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 3
GoodOver: CLIFTY CREEK
2.76 MI E US 45, Massac, IL
Built 1993 Load: 35.0 t ADT: 50
Jankowski Rd/ TR85
GoodOver: Slough Creek
0.7M W IL47, McHenry, IL
Built 1975 Load: 35.0 t ADT: 175
TR 264
GoodOver: CAMP CREEK
E.CTR-20-T15NR1W, Mercer, IL
Built 2019 Load: 35.0 t ADT: 125
TR130 LL ROAD
GoodOver: HORSE CREEK
SEC 28 RD DIST 3, Monroe, IL
Built 1978 Load: 35.0 t ADT: 150
TR 371
GoodOver: Coffeen Lake
0.9 mi W Coffeen, Montgomery, IL
Built 2019 Load: 35.0 t ADT: 200
FAS 1622
GoodOver: HENKLE CREEK
0.11 mi E 4th St, Sangamon, IL
Built 1990 Load: 35.0 t ADT: 500
FAS 1581 (CH 13)
GoodOver: Horney Branch
2.41mi W. of US 24, Schuyler, IL
Built 2018 Load: 35.0 t ADT: 125
TR 85
GoodOver: ROBINSON CREEK
.9 MI NE WESTERVELT, Shelby, IL
Built 1992 Load: 35.0 t ADT: 50
IL RTE 73
GoodOver: CREEK
.04MI N OF WIRE RD, Stephenson, IL
Built 2008 Load: 35.0 t ADT: 1,250
FAS 496 (CH 14)
GoodOver: Stream
5.5 MI Eof Rossville, Vermilion, IL
Built 2013 Load: 35.0 t ADT: 150
FAP 332 (IL 1)
GoodOver: CRAWFISH CREEK
2 MI S PATTON, Wabash, IL
Built 2016 Load: 35.0 t ADT: 3,500
TR 206
GoodOver: SLUG RUN
NE-16-T10NR1W, Warren, IL
Built 1977 Load: 35.0 t ADT: 50
TR 132
GoodOver: PICAYUNE CREEK
N.CTR-11-T9NR2W, Warren, IL
Built 1973 Load: 35.0 t ADT: 50
I- 55 EAST FRNT RD
GoodOver: SUNNYLAND DRAIN
1.8 M S OF US 30, Will, IL
Built 1956 Load: 35.0 t ADT: 2,800
MILLER AV.
GoodOver: HICKORY CREEK
.6 MI E RICHARD ST, Will, IL
Built 1935 Load: 35.0 t ADT: 1,400
CH 13-S.MARKET ST
GoodOver: MULE CREEK
AT SCL OF MARION, Williamson, IL
Built 1986 Load: 35.0 t ADT: 3,550
WHEELER RD
GoodOver: UNNAMED CREEK
AT YALE BRIDGE RD, Winnebago, IL
Built 1990 Load: 35.0 t ADT: 450
US 24
GoodOver: WALNUT FORK CREEK
.7MI E CLAYTON, Adams, IL
Built 1994 Load: 35.3 t ADT: 2,800
I-70 EB
GoodOver: BNSFRR
2.9 MI E OF ILL 127, Bond, IL
Built 1965 Load: 35.3 t ADT: 11,400
I-70 WB
GoodOver: BNSFRR
2.9 MI E OF ILL 127, Bond, IL
Built 1966 Load: 35.3 t ADT: 11,400
US 6/34 FAP 613
GoodOver: DEVIL'S SLOUGH DITCH
1.6 MI W OF IL 40, Bureau, IL
Built 2002 Load: 35.3 t ADT: 2,400
IL 54
GoodOver: SANG. RIVER
5 MI N OF BELLFLOWER, Champaign, IL
Built 1992 Load: 35.3 t ADT: 1,100
FAS 693/CH17
GoodOver: UNNAMED STREAM
1.5 MI W YORK, Clark, IL
Built 2008 Load: 35.3 t ADT: 200
IL 161
GoodOver: KASKASKIA R OVERFLOW
2.6 M EAST BARTELSO, Clinton, IL
Built 1994 Load: 35.3 t ADT: 2,250
IL 59 (SUTTON RD)
GoodOver: POPLAR CREEK
0.4 M N IL 19, Cook, IL
Built 1997 Load: 35.3 t ADT: 36,200
DIVISION ST
GoodOver: CAL SAG CHANNEL
0.2M.S.VERMONT ST P4, Cook, IL
