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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.

  • Operation and Maintenance Dredging and Dredged Material Placement – Cooley Canal Harbor, Lucas County, Ohio

    Expiration date: 5/11/2026

    The U.S. Army Corps of Engineers Buffalo District announces maintenance dredging of the federal navigation channel at Cooley Canal Harbor in Lucas County, Ohio. Approximately 10,000 cubic yards of sediment will be mechanically dredged to maintain sufficient depth for shallow-draft recreational vessels. Dredged material will be placed at an authorized open-water placement site in western Lake Erie.

  • Public Notice: Operations and Maintenance Wilson West Pier Repair, Town of Wilson, Niagara County, New York

    Expiration date: 5/7/2026

    The U.S. Army Corps of Engineers, Buffalo District, is providing public notice of proposed operations and maintenance activities at Wilson West Pier in the Town of Wilson, Niagara County, New York. This notice is issued pursuant to Section 404(a) of the Clean Water Act and 33 CFR 337.1 to inform the public of the planned discharge of stone materials into waters of the United States during pier repair work. The public is invited to submit comments or request a public hearing during the comment period.

  • Finding of No Significant Impact and Environmental Assessment for the Construction of a Phosphorus Optimized Wetland, St. Marys, Auglaize County, Ohio

    Expiration date: 5/16/2026

    This document contains the Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) for the proposed construction of two phosphorus-optimized wetlands in St. Marys, Auglaize County, Ohio, under the authority of Section 594 of the Water Resources Development Act (WRDA) 1999. The project is part of the Great Lakes Restoration Initiative (GLRI) to reduce phosphorus loads into the Maumee River watershed and Lake Erie.

  • Wolf Creek Dam Berm Remediation Review Plan

    This review plan outlines the quality review process for engineering and design products related to berm remediation and drainage improvements at Wolf Creek Dam, Jamestown, KY. It details project scope, risk assessment, review procedures (DQC, ATR, BCOES), schedules, and team roles to ensure dam safety and compliance.

  • Section 408 Request to Alter the Turtle Creek Local Protection Project for the Replacement of Natural Gas Lines

    Expiration date: 4/26/2026

    The U.S. Army Corps of Engineers (USACE) Pittsburgh District is evaluating a proposed alteration to the Turtle Creek Local Protection Project (LPP) by Peoples Natural Gas Company, LLC (PNG). PNG has submitted a request under Section 14 of the Rivers and Harbors Act of 1899 (33 U.S.C. Section 408) to the Pittsburgh District to alter the Turtle Creek LPP (approximate coordinates 40.406587° N, 79.826518° W) for the replacement of approximately 1,270 linear feet of bare steel natural gas pipeline. A new 12-inch and a 6-inch plastic line will be installed below Thompson Run via Horizontal Directional Drilling methods. Approximately 75 feet of each line below Thompson Run is subject to this Section 408 review.

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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.