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
CH-2
FairOver: RACCOON CREEK
4.5 MI E HELENA, Lawrence, IL
Built 1965 Load: 27.9 t ADT: 200
CH 19 MORGAN RD
FairOver: GREEN RIVER
1.6 MI S AMBOY RD, Lee, IL
Built 1958 Load: 27.9 t ADT: 275
CH11 PUMP FACTORY
FairOver: FIVE MILE BRANCH TRI
1.8 MI S OF US 30, Lee, IL
Built 1959 Load: 27.9 t ADT: 125
FAS 1362 CH 8
FairOver: PIKE CREEK
3.0 MI W OCOYA, Livingston, IL
Built 1953 Load: 27.9 t ADT: 400
TR 95
FairOver: TRIB SHORT POINT CR
535 E, 2200 N, Livingston, IL
Built 1927 Load: 27.9 t ADT: 25
TR 107
FairOver: DITCH MOLE
185 E, 2100 N, Livingston, IL
Built 1930 Load: 27.9 t ADT: 50
TR 132
FairOver: DITCH
1305 N, 1700 E, Livingston, IL
Built 1965 Load: 27.9 t ADT: 50
I-55 W Frontage Rd
FairOver: UPRR
N OF NEW DOUGLAS RD, Madison, IL
Built 1939 Load: 27.9 t ADT: 150
TR 171
FairOver: SW MASON CITY DITCH
1.5M SW MASON CITY, Mason, IL
Built 1983 Load: 27.9 t ADT: 175
TR 136A
FairOver: N HENDERSON CR
SW-20-T13NR3W, Mercer, IL
Built 1974 Load: 27.9 t ADT: 25
TR 169
FairOver: SPRING CRK
3 NE OF ALEXANDER, Morgan, IL
Built 1961 Load: 27.9 t ADT: 75
TR 314
FairOver: TERRE CRK.
4.5 MI N W ALEXANDER, Morgan, IL
Built 1958 Load: 27.9 t ADT: 75
US 51
FairOver: HALF-MILE CREEK
S OF ILL 14, Perry, IL
Built 1921 Load: 27.9 t ADT: 6,350
TR 195
FairOver: LAKE FORK
2.5 MI NW OF ATWOOD, Piatt, IL
Built 1959 Load: 27.9 t ADT: 75
TR 45
FairOver: GRAND PIERRE CREEK TRIB
NW1/4 S8T12SR7E, Pope, IL
Built 1989 Load: 27.9 t ADT: 29
0270 0 6145
FairOver: SUGAR CREEK
1.70 MI. S AUBURN, Sangamon, IL
Built 1969 Load: 27.9 t ADT: 1,200
TR 298
FairOver: BRUSH CREEK
2.0 MI E OF DIVERNON, Sangamon, IL
Built 1971 Load: 27.9 t ADT: 100
FAP 774 (ILL 128)
FairOver: STREAM
2 MI N OF COWDEN, Shelby, IL
Built 1928 Load: 27.9 t ADT: 2,500
TR 60
FairOver: STREAM
3 MI NW OFTOWER HILL, Shelby, IL
Built 1909 Load: 27.9 t ADT: 50
FARWELL BR. RD.
