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
ILL 96
FairOver: MILL CREEK
0.3MI SE I-172/IL96, Adams, IL
Built 1977 Load: 20.1 t ADT: 2,850
Farm Entr (Ben Fil
FairOver: Indian Creek
2.75mi E Old Ripley, Bond, IL
Built 1951 Load: 20.1 t ADT: 5
US 40 / FAU 9832
FairOver: BRANCH OF BEAVER CR
600 FT W OF IL 127, Bond, IL
Built 1942 Load: 20.1 t ADT: 3,950
FAP-828 (CC-MONT B
FairOver: LITTLE MUDDY OVERFLO
3.5 MI N CLAY CITY, Clay, IL
Built 1957 Load: 20.1 t ADT: 1,600
FAS-2705 (CH-4)
FairOver: BIG MUDDY CREEK
3 MI S INGERHAM, Clay, IL
Built 1939 Load: 20.1 t ADT: 250
STONY ISLAND AVE
FairOver: NORTH CREEK
0.9 M S 186th, Cook, IL
Built 1949 Load: 20.1 t ADT: 3,650
GLIDDEN RD
FairOver: SO BR KISHWAUKEE RV
3250N 850E, DeKalb, IL
Built 1947 Load: 20.1 t ADT: 3,050
TOWER ROAD
FairOver: RICKELSON CREEK
1320N 100E, DeKalb, IL
Built 1955 Load: 20.1 t ADT: 100
TR 200
FairOver: SNAKE CREEK
1 MI NE OF AIRPORT, Edgar, IL
Built 1958 Load: 20.1 t ADT: 50
FAS 1872-DEERING R
FairOver: EWING CREEK
NEAR NE CL OF WF, Franklin, IL
Built 1953 Load: 20.1 t ADT: 1,500
TR 85
FairOver: BIRCH CREEK
7.0 MI NE WHITE HALL, Greene, IL
Built 1970 Load: 20.1 t ADT: 25
TR 226
FairOver: BRANCH OF SPRING CR.
1.3 MI NE DURHAM, Hancock, IL
Built 1950 Load: 20.1 t ADT: 100
TR 274
FairOver: EDWARDS RIVER
7.0 MI SE CAMBRIDGE, Henry, IL
Built 1968 Load: 20.1 t ADT: 10
TOWNSHIP ROAD 290
FairOver: UNNAMED CREEK
2.5 MI N OF NORA, Jo Daviess, IL
Built 1901 Load: 20.1 t ADT: 50
TR 56A
FairOver: ROOKS CREEK
1665 N, 900 E, Livingston, IL
Built 1941 Load: 20.1 t ADT: 25
FAS 443 - CH 16
FairOver: CAMP CREEK
W.CTR-6-T4NR2W, McDonough, IL
Built 1949 Load: 20.1 t ADT: 850
TR 0120
FairOver: BR HORSE CR
5.5 MI NE FARMERSVLE, Montgomery, IL
Built 1971 Load: 20.1 t ADT: 75
TR 158
FairOver: BOLIN BRANCH
4.5 M NE SULLIVAN, Moultrie, IL
Built 1957 Load: 20.1 t ADT: 50
TR 4 A
FairOver: BRUSH CREEK
3 MI SW BETHANY, Moultrie, IL
Built 1960 Load: 20.1 t ADT: 50
TR 74 (11W)
FairOver: RICHLAND CREEK
3.0 MI E P PLAINS, Sangamon, IL
Built 1959 Load: 20.1 t ADT: 200
E. CURRIER ROAD
FairOver: BR OF PECATONICA RIV
1.2 MI E OF IL RT 26, Stephenson, IL
Built 1961 Load: 20.1 t ADT: 50
TR 386
FairOver: STREAM
5 MI SW CHENEYVLE, Vermilion, IL
Built 1968 Load: 20.1 t ADT: 100
FAS 788
FairOver: BR OF NORTH CR
1.8 MI S OF M&I RR, Washington, IL
Built 1941 Load: 20.1 t ADT: 500
CHARLES ST
FairOver: KEITH CREEK
1.5 MI W ALPINE RD, Winnebago, IL
Built 1940 Load: 20.1 t ADT: 14,700
HAMBORG ROAD
FairOver: S KINNIKINNICK CR
0.1 M S BURR OAK RD, Winnebago, IL
Built 1984 Load: 20.1 t ADT: 1,100
