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  • Hydrographic Surveys (eHydro)

    Access official hydrographic survey data and channel condition reports for USACE navigation projects through the eHydro Dashboard. View survey results, channel depths, and dredging information for all Great Lakes and Ohio River Division waterways. eHydro is the authoritative source for all USACE hydrographic survey data per ER 1110-2-8164.

  • Navigation Charts (IENC)

    Download official Inland Electronic Navigation Charts (IENC) for safe navigation on inland waterways. IENCCloud.us is the only authorized source for USACE navigation charts. Charts are updated regularly and available for free download. Compatible with electronic chart display systems.

  • Notices To Navigation Interests (NTNI) Portal

    View current Notices to Navigation Interests (NTNI) published by the USACE Navigation Data Center. Find information about channel closures, lock and dam status, navigation hazards, chart updates, and dredging operations.

  • Regulatory Request System (RRS) Public Notices

    Search all active permit applications for Section 404 (wetlands), Section 10 (navigable waters), and Section 408 (alterations to USACE projects) in the official Regulatory and Response System (RRS). View permit details, submit comments during public comment periods, and track application status. RRS is the authoritative source for all USACE regulatory permits.

  • Water Management Data (CWMS)

    Access real-time water level data, reservoir operations, water releases, and forecasts for all USACE projects through the Corps Water Management System (CWMS). View current gage readings, historical data, and operational schedules. CWMS is the authoritative source for all USACE water management information per EM 1110-2-3600.

  • Draft Environmental Assessment: Section 594 New Marshfield Sewer Project, Athens County, Ohio

    The U.S. Army Corps of Engineers, Huntington District, announces the availability of a Draft Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) for the Section 594 New Marshfield Sewer Project in Athens County, Ohio. The proposed project involves construction of a new sanitary sewer force main and associated lift station upgrades to provide reliable wastewater infrastructure for residents. This project is Phase 2 of the Athens County Unsewered Areas Program, conducted in partnership with Athens County Commissioners under Section 594 of the Water Resources and Development Act (WRDA) of 1999. Public comments are being accepted during the review period.

    Section 594 New Marshfield Draft EA
    Section 594 New Marshfield Draft FONSI

  • NEPA Scoping Meeting for Grand River Upper Reach Revitalization Project - Grand Rapids, Michigan

    Expiration date: 6/22/2026

    The U.S. Army Corps of Engineers, Detroit District, is preparing an Environmental Impact Statement (EIS) for the Grand River Upper Reach Revitalization Project in Grand Rapids, Michigan. The project involves removing the 6th Street Dam and installing a new structure to control invasive sea lamprey while maintaining native fish passage and restoring aquatic habitat. A public scoping meeting will be held April 22, 2026, from 4-7 PM at Grand Rapids Public Schools University, 1400 Fuller Ave. NE. Public comments on alternatives and impacts are requested by May 22, 2026. Submit comments to Comments-Grand-River@usace.army.mil or mail to Mr. Hal Harrington, USACE Detroit District, 477 Michigan Avenue, Detroit, MI 48226.

    Grand River Upper Reach Revitalization: Sea Lamprey Control and Habitat Improvement Project

  • Pigeon River Flood Risk Management Study - Public Scoping Notice Letter

    Expiration date: 5/17/2026

    The U.S. Army Corps of Engineers (USACE) is seeking public comment for the Pigeon River Flood Risk Management Study in Haywood County, North Carolina. Provide your input on the plan to reduce flood risk and improve community resilience. Find details on how to submit comments and attend the public meeting in Waynesville.

    View Scoping Letter

  • Draft Environmental Assessment: Barcelona West Breakwater Repair Phase II, Barcelona Harbor, New York

    The U.S. Army Corps of Engineers, Buffalo District, announces the availability of a Draft Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) for Phase II repair of the Barcelona West Breakwater in Barcelona Harbor, Chautauqua County, New York. The proposed project involves placement of wave absorber stone overlay to reduce sediment transport and harbor shoaling. The public comment period runs from April 13, 2026 through May 11, 2026.

  • Kinzua Dam and Allegheny Reservoir Master Plan and Environmental Assessment Revision – Public Comment Period

    Expiration date: 5/15/2026

    The U.S. Army Corps of Engineers Pittsburgh District invites the public to review and comment on proposed revisions to the Kinzua Dam and Allegheny Reservoir Master Plan and Environmental Assessment. The 30-day public comment period is open from April 13 through May 15, 2026. The revision will guide the management of recreational activities and natural resources at Kinzua Dam and Allegheny Reservoir for the next 25 years. Documents are available online and at local libraries in Warren, PA and Salamanca, NY. Comments can be submitted via email to dll-celrp-ops-public-comment@usace.army.mil.

    Draft Environmental Assessment
    Draft Master Plan

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Consolidation of Studies

The Water Resources Development Act establishes a single-phase cost-shared study process that for each feasibility study undertaken, the district engineer will develop a detailed study schedule and notify the non-federal interests.

Overviews of study schedule milestones are posted below.