Map of north central Colorado with SH 128 highlighted in red
|Maintained by CDOT|
|Length||10.0 mi [a] (16.1 km)|
|Counties||Boulder, Broomfield, Adams|
State Highway 128 (SH 128) is a 10 mi (16.1 km) [a] long state highway in the Denver, Colorado metro area. SH 128's western terminus is at SH 93 south of Boulder, and the eastern terminus is at Interstate 25 (I-25) in Westminster.
The route begins in the west at a junction with SH 93 roughly thirteen miles south of Boulder. From there, the road proceeds eastward into the northern portions of the Denver metropolitan area. The road passes through portions of the cities of Superior, Broomfield, Northglenn, and Westminster and crosses SH 121 before being split by a 3.8 mi (6.1 km) section of concurrency with U.S. Route 287 (US 287) and again resuming its course towards its eastern terminus at exit 223 of I-25 in the city limits of Westminster.
As of 2017 [update] there is a brief gap of much less than a mile between the junction of SH 128 and SH 121 and the junction of SH 121 and US 287 that is not even nominally part of SH 128. This gap is due to be closed in 2018 by a mile-long connector that began construction in 2009; there was a five-year hiatus from 2010 to 2015 during negotiations with BNSF. When construction is complete, the total end-to-end length, including the section that is nominally concurrent with US 287, will be 14 mi (22.5 km).
The route was established in the early 1920s, when it began at Federal Boulevard and ended at SH 185 (now deleted). A section from US 85 to US 6 was added by 1939 and deleted by 1949. The west terminus was extended from US 36 to Indiana Street in 1965 and to its current terminus at SH 93 two years later.
|City and County of Broomfield||7.973||12.831|
|8.970||14.436||Western End of U.S. 287 overlap|
|12.168||19.582||Eastern end of U.S. 287 overlap|
|Adams||Thornton||14.113||22.713||Eastern terminus; exit 223 on I-25|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
^ a: The 3.8 mi (6.1 km) long section of concurrency with US 287 is not maintained with state funds and therefore not considered to be part of SH 128 by the Colorado Department of Transportation.
U.S. Route 287 (US 287) is a north–south United States highway that is 1,791 miles (2,882 km) long, and serves as the major truck route between Fort Worth and Amarillo, Texas, and between Fort Collins, Colorado, and Laramie, Wyoming. The highway is broken into two segments by Yellowstone National Park, where an unnumbered park road serves as a connector.
U.S. Route 36 (US 36) is an east–west United States highway that travels approximately 1,414 miles (2,276 km) from Rocky Mountain National Park, Colorado to Uhrichsville, Ohio. The highway's western terminus is at Deer Ridge Junction, an intersection in Rocky Mountain National Park, Colorado, where it meets US 34. Its eastern terminus is at US 250 in Uhrichsville, Ohio.
State Highway 14 in the U.S. state of Colorado is an east–west state highway approximately 237 miles (381 km) long. One of the longest state highways in Colorado, it traverses four counties along the northern edge of the state, spanning a geography from the continental divide in the Rocky Mountains to the Great Plains, and including North Park, the Poudre Canyon, and the Pawnee National Grassland. It provides the most direct route from Fort Collins westward via Cameron Pass to Walden and Steamboat Springs, and eastward across the plains to Sterling.
State Highway 7 is an 81.64 miles (131.39 km) long state highway in the U.S. state of Colorado. 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 and Interstate 76.
The Northwest Parkway is a 9-mile (14 km) road running from the intersection of I-25 and E-470 to US 36. Both termini are in Broomfield, Colorado, northwest of Denver. In combination with E-470 and SH 470, the Northwest Parkway forms a partial beltway of approximately 83 miles (134 km) around the Denver-Aurora Metropolitan Area. Some 18 miles (29 km) lie between the west end of the Northwest Parkway and the northwest end of SH 470, the opposite end of the beltway.
State Highway 470 is the southwestern portion of the Denver Metro area's beltway. Originally planned as Interstate 470 in the 1960s, the beltway project was attacked on environmental impact grounds and the interstate beltway was never built. The portion of "Interstate 470" that was built as a state highway is the present-day SH 470, which is a freeway for its entire length. The route has previously been called the Centennial Freeway.
