Bridges in Illinois

26,927Total Bridges

12,012Good

12,352Fair

2,563Poor

Bridge Conditions in Illinois

Illinois has 26,927 bridges tracked in the National Bridge Inventory. Of these, 2,563 (9%) are rated as poor condition — meaning at least one major component has significant deterioration. The average bridge in Illinois is 46 years old.

Illinois Bridge Facts

Total Bridges	26,927
Good Condition	12,012
Fair Condition	12,352
Poor Condition	2,563
Average Bridge Age	46 years
Longest Bridge	7121.1 ft

Longest Bridges in Illinois

I-39 US 51 over Il Rv/il 351/ Bo Rr7121.1 ftFair I355 NB & SB over Desplaines River Val6592.8 ftFair Fai 70a over Mississippi River6461.9 ftGood US 51 over Ohio River5865.2 ftFair US 20 over Miss River HWY Rr5759.8 ftFair

Counties in Illinois

Adams317 bridges19 poor Alexander93 bridges8 poor Bond162 bridges18 poor Boone109 bridges11 poor Brown71 bridges10 poor Bureau374 bridges60 poor Calhoun81 bridges4 poor Carroll180 bridges26 poor Cass76 bridges13 poor Champaign728 bridges59 poor Christian320 bridges55 poor Clark231 bridges9 poor Clay167 bridges24 poor Clinton190 bridges13 poor Coles302 bridges21 poor Cook1722 bridges246 poor Crawford198 bridges11 poor Cumberland169 bridges12 poor De Witt192 bridges11 poor DeKalb262 bridges33 poor Douglas233 bridges4 poor DuPage345 bridges26 poor Edgar278 bridges11 poor Edwards79 bridges6 poor Effingham254 bridges12 poor Fayette356 bridges16 poor Ford302 bridges24 poor Franklin310 bridges9 poor Fulton209 bridges44 poor Gallatin82 bridges6 poor Greene162 bridges11 poor Grundy268 bridges76 poor Hamilton169 bridges4 poor Hancock290 bridges63 poor Hardin61 bridges4 poor Henderson142 bridges18 poor Henry329 bridges42 poor Iroquois568 bridges83 poor Jackson228 bridges16 poor Jasper181 bridges8 poor Jefferson259 bridges21 poor Jersey113 bridges6 poor Jo Daviess192 bridges21 poor Johnson118 bridges3 poor Kane339 bridges24 poor Kankakee344 bridges34 poor Kendall131 bridges15 poor Knox304 bridges32 poor LaSalle528 bridges75 poor Lake250 bridges24 poor Lawrence185 bridges42 poor Lee373 bridges42 poor Livingston579 bridges46 poor Logan292 bridges27 poor Macon346 bridges54 poor Macoupin240 bridges40 poor Madison524 bridges46 poor Marion294 bridges22 poor Marshall155 bridges19 poor Mason86 bridges3 poor Massac132 bridges11 poor McDonough210 bridges13 poor McHenry227 bridges48 poor McLean625 bridges16 poor Menard89 bridges10 poor Mercer163 bridges23 poor Monroe132 bridges11 poor Montgomery261 bridges10 poor Morgan234 bridges17 poor Moultrie172 bridges16 poor Ogle378 bridges28 poor Peoria351 bridges63 poor Perry136 bridges10 poor Piatt246 bridges14 poor Pike332 bridges34 poor Pope87 bridges4 poor Pulaski108 bridges10 poor Putnam50 bridges3 poor Randolph149 bridges10 poor Richland151 bridges6 poor Rock Island272 bridges13 poor Saline185 bridges8 poor Sangamon464 bridges28 poor Schuyler115 bridges12 poor Scott99 bridges7 poor Shelby335 bridges26 poor St. Clair485 bridges45 poor Stark93 bridges5 poor Stephenson340 bridges11 poor Tazewell358 bridges53 poor Union188 bridges7 poor Vermilion494 bridges31 poor Wabash90 bridges5 poor Warren199 bridges15 poor Washington234 bridges14 poor Wayne265 bridges21 poor White213 bridges14 poor Whiteside278 bridges23 poor Will656 bridges65 poor Williamson200 bridges7 poor Winnebago465 bridges32 poor Woodford224 bridges22 poor

