 State Highway 42 | ||||
|---|---|---|---|---|
 Map of Boulder County in north central Colorado with SH 42 highlighted in red | ||||
| Route information | ||||
| Maintained by CDOT | ||||
| Length | 4.876 mi [1] (7.847 km) | |||
| Major junctions | ||||
| North end |  SH 7 in Lafayette | |||
| Louisville | ||||
| East end |  US 287 in Lafayette | |||
| Location | ||||
| Country | United States | |||
| State | Colorado | |||
| Counties | Boulder | |||
| Highway system | ||||
| ||||
| ||||
State Highway 42 (SH 42) is a state highway in Boulder County, Colorado, United States. It runs south from SH 7 to Louisville and then east to US 287.
SH 42 begins in northwestern Lafayette at a junction with SH 7 (Arapahoe Road) and heads south on 95th Street. 1 mile (1.6 km) later, after crossing Baseline Road, the roadway S-curves to the east to line up with 96th Street, though it keeps the 95th Street name until the Louisville city limits. After bypassing downtown Louisville to the east, SH 42 turns east onto a road that becomes Empire Road upon leaving Louisville. It ends at US 287 south of downtown Lafayette. [2]
State Highway 168 was designated in 1932-1934 along a route similar to the present SH 42, but using a number of different roadways. It began on SH 7 in the same place and headed south on 95th Street, but the S-curve was not in place and it jogged east on Baseline Road to reach 96th Street. SH 168 then jogged west on South Boulder Road across the railroad to Louisville's Main Street, and turned east on Pine Street, crossing SH 42 onto Empire Road. This street curves south to meet SH 42 at the current city limits of Louisville, after which SH 168 followed SH 42 to end at SH 1 (now US 287). [3] In 1953 the state highway system was greatly reduced [4] and SH 168 disappeared. The loop through Louisville returned to the system in 1960-1961 with a new number: State Highway 42. Two new segments of road were built in about 1970, giving SH 42 its current shape (but initially a sweeping curve carried traffic around the corner east of downtown Louisville). [5] [6] [7]
The entire route is in Boulder County.
| Location | mi | km | Destinations | Notes | |
|---|---|---|---|---|---|
| Lafayette | 0.000 | 0.000 | SH 7 | Northern terminus | |
| Louisville | 2.624 | 4.223 | Pine Street / Empire Road – Louisville | ||
| 2.951 | 4.749 | 96th Street | SH 42 changes direction | ||
| 3.795 | 6.107 | 104th Street / Empire Road | |||
| Lafayette | 4.876 | 7.847 | US 287 | Eastern terminus | |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
U.S. Route 287 (US 287) is a north–south United States highway. At 1,791 miles (2,882 km) long, it is the second longest three-digit U.S. Route, behind US 281. It serves as the major truck route between Dallas-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 unnumbered park roads serve as a connector.
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).
Northwest Parkway is a 9.05-mile (14.56 km) limited-access toll road that runs from US 36 to the I-25/E-470 interchange. Both terminus are in Broomfield, northwest of Denver. In combination with E-470 and State Highway 470, Northwest Parkway forms a partial beltway of approximately 83 miles (134 km) around the Denver metropolitan area. Some 18 miles (29 km) lie between the west end of Northwest Parkway and the northwest end of SH 470, the opposite end of the beltway.
Interstate 35W (I-35W), a north–south Interstate Highway, is the western half of I-35 where it splits to serve the Dallas–Fort Worth metropolitan area. I-35 splits into two branch routes, I-35W and I-35E, at Hillsboro. I-35W runs north for 85.2 miles (137.1 km), carrying its own separate sequence of exit numbers. It runs through Fort Worth before rejoining with I-35E to reform I-35 in Denton. It is the more direct route for long-distance expressway traffic, as is noted on signs on I-35 leading into the I-35W/I-35E splits. During the 1970s, billboards existed on I-35 encouraging travelers to take the faster and shorter I-35W route.
State Highway 3 (SH 3) is a short north–south state highway in La Plata County, Colorado, United States. It follows the former alignment of U.S. Route 160 (US 160) and U.S. Route 550 (US 550) south of downtown, lying across the Animas River from the modern highway constructed about 1980.
State Highway 11 is a 1.35-mile-long (2.17 km) long north–south state highway in the U.S. state of Colorado. It runs from U.S. Highway 138 (US 138) and US 385 in Julesburg to the Nebraska state line.
