Kennedy Expressway

An eastbound view of the Kennedy Expressway heading toward downtown Chicago

The Kennedy was originally constructed along the route of Avondale Avenue, an existing diagonal street, and the northwest railroad corridor, in the late 1950s and completed on November 5, 1960. Originally named the Northwest Expressway for its general direction of travel, the Chicago City Council voted unanimously on November 29, 1963—one week after the assassination of President Kennedy—to rename the highway the John F. Kennedy Expressway.[2] Until 1978, the Kennedy Expressway was marked as I-94 and Illinois Route 194 (IL 194), I-90 and I-190 replaced IL 194 and thus the Eisenhower Expressway was renamed from I-90 to I-290.

The express portion of the freeway was last reconstructed from 1992 through 1994,[3] when the existing express lanes, which previously were reversed by hand, were modernized. In addition, all aspects of the express lanes system were computerized, so that the process could be controlled at both ends from a central location. At least once a day, however, IDOT crews still examine the express lanes for debris while the lanes are closed.

Southeastward view of the Kennedy Expressway from the Montrose Blue Line Station, with the reversible express lanes to the right of the tracks

In 2005, the Washington Street bridge over the expressway was reconstructed, and the entrance ramps to both directions of the Kennedy were partially removed. The same was done in 2006 for the Monroe Street bridge. This left a disconnected portion of each ramp remaining on the expressway, to be removed and the existing "suicide ramps" lengths extended when funding became available. The American Recovery and Reinvestment Act of 2009 provided the necessary funding for the construction between Hubbard Street and the Circle Interchange, commencing in summer 2009. The westbound (facing north) ramps at Adams Street and Madison Street, along with the eastbound (facing south) ramps at Randolph Street and Madison Street, were lengthened by removing what remained of abandoned ramps and lengthening the entrance ramps significantly.[4] The only remaining short, limited-sight, left-side suicide ramp entrance is from Lake Street to the eastbound expressway (heading south). As part of the project, eastbound (heading south) traffic patterns were adjusted. The two right-most lanes were made "exit only" for Chicago Loop, Ida B. Wells Drive, and Eisenhower Expressway exits, the Adams Street and Jackson Boulevard exits were combined, certain center median walls reconstructed, lanes restriped to remove the merging of the leftmost lanes, and appropriate signage changes. For example, the changes increased the taper for the Randolph Street entrance headed eastbound from 160 to 583 feet (49 to 178 m),[5] an increase of over 3.6 time. In the westbound direction (headed north), the exit ramp to Monroe Street was permanently removed.

In 2015, the American Highway Users Alliance named the 12 miles (19 km) of the Kennedy between the Circle Interchange and Edens junction the worst traffic bottleneck in the country.[6]

The Blue Line operates in the median of the Kennedy Expressway for about 10 miles (16 km) from O'Hare International Airport to just south of Addison Street. The first section, an extension from Logan Square to Jefferson Park, opened in 1970. The second section opened between Jefferson Park and River Road (now Rosemont) in February 1983. The third section between River Road and O'Hare was opened in September 1984.[7]

Sign over the Kennedy Expressway, at the north entrance to Hubbard's Cave, encouraging commuters to use Metra trains, such as the one seen here passing over the highway, to avoid the common congestion

The second distinct features of the Kennedy Expressway are its reversible express lanes where I-94 merges into I-90. The reversible lanes lie in the median of the highway from the Kennedy Expressway/Edens Expressway junction until just north of the Loop (at Ohio Street), a distance of about eight miles (13 km). These reversible lanes, situated between the inbound lanes and the Blue Line tracks, allow two lanes of traffic to flow towards or away from the city, depending on the time of the day. The lanes are controlled by computers and verified by humans at a separate control center. Steel mesh barriers and breakaway gates prevent traffic from entering oncoming lanes. On January 25, 2014, a drunk driver broke through the safety gates and drove in the express lanes in the wrong direction, but was stopped by a snow plow; no injuries were reported.[8] This was the first wrong-way accident involving the express lanes.

A third distinct feature is Hubbard's Cave, also called the Hubbard Street Tunnel, which passes under several streets and the Metra's Union Pacific West and Milwaukee District West lines. It is named for Hubbard Street, one of the streets it passes underneath. Hubbard's Cave is a landmark frequently heard in traffic reports on radio and TV.

Magikist Lips sign formerly located on the Kennedy Expressway at Montrose Avenue in Chicago, torn down in 2004

The final distinct features are the nine exits in two miles (3.2 km) between mile markers 50 and 51, and the southbound exit to I-290 and Ida B. Wells Drive is marked as exits 51H and 51I. While the density of interchanges is quite dangerous, the hazard is partially offset by the fact that exits are 500 feet (150 m) apart on the right hand side, while entrances to the highway were 500 feet (150 m) apart, but on the left side. Known as the "suicide ramps", the entrance ramps on the left had little to no acceleration zone, and traffic on the ramps could not see mainline traffic until the last 500 feet (150 m) of the ramp. The 2009–10 reconstruction between Hubbard Street and the Circle Interchange improved safety by increasing the lengths of most entrance ramps and reduced bottlenecks by better utilizing the existing space.

The Kennedy Expressway was the location of a large Magikist lips flashing sign which was a Chicago pop culture icon for many years. Located at the southeast corner where Montrose Avenue abutted the expressway, the sign was torn down in 2004.

The entire route is in Cook County.

Location	mi[1]	km	Exit	Destinations	Notes
Chicago	0.00	0.00	—	O'Hare International Airport	Western terminus of I-190
	0.99	1.59	—	Bessie Coleman Drive – Terminal 5, Rental Car Return
	1.27	2.04	2	US 12 / US 45 (Mannheim Road)	Signed as exits 2A (north) and 2B (south); eastbound exit 2B shares a ramp with Bessie Coleman Drive
Rosemont	1.79	2.88	1D	I-294 south (Tri-State Tollway)
	1.81	2.91	1C	I-294 north (Tri-State Tollway) to I-90 west (Jane Addams Memorial Tollway) – Milwaukee, Rockford	Eastbound exit and westbound entrance
	2.24	3.60	1	River Road	Signed as exits 1A (north) and 1B (south) eastbound
Chicago	3.07 78.70	4.94 126.66	78	I-90 west (Jane Addams Memorial Tollway) to I-294 north (Tri-State Tollway) – Rockford, Milwaukee	Eastern terminus of I-190; westbound exit and eastbound entrance
	79.60	128.10	79	IL 171 (Cumberland Avenue)	Signed as exits 79A (south) and 79B (north)
	80.30	129.23	80	Canfield Road	Westbound exit and eastbound entrance
	81.20	130.68	81A	IL 43 (Harlem Avenue)
	81.20	130.68	81B	Sayre Avenue (7000 West)	Westbound exit and eastbound entrance
	82.20	132.29	82A	Nagle Avenue (6432 West)	No westbound exit
	82.40	132.61	82B	Bryn Mawr Avenue (5600 North)	Westbound exit only
	82.80	133.25	82C	Austin Avenue (6000 West)	Eastbound exit only
	83.30	134.06	83A	Foster Avenue (5200 North)	No eastbound exit
	83.50	134.38	83B	Central Avenue (5600 West)	Westbound exit and eastbound entrance
	84.20	135.51	84	Lawrence Avenue (4800 North)	To I-94 west (Edens Expressway)
	84.80 43.32	136.47 69.72	43B	I-94 west (Edens Expressway) – Milwaukee	"The Junction"; western terminus of concurrency with I-94; westbound exit and eastbound entrance
	43.60	70.17	43C	Montrose Avenue (4400 North)	Westbound exit and eastbound entrance
	43.90	70.65	43D	Kostner Avenue (4400 West)	Westbound exit only
	44.30	71.29	44A	IL 19 (Irving Park Road (4000 North)) / Keeler Avenue	No westbound exit
	44.50	71.62	44B	IL 19 (Irving Park Road (4000 North)) / Pulaski Road (4000 West)	Westbound exit and eastbound entrance
	45.10	72.58	45A	Addison Street (3600 North)
	45.50	73.23	45B	Kimball Avenue (3400 West)
	45.80	73.71	45C	Belmont Avenue (3200 North)	Westbound exit and eastbound entrance
	46.10	74.19	—	Sacramento Avenue (3000 West)	Eastbound entrance only
	46.30	74.51	46A	California Avenue (2800 West)	Eastbound exit and westbound entrance
	46.50	74.83	46B	Diversey Avenue (2800 North)	Westbound exit only and eastbound entrance
	47.05– 47.50	75.72– 76.44	47A	Western Avenue (2400 West) / Fullerton Avenue (2400 North)	No eastbound access to Western Avenue
	47.60	76.60	47B	Damen Avenue (2000 West)	Westbound exit and eastbound entrance
	48.15	77.49	48A	Armitage Avenue (2000 North)
	48.70	78.38	48B	IL 64 (North Avenue) (1600 North)
	49.40	79.50	49A	Division Street (1200 North)
	49.70– 49.80	79.98– 80.15	49B	Augusta Boulevard / Milwaukee Avenue (1000 North)	Westbound exit and eastbound entrance
	50.10	80.63	50A	Ogden Avenue (1200 West)	Eastbound exit and westbound entrance
	50.40	81.11	50B	Ohio Street east (600 North)	Eastern terminus of express lanes
	51.00	82.08	51A	Lake Street (200 North)	Westbound exit and eastbound entrance
	51.10	82.24	51B	Randolph Street west (150 North)
	51.20	82.40	51C	Washington Boulevard east (100 North)	No entrance ramps
	51.30	82.56	51D	Madison Street (0 North/South)
	51.40	82.72	51E	Monroe Street (100 South)	Eastbound exit only
	51.50	82.88	51F	Adams Street west (200 South)	Eastbound exit only; shared ramp with exit 51G
	51.60	83.04	51G	Jackson Boulevard east (300 South)	Eastbound exit and westbound entrance; shared exit ramp with exit 51F
	51.80	83.36	51H	I-290 west (Eisenhower Expressway) / IL 110 (CKC) west – West Suburbs	Eastbound exit and westbound entrance
	51.80	83.36	51I	Ida B. Wells Drive east – Chicago Loop (500 South)	Eastbound exit and westbound entrance
	51.80	83.36	—	I-90 east / I-94 east (Dan Ryan Expressway) – Indiana	I-90 and I-94 continue east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access       Route transition

• List of memorials to John F. Kennedy

Wikimedia Commons has media related to Kennedy Expressway.

• John F. Kennedy Expressway (I-90 and I-94) at Steve Anderson's ChicagoRoads.com
• Historic, Current & Average Travel Times For The Kennedy Expressway