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 13A
PoorOver: BULL CREEK
6 M NE OF GRANT PARK, Kankakee, IL
Built 1978 Load: 29.8 t ADT: 275
TR 228
PoorOver: TRIB TO SPOON RIVER
N.CTR-27-T10NR3E, Knox, IL
Built 1969 Load: 29.8 t ADT: 75
ILL 170
PoorOver: ILL MICH CANAL
0.42 MI S OF US 6, LaSalle, IL
Built 1940 Load: 29.8 t ADT: 5,550
FAS 343 CAMPUS RD
PoorOver: BROUGHTON CREEK
3.7 M SO OF RTE 17, Livingston, IL
Built 1951 Load: 29.8 t ADT: 900
CHARLES RD
PoorOver: Slough Creek
AT NELSON RD, McHenry, IL
Built 1947 Load: 29.8 t ADT: 6,300
VERNON AVENUE
PoorOver: SUGAR CREEK N BRANCH
1.3 MI NNE 150 & 51, McLean, IL
Built 1968 Load: 29.8 t ADT: 8,650
I-55 (SB)
PoorOver: ILLINOIS CENTRAL RR
1M N GLENARM INTCHG, Sangamon, IL
Built 1971 Load: 29.8 t ADT: 17,850
TR 163
PoorOver: HICKORY CREEK
1 MI SW OF MANLIUS, Bureau, IL
Built 1978 Load: 30.1 t ADT: 150
ELM ST
PoorOver: UNION PACIFIC RR
ELM OV UNION P.RR, Cook, IL
Built 1940 Load: 30.1 t ADT: 1,800
GOV. BEVERIDGE HWY
PoorOver: BUCK BRANCH
135N 1400E, DeKalb, IL
Built 1954 Load: 30.1 t ADT: 275
TR 325
PoorOver: E FORK OF BIG CREEK
2.5 MI NW OF OLIVER, Edgar, IL
Built 1920 Load: 30.1 t ADT: 50
ILL 9
PoorOver: TURKEY CR
4.25 MI W OF FIATT, Fulton, IL
Built 1980 Load: 30.1 t ADT: 1,450
EAGLE ROAD
PoorOver: TYLER CREEK
.3 MI W MCLEAN BLVD, Kane, IL
Built 1967 Load: 30.1 t ADT: 150
TR-177
PoorOver: TOMAHAWK CREEK
N 38TH E 815, LaSalle, IL
Built 1964 Load: 30.1 t ADT: 10
TR 25(E WISE RD)
PoorOver: STEVENS CREEK
3 MI N FORSYTH, Macon, IL
Built 1977 Load: 30.1 t ADT: 75
BLUFF RD/ FAS 1857
PoorOver: FULTS CREEK
0.5 MI.SE OF FULTS, Monroe, IL
Built 1983 Load: 30.1 t ADT: 200
FAS 1612
PoorOver: MAUVAISE TERRE CR
1MI N OF JACKSONVILL, Morgan, IL
Built 1976 Load: 30.1 t ADT: 700
CH 8-KIMZEY ROAD
PoorOver: REESE CREEK
2.2 MI E OF US 51, Perry, IL
Built 1988 Load: 30.1 t ADT: 300
FAS 360
PoorOver: ROCK CREEK
.3 MIL S OF CONGERVL, Woodford, IL
Built 2001 Load: 30.1 t ADT: 350
ILL 177
PoorOver: QUEENS LAKE
W CL NEW MEMPHIS, Clinton, IL
Built 1922 Load: 30.5 t ADT: 2,000
OHIO ST JFK FEEDER
PoorOver: N BR CHICAGO RIVER
0.5 M E HALSTEDST, Cook, IL
Built 1961 Load: 30.5 t ADT: 80,400
CENTRAL RD
PoorOver: W BR SALT CREEK
0.15 E ILL 53 P5,18, Cook, IL
Built 1960 Load: 30.5 t ADT: 2,350
INDIANA AVE
PoorOver: LITTLE CALUMET RIVER
13500 S. INDIANA AVE, Cook, IL
Built 1915 Load: 30.5 t ADT: 8,050
IL 72 FAP 553
PoorOver: OWENS CREEK
1.3 MI W OF KIRKLAND, DeKalb, IL
Built 1982 Load: 30.5 t ADT: 2,150
NEW LEBANON RD
PoorOver: COON CREEK
3230N 1790E, DeKalb, IL
Built 1965 Load: 30.5 t ADT: 150
TR-96 (ANDERLAND R
