List of locks and dams of the Upper Mississippi River

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 NameLocationMiles above the OhioCoordinatesPool elevationNotesMinnesotaLake Itasca Stepping Stones / DamItasca State ParkLake Itasca1,475 feetStepping stones placed by CCC with creation of new channel / outlet for MississippiVekin's Dam8 miles north of Lake Itascan/aWooden dam from the late 1800sOttertail Power Co. Dam7 miles east of BemidjiLake Bemidji1,335 feetKnutson DamAbout east and north of city of Cass LakeCass Lake1,301 feetWinnibigoshish Lake DamAbout northwest of Deer RiverLake Winnibigoshish1,290 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictPokegama DamMile 1187 Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictBlandin Paper Co. DamMile 1183.6Potlatch DamBrainerd, MinnesotaRice Lake1,174 FeetLittle Falls DamLittle Falls, MinnesotaBlanchard DamRoyalton, MinnesotaSartell DamSartell, MinnesotaSt. Cloud DamSt. Cloud, MinnesotaCoon Rapids DamBrooklyn Park / Coon Rapids, MinnesotaNo locks, ends navigable portion of riverUpper Saint Anthony Falls Lock and DamMinneapolis, Minnesota~854799 feetLast lock upstream on river. Since June 9, 2015, the lock has remained closed to prevent the spread of invasive Asian Carp. Located within the Mississippi National River and Recreation Area.Lower Saint Anthony Falls Lock and DamMinneapolis, Minnesota~853750 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictMeeker Island Lock and Dam(demolished)Minneapolis, Minnesota / St. Paul, Minnesota~850NADemolished. Originally known as Lock and Dam No. 2Lock and Dam No. 1Minneapolis, Minnesota / St. Paul, Minnesota~847.8725 feetFord Plant Powerhouse on east side. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 2Hastings, Minnesota~815687 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictMinnesota–WisconsinLock and Dam No. 3Red Wing, Minnesota796.9675 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 4Alma, Wisconsin~753667 feetThe 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 DistrictLock and Dam No. 5Winona County, Minnesota~738.1660 feetVisitor parking next to the lock. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 5AGoodview, Minnesota~728.5651 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 6Trempealeau, Wisconsin~714.1646 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 7La Crescent, Minnesota~702.5639 feetAdjacent 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 DistrictLock and Dam No. 8Genoa, Wisconsin~679.2631 feetVisitor parking right next to the lock. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictIowa–WisconsinLock and Dam No. 9Harpers Ferry, Iowa~647.9620 feetParking area next to lock on Wisconsin side. Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 10Guttenberg, Iowa~615.0611 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul DistrictLock and Dam No. 11Dubuque, Iowa~583603 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictIowa–IllinoisLock and Dam No. 12Bellevue, Iowa~556.7592 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 13Fulton, IL~522.5583 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 14LeClaire, Iowa~493.2572 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 15Rock Island, Illinois~482.8 561 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 16Muscatine, Iowa~457.2545 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 17New Boston, Illinois~437536 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 18Gladstone, Illinois~410.5528 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 19Keokuk, Iowa~364518 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictMissouri–IllinoisLock and Dam No. 20Canton, Missouri~343480 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 21Quincy, Illinois~324.9470 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 22Saverton, Missouri~301.2460 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, Rock Island DistrictLock and Dam No. 24Clarksville, Missouri~273.4449 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis DistrictLock and Dam No. 25Winfield, Missouri~241.4434 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis DistrictLock and Dam No. 26 (historical)Alton, Illinois~202.5419 feetDemolished, replaced by Melvin Price Locks and Dam.Melvin Price Locks and Damaka Lock and Dam No. 26East Alton, Illinois~200.8Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis DistrictChain of Rocks Damaka Dam No. 27 Glasgow Village, Missouri~190.2398 feetOwned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Louis DistrictChain of Rocks Lockaka Lock No. 27 Granite City, IllinoisOwned/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. Since at least 1999, the Corps has considered expanding 600 ft locks 20, 21, 22, 24, and 25 to 1,200 ft.

Gallery

See also List of crossings of the Upper Mississippi River Mississippi Valley Division List of locks and dams of the Ohio River

References

External links

USACE St. Paul District Locks and Dams Historic American Engineering Record (HAER) historical overviews: (Lock & Dam Nos. 3–10)

HAER documentation of individual locks and dams: