Longest Bridges in Illinois

The longest bridge in Illinois spans 7121.1 feet. The table below ranks the state's bridges by total structure length — from major river crossings and causeway spans to long highway overpasses.

How this ranking works

Length comes from the NBI structure length field and is shown in feet. It is best read as a scale and maintenance-complexity signal, not by itself as a safety signal.

Bridge	County	Length	Condition	Year Built
I-39 US 51 over Il Rv/il 351/ Bo Rr	LaSalle	7121.1 ft	Fair	1984
I355 NB & SB over Desplaines River Val	Cook	6592.8 ft	Fair	2007
Fai 70a over Mississippi River	St. Clair	6461.9 ft	Good	2014
US 51 over Ohio River	Alexander	5865.2 ft	Fair	1937
US 20 over Miss River HWY Rr	Jo Daviess	5759.8 ft	Fair	1943
Salisbury St/fau91 over Miss River	Madison	5732.9 ft	Fair	1910
Interstate 24 over Ohio River	Massac	5621.4 ft	Fair	1973
Fai 270 EB over Mississippi River	Madison	5456.4 ft	Good	2024
Fai 270 over Mississippi River	Madison	5411.1 ft	Fair	1966
US 45 over Ohio River	Massac	5387.1 ft	Fair	1929
US 60 & 62 over Mississippi R	Alexander	5181.4 ft	Poor	1929
I-294 over Cn/css Can./despl Rv/sf	Cook	4852.0 ft	Good	2021
I-294 over Cn Rr Css Canal Desp.	Cook	4827.4 ft	Good	2022
WB US 150 over Ill River T&p Rr	Tazewell	4745.1 ft	Poor	1982
EB US 150 over Illinois River & T&p Rr	Tazewell	4692.3 ft	Poor	1948
US 67 over Mississippi Rvr Nsrr Upr	Madison	4620.1 ft	Fair	1994
US 6 (159th) over Along US 6 EB Lanes	Cook	4575.1 ft	Fair	1962
I-55/64 WB Cd "a" over Uprr O2 B C H 4 Esl Sts	St. Clair	4530.8 ft	Fair	1968
US 24(wb)/ Broadwa over Miss. R/streets/bnrr	Adams	4508.2 ft	Fair	1986
I-72 / US 36 over Miss R/bnrr/nsrr/st	Pike	4490.2 ft	Poor	1999
I-55/64 EB Cd "d" over Uprr O2 8th9th10th Piggo	St. Clair	4443.9 ft	Fair	1969
Fai 280 over Mississippi River	Rock Island	4192.9 ft	Fair	1970
US 30 over Mississippi River	Whiteside	4165.0 ft	Fair	1956
Wacker Drive over Lower Lvl Wacker DR	Cook	4095.1 ft	Good	1926
Fai 57 over Mississippi River	Alexander	4090.6 ft	Fair	1978
Fap-799 Mlk Drive over Miss.river Trra Front 8t	St. Clair	4010.2 ft	Fair	1950
Fau 9187a & Met Li over Miss Riv/rr/mss6000	St. Clair	4006.9 ft	Fair	1874
Fai 255 EB over Mississippi River	Monroe	4003.0 ft	Fair	1986
Fai 255wb over Mississippi River	Monroe	4003.0 ft	Fair	1984
Fap 312-il 146 over Mississippi River	Alexander	3970.1 ft	Fair	2003
Damen AVE & 4 Ramp over I- 55 Stevenson	Cook	3865.2 ft	Fair	1963
US 67 over Ill 92 Rr & Miss R	Rock Island	3854.3 ft	Fair	1940
Il 8/ Il 116 over Illinois Riv Bnsf T&p	Tazewell	3700.1 ft	Poor	1932
US 67 / Il 100 over Illinois River	Cass	3686.0 ft	Poor	1955
