menu
Change Location Change Location

You appear to be near: Central/Midwest

Please confirm or change to view projects in your region.

YOUR REGION

Central/Midwest
Confirm
  • Central/Midwest
  • Northeast
  • South
  • West
  • Canada
  • International

August 2011

Flood Protection System Beats Schedule

The results are in. Data from instruments installed within a big New Orleans levee has allowed the contractors to exceed ambitious schedule-compression goals. The team successfully employed a novel design based on miles of wick drains and geotextile fabrics. The system is achieving soil consolidation and strengthening faster than predicted.

“We're comparing theory to reality in performance,” says Richard Varuso, deputy chief of the U.S. Army Corps of Engineers' geotechnical branch in New Orleans. “Whenever you validate theory versus performance, the engineering community learns something.”

The amount of geotechnical data compiled from the levee reach known as LPV 109 already is informing the design of other projects, including plans to raise a 32-mile stretch of non-federal levees in Plaquemines Parish.

A conventionally built earthen levee comparable to LPV 109 would require a decade of incremental lift placements, separated by long pauses for natural soil compression. By using an elaborate wicking and drainage system rigged with instruments to report soil movement and consolidation within and below the structure, engineers fine-tuned the schedule with lead contractor Archer Western Contractors Ltd., Atlanta. They shaved work duration at sites along the 7.54-mile-long project to 45 to 60 days compared with the targeted 90 days.[read more]

Walsh

WALSH CONSTRUCTION

929 West Adams Street
Chicago, Illinois 60607
T: 312.563.5400
F: 312.563.5466

Walsh

ARCHER WESTERN

2410 Paces Ferry Road
Suite 600
Atlanta, Georgia 30339
T: 404.495.8700
F: 404.495.8701

Walsh

WALSH CANADA

36 York Mills Road
Suite 302
Toronto, Ontario M2P 2E9
T: 416.849.9000
F: 416.849.9100

©2016 The Walsh Group. An Equal Opportunity Employer, Disability/Veteran. All Rights Reserved.