U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
|Accelerating Infrastructure Innovations|
Publication Number: FHWA-HRT-04-024
Date: April 2004
The Federal Highway Administration's (FHWA) Pavement Recycling Team recently completed a year-long review of recycled concrete aggregate (RCA) state-of-the-practice use by five State transportation departments. "The review's goal was to identify the current state of use and then transfer that knowledge to other State highway agencies," says Jason Harrington of FHWA.
Soils for highway embankments often deteriorate over time because of repeated wet-dry and freeze-thaw cycling. This eventually leads to recurring surface slope failures when the strength of the soil deteriorates to the point where it can no longer maintain stability. A popular technique for stabilizing new embankments or strengthening older slopes is soil nailing, which reinforces the earth slopes with arrays of slender pins driven or drilled into the soil.
Now available from the Federal Highway Administration (FHWA) is the fourth edition of Fly Ash Facts for Highway Engineers (Publication No. FHWA-IF-03-019). Produced in cooperation with the American Coal Ash Association and the U.S. Environmental Protection Agency, the publication provides basic technical information about the many ways that fly ash can be used in highway construction.
How would you like it if someone drove through your office? The Federal Highway Administration (FHWA), American Traffic Safety Services Association (ATSSA), American Association of State Highway and Transportation Officials, and other partners will kick off National Work Zone Awareness Week (NWZAW) on April 6 by asking that question at a media event in Springfield, Virginia.
The Federal Highway Administration's (FHWA) Office of Asset Management is now offering a 1-day workshop for State and local governments on Economic Analysis for Highway Decision Makers. The free workshop covers a broad range of economic subjects, including inflation, life-cycle cost analysis, benefit-cost analysis, traffic forecasts, and risk analysis. No prior training in economics is required. For more information, contact your local FHWA Division Office or Eric Gabler at FHWA, 202-366-4036 (email: firstname.lastname@example.org).