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Roadway Design Guide Updates
2025-1 March 26, 2025. List of items updated in the Colorado Department of Transportation (CDOT) Roadway Design Guide.
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New Buy America (BA) and Build America, Buy America (BABA) Requirements
2024-1. February 21, 2024. The purpose of this Bulletin is to provide information and instruction regarding revisions to Standard Specifications 101.02 and ...
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Advertisement of Accessible Plans and Specifications
2024-4. September 20, 2024. Per Procedural Directive 31.1, titled "Website Development and Web Accessibility", content on an external-facing Colorado ...
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2022 CDOT Engineering Estimate Request
2022-2. February 17, 2022. The Engineering Estimates and Market Analysis (EEMA) Branch is implementing a new process to request Engineering Estimates for ...
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Utility Conflict Management (UCM) - Utility Conflict List
2022-1. February 8, 2022. The purpose of this Design Bulletin is to provide guidance for the use of the Utility Conflict Matrix (UCM) for the identification of ...
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Operations Evaluation (Formerly TSM&O)
2021-2. December 1, 2021. On January 1, 2016 all projects with a Design Scoping Review on or after February 1, 2016 required a Transportation Systems ...
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Systems Engineering Analysis (SEA) Process
2021-3. December 1, 2021. As of September 1, 2021, projects will follow the revamped Systems Engineering Analysis (SEA) process. The SEA will no longer be a ...
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Assigning Pavement Smoothness Categories
2024-3. July 1, 2024. This design bulletin provides guidance to designers for assigning pavement smoothness categories for hot mix asphalt and Portland cement ...
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New Colorado Discharge Permit System Stormwater Construction Permit (CDPS-SCP) Requirements
2024-2. May 16, 2024. The purpose of this Bulletin is to provide information and instruction regarding revisions changes to the Water Quality Specifications ...
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Tips for Applying the Traffic Signal One-Line Diagrams
2023-1. June 27, 2023. Several electrical utility companies and CDOT Regions are now requiring that traffic signal projects include electrical one-line ...
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