Navigation will stay open throughout Lock and Dam 1 upkeep interval. [USACE {photograph}
The U.S. Army Corps of Engineers, St. Paul District, and the Minnesota Department of Natural Resources, plan to barely decrease the Mississippi River between Lower St. Anthony Falls and Lock and Dam 1, each in Minneapolis, beginning June 24.
Corps officers plan to keep up the decrease river elevations by way of July 7, to examine and restore the rubber dam on prime of the spillway at Lock and Dam 1. To entry the rubber dam, the water ranges can be lowered roughly one foot beneath the spillway crest for roughly two weeks. Once the repairs are full, the conventional water ranges are anticipated to be restored no later than July 9. Navigation will stay open to the general public throughout upkeep.
The St. Paul Engineer District is accountable for supporting inland navigation by managing 13 locks and dams and by sustaining the 9-foot navigation channel from Minneapolis to Guttenberg, Iowa.
Lock and Dam 1 quick information
- Located on Mississippi River mile 847.9, within the metropolis of Minneapolis.
- Construction accomplished in 1917, reconstructed in 1929. The major lock was accomplished in May 1932. The final main rehabilitation occured between 1978-1983.
- The dam consists of an Ambursen concrete overflow construction 574-feet lengthy.
- The hydro energy station is owned and operated by Brookfield Power Co.
- The lock chamber is 56 toes huge by 400 toes lengthy. It is the one twin lock within the district.
