High-Risk Corridors
I-25, the numbered avenues, and the last mile from the N Line
Thornton is a long city strung along I-25, which forms its western spine and pulls traffic in from across the north metro before sending it home at highway speed. The numbered avenues do the east-west work, principally 120th Avenue and 104th Avenue through the commercial core, crossed by Washington Street, Colorado Boulevard and Huron Street on the north-south axis. Two of the busiest pickup points are single large properties under one owner: Denver Premium Outlets at 13801 Grant St., off I-25 exit 225 at 136th Avenue, and Larkridge further along the corridor, where the walkways and surface parking belong to the center rather than the tenants. The distinctive Thornton pattern, though, is transit. The RTD N Line's current northern terminus, Eastlake/124th at 12500 Claude Ct., sits inside the city, 13 miles and about 29 minutes from Union Station, and it generates a steady flow of short last-mile trips between the platform and a front door.