US 24(eb)/ Maine S over Miss. R./front St/bn	Adams	3511.5 ft	Fair	1930
Fai 80 over Miss R Ill 84 & Rr	Rock Island	3487.9 ft	Fair	1967
WB I-474 over Illinois River T&p Rr	Tazewell	3477.0 ft	Fair	1975
EB I-474 over Illinois River T&p Rr	Tazewell	3473.4 ft	Fair	1975
Central Ave. over San.drain.&ship Can.	Cook	3430.1 ft	Fair	1970
I 74 EB over Mississippi River	Rock Island	3396.0 ft	Good	2021
I 74 WB over Mississippi River	Rock Island	3386.2 ft	Good	2020
Lemont RD over Des P Riv Canal Rr	Cook	3352.0 ft	Poor	1983
Fap 685 Ill 9 over Mississippi River	Hancock	3347.1 ft	Poor	1927
US 136 over Miss R/1st/keokuk Jct Rr	Hancock	3345.8 ft	Fair	1985
I-72 (eb) over Illinois River	Pike	3329.4 ft	Fair	1988
I-74 over Ill Riv T&p Rr	Tazewell	3215.6 ft	Fair	1958
I-72 (wb) over Illinois River	Pike	3203.4 ft	Fair	1988
Ill 13 over Ohio River	Gallatin	3200.1 ft	Fair	1955
Il 100/106 over Illinois River	Scott	3178.8 ft	Poor	1929
Il 7 over S&s Canal/des Plns R	Will	3172.9 ft	Poor	1971
Ch 3(fas 642) over Lake Shelbyville	Shelby	3171.6 ft	Fair	1967
I-294 SB over Us-45 Rr Yds.& F.ave	Cook	3141.1 ft	Fair	1993
I-294 NB over Us-45 Rr Yds.& F.ave	Cook	3112.9 ft	Fair	1958
I-180 over Illinois River	Bureau	3083.3 ft	Fair	1969
I-55/64EB Mainlne" over Uprr Il 3 Ramp Uprr Uprr	St. Clair	3080.1 ft	Fair	1995
Ill 92 Fap 599 over Mississippi River	Rock Island	3018.0 ft	Fair	1972
I 57 NB over Ill3/us 51-cs 6010a-cnic	Alexander	3016.7 ft	Fair	1978
Ill 136 over Mississippi Rv & Rr	Whiteside	3012.1 ft	Fair	1974
I-55/64WB Mainlne" over Uprr Il 3 Ramp Uprr Uprr	St. Clair	2992.1 ft	Good	1995
I 57 SB over Ill3/us 51-cs 6010a-cnic	Alexander	2973.1 ft	Fair	1978
Fap 827(ill-15) over Wabash River	Wabash	2877.6 ft	Fair	2010
Ill 150 over Miss Riv/fau 9416	Randolph	2827.1 ft	Poor	1942
US 12 20 45 NB over Santa Fe DR Et Al	Cook	2745.1 ft	Fair	1975
US 12 20 45 SB over Santa Fe DR Et Al	Cook	2736.9 ft	Fair	1980
I 64 EB over Tr-422 & Wabash Rv	White	2705.1 ft	Poor	1967
I- 90 94 SB To I55 over Chi Riv &canal P-ave	Cook	2700.1 ft	Fair	1962
I- 55 SB To I-355 over I-355 I-55 Ramps	Will	2658.1 ft	Fair	2007
Ill 9 over Illinois River T&p Rr	Tazewell	2633.9 ft	Fair	1982
I- 57 SB Rmp T 294 over I-294 & I-57	Cook	2530.5 ft	Good	2021
I- 55 EB Elevated over Ashland AVE Viaduct	Cook	2510.2 ft	Fair	1963
Burnham AVE Viad over State ST & Rrs & Riv	Cook	2463.9 ft	Fair	1976
Il 64/ US 52 over Miss Riv & Bnrr	Carroll	2462.9 ft	Good	2018
I- 55 WB Elevated over Ashland AVE Viaduct	Cook	2456.7 ft	Fair	1963
Fap-877 (ill-141) over Wabash River	White	2399.6 ft	Fair	1956
Fai 255 over P.dupont&blue Waters	St. Clair	2369.1 ft	Fair	1981
Or-5 Chainofrocksr over Chain Of Rocks Cn & 2 Lr	Madison	2368.1 ft	Poor	1949
