prepared by State Dept. of Highways, Division of Highways, State of Colorado, Planning and Research Division ; in cooperation with U.S. Dept. of Transportation, Federal Highway Administration., Description based on print version record.
video file MPEG 488MB, Pipe underdraining -- Pavement based drains -- French drain -- Storm sewer underdrain., Title handwritten on disc., Produced by Colorado Department of Highways., Based on DVD record
Herbert N. Swanson., Prepared in cooperation with the Federal Highway Administration., "October 1985.", Interim report., Cover., Print version record., Technical Report number: CDOH/DTP/R-85/12.
David B. Woodham., Prepared in cooperation with the Federal Highway Administration., Cover title., "March, 1986.", Final report., Technical Report number: CDOH/DTP/R-85/4., Print version record.
John Kiljan., "February, 1989.", In cooperation with the Federal Highway Administration., Cover title., Final report., Technical Report number CDOH-DTD-R-89-4., Print version record.
Charles W. Smith., "December 1982.", In cooperation with the Federal Highway Administration., Cover title., Final report. Sept. 1981-June 1982., Report no. CDH-DTP-R-82-10, Print version record.
prepared by the TRG Recreation Subcommittee [and DeLeuw, Cather & Co.] for the Colorado Division of Highways., "November 11, 1976.", Print version record.
