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  • Development and Management of Arctic Zonal Characterization Products: Geospatial Database

    Abstract: Environmental parameters for operational planning in extreme conditions require accurate knowledge of prevailing meteorological conditions. However, the Arctic region presents unique challenges due to limited observational data and unique geographical conditions. To address the need for such knowledge, this study presents an analysis of Arctic prevailing-conditions using European Center for Medium-Range Weather Forecasting (ECMWF) Reanalysis v5 (ERA5) Data from 1991 to 2020. A custom Python-based framework was developed to process and analyze hourly datasets, identifying zones of extreme events and their frequency across multiple temporal scales. The framework uses ArcPy to automate the generation of nearly 40,000 mapped classifications for land masses 60°N and above. This automated pipeline enables both static and dynamic map generation capabilities for operational planning now and in the future. The resulting dataset provides critical spatial and temporal resolution of Arctic prevailing-conditions, enabling more refined characterization of extreme prevailing-conditions across the circumpolar region.

  • USACE continues mission-essential operations during lapse in appropriations

    The U.S. Army Corps of Engineers Pittsburgh District is announcing that all essential services will continue during the lapse in Fiscal Year 2026 funding and all navigation facility operations will follow their existing schedules.

  • USACE Seattle District critical infrastructures open during government shutdown

    Critical activities, including maintaining flood control infrastructure, operating hydroelectric dams, and ensuring safe vessel navigation, will continue without interruption. All dams and locks will operate normally, ensuring these vital systems remain safe and stable.

  • Wilson Lock expected to reopen soon

    FLORENCE, Ala. (June 26, 2025) – The U.S. Army Corps of Engineers Nashville District officials report that Wilson Lock at Tennessee River mile 259.4 is expected to reopen on or about June 30, 2025. 

  • Louisville District’s Humphrey selected as LRD Chief of Operations and Regulatory

    The U.S. Army Corps of Engineers (USACE) Louisville District’s Chief of Operations, Mr. Waylon Humphrey, has been selected to serve as the Chief of Operations and Regulatory for the USACE Great Lakes and Ohio River Division (LRD)

  • MKARNS Nav Notice No. SWL 25-38 Lock 1 Dewater Canceled

    The dewatering operation, scheduled for the fall of 2025, at Norrell Lock and Dam (NM 10.3) has been canceled.

  • Black Butte Lake recreation areas to close May 19

    Orland, CA — Three recreation areas at Black Butte Lake will temporarily close for the 2025

  • Lockport Lock Reopens After Temporary Repairs: Permanent Fix Scheduled for Fall

    Lockport Lock reopened Friday, April 4th, after undergoing a temporary closure for construction and repairs. The lock had been closed since January 28th for maintenance repairs and upper gate lift replacement. It was expected to reopen at the end of March, but severe cracking was found on the lower miter gates. Temporary repairs were made while parts are being manufactured for the permanent replacement.

  • Ranger leads the way: Kansas City District park ranger a proponent of cashless fee system

    In the U.S. Army, they say “Rangers lead the way.” In the U.S. Army Corps of Engineers, it’s often park rangers leading the way at our nation’s lake projects. At Rathbun Lake, located in southern Iowa, one park ranger is leading the way by being a proponent of the cashless fee system at the lake’s campgrounds and boat ramps. Since 2020, Ryan Vogt, natural resource specialist and park ranger at Rathbun Lake, has led the way in the Kansas City District for adopting a cashless fee system at both the lake project’s campgrounds and boat ramps. While many lake projects in the district’s area of responsibility have automated fee machines from which recreators can purchase recreation passes, Rathbun Lake is one of the first to have a cashless reservation system at its over 400 campsites.

  • Walla Walla District reopens navigation locks after extended outage; completes work on multiple BIL-funded projects

    COLUMBIA & SNAKE RIVERS, Ore. & Wash. – The U.S. Army Corps of Engineers Walla Walla District reopened navigation locks on the Columbia and Snake rivers on March 29 after an eleven-week outage. This extended outage allowed the district to perform routine maintenance and to replace aged equipment to reduce the risk of asset failure.