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Interstate 670 Kansas / Missouri

 

Routing

Interstate 670 in Missouri and Kansas is a short connector freeway that provides a more direct east-west route through downtown Kansas City for through Interstate 70 traffic.

History

In 1990, Interstate 670 in Kansas City was opened to traffic. This was the final route of the original Kansas Interstate Highway System to be completed. The viaduct that carries Kansas's section of Interstate 670 between Kansas City, Kansas, and Kansas City, Missouri, cost $75 million to build.1

Western Terminus - Interstate 70 - Kansas City, Kansas
Perspective from Interstate 670 west
After the Interstate 35 interchange, westbound Interstate 670 approaches Exit 1B, Wyoming Street, Genessee Avenue, and Kemper Arena. Photo taken by AARoads (10/17/04).
Continuing west, the right lanes of Interstate 670 connect to Exit 1B, Wyoming Street, Genessee Avenue, and Kemper Arena. Photo taken by AARoads (10/17/04).
Westbound Interstate 670 reaches Exit 1B, Wyoming Street, Genessee Avenue, and Kemper Arena. The next ramp is Exit 1A, Central Avenue. Interstate 670 now crosses a viaduct; by the time it reaches land on the other side of this valley, Interstate 670 will enter Kansas. Photo taken by AARoads (10/17/04).
This view of Interstate 670 is afforded as the freeway crosses over the Kansas River and prepares to enter the Sunflower State of Kansas. Photo taken by AARoads (10/17/04).
Interstate 670 leaves the Show-Me State of Missouri when it crosses into Kansas (Wyandotte County and the city of Kansas City, Kansas). Interstate 670 becomes known as the Jay B. Dillingham Memorial Highway. Photo taken by AARoads (10/17/04).
The only standalone exit from westbound Interstate 670 in Kansas is Exit 1A, Central Avenue. Use Central Avenue west to Interstate 70/U.S. 40 east and U.S. 69 north as well as the 7th Street Trafficway. Photo taken by AARoads (10/17/04).
Westbound Interstate 670 reaches Exit 1A, Central Avenue. The next interchange is with Interstate 70 (and U.S. 40-69). Photo taken by AARoads (10/17/04).
The final interchange along westbound Interstate 670 is the junction with Interstate 70, which serves as the western terminus. Photo taken by AARoads (10/17/04).
As Interstate 670 climbs onto a flyover ramp to carry the freeway over Interstate 70, this blue milepost shows that there is still another 0.8 mile until the end of Interstate 670. Photo taken by AARoads (10/17/04).
Westbound Interstate 670 prepares to merge onto westbound Interstate 70. Photo taken by AARoads (10/17/04).
The end of Interstate 670 is signed with an END shield. The next exits are Exit 421A, Railroad Yard; Exit 420B, 18th Street North; and Exit 420A, Junction U.S. 69 south/18th Street Expressway. Photo taken by AARoads (10/17/04).
END Interstate 670. Continue straight ahead to follow Interstate 70 west to Topeka and beyond. Photo taken by AARoads (10/17/04).
Perspective from Interstate 70 east
Centerline upcoming exits sign including the first mentioning of Interstate 670 on Interstate 70 eastbound. U.S. 69 is overlapped with Interstate 70 through this stretch. It departs via Exit 422A beyond the Interstate 70/670 split. Photo taken by Eric Stuve (11/30/02).
Interchange diagram sign indicating the impending split of Interstate 70 and 670, posted one-half mile west of the partition. The diagram indicates that three through lanes are allotted for Interstate 670 beyond Interstate 70, a persuasion tactic for through traffic to use Interstate 670 over Interstate 70. Photo taken by Eric Stuve (11/30/02).
Interstate 670 eastbound begins as Exit 421B of Interstate 70 east. There are no control cities for either highway, as both traverse downtown Kansas City, Missouri. Photo taken by Eric Stuve (11/30/02).
Reassurance signage at the gore between Interstate 670 and 70 eastbound. Note that Interstate 670 is three lanes over Interstate 70/U.S. 69's two. Photo taken by Eric Stuve (11/30/02).
Interstate 70 eastbound at Exit 422A/U.S. 69 north and U.S. 169 south. Where U.S. 69 departs Interstate 70, U.S. 169 arrives and overlaps eastward to downtown Kansas City. A similar sign to the Interstate 70 reassurance panel is posted for Interstate 670 to the left (out of view). Interstate 670 itself will cross Interstate 70 momentarily. Photo taken by Eric Stuve (11/30/02).
Interstate 70 eastbound at Exit 422C-Service Road. Interstate 670 is the highway overpass in the distance. Beyond this interchange Interstate 70 reduces to one eastbound lane until it encounters the Lewis & Clark Viaduct. Photo taken by Eric Stuve (11/30/02).
Perspective from Interstate 70 west
