Engineering solutions to environmental constraints :
Engineering solutions to environmental constraints : I-70 over Vail Pass /
Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
- Washington, D.C. : National Academy of Sciences, 1979.
- iii, 47 p. : ill. ; 28 cm.
0309029678
Express highways--Design and construction.--Colorado--Vail Pass
Roads--Environmental aspects--Colorado--Vail Pass.
MCE
625.709788 / NAT
0309029678
Express highways--Design and construction.--Colorado--Vail Pass
Roads--Environmental aspects--Colorado--Vail Pass.
MCE
625.709788 / NAT