State Street SBI 1
FairOver: E Trib to Shoal Crk
0.1 MI W POCAHONTAS, Bond, IL
Built 1912 Load: 20.4 t ADT: 600
TR 138
FairOver: BRANCH OF BEAVER CR
3.0M S GREENVILLE, Bond, IL
Built 1923 Load: 20.4 t ADT: 10
TR 237
FairOver: SPRING BRANCH
2.75 M N KEYESPORT, Bond, IL
Built 1967 Load: 20.4 t ADT: 50
WOODSTOCK RD
FairOver: PISCASAW CREEK
.6 MI E POPLAR GR RD, Boone, IL
Built 1957 Load: 20.4 t ADT: 1,800
TOWNSHIP ROAD 74
FairOver: BR BUREAU CREEK
6 MI. W. OF LAMOILLE, Bureau, IL
Built 1940 Load: 20.4 t ADT: 125
TR 43
FairOver: BUCKHART CREEK
0.75 MI SSE ROBY, Christian, IL
Built 1945 Load: 20.4 t ADT: 25
TR 224
FairOver: LOCUST CREEK
4.5 SE OWANECO, Christian, IL
Built 1900 Load: 20.4 t ADT: 20
CH 26(FAS 1658)
FairOver: N FORK EMBARRASS R
7.3 MI SE CASEY, Clark, IL
Built 1955 Load: 20.4 t ADT: 450
TR-314
FairOver: SUGAR CREEK
0.5 MI E HEATHSVILLE, Crawford, IL
Built 1954 Load: 20.4 t ADT: 50
CH 9 (FAS 547)
FairOver: ROCK CREEK
3 MI E WAYNESVILLE, De Witt, IL
Built 1938 Load: 20.4 t ADT: 325
TR 25
FairOver: N FORK BROUILLETTS C
4 MI NE CHERRY POINT, Edgar, IL
Built 1965 Load: 20.4 t ADT: 75
Patterson Rd/FAS17
FairOver: HURRICANE CREEK
2.8MI N OF WHITEHALL, Greene, IL
Built 1938 Load: 20.4 t ADT: 300
TR 196
FairOver: W BR CROOKED CR
SW-35-T8NR4W, Henderson, IL
Built 1954 Load: 20.4 t ADT: 50
TR 4
FairOver: N POPE CR
1.5 M SE NEW WINDSOR, Henry, IL
Built 1958 Load: 20.4 t ADT: 200
ILL RTE 13
FairOver: TRIB-PILES FORK CRK.
0.1M W.UNIV.MALL ENT, Jackson, IL
Built 1948 Load: 20.4 t ADT: 25,500
TR 336
FairOver: WALNUT CREEK
N.CTR-1-T12NR4E, Knox, IL
Built 1973 Load: 20.4 t ADT: 25
CH 16 ROCK ISLAND
FairOver: UP RR
0.5 MI SW DIXON, Lee, IL
Built 1955 Load: 20.4 t ADT: 2,150
CH 22 ELDENA RD
FairOver: 3 MILE BRANCH TRIBUT
1.8 MI S US 52, Lee, IL
Built 1964 Load: 20.4 t ADT: 300
TR 156
FairOver: DRAINAGE DITCH
3240 N, 1900 E, Livingston, IL
Built 1940 Load: 20.4 t ADT: 50
TR 250
FairOver: DRAINAGE DITCH
3185 N, 3000 E, Livingston, IL
Built 1950 Load: 20.4 t ADT: 25
TR 176
FairOver: LAKE FORK CK TRIB
1 W 1MI S LAKE FORK, Logan, IL
Built 1959 Load: 20.4 t ADT: 100
TR 176
FairOver: LOCAL DRAINAGE
2 E 1 MI S CORNLAND, Logan, IL
Built 1954 Load: 20.4 t ADT: 50
TR 22 (TH-R65)
FairOver: CROW CREEK
T13N-R8E-4PM SEC 1, Marshall, IL
Built 1974 Load: 20.4 t ADT: 25
POWERS CHURCH ROAD
FairOver: MALLARD CREEK
3.92 MI E ILL 145, Massac, IL
Built 1920 Load: 20.4 t ADT: 100
TR 189
FairOver: MDL FK SHOAL CK
4.5 MI N SCHRAM CITY, Montgomery, IL
Built 1974 Load: 20.4 t ADT: 325
Showing 4,601-4,650 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 |