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
FAS-1695 (CH-13)
FairOver: N BR HUDSON CREEK
2 MI SW HUTSONVILLE, Crawford, IL
Built 1937 Load: 24.3 t ADT: 475
FAS-1695
FairOver: CREEK
1 MI NE EATON, Crawford, IL
Built 1909 Load: 24.3 t ADT: 425
TR-71
FairOver: CREEK
1 MI S HUTSONVILLE, Crawford, IL
Built 1909 Load: 24.3 t ADT: 100
TR-221
FairOver: TRIB BIG CREEK
3.5 MI S OBLONG, Crawford, IL
Built 1909 Load: 24.3 t ADT: 50
TR-236
FairOver: SUGAR CREEK
1 MI W TRIMBLE, Crawford, IL
Built 1976 Load: 24.3 t ADT: 50
FAS-1701
FairOver: CREEK
3 MI SW ROBINSON, Crawford, IL
Built 1933 Load: 24.3 t ADT: 800
ROSE STREET
FairOver: CREEK
HUTSONVILLE, Crawford, IL
Built 1959 Load: 24.3 t ADT: 100
HOWARD STREET
FairOver: CREEK
ROBINSON, Crawford, IL
Built 1909 Load: 24.3 t ADT: 1,050
TR 33 B
FairOver: OPOSSUM CREEK
2.0 MI SE DIONA, Cumberland, IL
Built 1965 Load: 24.3 t ADT: 125
TR 158
FairOver: BRUCE CREEK
2 MI SE OF JEWETT, Cumberland, IL
Built 1959 Load: 24.3 t ADT: 100
TR 122
FairOver: STREAM
3 MI N WAPELLA, De Witt, IL
Built 1957 Load: 24.3 t ADT: 50
TR 1(MACON CO)
FairOver: STREAM
4 MI SE OF KENNY, De Witt, IL
Built 1955 Load: 24.3 t ADT: 25
TR 119
FairOver: STREAM
2 MI E OF BIRKBECK, De Witt, IL
Built 1968 Load: 24.3 t ADT: 275
HAUMESSER RD
FairOver: KISHWAUKEE RV
1645N 400E, DeKalb, IL
Built 1968 Load: 24.3 t ADT: 10
SHABBONA GROVE RD
FairOver: BIG INDIAN CREEK
700N 495E, DeKalb, IL
Built 1956 Load: 24.3 t ADT: 375
LASHER ROAD
FairOver: BATTLE CREEK
1150N 1675E, DeKalb, IL
Built 1972 Load: 24.3 t ADT: 50
HINCKLEY RD
FairOver: W BR BIG ROCK CREEK
1015N 1600E, DeKalb, IL
Built 1963 Load: 24.3 t ADT: 1,100
CH-18
FairOver: Drainage Ditch
0.4 MI W OF MURDOCK, Douglas, IL
Built 1929 Load: 24.3 t ADT: 200
TR 161
FairOver: DRAINAGE DITCH
0.8 MI NW HINDSBORO, Douglas, IL
Built 1984 Load: 24.3 t ADT: 125
CH 8(FAS 679)
FairOver: BROUILLETTS CREEK
2 MI E OF IL 1, Edgar, IL
Built 1965 Load: 24.3 t ADT: 250
CH 15(FAS 685)
FairOver: BIG CREEK
4.6 MI S OF IL 16, Edgar, IL
Built 1958 Load: 24.3 t ADT: 150
TR 235A
FairOver: EAST DONICA CREEK
3 MI N KANSAS E .25, Edgar, IL
Built 1968 Load: 24.3 t ADT: 50
CH 1(FAS 678)
FairOver: COAL CREEK
1.5 MI N OF US 150, Edgar, IL
Built 1947 Load: 24.3 t ADT: 675
CH 20(FAS 686)
FairOver: STREAM
3.8 MI S GRANDVIEW, Edgar, IL
Built 1940 Load: 24.3 t ADT: 375
TR 117
FairOver: STREAM
4.5 MI S SCOTTLAND, Edgar, IL
Built 1940 Load: 24.3 t ADT: 75
TR 110
FairOver: DRAINAGE DITCH #7
