This report evaluates the durability of mailboxes and energy absorbing mounting systems., Cover title., "September 2003.", "Report No. CDOT-DTD-R-2003-10.", Mode of access: World Wide Web.
Shows the mining techniques used to build the east tunnel of the Eisenhower Memorial Tunnel., presented by Federal Highway Administration in partnership with Colorado Division of Highways., video file MPEG 1289MB, "Produced by Morey Engle Productions; narration by Jim Redmond.", Produced by Morey Engle Productions, Title from opening screen., Based on DVD record
Ski areas and departments of transportation routinely use a variety of explosives-based and gas-based systems to generate overpressures resulting in loads sufficient to initiate snow avalanches. Various investigators including Johnson, Gubler, Miller, and Simione, explored phenomenon such as effect of blast height on snowpack response, snowpack acceleration as function of explosive blast, and air overpressures from select explosives or simulated remote avalanche control system (RACS) systems. But while there had been some fundamental research into general explosive effects, snow response and failure, there had not been an independent effort to examine the actual in-situ performance of various operational explosive delivery systems and technologies. The purpose of this study was to obtain in-situ measurement of overpressures developed during the operation of actual RACS installations. The study required development and deployment of a data collection system custom-designed for harsh environments, to be used to measure air pressures over snow during explosive events at a variety of test sites. The acquired measurements of the performance of a cross-section of available remote avalanche control systems provides the practitioner community with data quantifying RACS system performance, that may be helpful in making future system deployment decisions., Robb Larson, Brandt Seitz, Daniel Miller., "July 2022." -- Cover., "Report CDOT-2022-07.", "June 2022." -- Technical report documentation page., CDOT Study 5337.07, Online resource; title from PDF cover (viewed March 2025)
The United States must commit to metrication. Two overwhelming factors, the adoption of the metric system by the remainder of the world and the changing global economy, mandate that this nation must change. This Guide has been written to provide an explanation of the need for the change, and to serve as a resource to help bridge the gap between building roads in the English-based system of units and the Metric system. It is intended that this guide be used as a reference manual for CDOT employees in the Right-Of-Way, Design, Bridge, Materials, Traffic, Maintenance, Planning, and Environmental areas., "January 1994.", Online resource; title from PDF cover (viewed December 2015)
This research report used a pilot project to examine the Migratory Bird Treaty Act (MBTA) and how Colorado Department of Transportation (CDOT) transportation improvement projects may result in noise and vibration levels that could affect migratory birds. The pilot project examined the vibration and noise levels that occurred as a result of standard maintenance activities., Neal Goffinet and Tamara Keefe., "August 2018.", "Performing organization: Felsburg Holt & Ullevig.", Includes bibliographical references (pages 32-34), Report No. CDOT-2018-17, Online resource; title from PDF cover (viewed August 2019)
by Stephen M. Kalasz ... [et al.] ; prepared for Colorado Department of Transportation, Environmental Programs Branch ; prepared by Centennial Archaeology, Inc., Christian J. Zier, principal investigator., "Transportation Project IM 0252-360, I-25 Railroad Overpass.", Includes bibliographical references (p. 145-164).
by Stephen M. Kalasz ... [et al.] ; prepared for Colorado Department of Transportation, Environmental Programs Branch ; prepared by Centennial Archaeology, Inc., Christian J. Zier, principal investigator., "Transportation Project IM 0252-360, I-25 Railroad Overpass.", Includes bibliographical references (p. 145-164).
by Stephen M. Kalasz [and others] ; prepared for Colorado Department of Transportation, Environmental Programs Branch ; prepared by Centennial Archaeology, Inc., "Transportation Project IM 0252-370, I-25 Colorado Springs Design -Build.", Includes bibliographical references (pages 149-164)., Print version record.
by Stephen M. Kalasz [and others] ; with contributions by Danny N. Walker ; prepared for Colorado Department of Transportation Environmental Programs Branch ; prepared by Centennial Archaeology Inc., Chapter 1: Introduction -- Chapter 2: Environment -- Chapter 3: Culture history -- Chapter 4: Research Orientation -- Chapter 5: Field and laboratory techniques -- Chapter 6: Field investigations -- Chapter 7: Synthesis, interpretations and management recommendation -- References cited. CDRom: Guide to appendixes and associated codes -- Appendix A: Radiocarbon analysis data --Appendix B: Lithic analysis data -- Appendix C: Faunal analysis data., "August 2008.", "Colorado Department of Transportation project IM 0252-391, Ridgegate Interchange.", "All Work Performed under the terms and Conditions of State of Colorado Archaeological Permit No. 2006-74.", Includes bibliographical references (pages 289-324)., Print version record.
"November 2006.", "Report No. CDOT-2006-11, Final Report.", "Sponsored by: Colorado Department of Transportation in cooperation with the US Department of Transportation, Federal Transit Administration.", Authored by: Brendon Harrington, Matthew Kaufman, Rick Evans., Mode of access: World Wide Web.
In this study, the Regional Transportation District's (RTD's) light rail operations were examined for pollutant production and runoff. Conclusions from the study: Water leaving ballasted tracks carries only a small fraction of the heavy metals that are introduced into tracks from the light rail operations. Heavy metal concentrations at the most heavily traveled light rail station showed that pollutant concentrations were far below the regulatory limits., "August 2012.", "Report No. CDOT-2012-7. Final Report.", "Prepared in cooperation with the US Department of Transportation, Federal Highway Administration.", Mode of access: World Wide Web., Includes bibliographical references (p. 47)
In this study, the Regional Transportation District's (RTD's) light rail tracks were modeled to determine the Rational Method runoff coefficient, C, values corresponding to ballasted tracks. The runoff coefficient for ballasted tracks is significantly larger than the previously tabulated values for railroad yards. The higher runoff coefficient reflects the design of ballasted tracks to drain rainfall as quickly as possible., "August 2012.", "Report No. CDOT-2012-8. Final Report.", Description based on online resource; title from PDF cover; (viewed January 2012), "Prepared in cooperation with the US Department of Transportation, Federal Highway Administration.", Includes bibliographical references (p. 40), Mode of access: World Wide Web.
