State Route 119 and 140 in Colorado

By | October 14, 2022

State Route 119 in Colorado

Get started golden
End longmont
Length 64 mi
Length 103 km
Black Hawk

The Netherlands




According to topschoolsintheusa, State Route 119, commonly known as State Highway 119 or SH 119 is a state route in the U.S. state of Colorado. The road forms a north-south route through the Rocky Mountains and the Boulder and Longmont urban area. SH 119 is 103 kilometers long.

Travel directions

The SH 72/119 in the Netherlands.

SH 119 splits off US 6 well west of Golden, then heads north through the mountains. The road is quite winding and usually runs between 2,500 and 2,800 meters above sea level. To the west lies a high mountain range. The only place of size on the part through the mountains is the village of the Netherlands, where there is a short double numbering with the SH 72. From the Netherlands one descends through a canyon to the city of Boulder.

SH 119 runs through downtown Boulder and follows the street network in that city, via Canyon Boulevard and double-numbered with US 36 on 28th Street in the east of the city. In the northeast of Boulder begins the Diagonal Highway, a major 2×2 divided highway with a wide median strip between Boulder and Longmont. The area is suburbanized. The road runs diagonally through the grid between Boulder and Longmont. SH 119 passes through the south of the city of Longmont via Ken Pratt Boulevard which has 2×2 to 2×3 lanes. To the east, SH 119 links Longmont to Interstate 25, 25 miles north of Denver.


SH 119 is one of the original state highways from the 1920s and at the time ran from Idaho Springs via the Netherlands to Boulder. In 1938 the southern starting point was changed to US 6 southeast of Black Hawk. In 1939, the section between Boulder and Longmont became part of SH 119. This was not yet the diagonal road through the grid, traffic had to turn left and right numerous times through the grid between the two cities. At the time, the area was still very rural in character.

The road through the Rocky Mountains was paved in the 1940s, between US 6 and the Netherlands in 1946, and continued to Boulder in the late 1940s. By 1960, SH 119 had been straightened as the Diagonal Highway between Boulder and Longmont, on a new, paved route. In 1963, SH 119 was extended from Longmont to I-25 over the former SH 254.

The SH 119 has been doubled between Boulder and Longmont to a 2×2 divided highway, with a wide central reservation so that it would not be very difficult to build a freeway in between later. The section between Boulder and Niwot opened in 1975 and on to Longmont in 1976. In the late 1990s, the connection to the I-25 was converted to a much wider connection. In 2003, the Longmont bypass opened to traffic, before that SH 119 was a short stretch with US 287 double-numbered.


It is not difficult to build a freeway between the lanes of SH 119 between Boulder and Longmont. The current road can function as a frontage road. However, there are no concrete plans for this. Road construction is also not very high on Boulder’s agenda.

Traffic intensities

Every day, 2,500 to 4,000 vehicles drive as far as the Netherlands and 4,000 to 6,000 vehicles drive through the Boulder Canyon as far as Boulder, rising to 19,000 vehicles near the center of Boulder. There are 30,000 vehicles per day in the north of Boulder. On the Diagonal Highway between Boulder and Longmont, 27,000 to 56,000 vehicles per day and 25,000 to 40,000 vehicles continue along Longmont to I-25.

State Route 140 in Colorado

Get started New Mexico state line
End Hesperus
Length 23 mi
Length 38 km
New Mexico NM-170redmesa


State Route 140, commonly known as State Highway 140 or SH 140 is a state route in the U.S. state of Colorado. The road forms a north-south route in the southwest of the state, near Durango. SH 140 is 38 kilometers long.

Travel directions

SH 140 begins at the New Mexico state border and ends at US 160 in the hamlet of Hesperus, not far west of the city of Durango. SH 140 passes through a fairly flat area, with mountains to the west. The only places on the route are hamlets. On the New Mexico side, State Route 170 out of Farmington joins SH 140.


SH 140 is one of the original 1920s state highways, but at the time it was just a short spur from US 160 to Fort Lewis, which was paved in 1938. The road was extended in phases through 1963 to the border with the state of New Mexico. In 1965 the entire route was asphalted.

SH 140 has some through importance as it is one of two routes between the regional towns of Farmington and Durango.

Traffic intensities

Every day, 1,700 to 2,500 vehicles use the SH 140.

State Route 140 in Colorado