Catalog Search Results
Author
Pub. Date
[1986]
Description
Various reinforced earth retaining walls were constructed in Glenwood Canyon to accommodate for the possible large differential settlements of the foundation soils. The first time these walls were constructed with 10-foot wide and 20-foot high fascia panels. These panels admirably withstood severe differential settlements. However, they did not meet the specifications for the final alignment due to the horizontal rotations associated with the vertical...
Author
Pub. Date
2020.
Description
Deployment of 2+1 Road with Barrier in Colorado certainly has potential to improve safety where it replaces conventional 2-lane highways, primarily by preventing head on and sideswipe crashes. The Swedish design is most widely implemented and has a record of success, so Colorado drivers expect the "slow" lane to be the ending lane, and somewhat gentler tapers than Sweden employs.
Author
Pub. Date
2020.
Description
This report presents a case study on the evaluation of bridge decks using various non-destructive test methods. The primary interest lies in quantifying delaminated areas in deck concrete covered with asphalt overlays. Analytical and computational models are formulated to decompose the intensity of GPR scales into two categories: i) initiation and progression of corrosion and ii) delamination of deck concrete, which show good agreement...
Author
Pub. Date
2017.
Description
The Colorado-specific safety knowledge base, developed and effectively applied in the design process at CDOT, is not yet used to inform the planning process. This report transfers the use of these Colorado-specific, predictive and diagnostic tools to the transportation planning process. It develops a proposed methodology for the Explicit Consideration of Safety in the Transportation Planning Process by focusing on science-based and data-driven project...
Author
Pub. Date
2013.
Description
Colorado could pursue fees based on actual travel as an alternative to the fuel tax. Revenues from mileage-based user fees (MBUF) would not vary based on fleet fuel consumption and would instead return revenue in proportion to use of the roadway network. Too many operational and technological questions remain unanswered, and must be tested and evaluated before the state would be ready to commit to a statewide implementation of this strategy.
Author
Pub. Date
2017.
Description
The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, determined the peak discharge, annual exceedance probability (flood frequency), and peak stage of two floods that took place on Big Cottonwood Creek at U.S. Highway 50 near Coaldale, Colorado on August 23, 2016, and on Fountain Creek below U.S. Highway 24 in Colorado Springs, Colorado on August 29, 2016.
Author
Pub. Date
2018.
Description
This report presents the development of ultra-high performance concrete (UHPC) using locally available materials that reduce construction costs compared with commercial products. With the aim of achieving a specified compressive strength of 20 ksi, a UHPC mixture is formulated. The implications of various constituent types are examined with an emphasis on silica compounds (silica fume, silica powder, silica sand, finer silica sand, pyrogenic silica,...
Author
Pub. Date
2015.
Description
Full depth reclamation of asphalt pavements using asphalt emulsions is a process that recycles and rejuvenates the existing asphalt pavement surface, base, and sometimes, the subgrade, providing an improved underlying structure for the new asphalt pavement. This report provides guidance, standardized plans and specifications, construction inspection best practices materials testing procedures and frequencies, a performance evaluation process, and...
Pub. Date
2004.
Description
"This plan, the result of a partnership among the Departments of Transportation of Colorado, New Mexico, Oklahoma, and Texas, outlines a series of priorities and steps to improve the corridor and serves as a tool for securing funding for corridor development. Funding for this planning project was provided by the U.S. Department of Transportation with the Colorado Department of Transportation serving as project manager."
97) Destined for you
Author
Series
Formats
Description
In 1869, Gloriana Womack's family is much smaller since smallpox killed her mother and two of her siblings. She lives in a modest cottage in Duluth, Minnesota, with her father and young brother, and she has dedicated her life to holding her tiny, fractured family together--especially as her father is frequently gone on long fishing trips. Their livelihood may come from the waters of Lake Superior, but storms on the lake can be dangerous, even to those...
Author
Pub. Date
[2005]
Description
Currently, CDOT has no uniform statewide procedure to size detour drainage structures and permanent hydraulic structures using existing methodologies may result in failures. The main objective of the study is to develop a statewide detour drainage structure design procedure that also considers environmental impacts and mitigation measures.
100) Alexander's bridge
Author
Formats
Description
Construction engineer Bartley Alexander is a troubled, middle-aged man torn between Winifred, his American wife - a cold woman with clearly defined standards - and Hilda Burgoyne - an alluring mistress in London who has helped him recapture his youth and sense of freedom. Alexander's relationship with Hilda gnaws away at his sense of propriety and honor and eventually proves disastrous. (He is with Hilda when a messenger, unable to find him, fails...