US Army Corps of Engineers
St. Paul District


Public Meetings

  • Aug. 13 Mill City Museum, 6-8 p.m.
    704 S 2nd St
    Minneapolis, MN 55401
  • Aug. 19 Michael Dowling School, 6-8 p.m.
    3900 W. River Pkwy
    Minneapolis, MN 55406

Public Meeting Materials


Upper St. Anthony Falls Study timeline - Revised

  • May 2019 – Restart Disposition Study focused on Upper St. Anthony Falls
  • August 2019 – April 2020 – prepare draft report and Environmental Assessment
  • May – July 2020 – Public review of draft report and Environmental Assessment
  • December 2020 – Upper St. Anthony Falls Final Report

Background / hydropower

The locks and dams at Upper St. Anthony Falls and Lower St. Anthony Falls were constructed as part of the Minneapolis Upper Harbor project in 1963 and 1956, respectively. Lock and Dam 1, located near Minnehaha Park, was originally constructed by the U.S. Army Corps of Engineers in 1917, and a hydropower plant was completed here by the Ford Motor Company in 1924. All three sites have a federally-licensed hydropower facility integral to the dams.

The federally-authorized purposes of the Minneapolis structures is navigation and recreation, and the three locks and dams work together as a commercial navigation system. 

Minneapolis Locks Disposition Studies

Disposition studies examine the benefits and costs of continuing to operate federal projects which are no longer serving their authorized purpose. A study for all three facilities began April 2018 and public meetings were held in July 2018.

In October 2018, the Water Resources and Development Act of 2018 directed that a disposition study for Upper St. Anthony Falls Lock and Dam was to be completed separately from the other two sites. As such, the study was re-scoped to focus just on Upper St. Anthony Falls Lock and Dam. A separate study for Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 will be conducted at a later time.

The disposition study for Upper St. Anthony Falls, resumed in May 2019. The study will result in a report containing recommendations take no action or to deauthorize and dispose of all or part of the federal property at Upper St. Anthony Falls Lock and Dam. A draft report will be made available for public comment in spring 2020.

Federal property disposal is managed by the General Services Administration as governed by federal law. If disposal of the properties is not confirmed, additional studies may be performed to modify the projects to serve existing or new authorized purposes, or for additional uses identified by a potential non-federal sponsor and authorized under a new feasibility study.


Upper St. Anthony Falls Lock and Dam was closed to navigation on June 9, 2015, under the direction of the Water Resources Reform and Development Act of 2014. The act did not deauthorize or direct further disposition of the lock. The lock continues to be operated for flood damage mitigation. Commercial navigation at Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 has decreased due to the closure of the Upper St. Anthony Falls Lock. Lower St. Anthony Falls lock and dam and Lock and Dam 1 will be the subject of a future disposition study.

Contact Us

U.S. Army Corps of Engineers
Project Management
Minneapolis Locks Disposition
180 5th St. E., Suite 700
St. Paul, MN 55101