Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
Data updated May 2026
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
0.9pp vs national avg 7.0%
Illinois vs national bridge condition
Illinois - Good condition share 41.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Illinois - Poor-condition share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (102)
Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222
Illinois vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
Rhode Island
7.69% top marginal rate
NE
Nebraska
7.73% top marginal rate
IL
Illinois
7.88% top marginal rate
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
FAS 1599
PoorOver: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Built 1980 Load: 0.6 t ADT: 200
CH 15
PoorOver: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Built 1977 Load: 1.0 t ADT: 1,400
MOOSE RD - TR 240
PoorOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
PoorOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
PoorOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
PoorOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
ILL 116
FairOver: ELLISON CREEK
4 MI W OF ROSEVILLE, Warren, IL
Built 1991 Load: 64.8 t ADT: 850
TR 47
FairOver: SCATTERING FORK
0.7 MI NW OF TUSCOLA, Douglas, IL
Built 1954 Load: 65.1 t ADT: 225
GALENA ROAD
FairOver: BIG ROCK CREEK
CH9 OVR BIG ROCK, Kendall, IL
Built 1964 Load: 65.1 t ADT: 6,800
TR 17
FairOver: HORSE CREEK
3.3 MI NE FARMERSVLE, Montgomery, IL
Built 1958 Load: 65.1 t ADT: 50
US 30
FairOver: UNION PACIFIC RR
.6 MI W ILL 84, Whiteside, IL
Built 1956 Load: 65.1 t ADT: 9,650
I-80 WB
FairOver: SPRING CREEK
1.7 MI E JCT IL 89, Bureau, IL
Built 2009 Load: 65.4 t ADT: 12,200
CH 16
FairOver: S FORK INDIAN CREEK
4.0 MI S CHARLESTON, Coles, IL
Built 1937 Load: 65.4 t ADT: 950
PULAKSI RD
FairOver: RR - CSXT
0.1 M S OF 123RD ST, Cook, IL
Built 1935 Load: 65.4 t ADT: 25,000
FAP-823 (ILL-15)
FairOver: TRIB BUTTER CREEK
2 MI E WAYNE CO LN, Edwards, IL
Built 1976 Load: 65.4 t ADT: 2,800
I-55 NB
FairOver: IT RR (ABANDONED)
2.8 M E I-55/155 INT, Logan, IL
Built 1973 Load: 65.4 t ADT: 10,750
I-55 SB
FairOver: IT RR (ABANDONED)
2.8 M E I-55/155 INT, Logan, IL
Built 1973 Load: 65.4 t ADT: 10,750
ILL 26
FairOver: STRAWN CREEK
3.61 MI S OF IL 17, Marshall, IL
Built 2001 Load: 65.4 t ADT: 2,100
I-39 & US 51
FairOver: STREAM
0.2 MI N LEE CO. LN., Ogle, IL
Built 1981 Load: 65.4 t ADT: 19,500
ILL.13
FairOver: PANKEY BRANCH
0.3 MI E HARRISBURG, Saline, IL
Built 1972 Load: 65.4 t ADT: 3,350
US 150- MEADOWS AV
FairOver: LITTLE FARM CREEK
MEADOWS AVE E. PEO., Tazewell, IL
Built 2010 Load: 65.8 t ADT: 8,100
I-355
FairOver: STREAM
.2 MI S. ILL RTE 53, DuPage, IL
Built 1988 Load: 66.1 t ADT: 119,400
I-57 SB
FairOver: LANGAN CREEK
2.23 MI S CHEBANSE I, Iroquois, IL
Built 2013 Load: 66.1 t ADT: 9,550
I-39 & US 51 SB
FairOver: SOO LINE RR
0.25 MI S OF ILL 72, Ogle, IL
Built 1981 Load: 66.1 t ADT: 16,100
I-39 & US 51 NB
FairOver: SOO LINE RR
0.25 MI S OF ILL.72, Ogle, IL
Built 1981 Load: 66.1 t ADT: 16,100
U.S. 45
FairOver: SPRING CREEK
0.25 M S DEL RAY RD, Iroquois, IL
