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📘Standard Specifications

2025 Standard Specifications for Road & Bridge Construction

WebColorado Department of Transportation (CDOT)2025 Standard Specifications

CDOT's specification book covering materials and construction methods for state highway projects, organized in Divisions 100-700.

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Full Text — 95 Sections (2023 Edition)

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Previous Editions

Projects remain governed by the edition in effect when they were advertised — these earlier editions stay available for active and legacy work.

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Previous CDOT specification books (2023 and earlier)

2023 book plus request access to 2022, 2021, and 2019 editions

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