Interstate 70 leaves the Central Business Distribution Loop after passing the point where Interstate 35 turns south (Exit 2A). From here, the freeway will remain on an elevated viaduct as it approaches Kansas. Photo taken by AARoads (10/17/04).
Westbound Interstate 70 enters the state of Kansas, where it will promptly split at Exit 423C. U.S. 24/Washington Boulevard continues due west, while Interstate 70 and U.S. 40 will turn south to rejoin Interstate 670. Photo taken by AARoads (10/17/04).
Interstate 70/U.S. 40 and U.S. 24 split at this point, with Interstate 70 turning southwest to meet Interstate 670. Photo taken by AARoads (10/17/04).
Westbound Interstate 70/U.S. 40 reach Exit 422D, Central Avenue. The next two exits are Exit 422C, Service Road, and Exit 422B, Junction U.S. 169/Seventh Street Trafficway. Photo taken by AARoads (10/17/04).
At the Service Road offramp (Exit 422C), the bridges and viaduct carrying Interstate 670 cross over Interstate 70 so that Interstate 670 can merge directly onto Interstate 70 from the right. There are no ramps from westbound Interstate 70 to eastbound Interstate 670. Photo taken by AARoads (10/17/04).
Westbound Interstate 70 reaches Exit 422B, Junction U.S. 169/Seventh Street Trafficway. The ramps for Interstate 670 are visible to the right (north) of the freeway. Photo taken by AARoads (10/17/04).
The next exit on Interstate 70 west is Exits 420B-A, Junction U.S. 69/Eighteenth Street. To the right, Interstate 670 west merges into Interstate 70 west. Photo taken by AARoads (10/17/04).
Two-lane westbound Interstate 70 widens to four lanes after Interstate 670 merges into the freeway. Photo taken by AARoads (10/17/04).
Eastern Terminus - Interstate 70 - Kansas City, Missouri
Perspective from Interstate 670 east
Sign bridge for the end of Interstate 670. Exit 2N takes traffic onto Interstate 70/U.S. 40 westbound (which is orientated north-south north of Interstate 670) actually. Since Interstate 670 primarily is used to facilitate east-west traffic movements, Interstate 70 westbound is omitted on the Exit 2N signage in favor of Interstate 29 and 35 northbound. Interstate 70 meets the southern terminus of Interstate 29 in less than one mile. Photo taken by Ben Prusia (2001).
Eastbound Interstate 670 at Central Avenue, approaching Junction Interstate 70 and U.S. 40. Also note the Welcome to Missouri sign to the right of the overhead sign bridge. Photo taken by Eduardo Delgadillo (05/02).
Perspective from Interstate 70 west
Five miles east of Interstate 670, signs already advocate the use of Interstate 670 for through traffic interests. This guide sign is posted on the Exit 7B, Manchester Trafficway exit, just west of Interstate 435. Interstate 670 is signed as "Alternate Interstate 70." Photo taken by AARoads (10/19/04).
A second Interstate 670 sign is found at Exit 7A, 31st Street. Once again, Interstate 670 is signed as "Alternate Interstate 70." The interchange is five miles ahead. Photo taken by AARoads (10/19/04).
Two miles ahead, westbound Interstate 70 reaches Exit 4C, 23rd Street. The junction with Interstate 670 is two miles ahead. Interstate 670 is again touted as Alternate Interstate 70 on the Missouri side of Interstate 70. Photo taken by AARoads (10/19/04).
Now at Exit 4B for 18th Street, Interstate 70 sees yet another Interstate 670/Alternate Interstate 70 advisory guide sign. The Kansas State Capital is 67 miles west via Interstate 70 and 64 miles via Interstate 670 to Interstate 70. Photo taken by AARoads (10/19/04).
This mileage sign provides the distance to the next four exits. Use Exit 2L to Interstate 670 west and downtown Kansas City. Photo taken by AARoads (10/19/04).
Interstate 70 descends below street level as it passes by Exit 3C for Prospect Avenue. Exit 2L of Interstate 670 westbound is just one mile to the west. The guide sign also indicates that Interstate 35 southbound travelers to Wichita should take Interstate 670 west. Photo taken by AARoads (10/19/04).
Continuing west, the left lanes will eventually transition onto westbound Interstate 670. The right lanes will connect to northbound Interstate 29 and Interstate 35, while the middle lanes continue west on Interstate 70 and U.S. 24-40. Photo taken by AARoads (10/19/04).
Westbound Interstate 70 and U.S. 24-40 reach Exit 3A, To U.S. 71 South (via The Paseo). Several local access exits follow, including: Exit 2K, Harrison Street/Troost Avenue and Exit 2L, Interstate 670 west to 13th Street/McGee Street/Downtown. Photo taken by AARoads (10/19/04).
This mileage sign mentions the next three exits, including Exit 2L, Interstate 670; Exit 2K, Harrison Street/Troost Avenue; and Exit 2H, Junction U.S. 24 East and Missouri 9 North, Admiral Boulevard. Photo taken by AARoads (10/19/04).
