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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.

  • EVALUATING INNOVATIVE HAB CONTROL MEASURES IN PRESQUE ISLE BAY, LAKE ERIE, PA

    Expiration date: 3/11/2026

    This is a NEPA scoping information document that describes the studies planned to take place in Presque Isle Bay, Lake Erie, PA. The U.S. Army Corps of Engineers (USACE) and Princeton Hydro LLC are currently conducting a study to determine the feasibility of demonstrating the use of a clay to manage harmful algal blooms (HABs) in lacustrine systems.

    NEPA Scoping Document

  • IDENTIFICATION, TARGETED INTERVENTION, AND MONITORING OF HARMFUL ALGAL BLOOMS IN RIVERINE ECOSYSTEMS

    Expiration date: 3/10/2026

    This is the NEPA scoping information document for a study the the U.S. Army Corps of Engineers (USACE). The USACE and University of Toledo are currently conducting a study to determine the feasibility of demonstrating the use of various control methods to manage harmful algal blooms in riverine systems. The locations of study include aquatic sites located in multiple areas within the Maumee River watershed, along the Miami and Erie Canal, which have previously shown to be hotspots for blooms of cyanobacteria.

    NEPA Scoping Document

  • Notice of Availability: Final Environmental Impact Statement for the Enbridge Line 5 Tunnel Project

    Expiration date: 3/9/2026

    Announcement for the Notice of Availability of a Final Environmental Impact Statement for the Enbridge Line 5 Tunnel Project, Emmet and Mackinac Counties, Michigan. Detroit District, Permit Application No. LRE-2010-00463-56-A19. The Notice of Availability for the Final EIS was published in the Federal Register on February 6, 2026. The Final EIS is available for public review beginning on February 6, 2026, on the project website at www.line5tunneleis.com. The Final EIS addresses the potential environmental impacts of the proposed project and reasonable alternatives to the project. The Final EIS will inform USACE’s Record of Decision and permit decision on the application, which will be completed no sooner than 30 days after Final EIS publication.

  • Lake Winnebago Winter Coordination Meeting - February 18, 2026, 6 p.m.

    This is a public invitation to an interagency coordination meeting about water regulation operations for Lake Winnebago and the Lower Fox River. The virtual meeting, on February 18, 2026, will cover regulation actions from 2024-2025 and strategy for 2025-2026. The meeting is open to the public and provides an opportunity for stakeholders to engage with USACE water management operations.

  • Public Notice: Corps to conduct second five-year review at SLDA

    The U.S. Army Corps of Engineers Buffalo and Pittsburgh districts are conducting a second five-year review of the selected remedy for the Shallow Land Disposal Area (SLDA) Formerly Utilized Sites Remedial Action Program (FUSRAP) site.

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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.