The purpose of this study was to determine the feasibility of predicting quantities of rippable and non-rippable rock on proposed construction projects, using seismic soundings supplemented by test borings and electrical resistivity measurements. Six projects scheduled for construction in different geologic settings were selected for investigation and field work has been completed on all six. To date, only three of the projects have been constructed. Non-rippable material was encountered on only two of the projects constructed, and it was found that the distribution of this material was erratic due to the geologic conditions present., prepared by State Department of Highways, Division of Highways, State of Colorado Materials Division Engineering, Geology Unit ; in cooperation with U.S. Department of Transportation, Federal Highway Administration Bureau of Public Roads., "October 1969.", Includes bibliographical references (leaf 28)., Final report, Print version record.
Mark C. Safford [and] Herbert N. Swanson ; prepared for U.S. Federal Highway Administration., "December 1973.", Includes bibliographical references (page 11)., Cover., Final report., Report No. CDOH-P&R-R&SS-73-7, Print version record.
Charles W. Smith., "August, 1983.", In cooperation with the Federal Highway Administration., Cover title., Initial report. May-Aug. 1983., Report no. DTFH 71-82-939-CO-02, Print version record.
Werner Hutter., "Prepared in cooperation with the U.S. Department of Transportation, Federal Highway Administration.", Includes bibliographical references., Cover title., Report no. CDH-DTP-R-83-2., Print version record.
by Burrell B. Gerhardt ; prepared for Federal Highway Administration, Office of Development., Report number hand written on cover: CDOH 72-11., "Presented during Workshop on Expansive Clays and Shales in Highway Design and Construction, Denver, Colorado, December 13, 14, and 15, 1972." -- Cover., Report proceeded by 2 letters from the Federal Highway Administration which both published in 1973., Online resource; title from PDF cover (viewed September 2022)
Keith W. Berry., "April 1984.", In cooperation with the Federal Highway Administration., Includes bibliographical references., Final report., Cover title., Technical Report number: CDOH/DTP/R-84/1., Print version record.
Ahmad Ardani., Prepared in cooperation with the Federal Highway Administration., "April, 1988.", Bibliography: page 22., Final report., Cover title., Technical Report number CDOH-DTD-R-88-11., Print version record.
Robert F. LaForce., "November 1983.", In cooperation with the Federal Highway Administration., Cover., Technical report number: CDH/DTP/R-83/13., Print version record.
prepared by the TRG Recreation Subcommittee [and DeLeuw, Cather & Co.] for the Colorado Division of Highways., "August 11, 1976.", Description based on print version record.
Werner Hutter and S.S. Jiang., "Prepared in cooperation with the U.S. Department of Transportation, Federal Highway Administration.", "April 1985.", Interim report., Cover., Report no. CDOH-DTP-A-85-9, Print version record.
"Effective September 1, 1989 the Standard Specifications shall be amended and supplemented with the revisions, deletions, and additions contained herein. This includes a complete replacement of the Section 100 General Provisions.", "September 1, 1989.", Description based on online resource; title from PDF cover (viewed October 2012)
Edwin M. Bullard., "Prepared in cooperation with the U.S. Department of Transportation Federal Highway Administration.", "October 1984.", Cover., Technical Report number: CDOH/DTP/R-84/20., Print version record.
[prepared for the Division of Highways, state of Colorado in cooperation with the U.S. Department of Transportation, the Federal Highway Administration, the Bureau of Public Roads, by Meurer, Serafini & Meurer, Inc.]., "The Columbine Freeway Study F004-1(48)."--Inserted transmittal letter., Cover title., Print version record.
by T. C. Reseigh, B. B. Gerhardt., "Prepared for the HRB Committee A2DO6 (Bituminous aggregate Base). To be presented to the Committee at: Highway Research Board Meeting, January 22, 1973.", Online resource; title from PDF cover (viewed September 2022), Report No. CDOH-P&R-R&SS- 73-2, Print version record.
by Denis Donnelly, Richard Griffin, Robert Barrett., Paper presented at the 1985 annual meeting of the Transportation Research Board, Washington, D.C., Includes bibliographical references., Cover., Print version record.
Richard G. Griffin, Jr., "December, 1982.", In cooperation with the Federal Highway Administration., Includes bibliographical references., Cover title., Technical Report number: CDOH/DTP/R-82/8., Print version record.
For many years the Colorado Division of Highways has been testing and evaluating different types of paint, glass beads, or other types of traffic marking materials as they come on the market., "Prepared for HRB Committee A2GO2 (Coatings, Signing & Marking Materials). To be presented to the Committee at Highway Research Board Meeting, January 24, 1973, ... Session No. 25.", Online resource; title from PDF cover (viewed August 2022), Report No. CDOH-P&R-R&SS73-1