Il 40 over Il Riv Wash.st T&p Rr	Tazewell	2365.2 ft	Fair	1993
I- 80 EB over Ds Plns Riv & Us-6	Will	2362.5 ft	Poor	1965
I- 80 294 EB To NB over I- 80 94 & Il 394	Cook	2354.0 ft	Fair	2006
WB Cd To Tudorav " over G 6th B A C H 8th 9th	St. Clair	2326.1 ft	Fair	1969
Fap 320(il 121) over Ns Rr	Macon	2320.2 ft	Fair	1991
I- 80 WB over Ds Plns Riv & Us-6	Will	2299.9 ft	Poor	1965
Il 251 over Il Rv/water St/rr	LaSalle	2291.7 ft	Fair	1958
Fap 321 (us 54) over Miss Rvr/bnsf Rr	Pike	2287.7 ft	Good	2019
EB I-70 Flyover Ra over I-55 64 Ramps Kcsrr Csx	St. Clair	2286.4 ft	Good	2014
US 34 over Miss Riv & Cri&p Rr	Henderson	2270.0 ft	Fair	1994
I-255 NB over Csxrr Csxrr Black Lane	St. Clair	2213.9 ft	Good	1985
Psb I-55 64;us 40 over Mississippi River	St. Clair	2165.0 ft	Fair	1963
Mlk Ramp 1 EB over Il 3 Trra Uprr Moav 55-6	St. Clair	2158.1 ft	Good	2000
Il-16 & 100 over Illinois River & Tr-423	Greene	2150.3 ft	Poor	1930
I- 55 WB Stevenson over Western AVE Viaduct	Cook	2134.8 ft	Fair	1963
I- 55 EB Stevenson over Western AVE Viaduct	Cook	2134.8 ft	Fair	1963
Il 104 over Illinois River	Pike	2127.6 ft	Fair	2018
I-290 WB 2 Il 390w over I-290 & Il 390 Eoh	DuPage	2102.7 ft	Good	2015
I- 90 94 Elev Exp over Stewart AVE To 28 Pl	Cook	2040.7 ft	Fair	1962
Fau 6838-ch 10 over Bnsf Rr & Gravel RD	Knox	2028.5 ft	Poor	1985
I-355 SB To I-88 W over I-355 Finley & Ramps	DuPage	2021.0 ft	Fair	1989
I-270 EB & WB over Chain Of Rocks Canal	Madison	1980.6 ft	Good	2014
I-255 SB over Black Lane Csxrr Csxrr	St. Clair	1980.0 ft	Good	1985
I- 90 94 NB 2 I290 over I- 90 94	Cook	1978.0 ft	Good	2015
I-355 SB To I-88 E over I-355 Finley & I-88	DuPage	1963.9 ft	Fair	1989
I- 90 94 Ryan Elev over S Br Chgo Riv To Can	Cook	1961.6 ft	Fair	1962
I 74 NB over Il 92eb&wb(1-7th Av)	Rock Island	1936.4 ft	Fair	2019
I 74 SB over Il 92eb&wb(1-7th Av)	Rock Island	1932.1 ft	Fair	2015
I- 57nb Rmp To 294 over Ramp C & I-294	Cook	1930.4 ft	Good	2014
I-290 WB To I90 94 over I- 90 94	Cook	1925.9 ft	Good	2019
I-355SB Ramp over I55 NB	Will	1890.4 ft	Fair	2007
WB 64 Ramp To WB 7 over I-55/70 Ramps Csxrr Kcsr	St. Clair	1867.8 ft	Good	2014
I- 94 WB To Il 394 over I- 80 94	Cook	1821.9 ft	Good	2006
Il 78 over Sangamon River	Cass	1819.9 ft	Good	2011
Il 89 (fap 698) over Illinois River	Bureau	1776.6 ft	Fair	2018
Ill 351/fap619 over Il River	LaSalle	1774.0 ft	Fair	2003
I 57 SB over Tr 163b Golden Lilly	Alexander	1770.0 ft	Fair	1968
I-294 80 EB over Markham Yd Ic Rr	Cook	1767.1 ft	Fair	1958
I-294 80 WB over Markham Yd Ic Rr	Cook	1767.1 ft	Fair	1958
US 50 EB over Wabash Rv & Il RT 33	Lawrence	1746.1 ft	Fair	1960
