Video Source: ENR.com.
Journal Article Reviews
Mitigation of Karst and Sinkholes for New Hospital Structure
The site for the new Harrison County Hospital, approximately 25-miles west of Louisville, Kentucky had 15 sinkholes formed by limestone dissolution, a geomorphologic process referred to as Karst topography. There were a number of geotechnical engineering and geological engineering challenges associated with the characterization, excavation, backfilling, foundation engineering and other mitigation measures as described by Peggy Hagerty Duffy, P.E. in her article entitled “Karst and Complications” in the August 2008 issue of Civil Engineering Magazine (Duffy, 2008b).
Mitigation measures for the sinkholes included use of graded filters with geotextiles, careful inspection of rock socket foundations along with pilot holes and careful geotechnical inspection throughout the construction process. One particularly interesting aspect of the project is that several of the sinkholes were used as drainage facilities to receive surface water runoff. Read on for a summary of this interesting article. (Photo of sinkhole in Karst Topography being used as a drainage feature, from Duffy (2008b), Civil Engineering Magazine)
Press Releases
Black & Veatch to design Chicago’s McCook Reservoir tunnel connection for USACE
Kansas City, Mo. (Aug. 5, 2009) – The U.S. Army Corps of Engineers (USACE) has selected Black & Veatch as the design engineer for the McCook Reservoir Main Tunnel. The new tunnel will connect the future McCook Reservoir to Chicago’s Deep Tunnel system, which is aimed at improving water quality in area rivers and Lake Michigan and reducing flood risk for the city of Chicago and suburban communities. [Editor] Read on for the rest of the press release. Photo copyright Black and Veatch[/Editor] […]
Press Releases
USACE Blasts Time Magazine Article
USACE responds to TIME magazine’s August 13, 2007, cover story, "The Threatening Storm"
WASHINGTON (August 13, 2007) – TIME magazine’s August 13, 2007, cover story, "The Threatening Storm," contains many errors and misrepresentations of facts with respect to the U.S. Army Corps of Engineers, Hurricane Katrina, and ongoing efforts to improve hurricane and storm damage reduction for southeast Louisiana.