Visitor rating
This program shows why proper soil and topographic studies are important to complete planning of highways before the highway is built.
National Audiovisual Center, 5285 Port Royal Rd., Springfield, VA 22161, Phone: (703)605-4603, Toll-free: 800-553-6847, Fax: (703)321-8547, Email: orders@ntis.fedworld.gov, URL: http://www.ntis.gov/products/nac/index.asp
Available on VHS
Running time 20 minutes.
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