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
OLD MONEE RD
FairOver: THORN CREEK
.7MI N EXCHANGE RD, Will, IL
Built 2008 Load: 32.4 t ADT: 1,100
111TH ST
FairOver: DUPAGE RIVER
.8M W OF PLNFELD RD, Will, IL
Built 2002 Load: 32.4 t ADT: 18,300
WEBER ROAD
FairOver: MINK CREEK
.2M N OF AIRPORT RD, Will, IL
Built 1982 Load: 32.4 t ADT: 31,900
RENWICK RD
FairOver: DUPAGE RIVER
1.2M W of IL59, Will, IL
Built 2012 Load: 32.4 t ADT: 9,000
MOUND ROAD
FairOver: DUPAGE RIVER
300FT E OF RIVER RD, Will, IL
Built 1978 Load: 32.4 t ADT: 2,000
PATTERSON RD
FairOver: QUARRY
0.3M WEST BRANDON RD, Will, IL
Built 2000 Load: 32.4 t ADT: 825
PATTERSON ST
FairOver: SUGAR RUN CREEK
0.6 MI NE BRANDON RD, Will, IL
Built 2001 Load: 32.4 t ADT: 1,300
SCHEER ROAD
FairOver: STREAM
.9 S LARAWAY RD, Will, IL
Built 1984 Load: 32.4 t ADT: 1,250
SPANGLER RD.
FairOver: JACKSON CREEK
0.25 M.W CHERRY HILL, Will, IL
Built 1989 Load: 32.4 t ADT: 200
CHERRY HILL RD.
FairOver: PRAIRIE CREEK
0.4M.N.OF HOFF RD., Will, IL
Built 1990 Load: 32.4 t ADT: 150
OFFNER RD.
FairOver: FORKEDCREEK
5.0M.S.E.OF MANHATEN, Will, IL
Built 1989 Load: 32.4 t ADT: 200
SCHOOL HOUSE ROAD
FairOver: PRAIRIE CREEK
0.8MIS.MANHATTAN-MON, Will, IL
Built 1990 Load: 32.4 t ADT: 75
SCHOOL HOUSE RD
FairOver: JACKSON CREEKTRIB
3.5 M S US-30, Will, IL
Built 1996 Load: 32.4 t ADT: 3,650
CHERRY HILL RD
FairOver: PRAIRIE CREEK
0.2 M N HOFF RD, Will, IL
Built 1997 Load: 32.4 t ADT: 150
KANKAKEE RD
FairOver: TRIB PRAIRIE CREEK
0.1M S MAHATTEN MONE, Will, IL
Built 2002 Load: 32.4 t ADT: 275
PEOTENE RD (88TH A
FairOver: FORKED CREEK
1.1 MI S. MAIN-MONEE, Will, IL
Built 2008 Load: 32.4 t ADT: 425
104TH AVE
FairOver: FORKED CREEK
0.5 MI S OF GORMAN R, Will, IL
Built 1985 Load: 32.4 t ADT: 75
SCHEER RD.
FairOver: PRAIRIE CREEK
02 M SO MANH MON RD, Will, IL
Built 1988 Load: 32.4 t ADT: 50
OLD CHICAGO RD
FairOver: RYANS CREEK
N OF IL 102, Will, IL
Built 1995 Load: 32.4 t ADT: 1,550
BRUNS RD
FairOver: TRIB FORKED CREEK
2.9 MI E US-45, Will, IL
Built 1999 Load: 32.4 t ADT: 375
NEW AVE
FairOver: LONG RUN CREEK
2 M N IL 171, Will, IL
Built 2002 Load: 32.4 t ADT: 5,450
KEDZIE AVE
FairOver: BLACK WALNUT CR
0.40 MI S PAULING RD, Will, IL
Built 1982 Load: 32.4 t ADT: 375
OFFNER ROAD
FairOver: ROCK CREEK
.3 M E.ILL 50, Will, IL
Built 1984 Load: 32.4 t ADT: 300
OFFNER ROAD TR377
FairOver: TRIB. ROCK CREEK
0.5 MI E EGYP. TR RD, Will, IL
Built 1985 Load: 32.4 t ADT: 175
US 30
FairOver: HICKORY CR TRIB #2
0.64 M E OF WOLF, Will, IL
Built 2012 Load: 32.4 t ADT: 27,300
BEMES RD
FairOver: PLUM CREEK
0.5 MI S IL 394, Will, IL
Built 1982 Load: 32.4 t ADT: 1,150
TR-10 WILL ROAD
FairOver: CLAYPOOL DRAIN DITCH
0.7 MI NO IL 113, Will, IL
Built 1981 Load: 32.4 t ADT: 325
EAST KAHLER ROAD
FairOver: FORKED CREEK
0.9 MI E IL 102 N, Will, IL
Built 1985 Load: 32.4 t ADT: 400
INDIAN TRAIL ROAD
FairOver: JORDAN CREEK
0.2 M SO WILM-PEOTON, Will, IL
Built 1989 Load: 32.4 t ADT: 100
QUIGLEY RD.