The speed limit drops to 45 mph as Interstate 70 enters the downtown area. Interstate 670/Alternate Interstate 70 westbound depart from the left via Exit 2L as Interstate 70 prepares to turn northward to Interstates 29 and 35. There are several close exit and entrance ramps on the pending stretch of Interstate 70, all part of the "Alphabet Loop" exit numbering scheme. Photo taken by AARoads (10/19/04).
The second panel in the above photograph is an original sign. This photograph reveals what the sign displayed 20 years before. The easternmost segment of Interstate 670 has existed for quite some time. Before the link westward to Kansas City, Kansas, was complete, the segment was simply signed as "TO Interstate 35" as this button copy overhead displays. Photo taken by Michael Summa (1982).
Perspective from Interstate 70 west
Eastbound Interstate 70 approaches Exit 2L, Junction Interstate 670 west. The left two lanes transition onto Interstate 70 and U.S. 40 east to Columbia and St. Louis, while the middle two lanes continue south onto U.S. 71 (Exit 2M). Photo taken by Jeff Morrison (05/14/07).
Perspective from Interstate 670 west
Now on Interstate 670 westbound, this is the first sign panel, which indicates the first two exits: Exit 2P, 13th Street/Downtown and Exit 2Q, McGee Street. Photo taken by AARoads (10/19/04).
Interstate 670 is on the left side of this photo, while Interstate 70 is visible to the right. The signs for Exit 2K, Harrison Street/Troost Avenue and Exit 2H, Junction U.S. 24 East and Missouri 9 North, Admiral Boulevard are for Interstate 70 only, while the signs for Exit 2P, 13th Street/Downtown and Exit 2Q, McGee Street are for Interstate 670 west. Photo taken by AARoads (10/19/04).
Westbound Interstate 670 reaches Exit 2P, 13th Street/Downtown. The next ramp is for Exit 2Q, McGee Street. Even the first pull through sign shows "Alternate Interstate 70" as well as Interstate 670. The freeway begins as only two through lanes. Photo taken by AARoads (10/19/04).
A new lane merges onto Interstate 670 from the left, as the freeway passes under the U.S. 71 (Bruce R. Watkins Drive) Interchange and Charlotte Street. Photo taken by AARoads (10/19/04).
The right lane becomes exit only for Exit 2Q, McGee Street and Truman Road. Photo taken by AARoads (10/19/04).
Westbound Interstate 670 reaches Exit 2Q, McGee Street and Truman Road; the next exit is Exit 2S, Broadway Boulevard. Photo taken by AARoads (10/19/04).
An elevated intersection spans Interstate 670 at Exit 2Q. Photo taken by AARoads (10/19/04).
The next exit is Exit 2S, Broadway Boulevard, followed by Exit 2T, Junction Interstate 35. Use the left two lanes to continue west on Interstate 670. Note that certain overpasses are lower than the Interstate standard 16 feet. Photo taken by AARoads (10/19/04).
Westbound Interstate 670 reaches Exit 2S, Broadway Boulevard. The next exit is Exit 2T, Junction Interstate 35 and 12th Street. Photo taken by AARoads (10/19/04).
Passing under the Kansas City Convention Center, the two right lanes connect to Exit 2T, Junction Interstate 35 South and North. Use the left two lanes to continue east on Interstate 670 (Alternate Interstate 70). Photo taken by AARoads (10/19/04).
Immediately after passing under the convention center, the interchange between Interstate 670 and Interstate 35 comes into view. This is a four-level stack interchange, with Interstate 670 on the bottom level and Interstate 35 on the top level. Photo taken by AARoads (10/19/04).
Mid-Point between Western and Eastern Terminus - Junction Interstate 35 - Kansas City, Missouri
Perspective from Interstate 35 North
The first appearance of Interstate 670 to be found on northbound Interstate 35 is just prior to the Southwest Boulevard/West Pennway/Kemper Arena interchange (Exit 1C). Photo taken by AARoads (10/17/04).
Northbound Interstate 35 reaches Exit 1C, Southwest Boulevard and Pennway to Kemper Arena. The next exit is Exit 2U, Junction Interstate 670 east/west and Broadway. Photo taken by AARoads (10/17/04).
Use the left two lanes to continue north on Interstate 35. The right three lanes all connect to Exit 2U: Junction Interstate 670 west to Kansas, Junction Interstate 670 east to St. Louis, and Broadway. Photo taken by AARoads (10/17/04).
Northbound Interstate 35 reaches Exit 2U, Junction Interstate 670 west/east and Broadway. For some reason, Interstate 670 east is signed as Interstate 70, perhaps because Interstate 670 is the most direct route for through traffic on Interstate 70 west. Photo taken by AARoads (10/17/04).

 
Mileage

State Kansas
Mileage 1.64
Cities Kansas City
Junctions Interstate 70
State Missouri
Mileage 1.17
Cities Kansas City
Junctions Interstate 35, Interstate 70
Source: October 31, 2002 Interstate Route Log and Finders List
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