High-Crash Corridors
The CO-119 Diagonal Highway
The Colorado Department of Transportation documents the CO-119 Diagonal Highway between Boulder and Longmont as a high crash corridor that produces more severe crashes per mile than any other road in unincorporated Boulder County, which is why CDOT launched the CO 119 Safety, Mobility and Bikeway Project. The US-36 Denver-Boulder Turnpike, which enters the city as 28th Street, and the narrow curves of Boulder Canyon on CO-119 west of town carry their own catastrophic-injury risk. Severe collisions on these routes are exactly the kind that cause spinal cord trauma.