# Colorado State Highway 7

State Highway 7 (SH 7) is an 81.64-mile (131.39 km) state highway in Colorado, United States. It is located in the north-central portion of the state, traversing the mountains on the east of the continental divide south of Estes Park as well as portions of the Colorado Piedmont north of Denver. The northwestern segment of the highway is part of the Peak to Peak Scenic Byway and furnishes an access route to Estes Park, Colorado and Rocky Mountain National Park. In its southeast portion it skirts the northern end of the Denver Metropolitan Area, providing an access route connecting Boulder, Lafayette and Brighton with Interstate 25 (I-25) and Interstate 76 (I-76).
The western terminus is at the junction of U.S. Route 36 at North St. Vrain and South St. Vrain avenues in Estes Park. The eastern terminus is at I-76 exit 25 in Brighton. The portion between Lyons and Boulder, where it is concurrent with US 36, is unsigned. The highway is two lanes along the entire route except for portions in the cities and towns.

## Route description

From Estes Park, SH 7 climbs into the mountains of southwest Larimer County and skirts the east side of Rocky Mountain National Park, providing the closest vehicle approach to the popular trailhead to the summit of Longs Peak. Near the community of Raymond it intersects State Highway 72, which takes the Peak to Peak Scenic Byway designation with it to the south, while SH 7 turns to the east and follows South St. Vrain Creek downstream onto the piedmont at Lyons, where it intersects US 36. South of Lyons it is concurrent with US 36 along the base of the foothills to Boulder. (This section is signed only as US 36.) It is also concurrent with State Highway 119 on 28th Street within Boulder. It runs straight east from Boulder as the extension of Arapahoe Avenue to U.S. Route 287 (US 287) north of Lafayette, jogging one mile (1.6 km) to the south while concurrent with US 287, then going due east again, as Baseline Road, to I-25. East of I-25 it jogs one mile (1.6 km) south, then due east as 160th Avenue (part of the Greater Denver street numbering system) through Brighton to I-76 in the eastern part of Brighton.

## History

The route was established in the 1920s. It began at Estes Park and traveled south to Lyons, then south to Boulder. It then continued to its terminus at U.S. Route 87 (now also I-25) east of Lafayette. The route was paved from Boulder to Lafayette in 1932 and from Estes Park to Lyons in 1936. In 1939, the route was extended southeast to Brighton, where it met U.S. Route 6; this extension was paved by 1946. In 2006, the section on Broadway between US 36 and Canyon Boulevard in Boulder was turned back to the City of Boulder, and SH 7 was rerouted to be concurrent (unsigned) with US 36 on 28th Street through Boulder.

## Major intersections

| County | Location | mi | km | Destinations | Notes |
| Larimer | Estes Park | 0.00 | 0.00 | US 36 east (North St. Varin Avenue) – Lyons, Boulder US 36 west (North St. Varin Avenue) – Rocky Mountain National Park | Western terminus; T intersection |
| Boulder | Allenspark | 14.91 | 24.00 | SH 7 Bus. east | Western end of SH 7 Bus. |
| Boulder | ​ | 16.08 | 25.88 | SH 7 Bus. west | Eastern end of SH 7 Bus. |
| Boulder | ​ | 19.24 | 30.96 | SH 72 south (Peak to Peak Highway) – Ward, Nederland | Northern end of SH 72 |
| Boulder | Lyons | 32.99 | 53.09 | US 36 west (West Main Street) – Estes Park | Western end of (unsigned) US 36 concurrency; (SH 7 is unsigned along US 36 concurrency) |
| Boulder | ​ | 34.49 | 55.51 | SH 66 east (North Foothills Highway) – Longmont, Platteville | Western end of SH 66 |
| Boulder | Boulder | 50.89 | 81.90 | SH 119 north (Diagonal Highway) – SH 157, Longmont | Western end of SH 119 concurrency |
| Boulder | Boulder | 52.29 | 84.15 | SH 119 south (Canyon Boulevard) – Nederland | Eastern end of SH 119 concurrency |
| Boulder | Boulder | 52.48 | 84.46 | US 36 east (28th Street) – SH 157, Broomfield, Denver | Eastern end of US 36 concurrency; (SH 7 is unsigned along US 36 concurrency) |
| Boulder | Boulder | 53.45 | 86.02 | SH 157 north (Foothills Parkway) – SH 1119 SH 157 south (Foothills Parkway) – US 36 | |
| Boulder | Lafayette | 59.29 | 95.42 | SH 42 south (North 9th Street) – Louisville | Northern end of SH 42 |
| Boulder | Lafayette | 60.68 | 97.65 | US 287 north – Longmont, Loveland | Eastern end of US 287 concurrency |
| Boulder | Lafayette | 61.87 | 99.57 | US 287 south – Broomfield | Western end of US 287 concurrency |
| City and County of Broomfield | City and County of Broomfield | 68.38 | 110.05 | I-25 north (Dwight D. Eisenhower Highway) / US 87 north – Fort Collins, Cheyenne (Wyoming) I-25 south (Dwight D. Eisenhower Highway) / US 87 south – Denver | I-25 exit 229; diamond interchange |
| Adams | Brighton | 76.98 | 123.89 | US 85 north (CanAm Highway) – Fort Lupton, Greeley US 85 south (CanAm Highway) – Denver, Colorado Springs | |
| Adams | Brighton | 77.29 | 124.39 | North 4th Avenue (north) South 4th Avenue (south) – I-76/US 6, Denver | South 4th Avenue formerly SH 2 |
| Adams | Brighton | 81.64 | 131.39 | Frontage Road to / I-76 / US 6 – Denver, Sterling | Eastern terminus |
| Adams | Brighton | 81.64 | 131.39 | East Bridge Street/East 160th Avenue | Continuation east beyond eastern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access ||||||

## Business route

Colorado State Highway 7 Business (SH 7 Bus.) is a 1.592-mile (2.562 km) east–west state highway business route in Boulder County, Colorado, United States. SH 7 Bus.'s western terminus is at SH 7 in Allenspark, and the eastern terminus is at SH 7 east of Allenspark.
The entire route is in Boulder County.
| Location | mi | km | Destinations | Notes |
| Allenspark | 0.000 | 0.000 | SH 7 | Western terminus |
| ​ | 1.592 | 2.562 | SH 7 | Eastern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi |||||