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2020 CDOT MASH Compliance Guardrail Policy
2020-3. June 29, 2020. The purpose of this Design Bulletin is because the Standards and Specifications Unit is revising and updating the implementation policy ...
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Tips for Smooth Project Advertisement
2020-1. April 29, 2020. Projects not being validated in AASHTOWare Project Preconstruction prior to project advertisement. The three required AASHTOWare ...
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2019 CDOT Visual Impact Assessments (VIA) Guidelines
2019-4. November 19, 2019. The purpose of this Design Bulletin is to provide guidance regarding the new CDOT Visual Impact Assessment (VIA) guidelines, ...
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2019 CDOT Engineering Estimate Request
2019-3. May 8, 2019. (Revised on February 17, 2022 by DB-2022-2) The Engineering Estimates and Market Analysis (EEMA) Branch is implementing a new process to ...
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Superseded Design Bulletins
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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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Revisions to Standard Specifications 107.25 and 208 - Water Quality Control and Erosion Control
2019-1. March 28, 2019. The purpose of this Bulletin is to provide information and instruction regarding the revisions to Standard Specifications 107.25 and ...
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2018 CDOT Roadway Design Guide (RDG)
2018-7. October 25, 2018. The 2018 release of the CDOT Roadway Design Guide (RDG) is synchronized with the AASHTO 2011, "A Policy on Geometric Design of ...
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Modified Form 464 - Design Exception Variance Request
2018-6. October 3, 2018. This modified Form 464 reflects that designers are encouraged to support design exception variance requests with Data Driven Safety ...
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ADA Accessibility Reqs. PD 605.1 [Form 464 Ref. Removed]
2018-5. Form #464 references have been deleted from the Procedural Directive 605.1 since the form is no longer used for curb ramps
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Issuance Design Bulletin fo the New CDOT Roadway Design Guide Ch 12 - Accessible Pedestrian Design
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CDOT Roadway Design Guide 2005