|Maint:||E-470 Public Highway Authority|
|Terminus A:||in Lone Tree|
|Junction:|| in Aurora|
in Commerce City and Brighton
|Ending Terminus:||in Thornton|
E-470 is a 46-mile (74-km) limited-access tollway traversing the eastern portion of the Denver-Aurora Metropolitan Area in Colorado. The toll road is not a state highway, but is instead maintained by the E-470 Public Highway Authority.
The tollway begins at the I-25 / SH 470 interchange in Lone Tree and runs east and north through Aurora, intersecting with I-70. The highway continues north, passing west of Denver International Airport to connect with I-76 in Brighton and Commerce City before curving west and ending at an interchange with I-25 and the Northwest Parkway in Thornton.
E-470 is the eastern portion of what was originally conceived as I-470, an outer beltway for metropolitan Denver. Plans for this eastern extension of State Highway 470 gained momentum in the 1980s, as Denver moved forward with plans for a new international airport in its corridor. Recognizing the highway's development potential, a number of local governments joined together to create the E-470 Public Highway Authority, a quasi-governmental entity that would construct the highway. The highway would be financed through tolls, a relative rarity in the western U.S. The first section, between I-25 in the south and Parker Road in Douglas County, opened in 1991. The highway was opened segment by segment until the final stretch connecting to I-25 in the north in Adams County opened for traffic in 2003.
The toll rate on E-470, roughly 27 cents per mile, is one of the highest rates of any toll road in the United States. E-470 was the first highway in the United States to implement full highway-speed electronic tolling. In its early years, traffic was light as the completed portion was short and traversed a largely undeveloped area. With the opening of Denver International Airport in 1995, E-470 came into its own as a direct route to the airport from the rapidly growing southern tier of the metropolitan area. Upon its completion, the highway provided the same access for northern Colorado, itself a high-growth area. However, perhaps the most significant growth in the region will occur in the E-470 corridor itself, which spawned numerous annexations by member cities; Commerce City has doubled in land area in anticipation of this new development. In the coming decades, 250,000 new residents are expected along the E-470 corridor in Aurora alone, which would nearly double that city's population.
The E-470 Public Highway Authority consists of eight member jurisdictions: Adams, Arapahoe, and Douglas counties and the cities of Aurora, Brighton, Commerce City, Thornton, and the town of Parker. In addition to all of these jurisdictions, E-470 also passes through the City and County of Denver near Denver International Airport. Affiliate, non-voting members of the Authority, which the highway does not directly serve, are the cities of Arvada and Greeley, and Weld County and the City and County of Broomfield. Ex-officio members are the Colorado Department of Transportation, the Denver Regional Council of Governments and the Regional Transportation District. The authority is headquartered in Aurora.
|rowspan=7||Douglas||Lone Tree||0.000||1A||South end of E-470; continues west as SH 470|
|rowspan=3||Meridian||1B||Jamaica Street||Westbound exit and eastbound entrance|
|1.711||2||Peoria Street – Centennial Airport|
|2.700||colspan=3||Meridian Toll Plaza|
|10.683||10||Smoky Hill Road|
|13.352||13||Quincy Avenue – Aurora|
|16.150||colspan=3||South Aurora Toll Plaza|
|20.375||Colfax Avenue||At-grade intersection|
|22.610||colspan=3||North Aurora Toll Plaza|
|24.477||24||56th Avenue – Front Range Airport|
|colspan=2||Denver||27.849||28||Peña Boulevard – Denver International Airport||Signed as exits 28A (east) and 28B (west)|
|rowspan=10||Adams||rowspan=4||Commerce City||30.562||31||96th Avenue|
|34.130||34||120th Avenue to I-76 west|
|rowspan=2||35.491||rowspan=2||35||rowspan=2||rowspan=2||Northbound exit and southbound entrance|
|40.220||colspan=3||Brighton Toll Plaza|
|rowspan=2||47||rowspan=2||rowspan=2||North end of E-470; continues west as Northwest Parkway|