Interstate 470 (Kansas)
Encyclopedia
Interstate 470 is a 13.72 miles (22.1 km) loop highway that bypasses the downtown area of Topeka, Kansas
. I-470 begins at I-70
in western Topeka and heads southeast, running concurrent
with U.S. Route 75 (US 75). At the I-470 junction with I-335, the freeway becomes part of the Kansas Turnpike
until I-470 reaches its eastern terminus with I-70. The Kansas Turnpike was opened in the 1950s, comprising the eastern portion of the route. Several years later, in the early 1960s, the western section of I-470 was opened to traffic.
, US-40, and K-4
. US-75 approaches the interchange from the east and joins
I-470. The two routes head southeastward along the western edge of the city. Along this stretch of the interstate, there are three interchanges; exits 1B, 2, and 3. Because of both the southeast-to-northwest alignment of the road and the proximity of two cross-streets, exits 1B and 3 are each made up of two half-diamond interchanges. At exit 1B, traffic leaving eastbound I-470 is deposited onto Huntoon Street. Vehicles merging onto eastbound I-470 must access the entrance ramp from Wanamaker Road. The intersection of Huntoon and Wanamaker is adjacent to the freeway. Exit 3 is constructed similarly to exit 1B, while exit 2 is a standard diamond interchange.
Through southern Topeka, I-470 / US-75 curve to the south-southeast where they intersect Gage Boulevard. Further southeast, US-75 splits away from I-470 at a complex interchange with Burlingame Road. Just east of the US-75 interchange, there are two trumpet interchanges in quick succession. The first provides access to Topeka Boulevard, and the second connects to the Kansas Turnpike
. It also marks the northern end of I-335. I-470 merges onto the Kansas Turnpike and the two routes head northeast towards I-70. The tollway continues northeastward through southeastern Topeka, passing near to Lake Shawnee and eventually reaching I-470's terminus at I-70
.
The freeway is maintained by the Kansas Department of Transportation
(KDOT), who is responsible for maintaining and constructing highways in Kansas. As part of this role, KDOT surveys traffic on their highways in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2007, KDOT calculated that as few as 10,370 vehicles used I-470 daily along the Kansas Turnpike near the I-70 interchange and as many as 43,000 vehicles used I-470 daily west of the Gage Boulevard interchange. As part of the Interstate Highway System
, the entire route is listed on the National Highway System
, a system of roads that are important to the nation's economy, defense, and mobility.
that same year, several Interstate freeways were planned through Topeka, including I-70, I-335, and I-470. Construction began on I-470 after I-70's completion through Topeka. The segment of the I-470 freeway from the I-70 interchange to the Kansas Turnpike, most of which is concurrent with US 75 was still under construction in 1960. The next year, in 1961, the unfinished section of I-470 was opened to traffic. Since completion of the freeway, the route has not been changed. It retains its original routing.
, Shawnee County
.
{| class=wikitable
!Mile
!Exit
!Destinations
!Notes
|-
|0.00
|1A
|
|Westbound exit and eastbound entrance, exit 1A is for KC bound
|-
|1.05
|1B
|Huntoon Street, Wanamaker Road
|
|-
|2.22
|2
|21st Street
|
|-
|3.35
|3
|29th Street, Fairlawn Road
|
|-
|4.30
|4
|Gage Boulevard
|
|-
|5.74
|5
|
|East end of US-75 overlap
|-
|6.6
|6
|Topeka Boulevard
|Last free exit eastbound; former US-75
|-
|colspan=4 align=center|West end of toll road
|-
|6.69
|
|
|West end of KTA overlap; left exit westbound
|-
|-
|13.72
|
|
|Eastbound exit and westbound entrance
Topeka, Kansas
Topeka |Kansa]]: Tó Pee Kuh) is the capital city of the U.S. state of Kansas and the county seat of Shawnee County. It is situated along the Kansas River in the central part of Shawnee County, located in northeast Kansas, in the Central United States. As of the 2010 census, the city population was...
. I-470 begins at I-70
Interstate 70 in Kansas
In the U.S. state of Kansas, Interstate 70 contains the first segment to start being paved and to be completed in the Interstate Highway System. It extends from the Western border to the Eastern border covering and passing through several of the state's principal cities in the process.-Route...
in western Topeka and heads southeast, running concurrent
Concurrency (road)
A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
with U.S. Route 75 (US 75). At the I-470 junction with I-335, the freeway becomes part of the Kansas Turnpike
Kansas Turnpike
The Kansas Turnpike is a freeway-standard toll road that lies entirely within the U.S. state of Kansas. It runs in a general southwest-northeast direction from the Oklahoma border, and passes through several major Kansas cities, including Wichita, Topeka, Lawrence and Kansas City...
until I-470 reaches its eastern terminus with I-70. The Kansas Turnpike was opened in the 1950s, comprising the eastern portion of the route. Several years later, in the early 1960s, the western section of I-470 was opened to traffic.
Route description
Interstate 470 begins in the northwestern part of Topeka at an interchange with I-70Interstate 70 in Kansas
In the U.S. state of Kansas, Interstate 70 contains the first segment to start being paved and to be completed in the Interstate Highway System. It extends from the Western border to the Eastern border covering and passing through several of the state's principal cities in the process.-Route...