FairOver: JORDAN CREEK
0.8M E.OLD CHICAGORD, Will, IL
Built 1990 Load: 32.4 t ADT: 50
ALLOTT DRIVE
FairOver: JORDAN CREEK
1.7M E IL 53, Will, IL
Built 1995 Load: 32.4 t ADT: 250
BARR ROAD
FairOver: TRIB OF JORDAN CREEK
0.4 MI N E KAHLER RD, Will, IL
Built 1998 Load: 32.4 t ADT: 200
WILTON RD.
FairOver: STREAM
1.8 MI S US 52, Will, IL
Built 1986 Load: 32.4 t ADT: 50
WILTON RD. (128TH
FairOver: S.BR.FORKED CREEK
3.7 MI SO US 52, Will, IL
Built 1990 Load: 32.4 t ADT: 50
GOUGAR ROAD
FairOver: FORKED CREEK
0.9 MI S WIL PECT RD, Will, IL
Built 1991 Load: 32.4 t ADT: 20
GOUGAR ROAD
FairOver: FORKED CREEK
O.4M S WIL-PEOTO RD, Will, IL
Built 1993 Load: 32.4 t ADT: 75
TR-287 (Barr Rd)
FairOver: Forked Creek
0.5M W WILTON CENTRD, Will, IL
Built 1993 Load: 32.4 t ADT: 50
GOUGAR ROAD
FairOver: FORKED CREEK
0.2 M S WILM-PEOT RD, Will, IL
Built 1994 Load: 32.4 t ADT: 20
PEOTONE RD
FairOver: ROCK CREEK
1 MI W.PEOTONE, Will, IL
Built 1977 Load: 32.4 t ADT: 500
W North Peotone Rd
FairOver: ROCK CREEK
1 MI N PEOTONE, Will, IL
Built 1979 Load: 32.4 t ADT: 1,550
CENTER ROAD
FairOver: ROCK CREEK
0.6 MI NO. KKK ROAD, Will, IL
Built 1979 Load: 32.4 t ADT: 1,050
EAGLE LAKE RD.
FairOver: S.BRANCH FORKED CR.
0.8 MI E CENTER RD., Will, IL
Built 1980 Load: 32.4 t ADT: 100
PEOTONE RD
FairOver: S BR FORKED CR
0.2 MI S OFFNER RD, Will, IL
Built 1982 Load: 32.4 t ADT: 500
KENNEDY ROAD
FairOver: BLACK WALNUT CRK
.7M E of IL50, Will, IL
Built 1984 Load: 32.4 t ADT: 350
BARR ROAD
FairOver: S.BR.OF FORKED CREEK
0.4MI E. OF US45, Will, IL
Built 1985 Load: 32.4 t ADT: 100
KENNEDY RD
FairOver: ROCK CREEK
2.3 MI E US 45, Will, IL
Built 1985 Load: 32.4 t ADT: 125
FAS-6859 (Grn Gard
FairOver: S Br Forked Creek
1.2N KANKAKEE CO, Will, IL
Built 1992 Load: 32.4 t ADT: 100
KEDZIE AVE
FairOver: EXLINE SLOUGH
0.50 MI N KENNEDY RD, Will, IL
Built 1983 Load: 32.4 t ADT: 200
KENNEDY RD
FairOver: MARSHALL SLOUGH
2.5M.E.OF IL-50, Will, IL
Built 1988 Load: 32.4 t ADT: 350
EAGLE LAKE RD.
FairOver: BLACK WALNUT CR.(W)
1.9 M E OF IL 50, Will, IL
Built 1990 Load: 32.4 t ADT: 225
Showing 10,051-10,100 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.