Poor Condition Bridges in Illinois

Bridge	County	Length	Traffic	Year
I- 90 94 Ryan Elev over Canal To Stewart Sts	Cook	574.8 ft	245,500	1962
I- 94 Bishop Ford over Rr - Ihb & Csxt	Cook	416.7 ft	178,600	1949
I- 94 Bishop Ford over Greenwood AVE	Cook	313.0 ft	152,900	1947
I- 94 Bishop Ford over Little Cal River	Cook	270.3 ft	152,900	1947
Il 53 NB over Kirchoff RD	Cook	198.2 ft	123,700	1963
Il 53 SB over Kirchoff RD	Cook	198.2 ft	123,700	1963
Il 53 NB over US 14 NW HWY & Up Rr	Cook	515.4 ft	113,400	1964
Il 53 NB over Industrial AVE	Cook	155.5 ft	113,400	1963
Il 53 SB over US 14&uprr Fau3512	Cook	519.4 ft	113,400	1964
Il 53 SB over Industrial AVE	Cook	155.5 ft	113,400	1963
I-55/64; US 40 Psc over Trra	St. Clair	856.0 ft	113,200	1966
Il 53 NB over Palatine RD	Cook	250.0 ft	105,100	1964
Il 53 SB over Palatine RD	Cook	201.8 ft	105,100	1964
Lake Shore Drive over Main Br Chicago Riv	Cook	352.4 ft	102,000	1937
Lake Shore DR over Wacker Drive	Cook	200.1 ft	102,000	1986
Lake Shore DR over Belmont Av	Cook	70.2 ft	101,600	1941
Lsd-ramp 300 over Land	Cook	899.9 ft	95,000	1986
Lake Shore DR over Irving Park RD	Cook	66.9 ft	94,800	1967
Lake Shore DR over Lower Lsd & Land	Cook	453.4 ft	94,400	1986
I-190 WB Jfk over I-294 Tri State Toll	Cook	243.1 ft	92,200	1959
Il 53 Fap 342 over Anderson DR Ms 3240	Cook	52.2 ft	89,400	1965
I- 94 SB Bishop Fo over Little Cal River	Cook	794.9 ft	89,300	1949
I- 94 NB Bishop Fo over Little Cal River	Cook	794.9 ft	89,300	1949
Il 53 NB over US 12 (rand Road)	Cook	223.1 ft	83,100	1965
Ohio ST Jfk Feeder over N Br Chicago River	Cook	361.5 ft	80,400	1961
Ohio ST Feeder E A over Kingsbury ST	Cook	557.1 ft	80,400	1956
Ohio ST Feeder W A over Rr - Up Trib Parking	Cook	572.2 ft	80,400	1956
I-290 Ike(congress over Between Riv & Po	Cook	209.0 ft	76,900	1954
I-290 Ike Congress over Thru Post Office	Cook	339.9 ft	76,900	1954
I-294 NB over C&nw Rr	Cook	393.0 ft	75,150	1958
I- 55 over Joliet RD	Will	210.6 ft	73,200	1955
I-294 SB over Ill 7 (sw Hwy)	Cook	67.9 ft	71,700	1958
I-294 NB over Cal Sag Canal	Cook	584.0 ft	71,700	1958
I-294 NB over 135th ST	Cook	75.1 ft	71,700	1958
I- 55 WB Stevenson over Rr - Csxt	Cook	224.1 ft	71,000	1963
I- 55 EB Stevenson over Rr - Csxt	Cook	224.1 ft	71,000	1963
I- 55 EB Stevenson over Il 50 (cicero Ave)	Cook	206.7 ft	68,750	1963
I-55/70;/64 over Csxrr Nsrr Trrarr	St. Clair	1615.5 ft	66,500	1959
Il 53 NB over Il 62 Algonquin RD	Cook	158.8 ft	64,000	1962
Il 53 SB Fap 342 over Il 62 Fap 339	Cook	162.1 ft	64,000	1962
I- 55 EB Stevenson over Rr - Bnsf	Cook	427.5 ft	62,350	1964
I- 55 WB Stevenson over Rr - Bnsf	Cook	427.5 ft	62,350	1964
I- 55 WB Stevenson over Santa Fe DR	Cook	257.9 ft	62,350	1963
I- 55 EB Stevenson over Rr - Bnsf	Cook	255.2 ft	62,350	1964
I- 55 WB Stevenson over Rr - Bnsf	Cook	255.2 ft	62,350	1964
I-290 EB (sb) over Rr - Up (south)	Cook	352.0 ft	61,950	1958
I- 57 SB over Little Cal Riv Broad	Cook	1651.9 ft	54,850	1967
I- 57 NB over Little Cal Riv Broad	Cook	1651.9 ft	54,850	1967
Cicero AVE over Sanitary Ship Canal	Cook	313.0 ft	50,400	1927
