Rich in mining history, the Mountain Mineral Belt design segment rises from the foothills. Dotted with historic towns including Idaho Springs and Georgetown, the Mountain Mineral Belt offers scenic views, lush forests, rocky hillsides, waterways, and access to local and regional destinations and recreational opportunities. The Mountain Mineral Belt design segment contains five Areas of Special Attention (ASA) including Floyd Hill, Twin Tunnels; Idaho Springs; DLD and Empire Junction; and Georgetown and Silver Plume.
The 1983 session of the Colorado General Assembly passed House Bill 1102 authorizing the Colorado Water Conservation Board (CWCB) to conduct a geotechnical study of dam sites in the White River Basin. The objective of the White River Geotechnical Study was to carry out surficial and sub surface geotechnical investigations of the designated dam sites and to locate and evaluate potential sources of construction material. The level of topographic data on the reservoir areas was to be upgraded.
"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."
Truncated base mechanically stabilized earth walls are the MSE walls with narrow base excavation length and steep excavation slope designed to save construction cost while pushing the technological envelope of geosynthetic reinforcement development. A wall with truncated geometry of a narrow base length and steep excavation slope can significantly increase its base bearing pressure.
The Tunnel Visioning Design Workshop is the result of state and local interest in the I-70 Mountain Corridor and a desire for improvements to the existing weekend congestion. A focal point of the congestion and delay has long been the Twin Tunnel area. The Twin Tunnels encourage drivers to slow down as they approach the seemingly narrow tunnels. These slowing vehicles create a queue stretching back, sometimes, for 4 and 5 miles. It was decided to bring together technical experts in the areas of tunneling, roadway design, geotechnical engineering, traffic operations, and transit design for 1 week. The process, participants, and the results are detailed in this report.
This Environmental Assessment (EA) has been prepared for the Federal Boulevard Improvements Project. The stretch of Federal Boulevard in the Project Area is lined by commercial development with residential development behind the businesses. Federal Boulevard serves as a high travel-demand traffic corridor. This is a local-agency project sponsored by the City and County of Denver (CCD) in conjunction with CDOT and the Federal Highway Administration (FHWA) serving as joint lead agencies.
The Colorado Department of Transportation (CDOT) initiated this US 24 PEL Study to examine existing transportation conditions and anticipated problem areas along the US 24 corridor in El Paso County between Powers Boulevard and the Town of Ramah. The study identified and screened a reasonable range of potential transportation improvements to develop an implementation plan for projects to meet the operational, safety, and capacity needs along the corridor. The study was conducted following Federal Highway Administration (FHWA) PEL guidance regarding the integration of transportation planning and the National Environmental Policy Act (NEPA) process, which encourages the use of planning studies to provide information for incorporation into future NEPA documents.
This document is provided by the Colorado Division of Water Resources (DWR) Dam Safety Branch (DSB) as a technical guide for the engineering community involved with the design and construction of dams under the Colorado Revised Statutes (CRS) and the Rules and Regulations for Dam Safety and Dam Construction (Rules). This Project Review Guide is not intended to instruct engineers on how to design and construct dams. Engineers working on dams in Colorado are expected to be familiar with the current state of the practice in dam design. The guide was developed to aid dam designers in providing all the required information at all stages of the project, while avoiding the unnecessary effort and expense of preparing and submitting voluminous, sometimes inconsequential output.