U.S. 36 (28th Street) widens from two to four lanes south into the city of Boulder. Located at an elevation of 5,345 feet, Boulder was home to 108,250 as of the 2020 Census. The city is well known as the home of the University of Colorado. Incorporated in 1871, Boulder was linked to nearby Denver by rail in 1873. Gradually increasing in size throughout the 20th century, Boulder had 25.37 square miles as of 2005, and with continued growth, 27.37 square miles in 2020.
| U.S. 36 separates from U.S. 34 Business (Elkhorn Avenue) for St. Vrain Avenue east at U.S. 34 (Wonderview Avenue west / Big Thompson Avenue east) in the town of Estes Park. U.S. 34 continues toward Big Thompson Canyon. 08/27/04 |
| U.S. 36 (St. Vrain Avenue) crosses the Big Thompson River between the intersection with U.S. 34/34 Business and this confirming marker. 08/27/04 |
| SH 7 (S St. Vrain Avenue) branches southeast from U.S. 36 (N St. Vrain Avenue) just beyond Stanley Avenue. SH 7 provides an alternate route to U.S. 36 between Estes Park and Lyons by way of Meeker Park, Allenspark and Ferncliff. 08/27/04 |
| Segment A of SH 7 (S. St Vrain Avenue) constitutes a 33.38 mile long loop across Roosevelt National Forest between U.S. 36 at Estes Park and U.S. 36 at Lyons. 08/27/04 |
| U.S. 36 (N. St. Vrain Avenue) runs along Lake Estates east from 4th Street in Estes Park. 08/27/04 |
| A causeway takes U.S. 36 east across Lake Estates between Community Drive and Fish Creek Road (CR 63). 08/27/04 |
| Continuing southeast into scenic Roosevelt National Forest, U.S. 36 (N. Vrain Avenue) passes through a valley by Panorama Peak. 08/27/04 |
| Paralleling the Little Thompson River, U.S. 36 navigates through a series of S-curves between Elk Ridge and Kenny Mountain. 08/27/04 |
| CR 80 meanders southwest along the North St. Vrain River to Button Rock Reservoir and Coffintop Mountain. 08/27/04 |
| The N. St. Vrain Creek flows along the south side of U.S. 36 east from CR 80 into Lyons. 08/27/04 |
| Apple Valley Road spans the N. St. Vrain Creek across a tied arch bridge adjacent to U.S. 36 (N St. Vrain Drive). 08/27/04 |
| U.S. 36 (W Main Street) meets SH 7 again at 5th Avenue and Broadway in the town of Lyons. An unmarked concurrency leads SH 7 east alongside U.S. 36 to Boulder. 08/27/04 |
| U.S. 36 partitions into a couplet along Broadway east and Main Street west through the Lyons business district. 08/27/04 |
| U.S. 36 (Ute Highway) heads 1.5 miles southeast from SH 7 (5th Avenue) to SH 66 at N Foothills Highway. SH 66 (Route 066B) runs 22.82 miles east to connect with U.S. 287 north of Longmont, I-25 near Mead and U.S. 85 in Platteville. 08/27/04 |
| Straddling the east side of Red Hill, U.S. 36/SH 7 (Foothills Highway) head south to Altona, intersecting St. Vrain Road east beyond this shield assembly. 08/27/04 |
| Segment B of SH 7 along Broadway in the city of Boulder was decommissioned. Broadway lead SH 7 south 3.46 miles to Downtown Boulder, SH 119 (Canyon Boulevard) and SH 93. 08/27/04 |
| U.S. 36 shifts east from Broadway (former SH 7) onto 28th Street to bypass Boulder. Segment B of SH 7 returned to U.S. 36 alongside a 1.13 mile overlap with SH 119 (Canyon Road) east from Downtown. 08/27/04 |
| Confirming marker for U.S. 36 along 28th Street east beyond the separation with Broadway (old SH 7). 08/27/04 |
| Continuing southeast along 28th Street past Lee Hill Drive at mile marker 33. 08/27/04 |
| U.S. 36 (28th Street) runs along the Boulder city line southeast from Broadway to Jay Road, where the arterial turns south toward the University of Colorado Boulder. 08/27/04 |
| SH 7 branches east from U.S. 36 (28th Street) along Arapahoe Avenue to U.S. 287 at Lafayette. U.S. 36 advances south by the University of Colorado Main Campus onto the Denver-Boulder Turnpike at Baseline Road. 04/23/17 |
| A parclo interchange joins U.S. 36 (Denver-Boulder Turnpike) with Baseline Road at 27th Way. Baseline Road west 0.36 miles to SH 93 (Broadway) is U.S. 36 Spur (Route 036E). 19.67 miles in length, SH 93 runs south from SH 119 in Boulder to the western suburbs of Denver, linking with U.S. 6 and SH 58 at its southern end in Golden. 04/23/17 |
Page Updated 01-04-2022.