US 20 By Pass over Fox River	Kane	660.1 ft	47,200	1960
US 20 over ST Charles ST	Kane	160.1 ft	47,200	1960
I- 80 WB over Il 53	Will	179.5 ft	45,600	1967
I- 80 EB over Rr & Gardner ST	Will	483.3 ft	45,600	1964
I- 80 WB over Rr & Gardner ST	Will	477.0 ft	45,600	1964
Fai 255 over Ill 15	St. Clair	203.1 ft	44,300	1981
US 20 over Poplar Creek	Cook	119.1 ft	44,100	1959
I-74 over US 45(fap 800)	Champaign	186.7 ft	41,900	1956
I-255 over Nsrr	St. Clair	157.2 ft	41,500	1980
Fai 255 over Ill 163	St. Clair	126.6 ft	41,500	1980
Il 43 (harlem AVE over US 12 20 (95th St)	Cook	196.9 ft	41,100	1961
Il 171 SB over Joliet Rd&bn Rr Spur	Cook	405.2 ft	40,100	1964
Lake Cook Road over Slough E. Of Rand RD	Cook	1317.3 ft	39,900	1981
Il 5 WB (j Deere R over Fai 74	Rock Island	236.5 ft	38,900	1970
Harlem AVE NB Ill over San & Ship Canal	Cook	456.4 ft	35,500	1931
Il 43 (harlem AVE over I- 55 Stevenson	Cook	251.0 ft	35,500	1964
Il 43 SB Harlem A over San & Ship Canal	Cook	448.8 ft	35,500	1966
Il 43 (harlem AVE over I-290 & Il 110/cta/rr	Cook	352.0 ft	34,800	1957
Il 43 (harlem AVE over I- 80	Cook	260.2 ft	34,200	1967
I-55/70 & US 40 EB over Drainage Canal	St. Clair	128.0 ft	33,250	1960
Il 50/83 Cicero A over Cal Sag Channel	Cook	378.9 ft	32,900	1938
Willow RD over W F N Br Chicago Riv	Cook	53.1 ft	31,700	1941
I-190 EB Jfk over Des Plaines Riv RD	Cook	179.8 ft	31,550	1959
I-190 WB Jfk over Des Plaines Riv RD	Cook	175.9 ft	31,550	1959
I-190 WB Jfk over I- 90 Toll & D P Riv	Cook	818.9 ft	31,550	1959
Fai 255 over Stolle RD Fau 9208	St. Clair	121.7 ft	31,400	1979
Touhy AVE over I- 94 Edens	Cook	284.8 ft	30,000	1950
US 150 WB over Il 29	Peoria	199.8 ft	30,000	1995
EB US 150 over Illinois River & T&p Rr	Tazewell	4692.3 ft	30,000	1948
WB US 150 over Ill River T&p Rr	Tazewell	4745.1 ft	30,000	1982
Kirk Road over Union Pacific R.r.	Kane	1376.3 ft	29,300	1974
SB Ill 6 over Charter Oak Road	Peoria	126.0 ft	28,400	1978
Roosevelt RD over S Br Chicago River	Cook	262.5 ft	26,800	1928
Fai 255 Nb/eb over Uprr	Monroe	317.3 ft	25,850	1984
127th ST over I- 57	Cook	219.2 ft	25,600	1966
Ill 13 EB over Craborchard Lake	Williamson	131.9 ft	25,600	1964
Rand RD over Des Plaines River	Cook	161.1 ft	25,500	1928
I-39 SB over Harrison AVE	Winnebago	228.0 ft	25,450	1963
Il 7 Southwest H over Cal Sag Channel	Cook	346.5 ft	25,400	1931
I- 80 EB over Dupage River	Will	292.7 ft	25,150	1960
I- 80 EB over I- 55	Will	239.2 ft	25,150	1960
US 6 (159th St) over I- 57	Cook	246.7 ft	25,100	1968
Il 38 over Winfield Creek	DuPage	22.6 ft	25,000	1982
I-55 Busn Loop over Norfolk Southern Railway	McLean	306.1 ft	25,000	1940
Fai 270 EB over County Ditch	Madison	37.1 ft	24,900	1963
Fai 270 WB over County Ditch	Madison	37.1 ft	24,900	1963
Western Av/31st over Sanitary&ship Canal	Cook	294.9 ft	24,800	1940
Touhy AVE over N Br Chicago River	Cook	66.6 ft	24,400	1925
Il 7 over S&s Canal/des Plns R	Will	3172.9 ft	24,400	1971
Il 7 over Rr - Ej&e	Will	156.5 ft	24,400	1990
Il 171 (1st Ave) over I-290 Ike - Il 110 Ckc	Cook	209.6 ft	24,300	1951