Downtown freeway loop (Kansas City)
Encyclopedia
The downtown loop, also nicknamed the "Alphabet Loop", is a complex layout of highway
s in downtown Kansas City, Missouri
involving 23 exits, four Interstate Highways, four U.S. Highways and numerous city streets. Each exit in the highway loop is numbered 2 and suffixed with every letter of the alphabet except I, O and Z (which would look like 1, 0 and 2 on the exit signs), although some of the exits are currently under construction/renovation and closed to traffic. The entire circumference of the loop is just over four miles (6 km).
Alphabetically, the letter suffixes begin with A in the northwest corner of the loop and proceed forward in a clockwise direction around the loop. Eastbound on the north side of the loop (EB I-70/NB I-35), one encounters A through G; then H through M southbound on the east side (EB I-70/SB US 71); then N through U westbound on the south side (WB I-670); and finally V through Y northbound on the west side (NB I-35 alone).
Interstate 70 enters the southeast corner of the loop and moves north forming the east and north sides of the loop and exiting in the northwest corner. Exits on I-70 range from 2A to 2M.
Interstate 35 enters the loop at its northeast corner, joining I-70 on the north side and forming the west side of the loop before exiting in the southwest corner. Exits on I-35 range from 2F to 2A while it overlaps I-70, and 2Y to 2U after I-70 exits the loop.
Interstate 29 does not enter the loop. It begins at the northeast corner and continues north, concurrent with I-35. These two leave the loop via the Christopher S. Bond Bridge
and split several miles north.
Interstate 670
forms the south side of the loop. I-670
splits from I-70 in Kansas City, Kansas
, crosses over I-70 and enters the loop in the southwest corner, rejoining I-70 and ending in Kansas City, Missouri
in the southeast corner of the loop. I-670 is also signed as Alternate I-70.
U.S. Route 71 is a highway that enters the loop in the southeast corner and leaves the loop with I-29 and I-35 in the northeast corner.
U.S. Route 24 is a major city street which enters the loop in the northeast corner and follows I-35 and I-70 along the north side of the loop. US 24 is also known as Independence Ave/Blvd and provides a street-level connection to Independence, Missouri.
U.S. Route 40 overlaps I-70 throughout the northern and eastern sections of the loop.
U.S. Route 169 enters the loop in the northwest corner from the Broadway Bridge
across the Missouri River
, and joins I-70, continuing westward.
Route 9 also provides access to the loop, ending at I-70 after crossing the Heart of America Bridge
from North Kansas City
.
A March 2010 preliminary study of the Kansas City I-70 corridor made several innovative suggestions to relieve congestion in the downtown area. One proposal was to make the loop unidirectional, where the loop would essentially become a large roundabout
.
Highway
A highway is any public road. In American English, the term is common and almost always designates major roads. In British English, the term designates any road open to the public. Any interconnected set of highways can be variously referred to as a "highway system", a "highway network", or a...
s in downtown Kansas City, Missouri
Kansas City, Missouri
Kansas City, Missouri is the largest city in the U.S. state of Missouri and is the anchor city of the Kansas City Metropolitan Area, the second largest metropolitan area in Missouri. It encompasses in parts of Jackson, Clay, Cass, and Platte counties...
involving 23 exits, four Interstate Highways, four U.S. Highways and numerous city streets. Each exit in the highway loop is numbered 2 and suffixed with every letter of the alphabet except I, O and Z (which would look like 1, 0 and 2 on the exit signs), although some of the exits are currently under construction/renovation and closed to traffic. The entire circumference of the loop is just over four miles (6 km).
Description
Interstate 70 enters the southeast corner of the loop and moves north forming the east and north sides of the loop and exiting in the northwest corner. Exits on I-70 range from 2A to 2M.
Interstate 35 enters the loop at its northeast corner, joining I-70 on the north side and forming the west side of the loop before exiting in the southwest corner. Exits on I-35 range from 2F to 2A while it overlaps I-70, and 2Y to 2U after I-70 exits the loop.
Interstate 29 does not enter the loop. It begins at the northeast corner and continues north, concurrent with I-35. These two leave the loop via the Christopher S. Bond Bridge
Christopher S. Bond Bridge (Kansas City)
The Christopher S. Bond Bridge in Kansas City, Missouri is a cable-stayed bridge across the Missouri River. The bridge opened to limited traffic on September 27, 2010 and all lanes opened on December 18, 2010...
and split several miles north.
