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 24 EB
GoodOver: NEW COLUMBIA DITCH
2 MI S JOHNSON C L, Massac, IL
Built 1971 Load: 42.1 t ADT: 10,600
IL 336
GoodOver: WILDLIFE CROSSING
2.43MI N of US 136, McDonough, IL
Built 2016 Load: 42.1 t ADT: 1,600
AIRPORT RD. FAU 64
GoodOver: SUGAR CREEK
1.7 MI NE 9 & 55, McLean, IL
Built 1964 Load: 42.1 t ADT: 3,650
TR 133
GoodOver: TRIB TO PARKER RUN
SW-2-T14NR1W, Mercer, IL
Built 1998 Load: 42.1 t ADT: 50
TR 206
GoodOver: POPE CREEK
SW-33-T14NR2W, Mercer, IL
Built 1984 Load: 42.1 t ADT: 25
TR 147 Faust Rd
GoodOver: Horse Ck
TR 147 1 mile N of Ames, Monroe, IL
Built 2022 Load: 42.1 t ADT: 125
IL 127
GoodOver: LITTLE BEAR CREEK
2.1 M N BOND CO LINE, Montgomery, IL
Built 2008 Load: 42.1 t ADT: 2,450
FILLMORE TO RT 185
GoodOver: DRY FORK
1.1 MI S OF FILLMORE, Montgomery, IL
Built 2002 Load: 42.1 t ADT: 650
FAS 2936 (UNMARKED
GoodOver: CACHE RIVER OVERFLOW
0.5 MI S OF ULLIN, Pulaski, IL
Built 1983 Load: 42.1 t ADT: 950
IL ROUTE 154
GoodOver: TRIB TO HORSE CREEK
2.4 MI E OF REDBUD, Randolph, IL
Built 1933 Load: 42.1 t ADT: 3,900
MOLINE RD
GoodOver: DRAINAGE DITCH
3 MI. SW. HILLSDALE, Rock Island, IL
Built 1999 Load: 42.1 t ADT: 600
ILL 54
GoodOver: SANGAMON RIVER
SW EDGE SPAULDING, Sangamon, IL
Built 1997 Load: 42.1 t ADT: 6,000
FAS 607
GoodOver: PLUM CREEK
.25 MI S. OF MERRIT, Scott, IL
Built 1973 Load: 42.1 t ADT: 175
FURROW RD - TR 141
GoodOver: LOST CREEK
S.CTR-26-T24NR5W, Tazewell, IL
Built 2022 Load: 42.1 t ADT: 450
TR 87
GoodOver: BR JOHNS CREEK
4 MI S of Little York, Warren, IL
Built 2021 Load: 42.1 t ADT: 75
IL 59
GoodOver: DU PAGE RIVER
2.8 M S OF IL 126, Will, IL
Built 2008 Load: 42.1 t ADT: 28,700
BRIDGE ST
GoodOver: DU PAGE RIVER
CHANNAHON, Will, IL
Built 2000 Load: 42.1 t ADT: 700
FAS 908
GoodOver: LITTLE HURRICANE CR
0.3 MI E OF COLP, Williamson, IL
Built 2001 Load: 42.1 t ADT: 5,700
SKYHAWK RD
GoodOver: UNNAMED CREEK
8 MI SE CARBONDALE, Williamson, IL
Built 2013 Load: 42.1 t ADT: 650
BLOMBERG RD.
