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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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New CDOT Roadway Design Guide Ch 12 - Accessible Pedestrian Design
2018-4. July 30, 2018. This is the new Chapter 12, "Accessible Pedestrian Design" for the CDOT Roadway Design Guide. It is derived from the Public ...
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New Form 463 “Go-Live” June 4th
2018-2. May 17, 2018. This Design Bulletin is the final notification for additional input to Form 463. It is a follow up to Design Bulletin 2018-1 issued on ...
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New Form 463 “Go-Live” June 4th
2018-1. May 2, 2018. The FHWA controlling criteria for design, changed from 13 to 10 in mid-2016. Outreach to the regions via the Project Delivery Advisory ...
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Noise Guide Changes
2017-01. April 10, 2017. This bulletin aligns Colorado noise standards with national standards.
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Noise Regulation Revisions
2014-5. April 04. 2014. The Federal Highway Administration (FHWA) has changed several key elements of how noise impacts and noise mitigation are assessed and ...
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Non-Compliant Contract Provisions
2010-3 . March 8, 2010. Provides information and instructions regarding non-compliant contract provisions that have been included on several federally funded ...
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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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Overlay Exemption from MS4 requirements
2007-1. June 6, 2007. Superseded by: 2007-5.
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Overlay Exemption from MS4 requirements
2007-5. December 7, 2007.
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