°N 90.15361°W / 38.86917; -90.15361 Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis District
Chain of Rocks Dam
aka Dam No. 27 		Glasgow Village, Missouri ~190.2 38°45′27″N 90°10′39″W / 38.75750°N 90.17750°W / 38.75750; -90.17750 398 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis District
Chain of Rocks Lock
aka Lock No. 27 		Granite City, Illinois 38°42′11″N 90°10′51″W / 38.70306°N 90.18083°W / 38.70306; -90.18083 Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis District

Expansion proposals for upper Mississippi locks

The Army Corps of Engineers has studied the expansion of some locks on the Upper Mississippi.[3] Since at least 1999, the Corps has considered expanding 600 ft locks 20, 21, 22, 24, and 25 to 1,200 ft.[3][4]

Gallery

See also

References

  1. ^ Weeks, John. "Vekins Dam". Retrieved May 3, 2022.
  2. ^ Sepic, Matt. "End of an era: Upper St. Anthony Falls lock closes". MPR News. Retrieved 24 June 2015.
  3. ^ a b "Big Price - Little Benefit (The case against lock expansion on the Mississippi River)" (PDF). Nicollet Island Coalition. February 2010.
  4. ^ "Lock System Expansion Proposal is Aired". Milwaukee Journal Sentinel. Associated Press. August 8, 1999.

External links

Map all coordinates using: OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates)
Lists of dams and reservoirs in the United States
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