Interstate 170 is the designation for an interstate route in the St. Louis, Missouri

St. Louis, Missouri

St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...

 metropolitan area. I-170, also known as the Inner Belt Expressway, is an 11.17 miles (18 km) highway traveling north–south through the St. Louis suburbs of Hazelwood

Hazelwood, Missouri

Hazelwood is a second-ring suburb of St. Louis, located in northwestern St. Louis County, Missouri. The population was 25,703 as of the 2010 census. Hazelwood, a northern suburb of St. Louis, is located north of Lambert-St...

, Berkeley

Berkeley, Missouri

Berkeley is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. The population was 8,978 at the 2010 census. Portions of Lambert-St...

, St. John

St. John, Missouri

St. John is a suburban city in St. Louis County, Missouri, with its commercial district centered along St. Charles Rock Road. It is a few miles southeast of Lambert-Saint Louis International Airport.As of the 2010 census, the city population was 6,517....

, Charlack

Charlack, Missouri

Charlack is a city in St. Louis County, Missouri, USA. The population was 1,363 at the 2010 census.-Geography:Charlack is located at . The name of the city comes from its location, at the intersection of St...

, Vinita Park

Vinita Park, Missouri

Vinita Park is a city in St. Louis County, Missouri, United States, located just east of I-170 and south of St. Charles Rock Road. The population was 1,880 at the 2010 census.-Geography:Vinita Park is located at ....

, Sycamore Hills

Sycamore Hills, Missouri

Sycamore Hills is a village in St. Louis County, Missouri, United States. The population was 668 at the 2010 census.-Geography:Sycamore Hills is located at ....

, Bel-Ridge

Bel-Ridge, Missouri

Bel-Ridge is a northern suburban village in St. Louis County, Missouri, United States. The population was 2,737 at the 2010 census. Bel-Ridge is part of the Normandy School System and borders the affluent villages of Bel-Nor and Bellerive.-Geography:...

, Olivette

Olivette, Missouri

Olivette is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. The population was 7,737 at the 2010 census.-History:...

, Overland

Overland, Missouri

Overland is a city in St. Louis County, Missouri, United States. The population was 16,062 at the 2010 census.-Geography:Overland is located at ....

, University City

University City, Missouri

University City is an inner-ring suburb in St. Louis County, Missouri. The population was 35,371 in 2010 census. The city was shaped by Washington University in St. Louis, whose campus abuts the city to the southeast....

, Ladue

Ladue, Missouri

Ladue is an inner-ring suburb of St. Louis, located in central St. Louis County, Missouri, USA. As of the 2010 census, the city had a population of 8,521....

, Clayton

Clayton, Missouri

Clayton is an inner-ring suburb of St. Louis and the county seat of St. Louis County, Missouri. The population was 15,939 at the 2010 census. The city was organized in 1877 and is named after Ralph Clayton, who donated the land for the courthouse.-Geography:...

, and Richmond Heights

Richmond Heights, Missouri

Richmond Heights, a city in St. Louis County, is an inner-ring suburb of St. Louis, Missouri. The population was 8,603 at the 2010 census. According to Robert L. Ramsay, the name was suggested by Robert E. Lee, who thought the topography of the area resembled Richmond, Virginia...

, ending just north of the city of Brentwood

Brentwood, Missouri

Brentwood is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri. The population was 8,055 at the 2010 census. Brentwood is home to Brentwood High School, a 2006 National Blue Ribbon Award winner, and Mark Twain Elementary School, a 2009 National Blue Ribbon Award...

.

I-170 connects to Interstate 270

Interstate 270 (Illinois-Missouri)

Interstate 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...

 at its northern terminus and Interstate 64 at its southern terminus; at exits 7A and 7B, I-170 crosses its parent, I-70. Interstate 170 also provides access to Lambert-St. Louis International Airport.

History

I-170 was originally intended to provide an inner beltway within I-270 through St. Louis County extending to I-55 in the South County area; however, the portion of the route south of I-64/US 40 was canceled due to local opposition. The portion of MetroLink

St. Louis Metrolink

MetroLink is the light rail transit system in the Greater St. Louis area of Missouri and the Metro East area of Illinois. The entire system currently consists of two lines connecting Lambert-St. Louis International Airport and Shrewsbury, MO with Scott Air Force Base near Shiloh, Illinois through...

