CDOT gives a letter grade to overall roadway condition. It is a combination of the percent of highway pavement determined to have high or moderate Drivability Life and the level of service (LOS) delivered by CDOT’s maintenance program. The Department in 2013 changed its way of evaluating pavement condition. Grades for previous years are not directly comparable.

Bridges in good condition typically have a rating from 80 to 100 and generally meet all safety and geometry standards. Good structures typically only require preservation-focused maintenance. Bridges in fair condition have a sufficiency rating from 50 to 80 and are qualified as structurally deficient or functionally obsolete. They marginally satisfy safety and geometry standards and require preservation-focused maintenance or occasional corrective rehabilitation work. Any bridge with a sufficiency rating of less than 50 and a status of structurally deficient or functionally obsolete is considered to be in poor condition. Bridges rated poor have exceeded their viable service life and require replacement or major rehabilitation.

The tunnel maintenance program tracks CDOT progress in maintaining tunnels on the State Highway System. A letter grade is given every year on maintenance activities at the Eisenhower-Johnson and Hanging Lake tunnels on I-70. Maintenance on these aging tunnels includes tunnel washing and sweeping, ventilation maintenance, snow removal, emergency response and round-the-clock television surveillance.

DescriptionThis dataset contains Drivability Life data from the CDOT Pavement Management database, dynamically segmented against CDOT Routes.  Source data includes both primary and secondary direction, but only primary is included in this feature class.
Last Update2023Update FrequencyAnnuallyData OwnerDivision of Transportation DevelopmentData ContactGIS Support UnitCollection Method
ProjectionNAD83 / UTM zone 13NCoverage AreaStatewideTemporal
Disclaimer/LimitationsThere are no restrictions and legal prerequisites for using the data set. The State of Colorado assumes no liability relating to the completeness, correctness, or fitness for use of this data.