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  • Overview of the Coastal STORM (CSTORM) Model Development for the Swan Island Restoration Study

    Abstract: This document summarizes the numerical model development and validation approach used to simulate the winds, waves, and water levels observed at Swan Island during two prominent historical storm events in the region: Hurricane Sandy and Hurricane Isabel. Using the Coastal STORM (CSTORM) Modeling System, which couples the Advanced Circulation (ADCIRC) and Steady-State Spectral WAVE (STWAVE) models, the North Atlantic Coast Comprehensive Study mesh and grid were refined in the area surrounding Swan Island. The nodal attributes of the ADCIRC mesh in the area surrounding Swan Island were updated to reflect the location of submerged aquatic vegetation around the island. ADCIRC-modeled water levels were in acceptable agreement with observed water levels during both storms, though peak water levels were slightly underpredicted. Similarly, STWAVE captured the phase and trends of the significant wave heights during the storm, while slightly underpredicting both significant wave height and peak period. The validated model will be used to investigate the effect of the restoration of Swan Island on the surrounding area. The results will help to develop guidelines for best practices in island restoration within the Chesapeake Bay and beyond.

  • Corps to discuss Willamette Valley reservoir refill, future operations during public info sessions

    With summer around the corner and outdoor enthusiasts gearing up for recreation season, the U.S. Army Corps of Engineers, Portland District, invites the public to learn what’s in store for Willamette Valley reservoirs this year.

  • USACE Little Rock Water Level App Re-Released

    The U.S. Army Corps of Engineers, Little Rock District, is excited to announce the re-release of the USACE Little Rock Water Level App, a trusted tool for anglers, navigators, paddlers, and park visitors across Arkansas and southern Missouri. Originally launched in 2013, the app has undergone a complete rebuild to improve performance, enhance user experience, and ensure reliable access to critical waterway data.

  • Corps of Engineers releases flows at Reservation Dam, Lake Traverse

    The U.S. Army Corps of Engineers, St. Paul District, is releasing a small amount of flow at Reservation Dam to help maintain Lake Traverse water levels. Additionally, during the winter months White Rock Dam is slightly open to drain Mud Lake, located near Wheaton, Minnesota.

  • Establishing a Workflow for Near-Seamless Digital Elevation Model Creation in the Great Lakes for ADCIRC Modeling

    Abstract: This report introduces a workflow to create near-seamless, regional digital elevation models (DEMs) for use in coupled Advanced Circulation and Simulating Waves Nearshore modeling. The workflow is based in Esri ArcGIS Pro, leveraging the Mosaic Dataset architecture to organize and mosaic survey data sets into near-seamless DEMs. This workflow includes data collection and preprocessing, creation of source and derived mosaic data sets, manual editing of the data set seamlines, the creation of spatial metadata products, and quality assurance and control measures. These steps were implemented for each Great Lake to provide a high-resolution, near-seamless DEM product for modelers. The workflow may also have utility for other regional-scale investigations.

  • Seasonal regulating stage change on the White River begins December 1, 2024

    The U.S. Army Corps of Engineers wants to remind the public that the seasonal regulating stage for the White River at Newport and Georgetown, Ark. will increase from 12 feet to 24 feet effective Dec. 1, 2024.

  • USACE invites public to Rogue River Basin reservoir levels info session

     Water managers from the U.S. Army Corps of Engineers (USACE) invite the public to an online information session to learn about the summer reservoir forecast for Lost Creek and Applegate lakes at 6 p.m. on Thursday, June 6.

  • USACE invites public to Willamette Valley reservoir levels info session

    Water managers from the U.S. Army Corps of Engineers (USACE) invite the public to an online information session to learn about the summer forecast for the Willamette Valley System (WVS) of dams and reservoirs.

  • Dworshak announces a few changes at Dent Acres Recreation Area

    AHSAHKA, Idaho – As the weather warms up, Dworshak Dam would like to make a few announcements concerning Dent Acres Recreation Area.

  • USACE cautions lake users on low water conditions at Beaver Lake

    The U.S. Army Corps of Engineers is cautioning boaters about low water conditions at Beaver Lake.