Interstate 170
Auxiliary Interstate Highway in St. Louis County, Missouri, United States / From Wikipedia, the free encyclopedia
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For the former route in Baltimore, Maryland, see Interstate 170 (Maryland).
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.
Quick Facts Route information, Length ...
Inner Belt Expressway | ||||
Route information | ||||
Auxiliary route of I-70 | ||||
Maintained by MoDOT | ||||
Length | 11.17 mi[1] (17.98 km) | |||
Existed | 1956[citation needed]–present | |||
NHS | Entire route | |||
Major junctions | ||||
South end | I-64 / US 40 in Richmond Heights | |||
Major intersections | I-70 in Berkeley | |||
North end | I-270 in Hazelwood | |||
Location | ||||
Country | United States | |||
State | Missouri | |||
Counties | St. Louis | |||
Highway system | ||||
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