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Highway grades in sections across Colorado.

Inventory of Managed Access and Toll Lanes operated by Colorado Department of Transportation

The mile points for every interstate highway in Colorado, from the Colorado Department of Transporation

Mileposts (or mile markers) along highways and their locations collection during GPS mapping efforts in the early 2000s from the Colorado Department of…

The Federal Highway Administration (FHWA) has been receiving Highway inventory, usage, condition and performance data from State Departments of Transportation…

Highway segments and the various quality assurance data along with the overall grade, from the 2014 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2015 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2016 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2017 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2018 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2023 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2024 review of the Colorado Department of Transportation (CDOT).

Highway segments and the various quality assurance data along with the overall grade, from the 2025 review of the Colorado Department of Transportation (CDOT).

Route locations, segment lengths and route identifiers, from the Colorado Department of Transportation (CDOT).

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2014

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2015

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2016

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2017

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2018

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2019.

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2022.

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2023.

Traffic counts on highways and various calculations, from Colorado Department of Transportation (CDOT), for 2024.

As of January 1, 2023, a Highway Use Fee is imposed on certain carriers for the privilege of operating, or causing to be operated, certain heavy, multi-unit…