, US-40, and K-4
K-4 (Kansas highway)
K-4 is the longest designated state highway in Kansas traversing from north of Scott City at US-83 to US-59 near Nortonville in northeast Kansas. A segment of the highway in McPherson County overlaps Interstate 135, and a section in Topeka runs concurrent with Interstate 70.-Western Kansas:K-4...
. US-75 approaches the interchange from the east and joins
Concurrency (road)
A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
I-470. The two routes head southeastward along the western edge of the city. Along this stretch of the interstate, there are three interchanges; exits 1B, 2, and 3. Because of both the southeast-to-northwest alignment of the road and the proximity of two cross-streets, exits 1B and 3 are each made up of two half-diamond interchanges. At exit 1B, traffic leaving eastbound I-470 is deposited onto Huntoon Street. Vehicles merging onto eastbound I-470 must access the entrance ramp from Wanamaker Road. The intersection of Huntoon and Wanamaker is adjacent to the freeway. Exit 3 is constructed similarly to exit 1B, while exit 2 is a standard diamond interchange.
Through southern Topeka, I-470 / US-75 curve to the south-southeast where they intersect Gage Boulevard. Further southeast, US-75 splits away from I-470 at a complex interchange with Burlingame Road. Just east of the US-75 interchange, there are two trumpet interchanges in quick succession. The first provides access to Topeka Boulevard, and the second connects to the Kansas Turnpike
Kansas Turnpike
The Kansas Turnpike is a freeway-standard toll road that lies entirely within the U.S. state of Kansas. It runs in a general southwest-northeast direction from the Oklahoma border, and passes through several major Kansas cities, including Wichita, Topeka, Lawrence and Kansas City...
. It also marks the northern end of I-335. I-470 merges onto the Kansas Turnpike and the two routes head northeast towards I-70. The tollway continues northeastward through southeastern Topeka, passing near to Lake Shawnee and eventually reaching I-470's terminus at I-70
Interstate 70 in Kansas
In the U.S. state of Kansas, Interstate 70 contains the first segment to start being paved and to be completed in the Interstate Highway System. It extends from the Western border to the Eastern border covering and passing through several of the state's principal cities in the process.-Route...
.
The freeway is maintained by the Kansas Department of Transportation
Kansas Department of Transportation
The Kansas Department of Transportation is a state government organization in charge of maintaining public roadways of the U.S. state of Kansas.-Organization:*Secretary of Transportation...
(KDOT), who is responsible for maintaining and constructing highways in Kansas. As part of this role, KDOT surveys traffic on their highways in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2007, KDOT calculated that as few as 10,370 vehicles used I-470 daily along the Kansas Turnpike near the I-70 interchange and as many as 43,000 vehicles used I-470 daily west of the Gage Boulevard interchange. As part of the Interstate Highway System
Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, , is a network of limited-access roads including freeways, highways, and expressways forming part of the National Highway System of the United States of America...
, the entire route is listed on the National Highway System
National Highway System
The National Highway System is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities.Individual states...
, a system of roads that are important to the nation's economy, defense, and mobility.
History
The section of I-470 that now runs along the Kansas Turnpike was opened in 1956, and was the first part of I-470 to be built. After the founding of the Interstate Highway SystemInterstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, , is a network of limited-access roads including freeways, highways, and expressways forming part of the National Highway System of the United States of America...
that same year, several Interstate freeways were planned through Topeka, including I-70, I-335, and I-470. Construction began on I-470 after I-70's completion through Topeka. The segment of the I-470 freeway from the I-70 interchange to the Kansas Turnpike, most of which is concurrent with US 75 was still under construction in 1960. The next year, in 1961, the unfinished section of I-470 was opened to traffic. Since completion of the freeway, the route has not been changed. It retains its original routing.
Exit list
The entire route is in TopekaTopeka, Kansas
Topeka |Kansa]]: Tó Pee Kuh) is the capital city of the U.S. state of Kansas and the county seat of Shawnee County. It is situated along the Kansas River in the central part of Shawnee County, located in northeast Kansas, in the Central United States. As of the 2010 census, the city population was...
, Shawnee County
Shawnee County, Kansas
Shawnee County is a county located in northeast Kansas, in the central United States of America. Its most populous city, Topeka, is the state capital and county seat. The county's population was 177,934 for the 2010 census...
.
{| class=wikitable
!Mile
!Exit
!Destinations
!Notes
|-
|0.00
|1A
|
|Westbound exit and eastbound entrance, exit 1A is for KC bound
|-
|1.05
|1B
|Huntoon Street, Wanamaker Road
|
|-
|2.22
|2
|21st Street
|
|-
|3.35
|3
|29th Street, Fairlawn Road
|
|-
|4.30
|4
|Gage Boulevard
|
|-
|5.74
|5
|
|East end of US-75 overlap
|-
|6.6
|6
|Topeka Boulevard
|Last free exit eastbound; former US-75
|-
|colspan=4 align=center|West end of toll road
Toll road
A toll road is a privately or publicly built road for which a driver pays a toll for use. Structures for which tolls are charged include toll bridges and toll tunnels. Non-toll roads are financed using other sources of revenue, most typically fuel tax or general tax funds...
|-
|6.69
|
|
|West end of KTA overlap; left exit westbound
|-
|-
|13.72
|
|
|Eastbound exit and westbound entrance