State Highway 121 (SH 121) is a 30.425 mile (48.96 km) long state highway in the U.S. state of Colorado. SH 121's southern terminus is at Waterton Road near Littleton, and the northern terminus is at U.S. Route 287 (US 287) in Broomfield.
State Highway 109 is a 65.327 mi (105.134 km) long state highway in southeastern Colorado. SH 109's southern terminus is at U.S. Route 160 north of Kim, and the northern terminus a continuation north as Grand Avenue in Cheraw.
State Highway 17 (SH 17) is an 88.5 mi (142.4 km) long state highway in southern Colorado. SH 17's southern terminus is a continuation as New Mexico State Road 17 (NM 17) at the New Mexico state line, and the northern terminus is at U.S. Route 285 (US 285) south of Villa Grove.
State Highway 157 is a 4.530-mile-long (7.3 km) state highway in Boulder, Colorado. SH 157 is also known as Foothills Parkway in Boulder's city street naming system. SH 157's southern terminus is at U.S. Route 36 (US 36) in Boulder, and the northern terminus is at SH 119 in Boulder.
State Highway 114 (SH 114) is a 61.7 mi (99.3 km) long state highway in southern central Colorado. SH 114's western terminus is at U.S. Route 50 (US 50) east of Gunnison, and the eastern terminus is at US 285 in Saguache.
State Highway 402 (SH 402) is a 4.2 mi (6.8 km) long state highway in northern central Colorado. SH 402's western terminus is at a junction with U.S. Route 287 (US 287) in the city limits of Loveland, and the eastern terminus is at Interstate 25 (I-25) and US 87 east of Loveland.
State Highway 59 (SH 59) is a 173.3-mile-long (278.9 km) state highway in eastern Colorado. SH 59's southern terminus is at U.S. Route 40 and US 287 in Kit Carson, and the northern terminus is at US 138 in Sedgwick.
State Highway 63 is a 56.4 mi (90.8 km) long state highway in northeastern Colorado. SH 63's southern terminus is at U.S. Route 36 in Anton, and the northern terminus is at US 6 in Atwood.
State Highway 392 (SH 392) is a 45.33 mi (73.0 km) long state highway in northern Colorado. SH 392's western terminus is at a junction with U.S. Route 287 (US 287) south of Fort Collins and proceeds eastward. It intersects Interstate 25 (I-25) at Exit 262 and continues east through the towns of Windsor and Lucerne. The highway continues northeast and serves several small towns. The highway nominally ends north of Briggsdale at SH 14 where it becomes Weld County Road 77 (CR 77).
U.S. Highway 36 is a major east–west route in the U.S. state of Colorado, extending from Rocky Mountain National Park to the Kansas state line.
State Highway 79 (SH 79) is a 23.8 mi (38.3 km) long state highway in Adams and Weld counties in Colorado. The highway is also called "Kiowa–Bennett Road" and "Converse Road". It traverses through remote, open plain. The highway does not pass through any towns. It does service some subdivisions in the area. SH 79's southern terminus is at Interstate 70 (I-70), U.S. Route 36 (US 36), US 40 and US 287 south of Bennett, and the northern terminus is at SH 79 in Prospect Valley.
State Highway 52 is a 111 mi (178.6 km) long state highway in northeastern Colorado. The western terminus is at SH 119 near Niwot, and the eastern terminus is at SH 14 in Raymer.
State Highway 119 is a 63.7-mile-long (102.5 km) state highway in north central Colorado. It extends in a southwest to northeast direction, from a junction with U.S. Route 6 in Clear Creek Canyon between Golden and Idaho Springs to a junction with Interstate 25 (I-25) east of Longmont. The southwest portion of the road is a scenic mountain drive providing dramatic vistas of the Front Range, while the northeast portion is a busy interurban thoroughfare. The city of Boulder separates these two vastly different sections of SH 119.
U.S. Highway 287 is the portion of a north-south highway in Colorado that travels from the Oklahoma state line just south of Campo to the Wyoming state line north of Fort Collins.