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 53
FairOver: TRIB TO DRY FK CR
WEST EDGE SORENTO, Bond, IL
Built 1967 Load: 26.2 t ADT: 125
TR 34
FairOver: W FORK SPOON RIVER
3 MI S OF NEPONSET, Bureau, IL
Built 1961 Load: 26.2 t ADT: 25
CH 22 (FAS 515)
FairOver: STREAM
2.5 MI N OF PENFIELD, Champaign, IL
Built 2014 Load: 26.2 t ADT: 175
CH 12(FAS 522)
FairOver: STREAM
S OF SIDNEY, Champaign, IL
Built 1969 Load: 26.2 t ADT: 950
TR 0207
FairOver: BRUSHY BRANCH
5.0 MI W ASSUMPTION, Christian, IL
Built 1973 Load: 26.2 t ADT: 50
FAU1292 (EUCLID AV
FairOver: SALT CREEK
0.7 M E ILL 53 P18, Cook, IL
Built 1962 Load: 26.2 t ADT: 15,300
IL 72
FairOver: POPLAR CREEK
0.2 M SE I-90, Cook, IL
Built 1939 Load: 26.2 t ADT: 18,800
BECKWITH RD
FairOver: N BR CHICAGO RIVER
0.7 M W HARMS P13, Cook, IL
Built 1951 Load: 26.2 t ADT: 5,800
TR 125
FairOver: TEN MILE CREEK
2 MI NW CLINTON, De Witt, IL
Built 1969 Load: 26.2 t ADT: 50
TR 221
FairOver: STREAM
3 MI S CLINTON, De Witt, IL
Built 1971 Load: 26.2 t ADT: 275
HOUGHTBY RD
FairOver: BIG INDIAN CREEK
800N 295E, DeKalb, IL
Built 1952 Load: 26.2 t ADT: 75
CH 8(FAS 679)
FairOver: S BRANCH BROUILLETTS
1.25 MI E OF IL 1, Edgar, IL
Built 1958 Load: 26.2 t ADT: 250
TR 68 A
FairOver: DOYLES CREEK
4 MI SW OF GRANDVIEW, Edgar, IL
Built 1965 Load: 26.2 t ADT: 50
FAS-2720 (CH-7)
FairOver: HICKORY CREEK
3 MI S ST ELMO, Fayette, IL
Built 1934 Load: 26.2 t ADT: 600
FAS 1452
FairOver: SHAW CR
NW-10-T6NR1E, Fulton, IL
Built 1973 Load: 26.2 t ADT: 25
ILL 108
FairOver: MID TAYLOR CREEK BR
8.8 M E CARROLLTON, Greene, IL
Built 1928 Load: 26.2 t ADT: 1,000
TR 72
FairOver: CHANEY CREEK
2.0 NW ELVASTON, Hancock, IL
Built 1969 Load: 26.2 t ADT: 25
TR 14
FairOver: TRIB SPRING CREEK
.2N ILL54 ON CH8, Iroquois, IL
Built 1972 Load: 26.2 t ADT: 300
TOWNSHIP RD NO 227
FairOver: RUSH CREEK
2 MI W MASSBACH, Jo Daviess, IL
Built 1969 Load: 26.2 t ADT: 75
FAS 924
FairOver: LICK CREEK
NW1/4 SEC 9 T12S,R2E, Johnson, IL
Built 1962 Load: 26.2 t ADT: 175
GRANART ROAD
FairOver: WELCH CREEK
2 MI E BIG ROCK, Kane, IL
Built 1959 Load: 26.2 t ADT: 5,300
I-88 EW TOLLWAY EB
FairOver: BLACKBERRY CR
.5 MI. W OF ILL 47, Kane, IL
Built 1972 Load: 26.2 t ADT: 15,850
I-88 EW TOLLWAY WB
FairOver: BLACKBERRY CR
.5 MI. W OF ILL 47, Kane, IL
Built 1972 Load: 26.2 t ADT: 15,850
TR 41
FairOver: PIKE CREEK
3.5 MI NE MOMENCE, Kankakee, IL
Built 1970 Load: 26.2 t ADT: 350
CH11 PUMP FACTORY
FairOver: FIVE MILE BRANCH
0.5 MI N OF US 30, Lee, IL
Built 1964 Load: 26.2 t ADT: 200
BROOKLYN RD
