Rocks bed   Roads & Bridges October 2004   Stephen N. Valero, P.E., Contributing Author
A reduction of just 1 in. of aggregate thickness per existing rural lane-mile in the U.S. would have saved more than 2 billion tons of aggregate.

Recovery Room   Roads & Bridges August 2004   Rebecca A. Embacher andDavid A. Van DeusenContributing Authors
Minnesota allows eight weeks, but researchers suggest more time for aggregate-surfaced roads to regain strength for unrestricted loads

Serving rocky roads   Roads & Bridges June 2003   Ken Skorseth, Contributing Author
Unpaved roads tend to be a forgotten portion of the transportation grid in the U.S. There is little technical information or support to assist local agencies in managing and maintaining these roads. Consequently, it becomes a "seat-of-the-pants" system of management in many cases.