US 50 WB over Wabash Riv/ill SR 33	Lawrence	1743.1 ft	Fair	1960
Il 47 Fap 326 over Il Riv.& I & M Canal	Grundy	1730.0 ft	Fair	2003
US 136 over Illinois River	Fulton	1726.0 ft	Poor	1936
Ill 18 over Ill River Cromwell DR	Marshall	1719.2 ft	Poor	1934
I- 90 94 Ryan Elev over 18th To 22nd Sts	Cook	1713.9 ft	Fair	1962
Fai-57 NB over Tr-163b	Alexander	1708.0 ft	Fair	1968
Il 170 Fap 786 over Il River & River RD	LaSalle	1703.7 ft	Fair	2009
I-294 NB To I-90 W over I-294/I-90/Willow Creek	Cook	1685.0 ft	Fair	1958
Milan Beltway over Rock River	Rock Island	1682.1 ft	Fair	2006
Randolph Street over Var City Sts & Rr	Cook	1674.9 ft	Fair	1937
I-294 SB To I-90 E over I-294/I-90/Willow Creek	Cook	1674.9 ft	Fair	1958
Fas 268 A over Ill Riv & Or 11	LaSalle	1667.3 ft	Good	1999
I- 57 SB over Little Cal Riv Broad	Cook	1651.9 ft	Poor	1967
I- 57 NB over Little Cal Riv Broad	Cook	1651.9 ft	Poor	1967
Briggs Street over Hickory CR &metra Rr	Will	1639.1 ft	Fair	1984
I- 55 EB Rmp Ryan over Dry Land	Cook	1625.3 ft	Fair	1964
I-55/70;/64 over Csxrr Nsrr Trrarr	St. Clair	1615.5 ft	Poor	1959
Ill 17 over Ill River	Marshall	1573.2 ft	Fair	1939
Canal ST over Land	Cook	1569.9 ft	Poor	1926
Kedzie AVE over Rr - Csxt & Wireton	Cook	1560.4 ft	Poor	1972
Kedzie AVE over N.e.rr Corp.	Cook	1560.0 ft	Fair	1989
Il3nb To 55/64wb " over Uprr A B C Il 3 SB Ramp	St. Clair	1559.1 ft	Fair	1969
Fau 4000 Eldamain over Fox River	Kendall	1557.1 ft	Good	2023
I- 90 94 Jfk over Rr - Up &ashland AVE	Cook	1547.2 ft	Fair	1959
Il 390 EB Eoh over Rr - Metra Wetlands	Cook	1538.4 ft	Fair	1993
Ft Armstrng Av over Us67 Missrvr L&d15 Cprr	Rock Island	1530.8 ft	Fair	1896
Willow Springs RD over S&s&i&mcanals Dpl Rv	Cook	1529.9 ft	Fair	1976
Laramie AVE over Ogden AVE & Rr Yard	Cook	1515.1 ft	Fair	1956
Wacker Drive over Lower Wacker Drive	Cook	1497.7 ft	Good	2012
I- 55 EB To NB Frk over I- 55 Stevenson	Cook	1494.4 ft	Fair	1964
Fas-800 over Little Wabash River	Edwards	1483.6 ft	Fair	1940
Il 3 NB To EB Cd " over I-55/64 EB Cd "d" & Uprr	St. Clair	1475.1 ft	Fair	1972
Lake Shore DR NB over Randolph St.& Land	Cook	1458.3 ft	Fair	1986
I74 Rp 1.05(h-3) over I74 Rmps H-1 4 Divr Cha	Tazewell	1454.7 ft	Fair	2004
Stony NB To 100th over Stony Island AVE	Cook	1453.4 ft	Fair	1972
US 41 NB To I-55 W over US 41 Lsd	Cook	1443.9 ft	Good	2015
Tr 257 over Wabash River	Lawrence	1440.9 ft	Poor	1906
Wacker DR E over Lower Wacker Drive	Cook	1436.7 ft	Poor	1975
US 12 20 45 Mannhe over Rr - Up Proviso Yd	Cook	1408.1 ft	Fair	1954
I- 55 SB over Des Plaines River	Will	1405.8 ft	Fair	1957
I- 55 NB over Des Plaines River	Will	1405.8 ft	Fair	1957
Il 390 WB Eoh over Rr - Metra Wetlands	Cook	1403.5 ft	Fair	1993