FairOver: BEACH CREEK
1.2 MI S OGLE CO L, Lee, IL
Built 1961 Load: 26.2 t ADT: 200
MELUGINS GROVE ROA
FairOver: BR OF GREEN RIVER
1.5 M S OF US RT 30, Lee, IL
Built 1962 Load: 26.2 t ADT: 25
CO HWY 29
FairOver: MUD CREEK
4 MI NW OF CORNELL, Livingston, IL
Built 1954 Load: 26.2 t ADT: 150
TR 37
FairOver: TRIB MUD CREEK
1310 E, 2900 N, Livingston, IL
Built 1960 Load: 26.2 t ADT: 25
TR 282A
FairOver: DRAINAGE DITCH
1130 N, 3500 E, Livingston, IL
Built 1964 Load: 26.2 t ADT: 75
JOHNSON SIPING RD
FairOver: DEER CK
3 E .5 MI S LINCOLN, Logan, IL
Built 1970 Load: 26.2 t ADT: 75
TR 253
FairOver: N FK LAKE FK OVERFL
3 S 1 MI W NARITA, Logan, IL
Built 1961 Load: 26.2 t ADT: 50
TR 194
FairOver: SALT CK TRIB
1.5 W 3 MI N MT PLSK, Logan, IL
Built 1970 Load: 26.2 t ADT: 20
TR 221
FairOver: LAKE FORK CK TR 1B
.5 N 1.5 MI E LK FK, Logan, IL
Built 1974 Load: 26.2 t ADT: 50
IL 37
FairOver: RACCOON CR TRB NORTH
.25 MI S ILL-161, Marion, IL
Built 1930 Load: 26.2 t ADT: 4,500
TR 69A (TH-C65)
FairOver: SHAW CREEK
T30N-R1W-3PM SEC 30, Marshall, IL
Built 1966 Load: 26.2 t ADT: 250
FAS 461 CO HWY 4
FairOver: QUIVER DITCH
FOREST CITY CL, Mason, IL
Built 1948 Load: 26.2 t ADT: 500
TR 156
FairOver: FURRER DITCH
1.5 MI NE EASTON, Mason, IL
Built 1972 Load: 26.2 t ADT: 75
TR 519
FairOver: SALT CREEK
2.5 MI W BELLFLOWER, McLean, IL
Built 1967 Load: 26.2 t ADT: 75
TR 117
FairOver: CROOKED CREEK
1.MI SW PLEASANTHILL, McLean, IL
Built 1965 Load: 26.2 t ADT: 225
TR 0050
FairOver: MDL FK SHOP CREEK
6.0 S OF WAGGONER, Montgomery, IL
Built 1900 Load: 26.2 t ADT: 75
TR 284
FairOver: N FORK MAUVAISTERRE
4M NE J-VILLE, Morgan, IL
Built 1976 Load: 26.2 t ADT: 50
ILL 8
FairOver: WARSAW RUN
1.75 MI W OF EDWARDS, Peoria, IL
Built 1996 Load: 26.2 t ADT: 1,850
ILL 8
FairOver: KICKAPOO CR. TRIB.
W. EDGE OF EDWARDS, Peoria, IL
Built 1995 Load: 26.2 t ADT: 2,800
TR 98
FairOver: SANGAMON RIVER TRIB
1.0 MI NE LODGE, Piatt, IL
Built 1961 Load: 26.2 t ADT: 25
TR 428
FairOver: MIDDLE FK MCKEE CR
2.25 MI E PERRY, Pike, IL
Built 1965 Load: 26.2 t ADT: 25
TR 104 (9W)
FairOver: SPRING CREEK
1.5 S FARMINGDALE, Sangamon, IL
Built 1970 Load: 26.2 t ADT: 25
TR 369 11.5S
FairOver: PANTHER CREEK
2.5 MI S OF CHATHAM, Sangamon, IL
Built 1963 Load: 26.2 t ADT: 200
TR 447 17 S
FairOver: BRUSH CREEK
.5 W OF DIVERNON, Sangamon, IL
Built 1965 Load: 26.2 t ADT: 100
TR 498 (12.25 E)
FairOver: GRIFFITH CREEK
1.5 W MECHANICSBURG, Sangamon, IL
Built 1978 Load: 26.2 t ADT: 125
Showing 6,051-6,100 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.