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Author: Eileen Williamson, Public Affairs Specialist
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  • August

    The Vogele Super 1900-2 tracked paver being used by the Minot Air Force Base runway replacement asphalt subcontractor, Lagan, is a piece of equipment not commonly used in the central United States. The paver can set the base course, bring it to elevation, achieve up to 94 percent compaction and be used the next day to place asphalt. It is also capable of roller compacted concrete placement.

    Runway replacement project nearing completion

    The final phase of a three-phase $67 million program to completely replace the Minot Air Force Base, N.D., runway begain in April 2014. The $32.8 million construction contract is scheduled for completion in early October.

  • April

    Physical Anthropologist, Cathy Van Arsdale from the Mandatory Center of Expertise for the Curation and Management of Archaeological Collections in the St. Louis District, documents the condition of the arm bone and upper jawbone of the Wankel T.rex. She notes the condition of each element, which will be rechecked upon the collection's arrival in Washington D.C. at the Smithsonian's National Museum of Natural History

    Delicate dance with a dinosaur

    There are dozens of elements within the collection including pieces that are at least 5 feet long and take up the length of an entire crate and pieces that are smaller than 5 centimeters, wrapped in foil and paper and stored in sealed plastic bags. Following a checklist that identifies the crate, the box, the body part, and the bone piece; the team photographs and inspects the condition of each fossilized bone.

  • March

    An ice jam pushes water levels close to the top of the levee in Greybull, Wyo. Sandbagging crews from the Wyoming Department of Transportation and the Wyoming National Guard had placed sandbags in low or threatened areas along the Greybull levee at the instruction of John Bartel who was providing technical assistance from the Omaha District. National Weather Service Photo

    Greybull Levee performs as designed reducing risks from ice jam flooding

    While snowmelt and ice jam flooding can occur at any time, they typically occur during early spring thaw. Any ice jam can cause flooding or rapid increases in water levels within a short time period. Residents living near these rivers are reminded to monitor reports closely for ice jam flooding and be prepared to relocate to higher ground if flooding occurs. The levee in Greybull, Wyo., reduced risks to the town during recent ice jam flooding.
  • The scaffolding platform reaches first across the draft tube from the door and then builds out geometrically from the center structure. The hexagonal structure connects to anchor brackets on the draft tube wall and then supports a deck surface, which will accommodate scaffolding to provide safe access to the areas where cavitation impacts the turbine blade and the draft tube liner. Project crew members Mike Schnetzer and Dale Stibral place the scaffolding platform in the draft tube beneath the Kaplan Turbine at Gavins Point Dam.

    Project maintenance, cavitation repairs and OJT

    Among the various projects taking place at Gavins Point Power Plant, generator unit number three was recently dewatered to allow project crews to inspect the draft tube for damage caused by cavitation and make the necessary repairs. Cavitation repairs in the draft tube for unit three will continue through mid-March. Additional maintenance and rehabilitation projects are also underway at the Gavins Point project including replacing three power transformers and rehabilitating the spillway’s tainter gates. Work will move to unit two for annual generator maintenance, to install new un-watering and drain valves, to install a new motor control center, and replace switchgear equipment.

  • November

    Cherry Creek Dam Safety Exercise participants were taken through a high water scenario at Cherry Creek Dam, which was developed through the collaboration of Omaha District personnel representing offices such as Dam Safety, Emergency Management, and Water Management and the U.S. Army Corps of Engineers Readiness Support Center located in Mobile, Ala. (Photo by Eileen Williamson)

    Exercising Safety: Bear Creek, Cherry Creek and Chatfield dams catch floodwaters while reducing flooding risks

    A stalled front brings record rainfall to the Front Range of the Colorado Rocky Mountains. The runoff brings a surge of water through canyons and foothills and into major population centers of central Colorado. But, this surge of water happened only in a virtual environment. During the week of Aug. 19, several employees from the U.S. Army Corps of Engineers, Omaha District participated in a safety exercise focused on Cherry Creek Dam and Reservoir near Denver, Colo. – or more to the point, in the middle of the Denver metropolitan area.

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