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  • ​R3F Heavy Capacity Fleet Supports Markland Lock (LRL)

    ​The Heavy Capacity Fleet Unit (HCF) completed work ahead of schedule at Greenup Locks and Dam (LRH) and arrived safely at Louisville Repair Station (LRS) on 02 June 2020. While the fleet was on its return trip from Greenup, a small land based crew mobilized to Markland Locks and Dam (LRL) to change out upper emergency gate cables in the Auxiliary Chamber.

  • Vicksburg District announces changes to campgrounds length-of-stay policy at Mississippi lakes

    The U.S. Army Corps of Engineers (USACE) Vicksburg District has announced changes to the length-of-stay policy at its campgrounds at its Mississippi lakes – Arkabutla, Enid, Grenada and Sardis – that have gone into effect as of June 1.

  • Corps to Host Best Dam Graduation Ever

    The Warren Area High School’s Class of 2020 will drive, not walk, across a dam stage Friday, June 5, at 5:30 p.m. as the U.S. Army Corps of Engineers Pittsburgh District hosts the pandemic-inspired commencement at Kinzua Dam.

  • US Army Corps of Engineers Campground Openings at Carlyle Lake

    Carlyle Lake – The U.S. Army Corps of Engineers (USACE) at Carlyle Lake is pleased to announce the opening of campgrounds at Carlyle Lake for the recreation season at noon on Monday, June 1, 2020. This includes Dam West, Dam East Spillway, McNair, Coles Creek and Boulder campgrounds. In addition, all boat ramps, day use areas, and hiking and biking trails will continue to remain open. The Project Office, Visitor Center, Lotus Group Area, McNair Area C, beaches, playgrounds, and picnic shelters will remain closed. Special events, including USACE-sponsored events, interpretive programs, fishing tournaments, and dam tours are also on hold until further notice. All day use fees are waived through October 1, 2020.

  • PUBLICATION NOTICE: An Assessment of an Inexpensive COTS 360-degree Camera for Mapping and Localization in a GPS-denied Area

    Purpose: The efficacy of using a low Size, Weight, Power, and Cost (SWAP-C) Commercial off the Shelf (COTS) 360-degree camera was evaluated for localization and positioning in a GPS-denied environment. Specifically, OpenVSLAM was utilized to generate point clouds with negligible drift using a RICOH THETA S 360-degree field of view camera without the aid of an Inertial Measurement Unit (IMU). OpenVSLAM is also demonstrated to show that it can localize and position with a pre-generated map.

  • PUBLICATION NOTICE: Parallel File I/O for Geometric Models: Formats and Methods

    Abstract: Processing large amounts of data in a High-Performance Computing (HPC) environment can be throttled quickly without an efficient method for utilizing disk I/O. The Geometry Engine component of the Virtual Environment for Sensor Performance Assessment (VESPA) uses MPI-IO to load the geometric data in parallel and avoid creating a bottleneck on disk I/O interactions. This parallel I/O method requires formatting the data into specific binary file formats so each MPI process of the parallel program can determine where to read or write data without colliding with other MPI processes. Addressing the collision problem resulted in the development of two binary file formats, the Mesh Binary file (.mb) and the Scene Chunk Pack file (.scp). The Mesh Binary file contains the essential data required to recreate the landscape and vegetation geometry used by the Geometry Engine. The Scene Chunk Pack file is used to write the partitioned geometry to disk, so the ray casting engine can reload the distributed geometry without repeating the partitioning process. Both of these files together support reading and writing for the partitioning phase and the ray casting phase of the Geometry Engine. This report discusses these formats in detail and outlines how the Geometry Engine reads and writes these files in parallel on HPC.

  • PUBLICATION NOTICE: AIS Data: Real-Time Operation Support, Incident Investigations, and Waterway Use Analysis

    Abstract: This Coastal and Hydraulics Engineering Technical Note (CHETN) presents examples of Automatic Identification System (AIS) data and capabilities used to support real-time operations, assist in incident investigations, and contribute to waterways usage analysis projects for a variety of infrastructure management needs across the US Army Corps of Engineers (USACE). These case study presentations serve as examples for those who are new to AIS technology or navigation infrastructure operations.

  • City of Boston seeks permit for work on Northern Avenue Bridge in Fort Point Channel

    The city of Boston is seeking a permit from the U.S. Army Corps of Engineers, New England District

  • One lane of Highway 25 across Greers Ferry Dam to temporarily close

    HEBER SPRINGS, Ark. - The U.S. Army Corps of Engineers will temporarily close one lane of Highway 25 across Greers Ferry Dam from 7 a.m. June 15 until 5 p.m. August 10, to perform maintenance work on the roadway.

  • USACE Releases Draft Report on Valley Creek Study, with 30-Day Comment Period

    The Kansas City and Mobile Districts of the U.S. Army Corps of Engineers (USACE) have published a joint public notice in the Federal Register announcing a USACE draft integrated and environmental assessment for the Valley Creek Flood Risk Management Study in Jefferson County, Ala., on June 1, 2020.