Built 2002 Load: 66.4 t ADT: 1,050
ILL 48
FairOver: S FK SANGAMON RIVER
1.6MI SW TAYLORVILLE, Christian, IL
Built 1989 Load: 66.7 t ADT: 3,100
US 67
FairOver: SEMINARY CREEK
0.21 MI S WHITEHALL, Greene, IL
Built 1972 Load: 66.7 t ADT: 3,900
IL 17
FairOver: MAZON RIVER
1.5 M. E. OF REDDICK, Kankakee, IL
Built 2003 Load: 66.7 t ADT: 2,300
ST CLAIR AVE EB
FairOver: HARDING DITCH
1.5 M W ILL 157, St. Clair, IL
Built 1959 Load: 66.7 t ADT: 5,900
BROAD STREET
FairOver: CEDAR CREEK CHANNEL
N.OF WATER ST., Knox, IL
Built 1930 Load: 67.1 t ADT: 1,550
I 39 & US 51
FairOver: KILBUCK CREEK TRIB
1.4MI S WINNEBAGO CO, Ogle, IL
Built 1981 Load: 67.1 t ADT: 32,800
IL 56 EB
FairOver: BLACKBERRY CREEK
.4M N OF GALENA BLVD, Kane, IL
Built 1958 Load: 67.4 t ADT: 14,800
IL 56 WB
FairOver: BLACKBERRY CREEK
.4M N OF GALENA BLVD, Kane, IL
Built 1958 Load: 67.4 t ADT: 14,800
FAS 1579
FairOver: GROVE CREEK
1.0 MI SW SWEETWATER, Menard, IL
Built 1970 Load: 67.4 t ADT: 300
I-74
FairOver: SWAB RUN
.2 M E OF KNOX CO LI, Peoria, IL
Built 1968 Load: 67.4 t ADT: 15,400
NEW AVE
FairOver: LONG RUN CRK OVERFLO
1.7 M W OF IL 171, Will, IL
Built 1994 Load: 67.7 t ADT: 5,450
I 57 SB
FairOver: LAKE CREEK
0.3 MI S JOHNSTON C, Williamson, IL
Built 2005 Load: 67.7 t ADT: 20,650
IL 83, 171
FairOver: CAL SAG EXTENSION
0.2 M S IL 171, Cook, IL
Built 1935 Load: 68.0 t ADT: 20,500
I-294
FairOver: STREAM
1.6 M N I-55, Cook, IL
Built 1958 Load: 68.0 t ADT: 173,800
FAS 2801(ILL-128)
FairOver: BEECH CREEK
5.25 MI S ILL-33, Effingham, IL
Built 1930 Load: 68.0 t ADT: 1,150
IL 1/FAP 332A
FairOver: SUGAR CREEK TRIB
.71 M N OF CH10, Iroquois, IL
Built 1994 Load: 68.0 t ADT: 2,200
I 64
FairOver: DRAINAGE DITCH
4.3 MI W ILL-1, White, IL
Built 1975 Load: 68.0 t ADT: 12,200
I 57 NB
FairOver: LAKE CREEK
0.3 MI S JOHNSTON C, Williamson, IL
Built 2005 Load: 68.0 t ADT: 20,650
I-90
FairOver: STREAM
.1 MI N RIVERSIDE BL, Winnebago, IL
Built 1958 Load: 68.0 t ADT: 30,700
TR 109
FairOver: BROWN BRANCH
2.5MI SE STONINGTON, Christian, IL
Built 1953 Load: 68.4 t ADT: 35
IL 1 US 136 (FAP 3
FairOver: STREAM
1.5 MI SW BISMARCK, Vermilion, IL
Built 1938 Load: 68.4 t ADT: 4,100
TR-540
FairOver: BAILY CK DR DITCH
4 MI NW GOLDEN GATE, Wayne, IL
Built 1972 Load: 68.4 t ADT: 75
TR 4
FairOver: BLUE CR
1MI E. BAYVIEW GARD., Woodford, IL
Built 1990 Load: 68.4 t ADT: 550
ILL 37
FairOver: POND CREEK
S OF SCL W FRANKFORT, Franklin, IL
Built 2012 Load: 68.7 t ADT: 7,450
TR 119 BOOTH ROAD
FairOver: TRIB E FK MAZON RIV
.27 MI E TYNAN ROAD, Grundy, IL
Built 1981 Load: 68.7 t ADT: 50
FAP 781 (IL 33)
FairOver: STREAM
1.5 MI N LAW C L, Crawford, IL
Built 2006 Load: 69.0 t ADT: 675
LASALLE STREET
FairOver: TROLLEY CAR TUNNEL
N. OF CHICAGO RIVER, Cook, IL
Built 1911 Load: 69.3 t ADT: 18,600
US 52
FairOver: BUFFALO CREEK
0.3 MI. W. IL 26, Ogle, IL
Built 1990 Load: 69.3 t ADT: 1,100
US 20
FairOver: CN RAILROAD
2 MI. E. OF ELROY, Stephenson, IL
Built 2010 Load: 69.3 t ADT: 8,050
MERIDIAN RD
FairOver: UNNAMED CREEK
0.3 MI N STATE ST, Winnebago, IL
Built 1968 Load: 69.3 t ADT: 4,150
Showing 13,851-13,900 of 27,743 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.