FairOver: PINK CREEK
3.5 MI NE RIDOTT, Stephenson, IL
Built 1971 Load: 27.9 t ADT: 350
SO WALNUT ROAD
FairOver: CRANES GROVE CREEK
2.0 MI S FREEPORT, Stephenson, IL
Built 1970 Load: 27.9 t ADT: 50
N HENDERSON ROAD
FairOver: BRUSH CREEK
1.5 MI SE ORANGEVILL, Stephenson, IL
Built 1957 Load: 27.9 t ADT: 125
WAGONSELLER RD-TR6
FairOver: MACKINAW RIVER
N.CTR-17-T23NR5W, Tazewell, IL
Built 1961 Load: 27.9 t ADT: 900
NICHOLS RD - TR 25
FairOver: DRAINAGE DITCH
SE COR-2-T22NR5W, Tazewell, IL
Built 1900 Load: 27.9 t ADT: 50
TR 19
FairOver: CREEK
1.1M NW JCT.FAS 1911, Union, IL
Built 1982 Load: 27.9 t ADT: 100
FAS 1343(CH 41)
FairOver: N FORK VERMILION RIV
N OF CHENEYVILLE, Vermilion, IL
Built 1955 Load: 27.9 t ADT: 175
FAS-809
FairOver: STREAM
0.25 MI N FRIENDSVIL, Wabash, IL
Built 1932 Load: 27.9 t ADT: 1,000
TR-328
FairOver: CAMEL CREEK
0.5 MI NW RINARD, Wayne, IL
Built 1909 Load: 27.9 t ADT: 100
SAND ROAD
FairOver: SPRING CREEK
2.25 MI NW OF ERIE, Whiteside, IL
Built 1964 Load: 27.9 t ADT: 400
SHIRLEY ROAD
FairOver: BR S BR KISHWAUKEE R
0.5 MI N EDSON ROAD, Winnebago, IL
Built 1963 Load: 27.9 t ADT: 75
WEMPLETOWN ROAD
FairOver: N FORK KENT CREEK
0.8 MI N AUBURN ROAD, Winnebago, IL
Built 1970 Load: 27.9 t ADT: 75
TR 103
FairOver: PANTHER CR
1.5 N PANOLA, Woodford, IL
Built 1959 Load: 27.9 t ADT: 75
FAI 57
FairOver: MISSISSIPPI RIVER
I-57 AT CAIRO, Alexander, IL
Built 1978 Load: 28.2 t ADT: 13,700
CH 7
FairOver: MCKEE CREEK
2 MI W VERSAILLES, Brown, IL
Built 1968 Load: 28.2 t ADT: 250
FAS 575
FairOver: CLARY CREEK
6 MI N NEWMANSVILLE, Cass, IL
Built 1958 Load: 28.2 t ADT: 600
FAP 326 (IL 47)
FairOver: CAMP CREEK
1 MI N I-72 INT, Champaign, IL
Built 1933 Load: 28.2 t ADT: 4,800
TR 236
FairOver: STREAM
1.7 MI NW SIDNEY, Champaign, IL
Built 1974 Load: 28.2 t ADT: 100
TR 173
FairOver: BRUSHY BR.
5MI S STONINGTON, Christian, IL
Built 1951 Load: 28.2 t ADT: 20
TR 263
FairOver: OPPOSSUM CK.
2.5 MI SW OF PANA, Christian, IL
Built 1895 Load: 28.2 t ADT: 50
TR 92
FairOver: STREAM
2 MI NW WAPELLA, De Witt, IL
Built 1969 Load: 28.2 t ADT: 50
TR 14
FairOver: STREAM
6.5 MI S WAYNESVILLE, De Witt, IL
Built 1974 Load: 28.2 t ADT: 25
TR 171
FairOver: STREAM
1 MI SE MIDLAND CITY, De Witt, IL
Built 1975 Load: 28.2 t ADT: 75
TR 29
FairOver: STREAM
1 MI NE FARMER CITY, De Witt, IL
Built 1975 Load: 28.2 t ADT: 300
CH19 PIPER THAWVIL
FairOver: N FK VERMILION R
2110N,1700E, Ford, IL
Built 1959 Load: 28.2 t ADT: 50
TR 91A BUTTON
FairOver: STREAM
2770E,500N, Ford, IL
Built 1968 Load: 28.2 t ADT: 75
FAS 740 CH 6
FairOver: BEAR CREEK
950N;1600E, Greene, IL
Built 2006 Load: 28.2 t ADT: 250
TR 239
FairOver: W FK OF BEAR CREEK
1.5 S ELVASTON, Hancock, IL
Built 1975 Load: 28.2 t ADT: 50
FAS 1425
FairOver: CAMP CREEK
1.5 SW COLUSA, Hancock, IL
Built 1970 Load: 28.2 t ADT: 20
ULAH ROAD
FairOver: EDWARDS RIVER
1.2 MI S JCT ILL 81, Henry, IL
Built 1933 Load: 28.2 t ADT: 150
TR 210
FairOver: DRAINAGE DITCH
.5 MI N. CH 7, Iroquois, IL
Built 1916 Load: 28.2 t ADT: 75
Showing 6,351-6,400 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.