GoodOver: S BR KISHWAUKEE RIVR
AT RIVER ROAD, Winnebago, IL
Built 2003 Load: 42.1 t ADT: 725
HORACE AVE
GoodOver: KENT CREEK
0.7 MI S OF STATE ST, Winnebago, IL
Built 2006 Load: 42.1 t ADT: 1,350
US 6/34
GoodOver: DRAINAGE DITCH
2.5 MI. W. WYANET, Bureau, IL
Built 1993 Load: 42.4 t ADT: 2,000
FAP 836(IL 49)
GoodOver: STREAM
S EDGE OF HOMER, Champaign, IL
Built 1992 Load: 42.4 t ADT: 1,350
FAP 326(IL 47)
GoodOver: STREAM
2 MI N OF US 136, Champaign, IL
Built 1991 Load: 42.4 t ADT: 3,450
TR 355
GoodOver: TRIB TO ELM CREEK
2.5 MI SE FLORA, Clay, IL
Built 2012 Load: 42.4 t ADT: 50
ILL 161
GoodOver: CROOKED CREEK
8.6 M E IL 127, Clinton, IL
Built 2019 Load: 42.4 t ADT: 6,100
FAU 7711 (CH 27)
GoodOver: KICKAPOO CREEK
0.5 Mi. SE Mattoon, Coles, IL
Built 2021 Load: 42.4 t ADT: 2,350
MS-4025 WHITEHALL
GoodOver: ADDISON CREEK
W OF WOLF RD, Cook, IL
Built 1961 Load: 42.4 t ADT: 500
HELEN RD
GoodOver: W BR SALT CREEK
.68M W OF HICKS RD, Cook, IL
Built 2001 Load: 42.4 t ADT: 1,200
IL 48 (FAP 760)
GoodOver: CREEK
.4 MI N IL 10, De Witt, IL
Built 2008 Load: 42.4 t ADT: 1,100
US 30 FAP 573
GoodOver: INDIAN CREEK
2.8 MI. W. OF IL 23, DeKalb, IL
Built 1993 Load: 42.4 t ADT: 2,600
US 36(FAP 323)
GoodOver: LAKE FORK RIVER
W EDGE OF ATWOOD, Douglas, IL
Built 1987 Load: 42.4 t ADT: 3,950
TR 187 A
GoodOver: DRAINAGE DITCH
2 MI SW OF HINDSBORO, Douglas, IL
Built 2010 Load: 42.4 t ADT: 50
FAS 717
GoodOver: TRIB TO LITTLE HICKO
4.0 MILES WEST ST. P, Fayette, IL
Built 2021 Load: 42.4 t ADT: 350
IL RTE. 106
GoodOver: SEMINARY CREEK
1 MI N OF WHITEHALL, Greene, IL
Built 1995 Load: 42.4 t ADT: 1,200
FAS 1425
GoodOver: TRIB OF W FK BEAR CR
2 MI SE ELVASTON, Hancock, IL
Built 1994 Load: 42.4 t ADT: 325
FAP 782 ILL 1
GoodOver: TRIB TO ROCK CREEK
4 MI S GALLTAIN CO., Hardin, IL
Built 2016 Load: 42.4 t ADT: 1,100
ULAH ROAD (CH 21)
GoodOver: DRAINAGE DITCH
N. EDGE OF ULAH, Henry, IL
Built 1995 Load: 42.4 t ADT: 150
CH-11 N Marion St
GoodOver: Trib to Crab Orchard
0.06MI N OF FISHER, Jackson, IL
Built 2010 Load: 42.4 t ADT: 500
E. Boskydell Road
GoodOver: Trib. to Sycamore Cr
1.25m E G City Rd, Jackson, IL
Built 2012 Load: 42.4 t ADT: 900
E MALECKI ROAD
GoodOver: TRIB TO HORSE CREEK
6.5 MI N OF BLUFORD, Jefferson, IL
Built 2016 Load: 42.4 t ADT: 100
JERICHO ROAD
GoodOver: BLACKBERRY CREEK
3.2 MI E RTE 47, Kane, IL
Built 2015 Load: 42.4 t ADT: 6,650
TR 382
GoodOver: COVEL CREEK
E. 23rd E. 2285, LaSalle, IL
Built 2019 Load: 42.4 t ADT: 25
FAP 332 (IL 1)
GoodOver: EMBARRAS RIVER
NCL LAWRENCEVILLE, Lawrence, IL
Built 2017 Load: 42.4 t ADT: 3,550
US 30
GoodOver: STREAM
1.3 MI. E. OF US 52, Lee, IL
Built 1992 Load: 42.4 t ADT: 1,400
FAS 2057/CH 34
GoodOver: CREEK
2.5MI NW MANVILLE, Livingston, IL
Built 2022 Load: 42.4 t ADT: 225
TURTLE DRIVE
GoodOver: TURTLE CREEK
.03MECOUNTRYSIDE LN, Livingston, IL
Built 1994 Load: 42.4 t ADT: 150
ILL 108 & 111
GoodOver: LICK CREEK
0.5 MI N JCT IL 108, Macoupin, IL
Built 1930 Load: 42.4 t ADT: 1,450
CH 42 Pin Oak Road
GoodOver: Little Mooney Creek
0.5 Mi E Edwardsvill, Madison, IL
Built 2020 Load: 42.4 t ADT: 200
US 50
GoodOver: CROOKED CREEK
.25 MI E SALEM, Marion, IL
Built 1952 Load: 42.4 t ADT: 4,850
Showing 23,851-23,900 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 |