Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near national median SD
Illinois bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Illinois — drawn straight from the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
- 7.9%
- Structurally deficient
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges rated 0-4
Structurally Deficient
7.9%
2,186 bridges flagged for repair priority
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 — Structurally deficient share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Illinois (FHWA NBI)
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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Illinois on the same metric.
44
Rhode Island
7.69% top marginal rate
31
Nebraska
7.73% top marginal rate
17
Illinois
7.88% top marginal rate
25
Massachusetts
7.96% top marginal rate
29
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by composite NBI rating. Each is inspected at least every 24 months.
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
Structurally DeficientOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
Structurally DeficientOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
Structurally DeficientOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
Structurally DeficientOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
TR 94
PoorOver: STREAM
0.2 MI N OF RISING, Champaign, IL
Built 1932 Load: 25.9 t ADT: 1,300
FAU 7200(PERKINS R
PoorOver: SALINE BRANCH DITCH
NE EDGE OF URBANA, Champaign, IL
Built 1977 Load: 25.9 t ADT: 1,450
TR 64
PoorOver: SANGAMON RIVER
4 MI N FISHER, Champaign, IL
Built 1980 Load: 25.9 t ADT: 50
VAN BUREN ST
PoorOver: ADDISON CR
0.7 M E US 45, Cook, IL
Built 1928 Load: 25.9 t ADT: 450
ADAMS ST
PoorOver: ADDISON CR
0.72 M E MANHEIM P20, Cook, IL
Built 1928 Load: 25.9 t ADT: 150
30TH AVE
PoorOver: ADDISON CR
0.7 M E. US 45, Cook, IL
Built 1928 Load: 25.9 t ADT: 150
GAYNELLE RD
PoorOver: MIDLOTHIAN CR
6200W-16900S P3, Cook, IL
Built 1968 Load: 25.9 t ADT: 325
HEITZ RD - TR 459
PoorOver: OTTER CREEK
E1/2-21-T4NR1E, Fulton, IL
Built 1955 Load: 25.9 t ADT: 50
US 6
PoorOver: CSX Railroad
5.27 E OF ROUTE 47, Grundy, IL
Built 1974 Load: 25.9 t ADT: 7,050
FAP-853 (ILL-14)
PoorOver: BEAR CREEK
.5 MI W MCLEANSBORO, Hamilton, IL
Built 1923 Load: 25.9 t ADT: 3,200
TR 7
PoorOver: CAMP CREEK
2.5 SE DALLAS CITY, Hancock, IL
Built 1962 Load: 25.9 t ADT: 100
W COUNCIL HILL ROA
PoorOver: E FK OF GALENA RIVER
5 MI NE OF GALENA, Jo Daviess, IL
Built 1940 Load: 25.9 t ADT: 275
SCHAFER RD
PoorOver: ROB ROY CK
BY ELDAMAIN RD, Kendall, IL
Built 1978 Load: 25.9 t ADT: 1,000
ILL 23 FAP 68
PoorOver: COVEL CREEK
4.95 MI S OF ILL 71, LaSalle, IL
Built 1960 Load: 25.9 t ADT: 5,550
PALMER AVE
PoorOver: BRAINARDS BRANCH
0.2 MI N IL RT 10, Logan, IL
Built 1966 Load: 25.9 t ADT: 500
TR 429
PoorOver: E FK WOOD R
2 W 2N BUNKER, Macoupin, IL
Built 1969 Load: 25.9 t ADT: 125
47 TH AVE DR
PoorOver: DRAINAGE DITCH
E OF 16 ST SOUTHPARK, Rock Island, IL
Built 1973 Load: 25.9 t ADT: 875
I-55 (NB)
PoorOver: SANGAMON RIVER
2.8M N IL54/SANG. AV, Sangamon, IL
Built 1963 Load: 25.9 t ADT: 14,600
I-55 SB
PoorOver: SANGAMON RIVER
2.8M N IL54/SANG. AV, Sangamon, IL
Built 1963 Load: 25.9 t ADT: 14,600
CATHERINE DRIVE
PoorOver: STREAM
300'W.OF DRAUDEN RD, Will, IL
Built 1900 Load: 25.9 t ADT: 250
IL 50/83 CICERO A
PoorOver: CAL SAG CHANNEL
0.4 M S of 127th St, Cook, IL
Built 1938 Load: 26.2 t ADT: 32,900
EWING AVE (92ND ST
PoorOver: CALUMET RIVER
3331 E. 92ND STREET, Cook, IL
Built 1914 Load: 26.2 t ADT: 11,200
HAUMESSER ROAD
PoorOver: BRNCH KISHWAUKEE RV
1550N 400E, DeKalb, IL
Built 1968 Load: 26.2 t ADT: 10
IL 38
PoorOver: WINFIELD CREEK
2.6 M E OF IL 59, DuPage, IL
Built 1982 Load: 26.2 t ADT: 25,000
TR 344
PoorOver: LITTLE CREEK
2.0 MI S LAHARPE, Hancock, IL
Built 1974 Load: 26.2 t ADT: 75
Lock & Park Traffi
PoorOver: Henderson River
Lock 18 Access Road, Henderson, IL
Built 1937 Load: 26.2 t ADT: 100
FAS 323 CH 40
PoorOver: POSSUM TROT DITCH
3.5M S SHELDON 1.1 W, Iroquois, IL
Built 1938 Load: 26.2 t ADT: 300
FAS-805
PoorOver: RACOON CREEK
7 MI W ST FRANCISVLE, Lawrence, IL
Built 1963 Load: 26.2 t ADT: 225
TR 195
PoorOver: SALT CK TRIB
2 W 1 MI N MT PLSKI, Logan, IL
Built 1958 Load: 26.2 t ADT: 50
LORAN RD.
