Dossier
County Line exit
Coverage of County Line exit in the Nexus archive.
- Driving You Crazy: Why does I-25 go from 4 lanes to 3 lanes at the County Line exit then back to 4 lanes?
The article explains why I-25 northbound reduces to 3 lanes at the County Line exit due to obstacles like elevation differences, drainage areas, underground utilities, and bridge constraints. CDOT engineers state modifying the section would require complex redesigns and pose safety and traffic issues.