Wacker Drive over Lower Wacker Drive	Cook	1398.0 ft	Good	2011
Fau 8003 Long Bay over Lake Springfield	Sangamon	1398.0 ft	Fair	1933
135th St/romeo RD over S&scanal I&m Bnsfrr	Will	1384.8 ft	Fair	1997
Kirk Road over Union Pacific R.r.	Kane	1376.3 ft	Poor	1974
Sb-lsd over Randolph ST & Land	Cook	1371.7 ft	Fair	1986
Fai 72 EB over Tr92&149 Nsrr Hadley	Pike	1371.7 ft	Fair	1988
I-72 WB over Tr92&149 Nsrr Hadley	Pike	1357.3 ft	Fair	1988
Il 143 over Shoal Creek	Bond	1352.0 ft	Good	2018
Rodman Avenue over Moline Pool	Rock Island	1344.8 ft	Fair	1981
US 12 20 45 NB over S&s & Im Cnls&icg Rr	Cook	1344.2 ft	Fair	1976
US 12 20 45 SB over Rr - Cn & Canals	Cook	1341.9 ft	Fair	1980
Il 29 over Salt Creek	Mason	1341.9 ft	Fair	2002
I-88 EB over Fox R - Rr - Il 25	Kane	1338.6 ft	Fair	2008
I-88 WB over Fox R - Rr - Il 25	Kane	1333.0 ft	Fair	1958
Fas 858 (roots Rd) over Kaskaskia River	Randolph	1331.7 ft	Fair	1960
Lake Cook Road over Slough E. Of Rand RD	Cook	1317.3 ft	Poor	1981
I-90 (eb) over Fox River/duncan AVE	Kane	1315.6 ft	Good	2015
I-90 (wb) over Fox River/duncan AVE	Kane	1315.6 ft	Good	2015
Southwest HWY over Rr - Csxt Creek Etc	Cook	1312.0 ft	Good	1999
Il 267 over Macoupin Creek	Jersey	1310.0 ft	Fair	1941
Fabyan Parkway over Fox River	Kane	1309.4 ft	Fair	1974
25th AVE over Rr - Ihb	Cook	1306.8 ft	Fair	1965
I-90 Skyway over Calumet River	Cook	1301.8 ft	Fair	1958
I-290 Ike over Canal ST Thru Despl	Cook	1299.9 ft	Fair	1952
I-70 WB over Nsrr Trra Industrial AVE	St. Clair	1299.2 ft	Good	2013
Upper Level Termin over Lower Level Terminal	Cook	1294.3 ft	Fair	1993
Mlk Bridge E Appr. over Il3 Trra(uprr) 1st Mo Av	St. Clair	1285.8 ft	Good	2018
Jefferson ST over Rock Riv& Madison ST	Winnebago	1285.1 ft	Fair	1925
I- 90 94 SB 2 I-55 over I- 55 Stevenson	Cook	1275.9 ft	Fair	1964
I-70 EB over Nsrr Trra Industrial AVE	St. Clair	1268.7 ft	Good	2013
Fas 860 over Old Miss Rv Overflow	Randolph	1262.5 ft	Good	1989
Canal Street over Union Station Tracks	Cook	1259.8 ft	Poor	1926
I- 55 EB To US 41n over US 41 Lsd & Cn Rr	Cook	1251.0 ft	Good	2017
US 12 45 Mannheim over Rr - Metra Cp Rds	Cook	1250.3 ft	Good	2010
Randall Road over Metra Ic&e Up Rrs	Kane	1246.4 ft	Fair	1979
I-55/64 Cd WB "g" over Trendley Avenue	St. Clair	1246.4 ft	Fair	1968
Fas 1807 (us-50bus over Embarras River	Lawrence	1235.9 ft	Fair	1977
I- 90 94 Elev Loca over Stewart ST To 29 ST	Cook	1233.9 ft	Fair	1962
I-55/64; US 40 WB over Broadway & Metrolink	St. Clair	1229.0 ft	Fair	1965
I-255 over Church RD Uprr Kcsrr	St. Clair	1226.0 ft	Fair	1982
I- 90 94 Dan Ryan over Maxwell To 15th ST	Cook	1214.2 ft	Fair	1962
York RD over Land Bridge	DuPage	1212.6 ft	Fair	1996