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
I-88 WB
GoodOver: E BR DUPAGE RIVER
0.3M.W.IL-53, DuPage, IL
Built 1958 Load: 40.2 t ADT: 75,650
CH-5
GoodOver: WOLF CREEK
2 MI ESE HOLLAND, Effingham, IL
Built 1993 Load: 40.2 t ADT: 200
ILL 37
GoodOver: STREAM S W.FRANKFORT
SCL WEST FRANKFORT, Franklin, IL
Built 2012 Load: 40.2 t ADT: 7,450
US 24 / IL 9
GoodOver: COPPERAS CR
E.EDGE OF BANNER CL, Fulton, IL
Built 2022 Load: 40.2 t ADT: 7,750
TR 301
GoodOver: TRIB OF WINES
3.25 W. OF OLD KANE, Greene, IL
Built 1995 Load: 40.2 t ADT: 100
CH V16 (Dwight Rd.
GoodOver: Waupecan Creek
0.61 MIS CH-6, Grundy, IL
Built 2015 Load: 40.2 t ADT: 150
FILMAN RD TR-142
GoodOver: TR1B W. FK MAZON RIV
.42 MI S. GARDNER RD, Grundy, IL
Built 1989 Load: 40.2 t ADT: 50
IL 14
GoodOver: TRIB TO LAKEY CREEK
1.8 MI E OF IL 142, Hamilton, IL
Built 2016 Load: 40.2 t ADT: 2,400
IL 92
GoodOver: BIG SLOUGH DITCH
0.7 MI E GRANGE ROAD, Henry, IL
Built 1996 Load: 40.2 t ADT: 1,050
FAP-821 (IL-15)
GoodOver: STREAM
.5 MI W MARKAM CITY, Jefferson, IL
Built 1993 Load: 40.2 t ADT: 3,500
PUMP STA RD/CH 12
GoodOver: OTTER CREEK
0.9 MI W FAS 749, Jersey, IL
Built 1935 Load: 40.2 t ADT: 175
SOUTH WILLOW ROAD
GoodOver: MUDDY PLUM RIVER
5 MI SE STOCKTON, Jo Daviess, IL
Built 2008 Load: 40.2 t ADT: 125
CHICAGO RD
GoodOver: AUX SABLE CK
1.5 MI W OF GROVERD, Kendall, IL
Built 1995 Load: 40.2 t ADT: 350
IL 170
GoodOver: BNSF Railroad
4.7 M N of IL 17, LaSalle, IL
Built 2019 Load: 40.2 t ADT: 1,400
FAS 270 CH 19
GoodOver: First Creek
N 4250 E 315, LaSalle, IL
Built 2014 Load: 40.2 t ADT: 1,100
FAS 1806 (IL 250)
GoodOver: STREAM
0.7 MI W BRIDGEPORT, Lawrence, IL
Built 2017 Load: 40.2 t ADT: 2,050
FAP 332 (IL 1)
GoodOver: BIG SLOUGH
5 MI S LAWRENCEVILLE, Lawrence, IL
Built 2022 Load: 40.2 t ADT: 2,250
TR-188
GoodOver: BRUSHY FORK CREEK
1 MI SE BIRDS, Lawrence, IL
Built 1987 Load: 40.2 t ADT: 50
LINCOLN PKWY.
