Under the Continuing Authorities Program (CAP), the U.S. Army Corps of Engineers is authorized to plan, design and construct certain types of water resource and ecosystem restoration projects without additional and specific congressional authorization. The purpose is to implement projects of limited scope and complexity. Each authority has specific guidelines and total program and per-project funding limits. Studies are cost-shared 50/50 during feasibility. Most projects are cost-shared 65 percent Federal and 35 percent non-Federal during implementation, unless otherwise noted.
The St. Paul District operates and maintains 13 locks and dams from Upper St. Anthony Falls in downtown Minneapolis, Minnesota, to Lock and Dam 10 in Guttenberg, Iowa. Each lock and dam is a critical step in the "stairway of water" that makes navigation possible between Minneapolis and St. Louis, Missouri. These facilities are aging structures, with locks and dams 2 through 10 originally constructed in the 1930s. These sites include a dam bridge and varying numbers of dam gates. The moveable dam gates are one of the most critical system components because they control pool elevation for navigation, flood control and environmental purposes.
Determine whether or not continued operation and ownership of Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 are in the federal interest, and if not, provides supporting information for deauthorization of the project purposes and disposal of the property.
Determine whether or not continued operation and ownership of Upper St. Anthony Falls Lock and Dam (USAF) is in the federal interest, and if not, provide supporting information for deauthorization of the project purposes and disposal of the property. USAF is located on the Mississippi River in Minneapolis, Minnesota.
Granting licensing of a privately-owned hydropower project on federal property. The project is proposed to be located at Upper St. Anthony Falls lock and dam, in Minneapolis, Minnesota.
Twin Cities Hydro, LLC, holds Federal Energy Regulatory Commission (FERC) license number 362, which allows it to operate the Ford Hydropower plant on the Mississippi River in St. Paul, Minnesota. The hydropower facility consists of a powerhouse, four 5,800-horsepower Francis turbines and four 4,880-kilowatt generating units, a 2-foot-high inflatable flashboard system atop the concrete dam spillway and a power distribution system. The total capacity of the plant is 17.92 megawatts, or enough to provide power to 14,500 households.
Constrained funding and the Nation’s fiscal deficit have led to reduced operations and maintenance funding within the Corps Inland Marine Transportation System (IMTS). When coupled with deteriorating infrastructure and increasing costs of operation, it became clear that the level of service the Corps has been providing at some locks and dams is not sustainable.
Pool 2 is the navigation pool created by the construction of Lock and Dam 2 at Hastings, Minnesota, at river mile 815.2. The pool is approximately 32.4 miles long and stretches upstream to Lock and Dam 1 in Minneapolis at river mile 847.6 (often referred to as the Ford Dam). Between river miles 818 and 820, the navigation channel switches from one bank of the river to the other and back again creating a near 90-degree bend in the river at mile 819.
Miter gates are integral to Mississippi River Locks and Dams, 2 through 10. Miter gates are comprised of two leaves that provide a closure at one end of a lock. Locks and Dams 2 through 10 have utilized the same miter gates since their inception. Over time, distress has been observed and has led to serviceability and safety issues. The purpose of this project is to restore the gates, increasing longevity and operational readiness, while decreasing repair costs and downtime due to maintenance of failure.
The tow rail system is integral to the operation of each of the Mississippi River Locks and Dams 2 through 10. It is attached to the top of the lock guidewall and helps guide tows through the lock chamber. Each system is comprised of an operating unit, rail and traveling kevel or “mule.” The Locks and Dams 2 through 10 tow rail systems have been deteriorating over the past several years, requiring rehabilitation of these systems.
Pigs Eye Lake is located in Ramsey County, just east of downtown St. Paul, Minnesota. Pigs Eye Lake is located in upper Pool 2 of the Mississippi River. Due to the lake’s close proximity to the Mississippi River, water level is controlled by the level of the river. The lake is located in the Mississippi River Bottomlands subwatershed.
The Pool 2 Dredged Material Management Plan (DMMP) study area is located between Lock and Dam 2 near Hastings, MN and extends upstream to Lock and Dam 1, river miles 815.2 to 847.7. The purpose of the DMMP is to prepare a coordinated long-term plan for managing dredged material in Upper and Lower Pool 2 of the Upper Mississippi River for the purposes of continued operation and maintenance of the Upper Mississippi River 9-Foot Channel Navigation Project.
This project will notch a series of wing dams throughout Pool 2 in order to improve main channel border habitat for fishes. Wing dam notching will enable downstream scouring, which creates overwintering habitat. The project area is in the middle and lower half of Pool 2, Upper Mississippi River, downstream of St. Paul, Minnesota; spanning Dakota, Ramsey and Washington counties, Minnesota.
The St. Paul Small-Boat Harbor is on the lower end of Harriet Island in St. Paul, Minnesota, at Upper Mississippi River mile 839.6 on the right descending bank. The length of the harbor is 2,375 feet; the width varies from 200 to 400 feet. The Corps of Engineers is authorized to maintain the harbor to a depth of 5.0 feet below low control pool elevation of 687.2 feet mean sea level (msl). The city of St. Paul is the non-Federal sponsor for the project and is required to furnish a suitable placement site for the dredged material.
Zebra mussels (Dreissena polymorpha) in the Upper Mississippi River are a significant threat to the endangered Higgins eye pearlymussel (Lampsilis higginsii) and winged mapleleaf (Quadrula fragosa). The U.S. Army Corps of Engineers, St. Paul District and Engineer Research and Development Center are conducting a study in cooperation with the U.S. Fish and Wildlife Service; the National Park Service; the Departments of Natural Resources from Minnesota, Wisconsin, and Iowa; and the Great Lakes Indian Fish and Wildlife Commission. Recommended management alternatives outside the Corps’ existing authorities would need to be implemented by others.
The St. Paul District is authorized to maintain a 9-foot navigation channel on the St. Croix River from the mouth at the confluence with the Mississippi River near Prescott, Wisconsin, to river mile 24.5 near Stillwater, Minnesota. The authorized width is 200 feet. A 3-foot channel is authorized from river mile 24.5 to river mile 51.8 near Taylors Falls, Minnesota. The authorized width for this reach is 25 feet, and the controlling depth is 1 foot at extreme low water.
The Tribal Partnership Program is authorized by Section 203 of the Water Resources Development Act of 2000. The Tribal Partnership Program provides authority for the U.S. Army Corps of Engineers in cooperation with Indian nations to study and determine the feasibility of carrying out projects that will substantially benefit Indian nations. Activity may address (A) projects for flood damage reduction, environmental restoration and protection and preservation of cultural and natural resources; (B) watershed assessments and planning activities; and (C) such other projects as the Corps, in cooperation with Indian tribes and the heads of other federal agencies, determines to be appropriate.
The St. Paul District is responsible for maintaining 244 miles of the Upper Mississippi River 9-foot channel navigation system from the head of navigation in Minneapolis, Minnesota, to Guttenberg, Iowa. The project is located in or contiguous to Minnesota, Wisconsin and Iowa. The navigation project within the St. Paul District includes 13 sets of locks and dams that are operated and maintained by the U.S. Army Corps of Engineers. In addition to the locks and dams the project includes channel maintenance, recreation and natural resource activities.
The U.S. Army Corps of Engineers, St. Paul District is responsible for maintaining 244 miles of the Upper Mississippi River 9-foot channel navigation system from the head of navigation at Minneapolis, Minnesota, to Guttenberg, Iowa. The navigation system also includes the lower navigable portions of the Minnesota, St. Croix, and Black Rivers.
Navigation and Ecosystem Sustainability Program (NESP) is a long-term program of ecosystem restoration and navigation improvements for the Upper Mississippi River System (UMRS). NESP will improve system capacity and reduce commercial traffic delays through construction of seven new 1,200-foot locks, mooring cells, and switchboat implementation.
The Upper St. Anthony Falls Lock and Dam is part of the Inland Waterway Navigation System of the Upper Mississippi River Basin. The Tainter gate’s electrical control system has not been upgraded for many decades. Attempts to operate the gate have failed on various occasions and reliability is a concern. There is also question over the condition of the system’s hydraulics because the ram cylinder rooms and operating machinery rooms are constantly wet.