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 6
GoodOver: HENDERSON CREEK
NW-18-T12NR3W, Warren, IL
Built 1985 Load: 32.4 t ADT: 50
TR 45A
GoodOver: CEDAR CREEK
SW-23-T12NR3W, Warren, IL
Built 1984 Load: 32.4 t ADT: 25
TR 22
GoodOver: HENDERSON CREEK
SW-8-T12NR3W, Warren, IL
Built 1988 Load: 32.4 t ADT: 50
TR 22
GoodOver: CEDAR CREEK
CTR-20-T12NR3W, Warren, IL
Built 1992 Load: 32.4 t ADT: 50
TR 59
GoodOver: JOHN'S CREEK
E. CTR-32-T12NR3W, Warren, IL
Built 1996 Load: 32.4 t ADT: 35
TR 22
GoodOver: DUCK CREEK
NW-5-T12NR3W, Warren, IL
Built 2000 Load: 32.4 t ADT: 25
TR 50
GoodOver: HEND CR
SW-2-T12NR3W, Warren, IL
Built 2005 Load: 32.4 t ADT: 25
TR 45
GoodOver: BR CEDAR CR
SE-24-T12NR3W, Warren, IL
Built 2011 Load: 32.4 t ADT: 25
IL 160
GoodOver: PLUM CREEK BRANCH
1.6MI W ADDIEVILLE, Washington, IL
Built 2009 Load: 32.4 t ADT: 950
ILL 15
GoodOver: TRIB TO WILLOW CREEK
2.6M WEST OF ILL 127, Washington, IL
Built 1971 Load: 32.4 t ADT: 2,200
IL 15
GoodOver: Trib to Willow Creek
1.0M W OF NASHVILLE, Washington, IL
Built 1995 Load: 32.4 t ADT: 2,200
TR 83
GoodOver: BEAVER POND CREEK
2 MI NE OFADDLEVILLE, Washington, IL
Built 1973 Load: 32.4 t ADT: 50
TR 0001
GoodOver: GRAND POINT CREEK
5 MI NW OFIRVINGTON, Washington, IL
Built 1978 Load: 32.4 t ADT: 50
TR 214
GoodOver: TRIB OF GRAND PT CK
4 MI W OFIRVINGTON, Washington, IL
Built 1978 Load: 32.4 t ADT: 100
TR 7
GoodOver: HERZOG BRANCH
4 MI NE HOYLETON, Washington, IL
Built 1982 Load: 32.4 t ADT: 50
TR 195
GoodOver: BACK CREEK
2.7 MI S OF BEAUCOUP, Washington, IL
Built 1981 Load: 32.4 t ADT: 50
TR 200 B
GoodOver: SUGAR CREEK
4.5 MI NW OF RADOM, Washington, IL
Built 1982 Load: 32.4 t ADT: 150
CO HWY NO 6
GoodOver: BR OF WEAVER CREEK
2 MI S OF OKAWVILLE, Washington, IL
Built 1982 Load: 32.4 t ADT: 300
TR 8A
GoodOver: BRANCH OF MUD CREEK
2.5 MI NE OF TILDEN, Washington, IL
Built 1982 Load: 32.4 t ADT: 25
TR 14
GoodOver: ELKHORN CREEK
2.5 MI NW OF VENEDY, Washington, IL
Built 1983 Load: 32.4 t ADT: 50
TR 247
GoodOver: BEAUCOUP CREEK
5.5 MI WEST OF RADOM, Washington, IL
Built 1982 Load: 32.4 t ADT: 75
TR 59
GoodOver: PLUM CREEK
0.25 MI E OKAWVILLE, Washington, IL
Built 1982 Load: 32.4 t ADT: 375
TR 206A
GoodOver: BR OF BEAUCOUP CREEK
2 MI EAST BEAUCOUP, Washington, IL
Built 1982 Load: 32.4 t ADT: 75
TR 244
GoodOver: LITTLE MUDDY RIVER
SW 1/4 SEC27 T3S R1W, Washington, IL
Built 1983 Load: 32.4 t ADT: 50
TR 13
GoodOver: GRAND POINT CREEK
NE COR SEC5 T1S R1W, Washington, IL
Built 1984 Load: 32.4 t ADT: 50
TR 15
GoodOver: BR OF GRAND POINT CK
NW 1/4 SEC 3 T1S R1W, Washington, IL