GoodOver: ICRR
N EDGE LINCOLN, Logan, IL
Built 1996 Load: 40.2 t ADT: 4,950
FAS 1536 (IL 48)
GoodOver: CREEK
2 MI SW OF CISCO, Macon, IL
Built 2000 Load: 40.2 t ADT: 750
IL 255 NB
GoodOver: UPRR
4 mi N of I-270, Madison, IL
Built 1995 Load: 40.2 t ADT: 28,300
TR 64 Norton Road
GoodOver: Turkey Creek
1.5 Mi E of Junction City, Marion, IL
Built 2021 Load: 40.2 t ADT: 200
UNIONVILLE ROAD
GoodOver: CRENSHAW CREEK
3.75 MI E US45, Massac, IL
Built 1956 Load: 40.2 t ADT: 1,150
OLD US 36
GoodOver: SPRING CREEK
2MI E ALEXANDER, Morgan, IL
Built 1997 Load: 40.2 t ADT: 1,000
TR 81B
GoodOver: Jonathan Creek
2 Mi. S. Cadwell, Moultrie, IL
Built 2019 Load: 40.2 t ADT: 150
TR 185A
GoodOver: WHITLEY CREEK
2.5 MI N OF GAYS, Moultrie, IL
Built 2023 Load: 40.2 t ADT: 50
FALCON ROAD
GoodOver: BEAUCOUP CREEK
1.0 MI W OF US 51, Perry, IL
Built 2019 Load: 40.2 t ADT: 50
FAS 940
GoodOver: BIG CREEK #2
1 MI W PERKS, Pulaski, IL
Built 1994 Load: 40.2 t ADT: 350
FAP 332-US 45 (SB)
GoodOver: STREAM
1.5 MI SW ELDORADO, Saline, IL
Built 2002 Load: 40.2 t ADT: 9,550
FAS 1621
GoodOver: LICK CREEK
2.5 N CHATHAM, Sangamon, IL
Built 1973 Load: 40.2 t ADT: 3,700
HILLVIEW ROAD
GoodOver: LITTLE SANDY CREEK
5.5MI S IL106/OLD 36, Scott, IL
Built 1999 Load: 40.2 t ADT: 450
TR 97A
GoodOver: Sand Creek
2.2 Mi. N of Windsor, Shelby, IL
Built 2019 Load: 40.2 t ADT: 50
TR 220
GoodOver: Stream
2.1 Mi. NW Findlay, Shelby, IL
Built 2012 Load: 40.2 t ADT: 10
N HULBERT RD
GoodOver: MUDDY CREEK
5.0 MI SW ORANGEVILL, Stephenson, IL
Built 2021 Load: 40.2 t ADT: 200
FLANSBURG RD
GoodOver: BR OF PECATONICA RV
4.3 MI E LENA, Stephenson, IL
Built 2018 Load: 40.2 t ADT: 150
ILL 3
GoodOver: BIG MUDDY RIVER
AT JACKSON CO LINE, Union, IL
Built 1958 Load: 40.2 t ADT: 1,100
NASH ROAD
GoodOver: TRIB TO BIG CREEK
5 MI SE OF ANNA, Union, IL
Built 2020 Load: 40.2 t ADT: 10
TR 160
GoodOver: PICAYUNE CR
NE-13-T9NR2W, Warren, IL
Built 1982 Load: 40.2 t ADT: 25
SBI 13B (UNMARKED)
GoodOver: BR.L.CRAB ORCHARD CR
.09 mi w Saraville R, Williamson, IL
Built 2012 Load: 40.2 t ADT: 1,600
TR 9
GoodOver: STREAM
4 MI NE OF CORINTH, Williamson, IL
Built 1991 Load: 40.2 t ADT: 100
BLACKHAWK RD
GoodOver: KISHWAUKEE RIVER
S. OF ROCKFORD, Winnebago, IL
Built 1996 Load: 40.2 t ADT: 3,450
ROCKTON ROAD
GoodOver: DRY RUN CREEK
0.3 MI E OF CH68, Winnebago, IL
Built 1976 Load: 40.2 t ADT: 750
FAIRVIEW BL
GoodOver: KEITH CREEK,NORTH BR
0.06 MI N STATE, Winnebago, IL
Built 1955 Load: 40.2 t ADT: 8,050
IL 96
GoodOver: WHITE OAK CREEK
1.6M S CH 41 IN LIMA, Adams, IL
Built 1994 Load: 40.5 t ADT: 2,300
US 24
GoodOver: ROCK CREEK
1.2 MI W FOWLER, Adams, IL
Built 1994 Load: 40.5 t ADT: 4,000
FAS 591 CH-5
GoodOver: TOURNEAR CREEK
2 M SE BURTON, Adams, IL
Built 2009 Load: 40.5 t ADT: 400
FAS 942
GoodOver: CACHE RIVER
ALEX/PULASKI CO LI, Alexander, IL
Built 2004 Load: 40.5 t ADT: 850
FAU 7123(IL 10)
GoodOver: KASKASKIA RIVER
1 MI E BONDVILLE, Champaign, IL
Built 1992 Load: 40.5 t ADT: 3,200
FAP 332(IL 1)
GoodOver: SNYDER CREEK
4 MI N OF WEST UNION, Clark, IL
Built 1992 Load: 40.5 t ADT: 2,400
FAS 1707(US 40)
GoodOver: KETTERING BRANCH
N EDGE MARTINSVILLE, Clark, IL
Built 1995 Load: 40.5 t ADT: 2,000
Showing 23,451-23,500 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 |