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-49
GoodOver: SCHNEIDER SPRINGS BR
1 MI NE KINMUNDY, Marion, IL
Built 1983 Load: 39.5 t ADT: 25
TR-96B
GoodOver: PRAIRIE CREEK
0.25 MI W ODIN, Marion, IL
Built 1982 Load: 39.5 t ADT: 150
TR-215
GoodOver: PRAIRE CREEK
0.5 MI N ODIN, Marion, IL
Built 1983 Load: 39.5 t ADT: 50
TR-139
GoodOver: DUMS CREEK
2 MI E ALMA, Marion, IL
Built 1984 Load: 39.5 t ADT: 25
TR-160
GoodOver: KASKASKIA RIVER
4 MI E PATOKA, Marion, IL
Built 1991 Load: 39.5 t ADT: 50
US 45
GoodOver: SEVEN MILE CREEK
2.17 MI E OF ILL 145, Massac, IL
Built 1995 Load: 39.5 t ADT: 4,900
TR 19
GoodOver: BEAR CREEK
.1 MI WEST ILL 145, Massac, IL
Built 1984 Load: 39.5 t
BEN BREAMER ROAD
GoodOver: NEW COLUMBIA DITCH
3.2MI S NEW COLUMBIA, Massac, IL
Built 1987 Load: 39.5 t ADT: 100
HEFFNER RD-TR 298
GoodOver: CARTER CREEK
NE-29-T4NR2W, McDonough, IL
Built 1987 Load: 39.5 t ADT: 50
GRAF ROAD/TR-37
GoodOver: LAWRENCE CREEK
.3MNW OAK GR/HARVARD, McHenry, IL
Built 2011 Load: 39.5 t ADT: 375
ILL 165
GoodOver: BR MACKINAW RIVER
12.1 MI N OF ILL 9, McLean, IL
Built 1990 Load: 39.5 t ADT: 750
US 150
GoodOver: KICKAPOO CREEK
1.6 M S BUS. 55, McLean, IL
Built 1993 Load: 39.5 t ADT: 4,250
TR 94
GoodOver: KINGS MILL CREEK
4.5 MI NW SHIRLEY, McLean, IL
Built 2020 Load: 39.5 t ADT: 175
IL 16
GoodOver: BR E FK SHOAL CREEK
.95M E ELM - NOKOMIS, Montgomery, IL
Built 2002 Load: 39.5 t ADT: 1,450
TR 257
GoodOver: Dry Fork
0.70 mi W FAS 732A, Montgomery, IL
Built 2022 Load: 39.5 t ADT: 75
ILL 72
GoodOver: KILBUCK CREEK TRIB
.8 MI W OF I 39, Ogle, IL
Built 1985 Load: 39.5 t ADT: 4,500
FAS 1042 - IL 251
GoodOver: UNNAMED STREAM
2 MI. N. OF IL 64, Ogle, IL
Built 1991 Load: 39.5 t ADT: 3,300
BAILEYVILLE ROAD
GoodOver: LEAF RIVER
2.0 MI N FORRESTON, Ogle, IL
Built 1983 Load: 39.5 t ADT: 1,400
EAGLE POINT RD /CH
GoodOver: BNSF RR
.4 MI W. OF POLO, Ogle, IL
Built 2002 Load: 39.5 t ADT: 375
TR114 MAPLE GROVE
GoodOver: BR PINE CREEK
3.0 SW MT MORRIS, Ogle, IL
Built 2021 Load: 39.5 t ADT: 50
ILL.154
GoodOver: LITTLE GALUM CREEK
2 MI.W OF (P'VILLE), Perry, IL
Built 1992 Load: 39.5 t ADT: 2,550
FAP 42-IL 13/127
GoodOver: WALKERS CREEK
.09M N JKSN/PERRYCL, Perry, IL
Built 2000 Load: 39.5 t ADT: 3,750
FAS 602
GoodOver: MCKEE CR BRANCH
1.5M S.CHAMBERSBURGH, Pike, IL
Built 1980 Load: 39.5 t ADT: 300
FAS 2936 (UNMARKED
GoodOver: LITTLE CREEK
1.7 MI S OF UNION CO, Pulaski, IL
Built 1991 Load: 39.5 t ADT: 1,000
248TH ST. E.MOLINE
GoodOver: ZUMA CREEK
1.36 M S OF IL RT 92, Rock Island, IL
Built 1982 Load: 39.5 t ADT: 35
284TH STREET
GoodOver: COPPERAS CREEK
4 M SW ILLINOIS CITY, Rock Island, IL
