2025 Construction Specifications

The 2025 Standard Specification book is mandatory for use on projects advertised on or after July 1, 2025. The State of Colorado works to provide equitable access to all Coloradans. If you need accommodations for this document, please use the Accessibility Request form or email the CDOT ADA Title II Coordinator at [email protected]. You can also leave a detailed voicemail message at 303-512-4220. For more information, visit our CDOT accessibility webpage.

Standard Special Provisions
The latest revisions to formally issued standard special provisions that modify the Colorado DOT's 2025 Standard Specifications for Road and Bridge Construction.

Project Special Provision Worksheets
These worksheets are used to create commonly used project special provisions that modify Colorado DOT's 2025 Standard Specifications for Road and Bridge Construction.

Sample Construction Project Special Provisions
Access to sample project special provisions that can be adapted to modify Colorado DOT's 2025 Standard Specifications for Road and Bridge Construction for a specific project.

Recently Issued Special Provisions
Revised on June 11, 2025.

Specification Changes Under Consideration

Connected Work Zone (CWZ) and Smart Work Zone (SWZ) Pilot Project Special Provisions

CDOT Library

Intelligent Transportation Systems (ITS) Specifications

Innovative Contract Provisions

Additional Resources

Style Guide for Writing Specifications
Revised on July 7, 2025. The intention of this guide is to help people who create or edit specifications for the Department. Following the recommendations and guidelines will result in specifications that are clear, concise, correct, complete, and consistent. This Style Guide is a standardization device designed to achieve uniform word and type treatment, and aiming for economy of word use.
CDOT Roadway Design Guide; Chapter 17 - Construction Specifications
This chapter defines Standard Specifications and Special Provisions. It provides the format for writing Special Provisions, and describes the approval process for both Standard and Project Special Provisions.
Stormwater Management Plan - SWMP
Link to the CDOT Landscape Architecture Section support for CDOT transportation projects requiring Stormwater Management Plans (SWMPs).
Sample Environmental & Landscape Architecture Project Special Provisions
Landscape Architecture's Construction Specifications, Details & Tools
Traffic Special Provisions
Sample Bridge Project Special Provisions
Project Safety Management Plan (Example)
This is only an example of a project safety management plan. Activities in the actual project safety management plan will likely be different from the ones provided in this example. The real project safety management plan shall address specific construction activities for that project. Please see "Section 107.06 - Safety, Health, and Sanitation Provisions" in the 2022 Specifications book for more information.
Intelligent Transportation Systems (ITS) Specifications
Smart Work Zone (SWZ) Pilot Project Special Provisions
2019, 2021 and 2022 Construction Specifications Books
Revised Standard Special Provisions Index 9-10-2025