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 614
GoodOver: LITTLE INDIAN CREEK
0.5 MI NO PRENTICE, Morgan, IL
Built 1981 Load: 36.0 t ADT: 1,500
FAP 323 (US 36)
GoodOver: HAMMOND MUTUAL DITCH
.5 MI E OF HAMMOND, Moultrie, IL
Built 1999 Load: 36.0 t ADT: 2,750
IL 38
GoodOver: DRAINAGE DITCH
0.5 MI W OF ROCHELLE, Ogle, IL
Built 1993 Load: 36.0 t ADT: 3,100
FREEPORT RD
GoodOver: ELKHORN CREEK
4.0 MI SW FORRESTON, Ogle, IL
Built 1961 Load: 36.0 t ADT: 1,400
FLAGG ROAD
GoodOver: DRY RUN CREEK
1.5 MI NW ROCHELLE, Ogle, IL
Built 2010 Load: 36.0 t ADT: 5,100
ILL 154
GoodOver: BONNIE CREEK
2.2 MI.E OF150, Perry, IL
Built 1992 Load: 36.0 t ADT: 2,150
ILL 106
GoodOver: TRIB KISER CREEK
1.75MI SE OF BARRY, Pike, IL
Built 1986 Load: 36.0 t ADT: 1,600
US 54
GoodOver: SIX MILE CREEK
.3M SW IL 106, Pike, IL
Built 1997 Load: 36.0 t ADT: 2,900
TR-47A (Wilson Rd)
GoodOver: Trib to Plum Creek
2 Mi S of Tilden, Randolph, IL
Built 2017 Load: 36.0 t ADT: 200
ILL 92
GoodOver: STREAM
.02 MI E ARCHER DR, Rock Island, IL
Built 1985 Load: 36.0 t ADT: 10,900
OLD IL 92
GoodOver: DRAINAGE DITCH
1 MI. W. OF I-88, Rock Island, IL
Built 1999 Load: 36.0 t ADT: 650
FAS 606
GoodOver: N PLUM CK
1.5 MI SE EXETER, Scott, IL
Built 1983 Load: 36.0 t ADT: 375
OLD LINCOLN TRAIL
GoodOver: HOLLOW CREEK
.1 MI E ILL 161, St. Clair, IL
Built 1977 Load: 36.0 t ADT: 2,600
IL 15 - FA 817
GoodOver: TRIB OF L MUD CREEK
0.5 NW OF ST. LIBORY, St. Clair, IL
Built 1990 Load: 36.0 t ADT: 3,450
ILL 26
GoodOver: TRIB. OF CEDAR CREEK
S EDGE OF CEDARVILLE, Stephenson, IL
Built 1982 Load: 36.0 t ADT: 6,500
FAS 464-CH 1
GoodOver: TRIB TO MACKINAW RIV
SE-10-T23NR4W, Tazewell, IL
Built 1996 Load: 36.0 t ADT: 1,550
FAI 57 RAMP 219 ON
GoodOver: STREAM
0.2 MI E DONGOLA, Union, IL
Built 1959 Load: 36.0 t ADT: 175
TR 392
GoodOver: PAINTER CREEK
N EDGE OF BISMARCK, Vermilion, IL
Built 1987 Load: 36.0 t ADT: 50
FAP 332(IL 1)
GoodOver: STREAM
1.75 MI E OF HENNING, Vermilion, IL
Built 1993 Load: 36.0 t ADT: 4,550
FAS 499(CH 23)
GoodOver: LITTLE VERMILION RIV
E OF GEORGETOWN, Vermilion, IL
Built 1948 Load: 36.0 t ADT: 1,650
IL 9(FAP 697)
GoodOver: FOUNTAIN CREEK
.8 MI E OF CH 10, Vermilion, IL
Built 1984 Load: 36.0 t ADT: 2,050
TR 133A
GoodOver: STONY CREEK DITCH
.25 MI W STATE LINE, Vermilion, IL
Built 1988 Load: 36.0 t ADT: 75
CAMERON RD-FAS 407
GoodOver: CEDAR CREEK
SW-23-T11NR1W, Warren, IL
Built 1979 Load: 36.0 t ADT: 375
IL 40 LOCUST ST
GoodOver: STREAM
.1 MI S LYNN BLVD, Whiteside, IL
Built 1987 Load: 36.0 t ADT: 11,100
PLAINFIEL_NAPERVIL
GoodOver: DUPAGE RIVER
0.6M N OF 111TH ST, Will, IL
