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Category: Chicago District
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  • Algoma Harbor

    Recreational harbor with a project depth of 14 feet for 2,000 feet of maintained channel. Dredged material is placed in an upland site provided by local stakeholders on an as needed basis. This harbor also serves as a harbor of refuge for recreational vessels.
  • 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).
  • Chicago Area Waterways System restoration and recreation study (CAWSRR)

    The U.S. Army Corps of Engineers (USACE) is working with local partners on a major project called the Chicago Area Waterways System Restoration and Recreation (CAWSRR) Study. Our goal is to improve aquatic habitat within the Chicago and Calumet rivers and increase public access and recreation opportunities along these river corridors. The CAWSRR Study builds upon decades of work by community, local, county, state, and federal partners that have significantly improved river conditions. However, aquatic habitat is still limited along these river corridors and restoration is necessary to sustain healthy aquatic communities.
  • 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 Sanitary and Ship Canal (CSSC) Dispersal Barriers

    A man-made waterway that connects the Chicago and 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.
  • Lake Michigan Diversion Accounting Program

    The diversion of water from the Lake Michigan watershed is of major importance to the Great Lakes states and to the Canadian province of Ontario. The states and province that border the Great Lakes have concerns with both diversions during periods of low lake levels, as well as the long term effects of diversion. To insure that the concerns of these interested parties are considered, the U. S. Army Corps of Engineers has been given the responsibility for the accounting of flow that is diverted from the Lake Michigan watershed.
  • Lake Winnebago

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

                                                                                                                                                                   (Draft conceptual rendering of dynamic revetment with step stone reconstructed from original 1930's limestone blocks.)Project Description and BackgroundThe Morgan Shoal Revetment
  • 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
  • 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.