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-711
GoodOver: DISMAL CREEK
2.5 MI NW LACLEDE, Fayette, IL
Built 1939 Load: 47.3 t ADT: 800
TR 46
GoodOver: RACCOON CREEK
1.5 MI E MULBERRY GR, Fayette, IL
Built 2007 Load: 47.3 t ADT: 50
US 45
GoodOver: Big Four Ditch
3.04 M S of IL 9, Ford, IL
Built 2018 Load: 47.3 t ADT: 3,200
FAI 080 (EB & WB)
GoodOver: WALLEY RUN CR
4.63 MI E OF ILL 47, Grundy, IL
Built 2003 Load: 47.3 t ADT: 39,100
US 45 FAP 681
GoodOver: PRAIRIE CREEK
1.5 mi W/IL 49, Iroquois, IL
Built 2011 Load: 47.3 t ADT: 1,050
FAP-116 (ILL-130)
GoodOver: BRUSH CREEK
.9 MI S NEWTON, Jasper, IL
Built 1982 Load: 47.3 t ADT: 4,450
DENKER ROAD
GoodOver: FERSON CREEK
0.65 MI N Bolcum Rd, Kane, IL
Built 1972 Load: 47.3 t ADT: 1,000
IL 21
GoodOver: STREAM
0.25 M S I-94, Lake, IL
Built 2003 Load: 47.3 t ADT: 22,300
IL 173
GoodOver: MILL CREEK
0.3 M E OF US 45, Lake, IL
Built 2003 Load: 47.3 t ADT: 15,600
US 6
GoodOver: TRIB OF I & M CANAL
6.47 MI E OF ILL 71, LaSalle, IL
Built 1980 Load: 47.3 t ADT: 2,450
TR 285
GoodOver: Big Slough
1 Mi. SW St. Francis, Lawrence, IL
Built 2019 Load: 47.3 t ADT: 50
IL 140
GoodOver: Silver Creek
0.5mi E of IL 4, Madison, IL
Built 1992 Load: 47.3 t ADT: 2,750
CH 26 (Woodford Co
GoodOver: Evergreen Lake SPilW
2.5 Mile NW of Hudso, McLean, IL
Built 1970 Load: 47.3 t ADT: 350
FAP 749 (IL 133)
GoodOver: Jonathan Branch
2.5 Mi. E. Lovington, Moultrie, IL
Built 2018 Load: 47.3 t ADT: 2,350
TR105
GoodOver: TWO MILE BRANCH
2 MI E SULLIVAN, Moultrie, IL
Built 2023 Load: 47.3 t ADT: 100
ILL 38
GoodOver: KYTE RIVER
3 MI. W. OF ROCHELLE, Ogle, IL
Built 2000 Load: 47.3 t ADT: 2,300
FAP 116(IL 130)
GoodOver: LITTLE FOX RIVER
3.5 MI S JCT US-50, Richland, IL
Built 1999 Load: 47.3 t ADT: 4,500
CAMPBELL ISLAND RD
GoodOver: BRANCH OF MISS RIVER
0.3 MI NW OF ILL 84, Rock Island, IL
Built 1938 Load: 47.3 t ADT: 800
CH 18
GoodOver: S BR MILL CR
7.0 MI S OF MILAN, Rock Island, IL
Built 1986 Load: 47.3 t ADT: 1,200
IL 100
GoodOver: SUGAR CREEK
2.3M N FREDERICK, Schuyler, IL
Built 1999 Load: 47.3 t ADT: 1,100
ILL 100
GoodOver: EAGLE RUN CREEK
1.5 MI N BLUFFS, Scott, IL
Built 1992 Load: 47.3 t ADT: 1,300
TR 194 Reinneck Rd
GoodOver: Hazel Creek
0.25 Mi N Jefferson, St. Clair, IL
Built 2018 Load: 47.3 t ADT: 225
ILL 116 RP #2.64
GoodOver: IL RIVER TRIB.