Built 2003 Load: 36.0 t ADT: 14,200
CH 13-S MARKET ST
GoodOver: TRIB CRAB ORCHARD CR
SCL OF MARION, Williamson, IL
Built 1986 Load: 36.0 t ADT: 3,550
IL 251
GoodOver: DRAINAGE DITCH
1.5 MI S US20 BYPASS, Winnebago, IL
Built 2019 Load: 36.0 t ADT: 7,600
CUNNINGHAM RD
GoodOver: SO BR KENT CREEK
0.25 MI E PIERPONT, Winnebago, IL
Built 2011 Load: 36.0 t ADT: 2,250
IL 61
GoodOver: THURMAN CREEK
.2M E LORAINE RD, Adams, IL
Built 1996 Load: 36.3 t ADT: 750
IL 78
GoodOver: SANGAMON RIVER
.5 N CHANDLERVILLE, Cass, IL
Built 2011 Load: 36.3 t ADT: 1,450
TR 360
GoodOver: CROOKED CREEK
3.4 MI SE WEAVER, Clark, IL
Built 1909 Load: 36.3 t ADT: 100
TR 191
GoodOver: East Mill Creek
3 Mi. SW Marshall, Clark, IL
Built 2020 Load: 36.3 t ADT: 150
FAP 328 (US 45)
GoodOver: GROVE CREEK
1.5 MI S LOUISVILLE, Clay, IL
Built 2009 Load: 36.3 t ADT: 5,200
FAS-719 (CH-7)
GoodOver: CROOKED CREEK
1 MI W IOLA, Clay, IL
Built 1936 Load: 36.3 t ADT: 450
FAP-781 (ILL-33)
GoodOver: BRUSH CREEK
1.5 MI E OBLONG, Crawford, IL
Built 1996 Load: 36.3 t ADT: 5,400
TR 150
GoodOver: DRAINAGE DITCH
1.4 MI NW HINDSBORO, Douglas, IL
Built 1988 Load: 36.3 t ADT: 50
FAS-1884 (CH-6)
GoodOver: TRIB HARPER CREEK
4 MI S ALBION, Edwards, IL
Built 1984 Load: 36.3 t ADT: 600
TR-89
GoodOver: LILY CREEK
2.5 MI N DEXTER, Effingham, IL
Built 1989 Load: 36.3 t ADT: 75
TR 266
GoodOver: LUCAS CREEK
1.7 MI SW EBERLE, Effingham, IL
Built 2012 Load: 36.3 t ADT: 50
FAP 752 (US 40)
GoodOver: CAMP CREEK
.75 MI E US 51, Fayette, IL
Built 2010 Load: 36.3 t ADT: 3,950
TR 99 DRUMMER
GoodOver: W BR DRUMMER CR
330E 300N, Ford, IL
Built 1975 Load: 36.3 t ADT: 125
FAS 873-AKIN RD
GoodOver: LITTLE BESSIE CK
850N-1860E, Franklin, IL
Built 1980 Load: 36.3 t ADT: 850
FAS 2870
GoodOver: ICG RAILROAD
NE Q SEC 15 T75 R4E, Franklin, IL
Built 1985 Load: 36.3 t ADT: 400
KEDRON RD
GoodOver: SUGARCAMP CREEK
4.0MI N LEAMINGTON, Gallatin, IL
Built 2018 Load: 36.3 t ADT: 10
Hillview Eldred Ro
GoodOver: Robley Hollow
2.7 M N OF ELDRED, Greene, IL
Built 1940 Load: 36.3 t ADT: 400
TR-129
GoodOver: APPLE CREEK
4 MI SE WHITE HALL, Greene, IL
Built 1890 Load: 36.3 t ADT: 25
CH 37, Livingston
GoodOver: REDDICK RUN
0.25 Mi E Reddick, Grundy, IL
Built 2013 Load: 36.3 t ADT: 350
FAP-776 (ILL-242)
GoodOver: STREAM
5 MI S WAYNE CO LN, Hamilton, IL
Built 2011 Load: 36.3 t ADT: 1,250
FAS 423 / CH 15
GoodOver: RILEY'S CREEK
.5MI S POWELLTON, Hancock, IL
Built 1994 Load: 36.3 t ADT: 300
C.H. 33
GoodOver: SLATER CREEK
1 M W BOWEN, Hancock, IL
Built 2003 Load: 36.3 t ADT: 850
Showing 22,501-22,550 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 |