's Cross County Extension south of I-64 runs roughly along the proposed alignment.

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

The southern two interchanges on I-170 (at I-64/US 40 and Galleria Parkway) were reconstructed as part of the first phase of the New I-64 project. Most notably, the new interchange includes direct access to I-170 from eastbound I-64; however, access to Galleria Parkway from northbound I-170 was eliminated. Eager Rd access to and from I-170 was also revised in the New I-64 project.

Exit list

The entire route is in St. Louis County

St. Louis County, Missouri

St. Louis County is a county located in the U.S. state of Missouri. Its county seat is Clayton. St. Louis County is part of the St. Louis Metro Area wherein the independent City of St. Louis and its suburbs in St. Louis County, as well as the surrounding counties in both Missouri and Illinois all...

.

Location	Mile	# Exit number An exit number is a number assigned to a road junction, usually an exit from a freeway. It is usually marked on the same sign as the destinations of the exit, as well as a sign in the gore....	Destinations	Notes
Richmond Heights Richmond Heights, Missouri Richmond Heights, a city in St. Louis County, is an inner-ring suburb of St. Louis, Missouri. The population was 8,603 at the 2010 census. According to Robert L. Ramsay, the name was suggested by Robert E. Lee, who thought the topography of the area resembled Richmond, Virginia...	0.00	1		Southbound exit and northbound entrance; signed as exits 1A (east) and 1B (west)
	0.00	1C	Eager Road, Brentwood Boulevard north	Southbound exit and northbound entrance
Clayton Clayton, Missouri Clayton is an inner-ring suburb of St. Louis and the county seat of St. Louis County, Missouri. The population was 15,939 at the 2010 census. The city was organized in 1877 and is named after Ralph Clayton, who donated the land for the courthouse.-Geography:...	0.84	1D	Brentwood Boulevard south	No northbound exit
	1.12	1E	Forest Park Parkway
Ladue Ladue, Missouri Ladue is an inner-ring suburb of St. Louis, located in central St. Louis County, Missouri, USA. As of the 2010 census, the city had a population of 8,521....	1.55	1F	Ladue Road
University City University City, Missouri University City is an inner-ring suburb in St. Louis County, Missouri. The population was 35,371 in 2010 census. The city was shaped by Washington University in St. Louis, whose campus abuts the city to the southeast....	2.22	2	Delmar Boulevard
Olivette Olivette, Missouri Olivette is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. The population was 7,737 at the 2010 census.-History:...	3.39	3
Overland Overland, Missouri Overland is a city in St. Louis County, Missouri, United States. The population was 16,062 at the 2010 census.-Geography:Overland is located at ....	4.15	4
St. John St. John, Missouri St. John is a suburban city in St. Louis County, Missouri, with its commercial district centered along St. Charles Rock Road. It is a few miles southeast of Lambert-Saint Louis International Airport.As of the 2010 census, the city population was 6,517....	5.65	5
Bel-Ridge Bel-Ridge, Missouri Bel-Ridge is a northern suburban village in St. Louis County, Missouri, United States. The population was 2,737 at the 2010 census. Bel-Ridge is part of the Normandy School System and borders the affluent villages of Bel-Nor and Bellerive.-Geography:...	6.61	6
Berkeley Berkeley, Missouri Berkeley is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. The population was 8,978 at the 2010 census. Portions of Lambert-St...	7.43	7		Signed as exit 7A (east) and 7B (west)
	7.68	7C	Lambert-St. Louis Airport	Southbound exit is via exit 7B
	8.42	8	Scudder Road, North Hanley Road
	8.83	9A	Airport Road
	9.08	9B	Boeing	Northbound exit and southbound entrance
	9.61	9C	North Hanley Road	Northbound exit and southbound entrance
Hazelwood Hazelwood, Missouri Hazelwood is a second-ring suburb of St. Louis, located in northwestern St. Louis County, Missouri. The population was 25,703 as of the 2010 census. Hazelwood, a northern suburb of St. Louis, is located north of Lambert-St...	10.58	10	, Chicago	Northbound exit and southbound entrance; signed as exits 10A (west) and 10B (east)

External links

• Kurumi.com: Interstate 170