Interstate 670
Interstate 670 (Kansas-Missouri)
Interstate 670 is a 2.81 mile connector highway between I-70 in Kansas City, Kansas and I-70 in Kansas City, Missouri. The highway provides a more direct route through downtown Kansas City than the older mainline I-70, and avoids the sharp turn of the latter at the west end of the Intercity...
forms the south side of the loop. I-670
Interstate 670 (Kansas-Missouri)
Interstate 670 is a 2.81 mile connector highway between I-70 in Kansas City, Kansas and I-70 in Kansas City, Missouri. The highway provides a more direct route through downtown Kansas City than the older mainline I-70, and avoids the sharp turn of the latter at the west end of the Intercity...
splits from I-70 in Kansas City, Kansas
Kansas City, Kansas
Kansas City is the third-largest city in the state of Kansas and is the county seat of Wyandotte County. It is a suburb of Kansas City, Missouri, and is the third largest city in the Kansas City Metropolitan Area. The city is part of a consolidated city-county government known as the "Unified...
, crosses over I-70 and enters the loop in the southwest corner, rejoining I-70 and ending in Kansas City, Missouri
Kansas City, Missouri
Kansas City, Missouri is the largest city in the U.S. state of Missouri and is the anchor city of the Kansas City Metropolitan Area, the second largest metropolitan area in Missouri. It encompasses in parts of Jackson, Clay, Cass, and Platte counties...
in the southeast corner of the loop. I-670 is also signed as Alternate I-70.
U.S. Route 71 is a highway that enters the loop in the southeast corner and leaves the loop with I-29 and I-35 in the northeast corner.
U.S. Route 24 is a major city street which enters the loop in the northeast corner and follows I-35 and I-70 along the north side of the loop. US 24 is also known as Independence Ave/Blvd and provides a street-level connection to Independence, Missouri.
U.S. Route 40 overlaps I-70 throughout the northern and eastern sections of the loop.
U.S. Route 169 enters the loop in the northwest corner from the Broadway Bridge
Broadway Bridge (Kansas City)
The Broadway Bridge is a through arch bridge that spans the Missouri River in Kansas City, Missouri, in the United States. It first opened for traffic September 9, 1956 on U.S. Route 169. It was built at a cost of $12 million dollars...
across the Missouri River
Missouri River
The Missouri River flows through the central United States, and is a tributary of the Mississippi River. It is the longest river in North America and drains the third largest area, though only the thirteenth largest by discharge. The Missouri's watershed encompasses most of the American Great...
, and joins I-70, continuing westward.
Route 9 also provides access to the loop, ending at I-70 after crossing the Heart of America Bridge
Heart of America Bridge
The Heart of America Bridge is a vehicular girder bridge over the Missouri River, in Kansas City, Missouri. It carries Route 9. It was the vehicular replacement for the upper level of the ASB Bridge, and runs next to it a few hundred yards downstream...
from North Kansas City
North Kansas City, Missouri
North Kansas City is a city in Clay County, Missouri, United States and is an independent municipality that is a part of the Kansas City metropolitan area. The population was 4,714 as of the 2000 census but a large business/industrial base swells the daytime population by thousands more...
.
History
Before the west side of the loop was built, there was a scenic road called Kersey Coates Drive in that place. There were many affluent homes that were built along the road, and stairs that led down from Case Park immediately to the east. When the loop was completed, the multi-lane Interstate cut further into the bluff and these homes were razed. The stairs leading down from Case Park were cut off halfway and still remain today, between exits 2W and 2X.A March 2010 preliminary study of the Kansas City I-70 corridor made several innovative suggestions to relieve congestion in the downtown area. One proposal was to make the loop unidirectional, where the loop would essentially become a large roundabout
Roundabout
A roundabout is the name for a road junction in which traffic moves in one direction around a central island. The word dates from the early 20th century. Roundabouts are common in many countries around the world...
.
Exit list
| Exit | Destinations | Notes |
|---|---|---|
| 2A | Counterclockwise exit | |
| 2B | Broadway | Clockwise exit |
| 2C | Counterclockwise exit | |
| 2D | Deleware Street | |
| 2E | Clockwise exit | |
| 2F | Oak Street | Counterclockwise exit |
| 2G | ||
| 2H | ||
| 2J | 11th Street | Clockwise exit |
| 2K | Harrison Ave | Counterclockwise exit |
| 2L | Clockwise exit | |
| 2M | ||
| 2N | Counterclockwise exit | |
| 2P | 13th Street | Clockwise exit |
| 2Q | Truman Road | Clockwise exit |
| 2R | Central Avenue | Counterclockwise exit |
| 2S | Broadway | Counterclockwise exit |
| 2T | Clockwise exit | |
| 2U | Counterclockwise exit | |
| 2W | 12th Street | |
| 2V | 11th Street | Counterclockwise exit |
| 2X | Clockwise exit | |
| 2Y | Clockwise exit |