PoorOver: SO BR KISHWAUKEE RV
1480N 600E, DeKalb, IL
Built 1972 Load: 30.5 t ADT: 25
CH 26 STEVE'S RD
PoorOver: THE BIG FOUR
360N,1500E, Ford, IL
Built 1966 Load: 30.5 t ADT: 250
ILL 1
PoorOver: LITTLE BEAVER CREEK
1.2 N PAPINEAU RD, Iroquois, IL
Built 1954 Load: 30.5 t ADT: 2,000
TR 150
PoorOver: DRAINAGE DITCH
520 N, 1925 E, Livingston, IL
Built 1940 Load: 30.5 t ADT: 50
TR 152
PoorOver: LAKE FORK CK TRIB
4.5 E 1 MI N ELKHART, Logan, IL
Built 1959 Load: 30.5 t ADT: 50
TOWNSHIP ROAD 451
PoorOver: GIRDER CR
4.1 M E BRIGHTON, Macoupin, IL
Built 1900 Load: 30.5 t ADT: 200
TR 225
PoorOver: HURRICANE CR
5.2 MI SE WITT, Montgomery, IL
Built 1900 Load: 30.5 t ADT: 25
TR 37
PoorOver: W FORK OKAW RIVER
3.5 MI N OF BETHANY, Moultrie, IL
Built 1985 Load: 30.5 t ADT: 350
TR 119
PoorOver: TRIB OF MARYS RV
2.5 MI E EDEN, Randolph, IL
Built 1964 Load: 30.5 t ADT: 275
CH 68
PoorOver: MUD CREEK
3.0MI E ILL RTE 13, St. Clair, IL
Built 1962 Load: 30.5 t ADT: 250
FAU 6999(VOORHEES)
PoorOver: E FORK LICK CREEK
2030 E, Vermilion, IL
Built 1962 Load: 30.5 t ADT: 5,000
TR 98
PoorOver: FOUNTAIN CREEK
1 MI SW EAST LYNN, Vermilion, IL
Built 1983 Load: 30.5 t ADT: 50
FAS-797
PoorOver: DEER CREEK
6.3 MI N FAIRFIELD, Wayne, IL
Built 1973 Load: 30.5 t ADT: 1,600
PRAIRIE CENTER ROA
PoorOver: BR OF ROCK CREEK
0.4 M W OF MORRISON, Whiteside, IL
Built 1981 Load: 30.5 t ADT: 1,000
CENTERVILLE ROAD
PoorOver: SO FORK KENT CREEK
0.1 MI S CUNNINGHAM, Winnebago, IL
Built 1928 Load: 30.5 t ADT: 400
COUNTRY CLUB RD.
PoorOver: SALINE BR DRAIN DIT
C CLUB RD NCL URBANA, Champaign, IL
Built 1979 Load: 30.8 t ADT: 4,200
WATSON RD
PoorOver: LITTLE INDIAN CREEK
600N 805E, DeKalb, IL
Built 1980 Load: 30.8 t ADT: 25
TR 140 CAMPBELL RO
PoorOver: JOHNNY RUN CREEK
.33 MI S ILL RT 113, Grundy, IL
Built 1982 Load: 30.8 t ADT: 75
RAYMOND STREET
PoorOver: POPLAR CREEK
0.3 MI S BY PASS 20, Kane, IL
Built 1986 Load: 30.8 t ADT: 3,100
I-39 SB/US 51SB
PoorOver: C & NW RR
0.21 MI N OF US 52, LaSalle, IL
Built 1977 Load: 30.8 t ADT: 9,350
CO RD 57
PoorOver: VERMILION RIVER
E 12TH,N 1915, LaSalle, IL
Built 1969 Load: 30.8 t ADT: 200
TR 354
PoorOver: COVEL CREEK
E 21ST N 2240, LaSalle, IL
Built 1973 Load: 30.8 t ADT: 25
TR-243
PoorOver: LITTLE BONPAS CREEK
0.25 MI W HELENA, Lawrence, IL
Built 1988 Load: 30.8 t ADT: 150
US 24
PoorOver: BR S FK VERMILION RV
1.72 MI E OF ILL 47, Livingston, IL
Built 1951 Load: 30.8 t ADT: 2,950
CH 25(FAU 7454)
PoorOver: SANGAMON RIVER
2.5 MI N OF OAKLEY, Macon, IL
Built 1981 Load: 30.8 t ADT: 1,300
Showing 26,451-26,500 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 |