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  • ANS Acoustic Telemetry Fact Sheet

    OverviewTelemetry is an automated communications process used to collect data remotely by a monitoring system.  The Chicago District Telemetry Monitoring Project implants fish with individually-coded, ultrasonic transmitters in the Upper Illinois Waterway (IWW) and Chicago Area Waterways System (CAWS) to track patterns of fish activity. Transmitted

  • ANS Electrofishing Fact Sheet

    OverviewElectrofishing is a monitoring tool that uses a pulsed direct current electric field, emitted from a boat mounted generator powered pulser to temporarily stun fish. The fish can then be collected via dip net to allow biologists the opportunity to identify species.  Electrofishing is used by the Asian Carp Regional Coordinating Committee’s

  • ANS Frequently Asked Question

    Frequently Asked QuestionsWhat are you doing to prevent the spread of Asian carp?The Corps is committed to sustaining our water resources and protecting our natural treasures, our Great Lakes.The Corps is a member of the Asian Carp Regional Coordinating Committee, which is comprised of various federal and state agencies with niche roles and

  • Aquatic Nuisance Species

    Aquatic nuisance species are nonindigenous species that threaten the diversity or abundance of native species or the ecological stability of infested waters, or commercial, agricultural, aquacultural or recreational activities dependent on such waters. See Section 1003(2) of the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990, 16 U.S.C. § 4702(1) (2010).

  • Big Suamico River

    Serves as a shallow draft recreational harbor. Project depth is 8 feet throughout. Approximately 3,700 feet of maintained federal channel.

  • Burns Waterway Harbor

    Serves as a commercial harbor. Project depth is 30 feet in the approach channel, 28 feet in the outer harbor, and 27 feet in both harbor arms.

  • Burns Waterway Small Boat Harbor

    Serves as a recreational harbor. Project depth is 11 feet in the approach channel, 10 feet in the inner harbor, and 6 feet in the river channel.

  • Calumet Harbor

    Serves as a commercial harbor. Project depth is 29 feet in the approach channel, 28 feet in the outer harbor, and 27 feet in the main river channel. Approximately 12,153 feet of steel sheet pile and timber crib breakwater structures. The federal navigation channel within the harbor is 4.4 miles long.

  • Calumet Harbor Dredging

    A Dredged Material Management Plan (DMMP) was approved in September 2020 that identified vertical expansion of the current facility as the lowest cost, environmentally acceptable alternative for managing dredged sediment for the next 20 years.

  • Calumet Region Enviromental Infrastructure

    This project provides technical planning, design and construction assistance to non-federal interests who have environmental infrastructure needs across Benton, Jasper, Lake, Newton and Porter Counties, Indiana.

  • Chicago Area Waterway

    Stages, flows, and basin precipitation for Lake Michigan, Chicago River, Des Plaines River, Chicago Sanitary and Ship Canal, Little Calumet River, Thorn Creek, Hart Ditch, Fox River, Du Page River, and Kankakee River.

  • Chicago District Locks

    The Chicago District operates three locks within our district footprint, the Chicago Lock, The Lockport Lock, and the T.J. O'Brien Lock.

  • Chicago Harbor

    Authorized as a commercial harbor. Project depth is 29 feet in the Lake Michigan harbor approach, 28 feet in the outer harbor, and 21 feet to Rush Street.

  • Chicago Harbor Lock

    The Chicago Harbor Lock is located in the city of Chicago – adjacent to Navy Pier – and separates the waters of the Lake Michigan basin from the Chicago River.

  • Chicago River

    The project consists of a river navigation channel that is 2.97 miles long at -21.0 ft LWD from Michigan Avenue to North Avenue. A navigation channel approximately 3.7 miles at -9.0 ft LWD deep from North Avenue to Addison Street is also authorized, but not constructed. The project includes a perpetual responsibility for water control and emergency monitoring of the waterways within the Chicago District.

