Construction Bulletins
Updated on March 9, 2023
2023-1. March 9, 2023. Class G concrete shall no longer be used on currently awarded CDOT projects and on future projects. This bulletin describes the procedures involved in replacing Class G Concrete.
2022-5. December 20, 2022. This construction bulletin officially cancels all previously approved variances to the CDOT Standards and Specifications related to Precast Concrete Elements. It declares that previous letters or statements granting exceptions or changes to current CDOT Standards, plans, and Specifications for Precast Concrete elements are null and void and shall not be utilized for products supplied to CDOT projects.
2022-4. October 27, 2022. Add Section 208.10 - Permanent Water Quality (PWQ) to the CDOT Construction Manual via this Construction Bulletin. The procedure for final acceptance and certification of a Permanent Water Quality feature is outlined in this bulletin.
2022-3. August 5, 2022. On Tuesday, July 6, 2021, Gov. Jared Polis signed HB 21-1303 Global Warming Potential For Public Project Materials, requiring Contractors to submit Environmental Product Declarations (EPDs) for all eligible materials to include asphalt and asphalt mixtures, cement and concrete mixtures, and steel.
2022-2. June 28, 2022. Every cement supplier will be ceasing production of ASTM C150 Type I/II cements this year and replacing them with ASTM C595 Type IL cements. This is part of the cement industries push for carbon neutrality.
2022-1. May 17, 2022. Subsection 108.08 states (in part), The Contractor shall not carry on construction operations on Saturdays, Sundays, or holidays unless previously arranged and approved. Considering that the month of June is part of peak construction season, it is advised that Project Engineers treat June 20, 2022, as a working day.
2021-5. June 29, 2021. Rev. May 17, 2022. The reasons for this Construction Bulletin are that recently issued specifications have impacted Civil Rights compliance processes on construction projects. The Construction Manual has been updated to align with the issued specifications.
2021-4. March 15, 2021. The purpose of this bulletin is to inform CDOT Project Engineers and Contractors about the change in CDOT’s MS4 software used for the monthly inspections by the CDOT Region Water Pollution Control Managers (RWPCMs) per the 208 specifications. This change pertains to all projects that have a Colorado Discharge Permit System (CDPS) Stormwater Construction Permit (SCP).
2021-3. March 10, 2021. This bulletin provides notification of revised Form 1432.
2021-2. February 24, 2021. The purpose of this Bulletin is to notify all personnel working on projects that have a Colorado Discharge Permit System General Permit for Stormwater Discharges Associated with Construction Activities (Stormwater Construction Permit [SCP]) that a modification to this permit was issued on December 31, 2020 and became effective on February 1, 2021.
2021-1. January 22, 2021. This bulletin revised Section 120 of the Construction Manual to address Electronic signatures.
2020-2 . August 14, 2020. The bulletin provides guidelines regarding the use of electronic (digital) and wet signatures for Buy America documentation.
2020-1. March 27, 2020. This Construction Bulletin provides guidance and resources to implement using Adobe Sign for signing change orders. This temporary guidance was developed to address COVID-19 remote working requirements to minimize its impact on employees and project deadlines.
2019-2. August 8, 2019. The purpose of this Bulletin is to provide information regarding the use of the Change Order Price Analysis Tool for price justification for added items for change orders.
2019-1. March 28, 2019. The purpose of this Bulletin is to notify all project personnel working on projects that have a Colorado Discharge Permit System General Permit for Stormwater Discharges Associated with Construction Activities (SCP), that a new SCP becomes effective on April 1, 2019. The goal is to eliminate or minimize when a change order is required on these projects.
2016-2. Revised on October 20, 2016. The memo provides a summary of major changes for the Revised Water Quality Control and Erosion Control Specifications, the Revised Environmental Pre-construction Agenda and Certification of Understanding, CDOT forms 1176 and 1177, the 2 SWMP sheets, and the Revised Stormwater Notebook Table of Contents and Notebook Tabs.
2016-1. Revised on July 26, 2016. Project Engineers must submit a Final Notebook and a separate Final Materials Notebook to the Finals Administrator. Plus, ProjectWise is now an acceptable location for housing electronic documentation for final pay quantities. This bulletin describes and authorizes these changes.
2015-6. August 17, 2015. This bulletin supersedes Design Bulletin 2014-12: Permanent Water Quality Mitigation Pool Combination Projects and Construction Bulletin 2014-6: Permanent Water Quality Mitigation Pool. The purpose of this bulletin is to provide direction on tracking Permanent Water Quality (PWQ) project money. A project follows this procedure anytime PWQ Mitigation Pool funds are used (including local agency projects).
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