Construction Bulletins

Updated on May 16, 2024
New Colorado Discharge Permit System Stormwater Construction Permit (CDPS-SCP) Requirements

2024-2. March 16, 2024. The guidance provided in this Bulletin should be followed for all projects holding a Colorado Discharge Permit System—Stormwater Construction Permit (CDPS-SCP) also known as the COR400000. Projects currently under construction shall add the following Standard Special Provisions (SSPs) and revised M-Standards and Form 1176 into their projects with a Contract Modification Order (CMO). Reach out to your Construction Area Engineer for questions regarding this CMO.

2024 New 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 106.11. Changes to the specifications were made to comply with the supplemental guidance issued by the Office of Management and Budget in Washington, D.C. as contained in Memorandum M-24-02 released October 25, 2023, and based on the Notification of Final Guidance/Final Rule as published in the Code of Federal Regulations on August 23, 2023.

Class G Concrete

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.

Precast Concrete Elements

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.

Environmental Product Declarations (EPDs)

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.

Portland Limestone Cement

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.

Juneteenth State Holiday

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.

Stormwater Construction Permit Modifications

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.