  • Chicago Sanitary and Ship Canal (CSSC) Dispersal Barriers

    The Chicago Sanitary and Ship Canal (CSSC) is a man-made waterway that connects the Chicago and the Des Plaines Rivers forming an aquatic connection between Lake Michigan and the Mississippi River basin. Dispersal barriers were constructed to generate an in-water electric field to prevent the spread of invasive fish species between these watersheds.

  • Chicago Shoreline

    The project non-federal sponsors are required to complete the remaining two segments of the project, Morgan Shoals (45th to 51st Street) and Promontory Point segment (54th to 56th Streets), with Corps oversight at their expense to fulfill their obligations under the existing PCA. However, WRDA 2022 language directs the Corps to cost share the Locally Preferred Plan for those two remaining segments.

  • Chicago Shoreline General Reevaluation Report

    This project will address significant coastal storm damage experienced along at-risk reaches of the shoreline of Lake Michigan. The study will reevaluate the remaining unconstructed components of the authorized project and other coastal storm damage risk including portions of Lake Shore Drive, Sheridan Road, South Water Purification Plant, and La Rabida Children’s Hospital.

  • Chicago Waterways Restoration Framework Plan

    In April 2019, USACE received a request under the Planning Assistance to States authority to assist the City of Chicago’s Department of Planning and Development (DPD) in updating and expanding physical and social data on the inland waterways. Given the input from the River Ecology and Governance Task Force, DPD requested assistance in developing a comprehensive planning framework for the Chicago waterways. USACE and DPD invited the Metropolitan Water Reclamation District of Greater Chicago (MWRD), the Forest Preserve District of Cook County (FPDCC), and the Chicago Park District (CPD) to join the partnership, starting a robust collaboration to develop the Chicago Waterways Restoration Framework Plan.

  • Floodplain Management Services Program

    Most people know that the U.S. Army Corps of Engineers builds water resource projects, like dams and levees. Not so well known; however, is that the Corps also provides assistance to help states, eligible Native American Tribes, and local governments prepare their own plans and initiate their own actions to manage water and related land resources.

  • Fox River Connectivity & Habitat Study, IL

    The Fox River Connectivity and Habitat Study Area includes a reach of 10 dams from Algonquin in McHenry County to the Montgomery Dam in Kane County.

  • Fox River, Wisconsin

    The Fox River extends approximately 40 miles from Lake Winnebago to Green Bay. The project includes 9 dams and 17 locks . These features are maintained for flood control, water supply, and power generation.

  • Green Bay Harbor

    Serves as a deep draft commercial harbor. Project depth is 26 feet for about 11.5 miles upstream from the entrance channel, 24 feet from Grassy Island to 0.5 miles upstream from the mouth of the Fox River, and 22 feet 0.5 miles upstream of the river mouth to 3.3 miles upstream of the river mouth.

  • Indiana Harbor

    Serves as a commercial harbor. Project depth is 29 feet in the approach channel, 28 feet in the turning basin, 27 feet in the outer dock area, and 22 feet within the main and two branch channels.

  • Kenosha harbor

    This harbor is a deep draft commercial harbor that primarily serves recreational users, but also supports transitory barge traffic. Project depth is generally between 25 and 27 feet.

  • Kewaunee Harbor

    This project is a deep draft harbor that primarily serves recreational users, but also supports transitory barge traffic. The project depth throughout the harbor is 20 feet.

  • Lake Winnebago

    This article provides notices, daily data tables, and charts of temperatures, levels, and flows for Lake Winnebago and connecting rivers.

  • Lockport Lock

    Opened in 1933, Lockport Lock & Dam is 35 miles downstream of T.J O’Brien Lock & Dam. The facility is a unit of the Inland Waterway Navigation System and is one of eight such facilities between Chicago and Versailles, Illinois. The lock is 110 feet wide by 600 feet long. Maximum vertical lift is 42.0 feet; the average lift is 39 feet.