PoorOver: PLUM CR. BR.
5.5 MI SW PEARL CITY, Stephenson, IL
Built 1934 Load: 26.2 t ADT: 225
TR 34 (TH-S14)
PoorOver: THENIUS CREEK
T13N-R9E-4PM SEC 34, Marshall, IL
Built 1964 Load: 26.4 t ADT: 75
EDSON ROAD
PoorOver: BEAVER CR
0.5 MI SE POPLAR GRO, Boone, IL
Built 1973 Load: 26.6 t ADT: 700
TR-67 (Messmer Roa
PoorOver: E PLUM RIVER
3.5 MI W MT.CARROLL, Carroll, IL
Built 1962 Load: 26.6 t ADT: 25
TR 2
PoorOver: INDIAN CREEK
7MI W HAGENER, Cass, IL
Built 1989 Load: 26.6 t ADT: 50
FAS-698 (CH-3)
PoorOver: LITTLE CREEK
1 MI S STOY, Crawford, IL
Built 1959 Load: 26.6 t ADT: 800
CH 16 PIPER CITY R
PoorOver: N FORK VERMILLION
1560E,2500N, Ford, IL
Built 1959 Load: 26.6 t ADT: 150
TR 362
PoorOver: WALKER CR
10 MI E CAMBRIDGE, Henry, IL
Built 1955 Load: 26.6 t ADT: 25
ILL 49
PoorOver: SHAVETAIL CREEK
4.83 MI S OF US 24, Iroquois, IL
Built 1927 Load: 26.6 t ADT: 1,000
MCKANNA RD/TR 102
PoorOver: AUX SABLE CK
1.5 MILES N OF US 52, Kendall, IL
Built 1980 Load: 26.6 t ADT: 200
LENOX RD
PoorOver: SUGAR CREEK
4.0 MI NW OF DIXON, Lee, IL
Built 1974 Load: 26.6 t ADT: 100
TR-114
PoorOver: ZION HILL BRANCH
1 MI NE RACON CK RES, Marion, IL
Built 1909 Load: 26.6 t ADT: 300
TR 190
PoorOver: MAIN DITCH
2 MI SE FOREST CITY, Mason, IL
Built 1972 Load: 26.6 t ADT: 75
SULLIVAN ROAD
PoorOver: TRIB N BR KISWKE RIV
0.1 MI N COLLINS RD, McHenry, IL
Built 1965 Load: 26.6 t ADT: 100
HARMONY ROAD
PoorOver: COON CREEK
0.3 MI E OF PAYNE RD, McHenry, IL
Built 1980 Load: 26.6 t ADT: 725
ILL 8
PoorOver: TRIB KICKAPOO CR
1 MI NW OF POTTSTOWN, Peoria, IL
Built 1991 Load: 26.6 t ADT: 2,750
FAU-6577 (MaxwellR
PoorOver: C&NW RR (175614U)
SW1/4-10-LIMESTONE, Peoria, IL
Built 1968 Load: 26.6 t ADT: 3,150
TR 80
PoorOver: BRANCH KISER CREEK
1MI N. NEW CANTON, Pike, IL
Built 1988 Load: 26.6 t ADT: 150
TR-211
PoorOver: E FK BONPAS CREEK
4.5 MI E CALHOON, Richland, IL
Built 1909 Load: 26.6 t ADT: 100
TR 108
PoorOver: MILL CREEK
1 MI SE MILAN, Rock Island, IL
Built 1963 Load: 26.6 t ADT: 350
HAMPTON ST(MS 6320
PoorOver: STREAM
W SIDE OF DANVILLE, Vermilion, IL
Built 1900 Load: 26.6 t ADT: 125
Showing 26,251-26,300 of 27,743 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |