State Route 121, 125 and 127 in Colorado

State Route 121 in Colorado

SR-121
Get started littleton
End Broomfield
Length 30 mi
Length 49 km
Route
littletonLakewood

Wheat Ridge

arvada

Broomfield

According to topschoolsintheusa, State Route 121, commonly known as State Highway 121 or SH 121, is a state route in the U.S. state of Colorado. The road forms a north-south route through western Denver metropolitan area, from south of Littleton to Broomfield. SH 121 is 49 kilometers long.

Travel directions

SH 121 is formed by Wadsworth Boulevard, Wadsworth Bypass and Wadsworth Parkway, from south to north. SH 121 begins at an intersection with Waterton Road near a Lockheed Martin research center south of Littleton. SH 121 then heads north and is first formed by Wadsworth Boulevard, an urban arterial with 2×2 to 2×3 lanes and traffic lights. There is a connection to SH 470 at Littleton. It then passes through the western Lakewood and Wheat Ridge suburbs of Denver, crossing US 285 and US 6. At Arvada the connection with the Interstate 70. followsand SH 121 is thereafter called the Wadsworth Bypass around the old town of Arvada. Until the intersection with 88th Avenue, the road is still called Wadsworth Boulevard, north of it Wadsworth Parkway. In Broomfield, SH 121 ends at the connections with US 36 and US 287.

History

SH 121 is one of the original state highways from the 1920s. The exact length through the Denver region has varied. Originally a largely rural road, it was transformed into an urban arterial by the growth of Denver. The road was paved in the 1930s-40s. In 1958 the Wadsworth Bypass opened around Arvada. The Wadsworth Parkway opened in 1970.

Traffic intensities

Every day, 24,000 vehicles drive between the Lockheed-Martin factory and SH 470. Through the Denver region, the road usually has 40,000 to 50,000 vehicles per day with no real peaks or dips.

State Route 125 in Colorado

SR-125
Get started Granby
End Wyoming state line
Length 75 mi
Length 121 km
Route
GranbyWalden

Cowdrey

Wyoming WY-230

State Route 125, commonly known as State Highway 125 or SH 125 is a state route in the U.S. state of Colorado. The road forms a north-south route through the central north of the state, from Granby through Walden to the Wyoming state border. SH 125 is 121 kilometers long.

Travel directions

SH 125 begins just west of Granby on US 40 at 2,400 feet above sea level. The road then heads north and winds through a sparsely populated canyon, flanked by mountain ranges with peaks up to 3,800 meters. The road takes you over the easy-to-ride 2,944-foot Willow Creek Pass. Then you enter a very wide valley formed by Jackson County. SH 125 passes through Walden, the only significant village in the region. The road then heads slightly northwest before reaching the Wyoming state border in an uninhabited valley. Then State Route 230 in Wyoming continues to Rawlins.

History

SH 125 is one of the original 1920s state highways and ran from Granby to the junction with SH 127 north of the hamlet of Cowdrey. In 1946, SH 125 was extended to the Wyoming state border. The road was mainly asphalted in the 1940s-50s and was continuously asphalted in 1956.

Traffic intensities

600 vehicles drive daily at Granby, dropping to just 300 vehicles over Willow Creek Pass. Just before Walden, this rises to 500 vehicles a day. Up to 3,100 vehicles drive through Walden, and 900 vehicles drive up to SH 127 at Cowdrey. Only 300 vehicles continue to the Wyoming state border.

State Route 127 in Colorado

SR-127
Get started Cowdrey
End Wyoming state line
Length 9 mi
Length 15 km
Route
Wyoming WY-230

State Route 127, commonly known as State Highway 127 or SH 127 is a state route in the U.S. state of Colorado. The road forms a 15-mile link in the north of the state, to the border with the state of Wyoming.

Travel directions

North of the hamlet of Cowdrey, SH 125 and SH 127 split, with SH 127 running first east, then north through a canyon, with no very much higher mountains around. There are no places on the route. After 15 kilometers you reach the border with the state of Wyoming, after which State Route 230 continues in Wyoming to Laramie.

History

One of the original 1920s state highways, SH 127 originally ran from the Wyoming border to the Wyoming border, connecting the two portions of State Route 230 in Wyoming, which due to the Snowy Range it does not run directly to Laramie. The western portion of SH 127 was renumbered as part of SH 125 in 1946. The road was paved in the early 1950s.

Traffic intensities

800 vehicles use the SH 127 every day.

State Route 127 in Colorado

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