CDOT Maintains
https://www.codot.gov/programs/colorado-transportation-matters/statewide-transportation-plans/data/maintaining-the-system
https://www.codot.gov/programs/planning/transportation-plans-and-studies/assets/images/cdot-maintains/view
https://www.codot.gov/programs/planning/transportation-plans-and-studies/assets/images/cdot-maintains/@@download/image/CDOT Maintains.png
CDOT Maintains
https://www.codot.gov/programs/colorado-transportation-matters/statewide-transportation-plans/data/maintaining-the-system