Colorado State Highway 170

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State Highway 170

Map of Boulder County in north central Colorado with SH 170 highlighted in red
Route information
Maintained by CDOT
Length6.969 mi[1] (11.216 km)
Major junctions
West endEldorado Canyon State Park
East end US 36 in Superior
CountryUnited States
Highway system
  • Colorado State Highway System
SH 167 SH 172
State Highway 170 approaching Eldorado Springs

State Highway 170 (SH 170) is a state highway in Colorado that connects Eldorado Springs and Superior. SH 170's western terminus is at Eldorado Canyon State Park, and the eastern terminus is at U.S. Route 36 (US 36) in Superior.

Route description

The road begins at the edge of Eldorado Canyon State Park at El Dorado Springs as a dirt road. Speed limit in this area is at 10 mph. As the route leaves Downtown Eldorado Springs, it becomes a paved road and the speed limit increases to 25 mph. . SH 170 then heads eastward, meeting County Road 67 before passing through a rural grassy area. The route then meets SH 93, where it becomes Marshall Drive, just north of Marshall Lake. The road then finds its eastern terminus at US 36, the Denver-Boulder Turnpike, passing through the city of Superior.[2]

Major intersections

The entire route is in Boulder County.

Eldorado Springs0.0000.000Eldorado Canyon State ParkWestern terminus
2.7354.402 SH 93 – Boulder, Arvada
Superior6.96911.216 US 36 – Boulder, DenverEastern terminus; diverging diamond interchange
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "Segment list for SH 170". Retrieved 2011-01-20.[permanent dead link]
  2. ^ Microsoft; Nokia (2011-01-24). "SH 170" (Map). Bing Maps. Microsoft. Retrieved 2011-01-24.

External links

Media related to Colorado State Highway 170 at Wikimedia Commons