SW RAMP MCCLUGAGE, Tazewell, IL
Built 2020 Load: 47.3 t ADT: 9,000
TR 137
GoodOver: LITTLE MACKINAW RIVE
E.CTR-27-T24NR2W, Tazewell, IL
Built 2022 Load: 47.3 t ADT: 50
VOORHEES(FAU 6999)
GoodOver: STONY CREEK
N SIDE OF DANVILLE, Vermilion, IL
Built 2018 Load: 47.3 t ADT: 5,750
TR 562
GoodOver: King Creek
1.7 Mi. W Golden Gat, Wayne, IL
Built 2020 Load: 47.3 t ADT: 50
T.R. 103 (1500 N)
GoodOver: Little Panther Creek
4.2 MI E IL 251, Woodford, IL
Built 2023 Load: 47.3 t ADT: 25
TR156 Dudleyville
GoodOver: Beaver Creek
2.75 Mi S Greenville, Bond, IL
Built 2020 Load: 47.6 t ADT: 375
IL 26/29
GoodOver: HENNEPIN CANAL
S EDGE BUREAU JCT., Bureau, IL
Built 1988 Load: 47.6 t ADT: 750
I-80 EB
GoodOver: EAST BUREAU CREEK
1.2 MI E JCT I-180, Bureau, IL
Built 2011 Load: 47.6 t ADT: 11,450
I-80 WB
GoodOver: EAST BUREAU CREEK
1.2 MI E JCT I-180, Bureau, IL
Built 2010 Load: 47.6 t ADT: 11,450
IL 83 (CAL-SAG RD
GoodOver: CREEK W OF IL 7
0.2 M W OF IL 7, Cook, IL
Built 1985 Load: 47.6 t ADT: 10,450
IL 72 EB
GoodOver: RR - WI CENTRAL LTD
.65 M W OF IL 59, Cook, IL
Built 1991 Load: 47.6 t ADT: 21,900
Brookfield Avenue
GoodOver: Salt Creek
0.01 M N BR RR, Cook, IL
Built 2023 Load: 47.6 t ADT: 800
SCHOOL ST.
GoodOver: IHB RR
0.2 MI S. OF 138TH S, Cook, IL
Built 1984 Load: 47.6 t ADT: 3,400
FAP 323(US 36)
GoodOver: SHILO #2 DRAIN DITCH
W EDGE HUME, Edgar, IL
Built 1990 Load: 47.6 t ADT: 1,650
FAS 2793 (ILL-140)
GoodOver: HURRICANE CR OVERFLO
SE MULBERRY GROVE, Fayette, IL
Built 1982 Load: 47.6 t ADT: 600
IL 9 FAP 693
GoodOver: DRUMMER CREEK
0.07 MI W OF IL 47, Ford, IL
Built 2008 Load: 47.6 t ADT: 2,400
FAS 888
GoodOver: M.FORK CYPRESS CREEK
3.65 MI N ILL 13, Gallatin, IL
Built 2006 Load: 47.6 t ADT: 1,100
TR 163A
GoodOver: Apple Creek
1.7 Mi SE Haypress, Greene, IL
Built 2018 Load: 47.6 t ADT: 25
FAI 80 (EB & WB)
GoodOver: COLLINS RUN CREEK
3.93 MI E OF ILL 47, Grundy, IL
Built 2003 Load: 47.6 t ADT: 39,100
ILL 47 FAP326
GoodOver: STREAM
1.92 MI S of IL 113, Grundy, IL
Built 1995 Load: 47.6 t ADT: 7,100
US RT 6
GoodOver: MINERAL CREEK
1.2 MI E OSCO RD, Henry, IL
Built 2014 Load: 47.6 t ADT: 3,100
CH 42
GoodOver: Trib. to Prairie Creek
1.5miS/1.5miE of Ashkum, Iroquois, IL
Built 2023 Load: 47.6 t ADT: 75
TR 74
GoodOver: SPRING CR
1.5 MI SE ONARGA, Iroquois, IL
Built 2020 Load: 47.6 t ADT: 150
CH-10 E Fiedler Rd
GoodOver: S Fk Apple River
5 MI N OF STOCKTON, Jo Daviess, IL
Built 1955 Load: 47.6 t ADT: 100
IL 31
GoodOver: FERSON CREEK
1.1 M N OF IL 64, Kane, IL
Built 2016 Load: 47.6 t ADT: 11,700
ORCHARD ROAD
GoodOver: BLACKBERRY CRK OVRFL
0.675 MI N US 30, Kane, IL
Built 2012 Load: 47.6 t ADT: 29,900
IL 25 FAU 2503
GoodOver: WAUBANSEE CREEK
IL 25 & WAUBANSEE CR, Kendall, IL
Built 2009 Load: 47.6 t ADT: 7,900
US 34
GoodOver: Blackberry Creek
0.51 MI W OF ILL 47, Kendall, IL
Built 2019 Load: 47.6 t ADT: 22,400
Showing 24,501-24,550 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 |