2 M E .25 M N REDMON, Edgar, IL
Built 1958 Load: 24.3 t ADT: 50
TR 195 B
FairOver: DRAINAGE DITCH #7
2.6 MI E OF REDMON, Edgar, IL
Built 1936 Load: 24.3 t ADT: 350
TR 220
FairOver: S BRANCH CLEAR CREEK
2 MI S OF NEVINS, Edgar, IL
Built 1950 Load: 24.3 t ADT: 50
TR 50
FairOver: DRAINAGE DITCH
1 M E BROCTON 1.25S, Edgar, IL
Built 1920 Load: 24.3 t ADT: 50
TR 247
FairOver: STREAM
1 MI NW OF HUNTER, Edgar, IL
Built 1940 Load: 24.3 t ADT: 50
TR 327
FairOver: STREAM
0.1 MI E OF INCLOSE, Edgar, IL
Built 1926 Load: 24.3 t ADT: 50
TR 363
FairOver: STREAM
4 M S KANSAS E .25 M, Edgar, IL
Built 1926 Load: 24.3 t ADT: 50
TR 133 A
FairOver: SHILOH DRAIN DITCH 3
1 MI SW OF GARLAND, Edgar, IL
Built 1968 Load: 24.3 t ADT: 50
TR 237
FairOver: STREAM
1.8 MI W VERMILION, Edgar, IL
Built 1900 Load: 24.3 t ADT: 350
TR 23
FairOver: STREAM
3.5 MI N OF HUME, Edgar, IL
Built 1940 Load: 24.3 t ADT: 50
FAS-2815
FairOver: INDIAN CREEK
1 MI W BONE GAP, Edwards, IL
Built 1938 Load: 24.3 t ADT: 350
FAS-1884
FairOver: TRIB BUTTER CREEK
2 MI S ALBION, Edwards, IL
Built 1950 Load: 24.3 t ADT: 650
FAS-1710 (CH-24)
FairOver: FULFER CREEK
2.5 MI N MASON, Effingham, IL
Built 1968 Load: 24.3 t ADT: 375
TR-4
FairOver: LITTLE MOCCASIN CK
1.5 MI W MOCCASIN, Effingham, IL
Built 1909 Load: 24.3 t ADT: 125
TR-300
FairOver: LITTLE BISHOP CREEK
1 MI SE ELLIOTSTOWN, Effingham, IL
Built 1909 Load: 24.3 t ADT: 100
TR-14
FairOver: LITTLE MOCCASIN CK
1 MI W MOCCASIN, Effingham, IL
Built 1909 Load: 24.3 t ADT: 50
01900 VIRGINIA ST
FairOver: DIETERICH CREEK
DIETERICH, Effingham, IL
Built 1970 Load: 24.3 t ADT: 150
FAS-715
FairOver: SANDY RUN
2 MI S BROWNSTOWN, Fayette, IL
Built 1934 Load: 24.3 t ADT: 375
TR-96
FairOver: MAGGOT CREEK
1.5 MI E CARLYLE LK, Fayette, IL
Built 1965 Load: 24.3 t ADT: 50
TR-130
FairOver: BEAR CREEK
E CARLYLE GM MGMT AR, Fayette, IL
Built 1930 Load: 24.3 t ADT: 50
TR-272
FairOver: HICKORY CREEK
3 MI SE VANDALIA, Fayette, IL
Built 1966 Load: 24.3 t ADT: 300
TR-279
FairOver: BEAR CREEK
2.5 MI NW CORRECT CN, Fayette, IL
Built 1935 Load: 24.3 t ADT: 75
TR-416
FairOver: TRIB LITTLE HICKORY
2.5 MI NW ST PETER, Fayette, IL
Built 1925 Load: 24.3 t ADT: 50
TR-491
FairOver: TRIB LITTLE HICKORY
5 MI WNW ST PETER, Fayette, IL
Built 1940 Load: 24.3 t ADT: 75
TR-499
FairOver: TRIB LITTLE HICKORY
2 MI NW ST PETER, Fayette, IL
Built 1930 Load: 24.3 t ADT: 50
Showing 5,251-5,300 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 |