Interstate 170
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| Inner Belt Expressway | |
I-170 highlighted in red | |
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| Auxiliary route of Lua error in package.lua at line 80: module 'Module:Road data/util' not found. | |
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| NHS | Entire route |
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| South end | Template:Jct in Richmond Heights |
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| North end | Template:Jct in Hazelwood |
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Interstate 170 (I-170), also known as the Inner Belt Expressway, is an 11.17-mile (17.98 km) north–south auxiliary Interstate Highway in Greater St. Louis, Missouri. I-170 connects to I-270 at its northern terminus and I-64 at its southern terminus. I-170 crosses its parent, I-70, near St. Louis Lambert International Airport.
Route description
History
I-170 was originally intended to provide an inner beltway within I-270 through St. Louis County extending to I-55 in the southern part of the county, commonly called South County;[2] however, the portion of the route south of I-64/US Route 40 (US 40) was canceled due to local opposition. The portion of MetroLink's Cross County Extension south of I-64 runs roughly along the proposed alignment.[3]
The southern portion of I-170 was built using St. Louis County funds in the 1960s through a shallow valley. It was signed as Route 725.
Recent construction
The southern two interchanges on I-170 (at I-64/US 40 and Galleria Parkway) were rebuilt during the first phase of the New I-64 project. The project added direct access to I-170 from eastbound I-64, eliminated access to Galleria Parkway from northbound I-170, and revised Eager Road access to and from I-170.[4]
Southern extension
Proposals have been made to extend I-170 south beyond its termination at I-64/US 40, and so connect to I-55, I-270, and I-44, and to towns such as Richmond Heights, Brentwood, Maplewood, and Marlbourough. These towns currently lack direct access to the Interstates, St. Louis Lambert International Airport, South County, and to each other. Many commuters travel on slower surface streets, such as Hanley Road or River Des Peres Boulevard, raising traffic in Shrewsbury and other residential towns.[5] These proposals had been postponed due to lack of funding.[6]
Exit list
The entire route is in [[St. Louis County, Template:Jct/statename|St. Louis County]].
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| Location | mi[7] | km | Exit | Destinations | Notes | |
|---|---|---|---|---|---|---|
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References
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- ^ Page Module:Citation/CS1/styles.css has no content.Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Archived from the original on February 13, 2023. Retrieved February 22, 2023.
- ^ Page Module:Citation/CS1/styles.css has no content.Sutin, Phil; Hopgood, Mei-Ling (January 9, 1997). "Hundreds of Homes Face Razing for New Highway". St. Louis Post-Dispatch.
- ^ Page Module:Citation/CS1/styles.css has no content.Sutin, Phil (March 14, 1997). "Westfall Sours On Extension of Interstate 170". St. Louis Post-Dispatch.
- ^ Page Module:Citation/CS1/styles.css has no content."Project Overview". The New I-64. Missouri Department of Transportation. Archived from the original on May 4, 2007. Retrieved May 28, 2007.
- ^ Page Module:Citation/CS1/styles.css has no content.Leiser, Ken. "Linking South County, Clayton studied". St. Louis Post-Dispatch. Archived from the original on May 20, 2017. Retrieved January 19, 2018.
- ^ Page Module:Citation/CS1/styles.css has no content."South County Connector: 1st Phase of 170 South Extension?". FOX2now.com. May 14, 2013. Retrieved January 14, 2018.
- ^ Page Module:Citation/CS1/styles.css has no content.Missouri Department of Transportation (March 18, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved March 18, 2015.
External links
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