Built 1964 Load: 35.3 t ADT: 2,600
FAP-781 (ILL-33)
GoodOver: STREAM
0.5 MI W GORDON JCT, Crawford, IL
Built 1995 Load: 35.3 t ADT: 4,850
CH 3
GoodOver: DRAINAGE DITCH
1.2 MI W OF NEWMAN, Douglas, IL
Built 1900 Load: 35.3 t ADT: 75
HOBSON RD
GoodOver: W BR DUPAGE RIVER
0.1 MI E WASHNGTN BL, DuPage, IL
Built 1998 Load: 35.3 t ADT: 4,725
I-88 WB
GoodOver: SALT CREEK
1.3 M NE OF ILL 83, DuPage, IL
Built 1958 Load: 35.3 t ADT: 59,550
I-88 E-W CONNECTOR
GoodOver: SALT CREEK
0.25MI E OF IL 83, DuPage, IL
Built 2008 Load: 35.3 t ADT: 8,100
FAS-1884 (CH-6)
GoodOver: BUTTER CREEK
0.5 MI SW ALBION, Edwards, IL
Built 1983 Load: 35.3 t ADT: 650
TR-256
GoodOver: SALT CREEK
0.5 MI W TEUTOPOLIS, Effingham, IL
Built 1997 Load: 35.3 t ADT: 225
FAS1346 CH5 LEHIGH
GoodOver: STREAM
1570E, 100N, Ford, IL
Built 2008 Load: 35.3 t ADT: 200
FAS 873
GoodOver: OVFL LIT BESSIE CK
AKIN RD, Franklin, IL
Built 1980 Load: 35.3 t ADT: 1,000
CS 1000 (BENTON)
GoodOver: TRIB TO SUGAR CREEK
N WEST CITY, Franklin, IL
Built 1900 Load: 35.3 t ADT: 1,950
FAP-849 (ILL-142)
GoodOver: STREAM
.5 MI S DELAFIELD, Hamilton, IL
Built 1993 Load: 35.3 t ADT: 2,700
FAP-849 (ILL-142)
GoodOver: STREAM
1.3 MI NW MCLEANSBOR, Hamilton, IL
Built 1999 Load: 35.3 t ADT: 2,700
IL 9/IL 96
GoodOver: OPPOSUM CR
.20 M W PONTOOSUC, Hancock, IL
Built 2008 Load: 35.3 t ADT: 1,550
CH 9 (RARITAN ROAD
GoodOver: TRIB TO HONEY CR
1.5 MI W OF RARITAN, Henderson, IL
Built 1956 Load: 35.3 t ADT: 725
US 6
GoodOver: SPRING CREEK TRIB.
1.5 MI W OF ATKINSON, Henry, IL
Built 1993 Load: 35.3 t ADT: 2,400
US 150
GoodOver: UNNAMED STREAM
2.5 MI. S. OF ORION, Henry, IL
Built 1995 Load: 35.3 t ADT: 2,950
TR 152
GoodOver: EDWARDS RIVER
2.0 MI SW CAMBRIDGE, Henry, IL
Built 1978 Load: 35.3 t ADT: 50
FAS 326 BRYCE RD
GoodOver: JEFFERSON CREEK
1.04 MI S OF FAS 323, Iroquois, IL
Built 1988 Load: 35.3 t ADT: 475
US 24
GoodOver: DRAINAGE DITCH
.05 MILE E OF ILL 49, Iroquois, IL
Built 1994 Load: 35.3 t ADT: 4,500
FAS 329 CH-10
GoodOver: TRIB. PIGEON CR
1.39 MI E OF ILL 49, Iroquois, IL
Built 1985 Load: 35.3 t ADT: 500
FAS 912 CH 9
GoodOver: TALBOT HOLLOW
SW 1/4 SEC 26-9-4, Jackson, IL
Built 1983 Load: 35.3 t ADT: 225
FAP-95 (ILL-33)
GoodOver: TRIB LAWS CREEK
2.5 MI E WHEELER, Jasper, IL
Built 1993 Load: 35.3 t ADT: 5,600
W COUNCIL HILL ROA
GoodOver: GALENA RIVER
3 MI N OF GALENA, Jo Daviess, IL
Built 1970 Load: 35.3 t ADT: 525
ILLINOIS AVE
GoodOver: E BR FOX RIVER
700 FT W ILL RT 25, Kane, IL
Built 1949 Load: 35.3 t ADT: 13,200
Showing 22,301-22,350 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 |