  • Michigan City Harbor

    Shallow draft commercial harbor that primarily serves recreational uses. Project depth is 14 feet in the harbor entrance, 12 feet in the outer harbor, 10 feet in turning basin No. 1, 10 feet in Trail Creek from turning basin No. 1 to turning basin No. 2, and 6 feet in Trail Creek from turning basin No. 2 to E. Street.

  • Milwaukee Harbor

    Commercial harbor with project depths of 30 feet in the approach, 28 feet in the entrance channel, 27 feet in a major portion of the south basin, and 21 feet in the north basin. Over 21,000 feet of structures including breakwaters, piers, and revetments.

  • Northerly Island

    The project area is a 91-acre peninsula found on the shores of Lake Michigan. The project restoration was primarily on the south side of the island and encompasses approximately 40 acres of land.

  • Oconto Harbor

    Serves as a shallow draft harbor primarily serving recreational users. Project depth is 15 feet. Approximately 4,800 feet of federal navigation channels.

  • Pensaukee Harbor

    Serves as a shallow draft recreational harbor. Project depth is 8 feet. Contains nearly one mile of federal navigation channel stretching from the mouth of the Pensaukee River into Lake Michigan.

  • Port Washington Harbor

    Port Washington serves as a deep draft commercial harbor. Project depth is 21 feet at the entrance to the harbor and in the inner channels and 18 feet in the inner basins. Project depths providing access to the marina and launch ramp vary between 8 and 10 feet.

  • Santiago Creek

    The purpose of the SARMP, including the Santiago Creek component, is to provide flood risk reduction to areas susceptible to flooding within the counties of San Bernardino, Riverside, and Orange. The need for the project is due to significant flooding along the Santa Ana River – including Santiago Creek – within Orange, Riverside, and San Bernardino counties in California, which has been documented since at least 1897.

  • Sheboygan Harbor

    Deep draft commercial harbor with 4,000 linear feet of federal channel. Authorized project depth is 25 feet in the entrance channel, 21 feet in the inner harbor channel and turning basin up to the 8th Street bridge, and 15 feet upstream of the 8th Street bridge.

  • South Branch Pike River

    The South Branch Pike River is in a rapidly urbanizing watershed with substantial urban and agricultural lands.The purpose of the project is to restore approximately 246 acres of habitat through restored hydrology, channel modification, in-stream structures, and native plantings. Current StatusThe PPA was executed on 3 May 2022. The design is in

  • Sturgeon Bay Lake Michigan Ship Canal

    Serves as a deep draft commercial ship canal with 8.5 miles of federal channel. Authorized project depths of 22 to 23 feet in the entrance channel and canal; 20 feet in the turning basin at Sturgeon Bay.

  • T.J. O'Brien Lock

    The T.J. O’Brien Lock and Controlling Works is located at the entrance to Lake Michigan (River Mile 326.0), Calumet River, in Chicago, Illinois. The facility is a unit of the Inland Waterway Navigation System and is one of nine such facilities between Chicago and Versailles, Illinois.

  • Thornton Reservoir

    The Thornton Reservoir significantly reduces overland and basement flooding by protecting 35,090 structures. It also improves the quality of area waterways by significantly reducing the backflow of untreated sewage into Lake Michigan and by storing combined sewer overflow during floods before release to the Calumet wastewater treatment plant. The original 14,600 acre-feet reservoir was increased by 9,600 acre-feet to a total volume of 24,200 acre-feet (7.9 billion gallons) for the new “composite” reservoir.

  • Washington Island

    Consists of two recreational harbors: Detroit Harbor and Jackson Harbor. The project depth of Detroit Harbor is 14 feet, and the project depth of Jackson Harbor is 12 feet. There are approximately 4,000 feet of maintained federal channel.

  • Water Management - Chicago Area Waterway

    Chicago Area Waterway Stages and Flows

  • Waukegan Harbor

    Serves as a deep draft commercial harbor. Project depth is 22 feet in the Lake Michigan harbor approach and 18 feet in the channel.
Chick Lock

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