Baseline Road is a major east-west street in Boulder, Colorado that extends east of the city through parts of four counties. The western terminus of Baseline Road is at Flagstaff Mountain in the City of Boulder Mountain Parks. The eastern terminus is at 16800 Watkins Road, about 6 miles (9.7 km) east of Lochbuie on the boundary between Adams and Weld Counties. The total length of Baseline Road is approximately 38 miles (61 km), all of which is within the Denver-Aurora-Boulder Combined Statistical Area in Colorado. Baseline Road runs almost exactly along the 40th line of latitude.
U.S. Route 183 (US 183) is a north-south U.S. highway that begins in Texas in Refugio at an intersection with US 77 concurrent with US 77 Alt. The highway runs through many small communities with Austin being the only major city along its route. The highway exits Texas concurrent with US 70, crossing into Oklahoma.
State Highway 145 is a state highway in western Colorado. It runs for 116.879 miles (188.1 km) between U.S. Route 160 (US 160) in Cortez and SH 141 near Naturita.
State Highway 128 (SH 128) is a 10 mi (16.1 km) 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.
Wyoming Highway 230 is a 78.74-mile-long (126.72 km) state highway in the U.S. State of Wyoming. It is known locally as Rivers Road and travels from WYO 130 approximately 8 miles (13 km) south of Saratoga south from there to intersect WYO 70 in Riverside and then heads southeast to the Colorado-Wyoming State Line. The Route continues southeast in Colorado as Colorado State Highway 125, then it turns northeast as Colorado State Highway 127. At the Wyoming-Colorado State Line, WYO 230 resumes. WYO 230 then heads northeast towards Laramie to end at Business Loop I-80/US 30/US 287 in Laramie. WYO 230 provides a scenic and less-traveled alternative for travelers who want to avoid Interstate 80 and US 30 but cannot take WYO 130 which is closed in the winter.
State Highway 392 (SH 392) is a 45.33 mi (73.0 km) state highway in Larimer and Weld counties in Colorado, United States, that connects U.S. Route 287 (US 287) on the southern edge of Fort Collins with Colorado State Highway 14 (SH 14) in Briggsdale.
U.S. Route 40 (US 40) is a part of the U.S. Highway System that travels from Silver Summit, Utah, to Atlantic City, New Jersey. In the U.S. state of Colorado, US 40 is a major east–west route. It crosses the Rocky Mountains, passing over the Continental Divide at Berthoud Pass before descending to the Front Range. It then traverses through the Denver Metro Area, then exits by following Interstate 70 (I-70) and US 287. It is concurrent with US 287 for about 145 miles to Kit Carson. US 40 exits into Kansas east of Arapahoe in Cheyenne. At a length of almost 500 miles, US 40 is the longest numbered route in the state.
U.S. Route 36 is a United States highway that travels from Rocky Mountain National Park, Colorado to Uhrichsville, Ohio. In Colorado, the highway traverses an east–west route mostly in the northern portion of the Great Plains. At its west end, the road connects several small mountain towns such as Estes Park and Lyons to the larger metropolitan areas of Boulder and Denver. As it continues eastward, it connects to several other small towns and rural highways on the plains before crossing the state line into Kansas.
U.S. Highway 385 (US 385), also known as the High Plains Highway north of Cheyenne Wells, is the easternmost significant north–south state highway in the U.S. state of Colorado, and many of the state's major east–west routes intersect with US 385 before crossing into neighboring Kansas and Nebraska. It enters the state from Oklahoma while overlapped with US 287, but splits at Lamar to follow its own route through the Eastern Plains to Nebraska.
State Highway 66 is a 22.7 mi (36.5 km) long east-west state highway in Boulder and Weld counties in Colorado. The highway extends from the foothills of the Rocky Mountains at a junction with U.S. Route 36 and SH 7 southeast of Lyons, proceeding east through the northern edge of Longmont, to Platteville where it ends at US 85. Although a number of western states retain their "state highway 66" as the decommissioned US 66, the "Mother Road" did not run through Colorado, and SH 66 has no connection to the famed Historic Route 66.
There are 13 active business routes of Interstate 70 in Colorado. Interstate 70 (I-70) spans Colorado in an east–west fashion, holding many business loops and spurs along the way, varying from lengths of 0.22 miles (0.35 km) to 27.47 miles (44.21 km), with a total of 55.51 miles (89.33 km). Four other business routes also used to exist within the state.
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.
State Highway 53 is a state highway in Adams County, Colorado, United States, north of Denver. SH 53's southern terminus is at Interstate 25 (I-25) and U.S. Route 87 north of Denver, and the northern terminus is at SH 224 east of Westminster.
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.
