Interstate 270 in Colorado


Get started Western Hills
End Denver
Length 7 mi
Length 11 km
0 → Denver / Cheyenne1 → Omaha

2 Vasquez Boulevard

4 → Kansas City

Interstate 270 or I -270 is an Interstate Highway in the American city of Denver, Colorado. The highway provides a short connection north of Denver, across the city’s largest business park. Interstate 270 is double-numbered, but not signposted as US 36. Interstate 270 is 11 kilometers long.

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Travel directions

The highway begins in the suburb of Western Hills, at the interchange with Interstate 25, which runs from Denver to Cheyenne. Here US 36 from Boulder turns into I-270. There are 2×3 lanes available, and it crosses the largest industrial area in the city. After only 2 kilometers one crosses Interstate 76, which runs from Denver to the state of Nebraska. After this, I-270 follows a southeasterly direction, and 2×2 lanes are available. There are two oil refineries along the highway. On the north side of Denver, I-270 merges with Interstate 70, which runs from Denver to Kansas City.

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Construction of Interstate 270 began in 1965, and three years later the first section between US 85 and I-70 was opened in Commerce City. Shortly thereafter, in 1970, the second section opened between I-76 and US 85. For a long time, the link between I-25 and I-76 was missing, forcing through traffic to divert and the interchange between I-25 and I-76. I-76 unnecessarily burdened. The westbound highway was opened in June 2001, followed by eastbound carriageway in March 2002, completing the highway.

In 2022, it was announced that four bridges (eight structures) of I-270 between I-76 and Vasquez Boulevard would be replaced.

Opening history

From Unpleasant Length Opening
Exit 2 Exit 4 3 km 02-08-1968
Exit 1 Exit 2 2 km 23-10-1970
exit 0 Exit 1 1 km 00-03-2002

Traffic intensities

The traffic volumes are between 57,800 and 91,100 vehicles per day.

Pena Boulevard

Pena Boulevard
Get started Aurora
End Denver Int’l Airport
Length 11 mi
Length 18 km
1 → Denver / Kansas City2 Green Valley Ranch Boulevard

3 56th Avenue

5 Tower Road

6 → Denver Beltway

8 Gun Club Road

9 Jackson Gap Road

11 Denver International Airport

Peña Boulevard is a freeway in the American city of Denver. It is a highway that connects the Denver airport to I-70 at the suburb of Aurora. The road is 18 kilometers long.

Travel directions

Pena Boulevard.

Near the suburb of Aurora, Peña Boulevard exits from I-70. Only the connections to and from the west are entirely grade-separated. There are 2×2 lanes available, with a wide median strip. The highway continues through undeveloped area, and after about 10 miles intersects E-470, Denver ‘s eastern beltway. Near the airport, the road loses its highway status, and you pass the large parking lots. The road ends at the main terminal.


The highway opened in 1995 to serve Denver’s new airport, which is quite far out of town. It is one of the few highways in the United States that is managed by a city, the city of Denver. Initially there was confusion about the exact management of the road, which led to the highway not being pushed aside in 1997 during a blizzard that left hundreds of vehicles stuck in the snow. It is also the only highway in the United States with an accent on one of the letters in the name.

Royal Gorge Bridge

Royal Gorge Bridge
Spans Arkansas River
Lanes 1×2
Total length 380 meters
Main span 270 meters
Bridge deck height 291 meters
Opening 11-1929
Traffic intensity ? mvt/day
Location Map

The Royal Gorge Bridge is a suspension bridge in the United States, located near Cañon City in Colorado. It is mainly a tourist attraction.


The Royal Gorge Bridge spans the gorge of the Arkansas River west of Cañon City. The bridge is 380 meters long, with a main span of 270 meters. The bridge deck is a maximum of 291 meters above the valley floor and is the highest bridge in the United States. The bridge deck consists of wooden planks and is 5.5 meters wide. County Road 3A, a minor road, crosses the bridge. The bridge is primarily a tourist attraction. Motorized traffic is allowed.


The bridge was built in 5 months between June and October 1929. The purpose of the bridge was to create a tourist attraction. The construction cost $350,000. It was a toll road, and the bridge was listed in the National Register of Historic Places (NRHP) in 1983. The bridge was also renovated that year. In 2013, a forest fire destroyed much of the area and buildings around the bridge, but the bridge remained intact.


The bridge was the tallest in the world when it opened (measured from valley to bridge deck) and remained the tallest in the world until 2001, when the Liuguanghe Bridge opened in China. Since then, the bridge is still the tallest in the United States.

Interstate 270 in Colorado