Built 1987 Load: 39.5 t ADT: 100
IL 123
GoodOver: TRIB FANCY CREEK
2.3M W I55,WILLIAMSV, Sangamon, IL
Built 1991 Load: 39.5 t ADT: 2,300
ILL 13
GoodOver: POWDER MILL CREEK
1 M E CENTREVILLE, St. Clair, IL
Built 1929 Load: 39.5 t ADT: 3,250
IL 4
GoodOver: MUD CREEK OVERFLOW
0.56 MI N MARISSA, St. Clair, IL
Built 1992 Load: 39.5 t ADT: 1,550
IL 4
GoodOver: N Trib to Silver Crk
N Leg of IL 4/IL 161, St. Clair, IL
Built 1995 Load: 39.5 t ADT: 7,800
FAP 697(IL 9)
GoodOver: DRAINAGE DITCH
JUST W OF IL 1, Vermilion, IL
Built 1992 Load: 39.5 t ADT: 2,550
CH 5
GoodOver: Branch of Rayse Cr
0.5 Mi E of Richview, Washington, IL
Built 2020 Load: 39.5 t ADT: 100
FAP 328 (U.S. 45)
GoodOver: SEVEN MILE CREEK
1.5 MI S ENFIELD JCT, White, IL
Built 2006 Load: 39.5 t ADT: 1,500
CORDOVA ROAD
GoodOver: DRAINAGE DITCH
4 MI WEST OF ERIE, Whiteside, IL
Built 2004 Load: 39.5 t ADT: 325
Old Renwick Trail
GoodOver: Mink Creek
0.60 Mi E of I-55, Will, IL
Built 2001 Load: 39.5 t ADT: 1,400
CH 1
GoodOver: LAKE CREEK
.5 MI SW JOHNSTON CY, Williamson, IL
Built 1979 Load: 39.5 t ADT: 600
MONTAGUE RD
GoodOver: E BR MILL CRK
4 MI S OF WINNEBAGO, Winnebago, IL
Built 2012 Load: 39.5 t ADT: 1,900
STAGE COACH TRAIL
GoodOver: B N KENT CREEK
0.5 W OWEN CENTER RD, Winnebago, IL
Built 2003 Load: 39.5 t ADT: 575
FAU 7810 (IL 96)
GoodOver: Emery Creek
.3 mi E 24th St Qcy., Adams, IL
Built 2016 Load: 39.9 t ADT: 11,300
TR 93
GoodOver: Madison Creek
0.7 Mi S Batchtown, Calhoun, IL
Built 2017 Load: 39.9 t ADT: 225
ILL 104
GoodOver: LAKE SANGCHRIS
1.5 MI E SANG CO, Christian, IL
Built 1965 Load: 39.9 t ADT: 2,700
IL 29
GoodOver: CLEAR CREEK
0.2 MI SE SHARPSBURG, Christian, IL
Built 2005 Load: 39.9 t ADT: 8,550
TR 328
GoodOver: SNYDER CREEK
4 MI E WALNUT PRARIE, Clark, IL
Built 1973 Load: 39.9 t ADT: 50
GOVERNORS HWY
GoodOver: BUTTERFIELD CREEK
0.3 M NE US 30, Cook, IL
Built 1998 Load: 39.9 t ADT: 7,850
FAP 332 (IL 1)
GoodOver: SUGAR CREEK
2.25 MI N GORDON JCT, Crawford, IL
Built 2022 Load: 39.9 t ADT: 2,500
IL 53
GoodOver: E BR DU PAGE RIVER
0.8 M N IL 38, DuPage, IL
Built 2009 Load: 39.9 t ADT: 15,300
FAS 709 (CH 19)
GoodOver: RAMSEY CREEK
1.5 MI NORTH EBERLE, Effingham, IL
Built 2006 Load: 39.9 t ADT: 400
IL 115 FAP 798
GoodOver: DRAINAGE DITCH
3.38 MI S OF US 24, Ford, IL
Built 2009 Load: 39.9 t ADT: 950
ILL 14
GoodOver: OVERFLOW TO SUGAR CK
7.8 MI E BENTON, Franklin, IL
Built 2004 Load: 39.9 t ADT: 1,500
TR 184
GoodOver: APPLE CREEK
2 1/2 MI NE BERDAN, Greene, IL
Built 1992 Load: 39.9 t ADT: 50
Showing 23,351-23,400 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 |