Built 1984 Load: 32.4 t ADT: 25
TR 196
GoodOver: PANTHER CREEK
SW 1/4 SEC26 T3S R2W, Washington, IL
Built 1984 Load: 32.4 t ADT: 150
TR 277
GoodOver: BRANCH OF MUD CREEK
1 MILE NE OF TILDEN, Washington, IL
Built 1984 Load: 32.4 t ADT: 125
TR 145
GoodOver: BR OF ELKHORN CREEK
SW1/4 SEC 13 T2S R5W, Washington, IL
Built 1984 Load: 32.4 t ADT: 75
TR 122
GoodOver: BR OF BEAVER POND CK
CENTER SEC 32 T1SR3W, Washington, IL
Built 1985 Load: 32.4 t ADT: 25
TR 107
GoodOver: BR OF RAYSE CREEK
1 MI NE OF RICHVIEW, Washington, IL
Built 1986 Load: 32.4 t ADT: 50
TR 181
GoodOver: LITTLE MUD CREEK
NW 1/4 SEC27 T2S R5W, Washington, IL
Built 1985 Load: 32.4 t ADT: 25
TR 140
GoodOver: LOCUST CREEK
ADD LATER, Washington, IL
Built 1988 Load: 32.4 t ADT: 250
TR 36
GoodOver: BRANCH OF ELKHORN CK
SW1/4 SEC 25 T1S R5W, Washington, IL
Built 1986 Load: 32.4 t ADT: 75
TR 146
GoodOver: BR OF LITTLE CROOKED
NW 1/4 SEC 2 T1S R3W, Washington, IL
Built 1986 Load: 32.4 t ADT: 25
TR 12
GoodOver: BR OF LITTLE MUD CK
NW 1/2 SEC 21 T2SR5W, Washington, IL
Built 1986 Load: 32.4 t ADT: 150
TR 173
GoodOver: BACK CREEK
3 MI WEST OF ASHLEY, Washington, IL
Built 1987 Load: 32.4 t ADT: 25
TR 54
GoodOver: BRANCH OF MUD CREEK
5 MI SE LIVELY GROVE, Washington, IL
Built 1987 Load: 32.4 t ADT: 50
TR 211
GoodOver: SUGAR CREEK
NW 1/4 SEC 1 T3S R2W, Washington, IL
Built 1987 Load: 32.4 t ADT: 125
TR 25
GoodOver: BRANCH OF COON CREEK
3 MI NE NEW MINDEN, Washington, IL
Built 1987 Load: 32.4 t ADT: 25
TR 16
GoodOver: BR LITTLE MUD CREEK
2.5MI N OF CASPERS, Washington, IL
Built 1988 Load: 32.4 t ADT: 100
TR 211
GoodOver: BACK CREEK
SW 1/4 SEC 35 T2SR2W, Washington, IL
Built 1987 Load: 32.4 t ADT: 175
TR 33
GoodOver: BR LT CROOKED CREEK
1.5MI NW NEW MINDEN, Washington, IL
Built 1988 Load: 32.4 t ADT: 50
TR 250
GoodOver: BR GRAND PT CREEK
0.75W/1.5N IRVINGTON, Washington, IL
Built 1988 Load: 32.4 t ADT: 75
TR 91
GoodOver: ELKHORN CREEK
0.75 E. VENEDY, Washington, IL
Built 1990 Load: 32.4 t ADT: 25
TR 12
GoodOver: LITTLE MUD CREEK
2.75 MI SW STONE CR, Washington, IL
Built 1990 Load: 32.4 t ADT: 150
TR 198
GoodOver: PANTHER CREEK
6 MI. NW OF DUBOIS, Washington, IL
Built 1990 Load: 32.4 t ADT: 75
TR 75
GoodOver: LITTLE CROOKED CREEK
4.3 MI SW NEW MINDEN, Washington, IL
Built 1992 Load: 32.4 t ADT: 50
TR 200
GoodOver: BR. OF BEAUCOUP CR
5 M WEST ASHLEY, Washington, IL
Built 1989 Load: 32.4 t ADT: 150
TR 235
GoodOver: BRANCH OF MUD CREEK
4 MI SW LIVELY GROVE, Washington, IL
Built 1991 Load: 32.4 t ADT: 100
Showing 21,401-21,450 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 |