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EspañolINTERSTATE 270 (ILLINOIS-MISSOURI)
'Interstate 270' (abbreviated 'I-270') makes up a large portion of the outer belt freeway in the St. Louis, Missouri metropolitan area. The counterclockwise terminus of I-270 is at the junction with Interstate 55 in Mehlville, Missouri; the clockwise terminus of the freeway is at the junction with I-55 and I-70 north of Troy, Illinois. The entire stretch of I-270 is 50.59 miles.
Interstate 270 between Interstate 70 and Interstate 55 was formerly designated Interstate 244, a Western bypass of St. Louis, Missouri. It was originally proposed by Missouri as 'Interstate 144', but the road was a beltway (or part of one), so the AASHTO assigned it the number "244". By the late 1970s, the highway was integrated as a part of "270" for consistency.
| Contents |
| History |
| Future |
| Exit list |
| Missouri |
| Illinois |
| See also |
| References |
History
During the Great Flood of 1993, the New Chain of Rocks Bridge carrying I-270 over the Mississippi River was the only bridge open from St. Louis to Keokuk, Iowa.
The last major construction project on I-270 occurred from 1995-1998. Both the Missouri Department of Transportation and the Illinois Department of Transportation upgraded I-270 to modern standards from Lilac Ave. to I-255.
On September 13, 1999, a fatal accident involving a tractor-trailer occurred in the westbound lanes of I-270[2] in front of the now-defunct St. Thomas Aquinas-Mercy High School (now North County Christian School) in North St. Louis County. This accident sped up efforts that led to the I-170/270 interchange reconstruction that went from 2001 to 2004.
A major chemical spill from a FedEx truck between the Route 367 and Lilac exits on October 28, 2002 forced detours and lengthy delays.[3]
There were plans to sign an eight mile section of I-270 from Glen Carbon to Edwardsville as I-870. However, this idea was discarded.[4]
Future
IDOT wants to widen I-270 from Lilac to I-255 from four lanes to six, but no money is available at the current time.[5]
Exit list
Missouri
| County | Location | MileDeLorme Street Atlas USA 2007, Toggle Measure Tool | # | Destinations | Notes |
|---|---|---|---|---|---|
| Traffic continues on I-255. | |||||
| St. Louis | Green Park | 0.00 | 1A-B | .svg) | |
| 1.89 | 2 |  | |||
| Sunset Hills | 3.64 | 3 |  | ||
| 5.68 | 5A | .svg)   | Western terminus of Route 366 | ||
| 5.98 | 5B | | |||
| Kirkwood | 7.56 | 7 | Big Bend Road | Southbound exit and northbound entrance only[6] | |
| Des Peres | 8.45 | 8 | Dougherty Ferry Road | newly constructed bridge over highway) | |
| 9.91 | 9 |  | |||
| Town and Country | 12.43 | 12A-B | .svg)   | ||
| Creve Coeur | 13.58 | 13 |  | ||
| 14.73 | 14 |  | |||
| Maryland Heights | 16.31 | 16A |  | Western terminus of SSR D | |
| 16.66 | 16B |  | Eastern terminus of Route 364 | ||
| 17.67 | 17 | Dorsett Road | |||
| Bridgeton | 20.04 | 20A-B | .svg) | ||
| 20.81 | 20C |      | |||
| 22.48 | 22 |  | Eastern terminus of Route 370 | ||
| 22.18 | Missouri Bottom Road | Eastbound exit and westbound entrances only[7] | |||
| Hazelwood | 23.58 | 23 | McDonnell Boulevard | ||
| 25.24 | 25A-B |  | |||
| 26.31 | 26A | .svg) | Northern terminus of I-170 | ||
| 26.61 | 26B | North Hanley Road/Graham Road | |||
| Florissant | 27.57 | 27 |  | ||
| 28.10 | 28 | Washington Street/Elizabeth Avenue | |||
| 29.59 | 29 | West Florissant Avenue | |||
| 30.29 | 30A |  | |||
| 30.64 | 30B | Old Halls Ferry Road | |||
| Moline Acres | 31.82 | 31A-B |  | ||
| Bellefontaine Neighbors | 32.79 | 32 | Bellefontaine Road | ||
| 33.77 | 33 | Lilac Avenue | |||
| 34.88 | 34 | Riverview Drive | |||
Illinois
| County | Location | Mile | # | Destinations | Notes |
|---|---|---|---|---|---|
| Madison | 2.73 | 3A-B |  | ||
| 4.39 | 4 |  | |||
| 5.92 | 6A-B |  | |||
| 7.16 | 7A-B |   | Combined into a single exit 7 eastbound. | ||
| 9.13 | 9 |  | |||
| 11.87 | 12 |  | |||
| 14.57 | 15A-B |   | Eastern terminus of Interstate 270. Continues as Interstate 70 east of this intersection. Mileposts continue ascending from this point on I-70 EB. |
See also
References
1. Federal Highway Administration Route Log and Finder List, Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002
2. Retrieved from http://snewpy.com/1999/09/15/270crash.html via web.archive.org
3. http://www.kmov.com/topstories/kmov_localnews_021030_270crash.10c641073.html
4. Interstate 870
5. http://www.siu.edu/~econdev/oerd/5year/supportprojects/transinfrastructureswregion.htm
6. Big Bend Road interchange
7. Route 370 and Missouri Bottom Road interchange
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