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  • Evaluation of Thin Flexible Pavements under Simulated Aircraft Traffic

    Abstract: A full-scale airfield pavement test section was constructed and trafficked by the U.S. Army Engineer Research and Development Center (ERDC) to evaluate the performance of relatively thin airfield pavement structures. The test section consisted of 16 test items that included three asphalt pavement thicknesses and two different aggregate base courses. The test items were subjected to simulated aircraft traffic to evaluate their response and performance to realistic aircraft loads and to evaluate the effect of reductions in tire pressure on thin asphalt pavement. Rutting behavior, pavement cracking, instrumentation response, and falling weight deflectometer response were monitored at selected traffic intervals. The results of this study were used to extend existing Department of Defense pavement design and evaluation techniques to include the evaluation of airfield pavement sections that do not meet the current criteria for aggregate base quality and minimum asphalt concrete surface thickness. These performance data were used to develop new aggregate base failure design curves using existing stress-based design methodology.

  • Environmental Quality Requirements Model Program Objective Memorandum Fiscal Years 2021–2025

    Abstract: This document describes the methodology used to evaluate the costs incurred by organizations involved in planning, programming, budgeting, and execution of the Army’s environmental programs and estimating those costs for future year planning cycles, this model is referred to as the Environmental Quality Requirements Model (EQRM). The EQRM is used to develop the budget positions as presented to Congress to obtain the Operations and Maintenance appropriations. These appropriations fund the Environmental Quality Program which includes Compliance, Conservation and Pollution Prevention requirements. The model encompasses the commands under the funding structure of the Deputy Chief of Staff – G9 Installations which includes the following: Installation Management Command, the Army National Guard, the Army Reserve Command, and the Army Materiel Command.

  • USACE Vicksburg District announces Youth Waterfowl Hunt at Grenada Lake

    VICKSBURG, Miss. – The U.S. Army Corps of Engineers (USACE) Vicksburg District announces that Grenada Lake will hold its annual youth waterfowl hunt in January.

  • Esper seeks permit for proposed work near Nauset Light in Eastham, Massachusetts

     The U.S. Army Corps of Engineers, New England District received a permit application from Gary

  • McAlpine’s north chamber reopens to navigation traffic

    The 1,200 foot-north chamber at McAlpine Locks and Dam on the Ohio River in Louisville, Kentucky,

  • Corps extends public commenting period for the Mojave Dam Master Plan revision

    The U.S. Army Corps of Engineers Los Angeles District, is extending the public commenting period as part of the process to revise the Mojave Dam Master Plan to Jan. 8.

  • Crowded crest in Portland confronts crafty crew of engineers, planners

    The Portland Veterans Affairs Medical Center campus sits on a 450-foot-tall basalt-rock hill south of downtown. Marquam Hill, also known as “Pill Hill” due to the amount of medical facilities clustered on its crest, is also crowded with homes, steep slopes and daily commuters (during non-pandemic times). These steep and rocky slopes garnered ridicule for Dr. Kenneth Mackenzie when he initially proposed to build a medical school on Marquam in 1914. According to Oregon Health and Science University’s historical collections, “The land, unusable to the railroad company, came to be known as ‘Mackenzie’s Folly’ in reference to its location on an inaccessible hilltop.”

  • Army Corps opens Raystown Lake recreation areas for Canada goose hunting season

    The U.S. Army Corps of Engineers at Raystown Lake announces the opening of recreation areas to Canada goose hunting, starting Monday, Dec. 14, 2020, to Jan. 16, 2021.

  • Toad Suck Park reopening Dec.15

    The U.S. Army Corps of Engineers, Little Rock District announces that beginning Dec. 15, Toad Suck Park near Conway, Arkansas will be available for reservations.

  • Corps of Engineers to begin maintenance on Salt Creek Dams’ plunge pools

    LINCOLN, Neb.— The U.S. Army Corps of Engineers, Omaha District announced that it will begin maintenance on the downstream conduit outlet plunge pools Jan. 4, 2021 at the following Salt Creek Dam sites: 8, Wagon Train; 9, Stagecoach; 10, Yankee Hill; 12, Conestoga; and 13, Twin Lakes.