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 447
FairOver: SWANK CREEK
1.0 MILE E INDIANOLA, Vermilion, IL
Built 2005 Load: 32.4 t ADT: 50
TR 284
FairOver: STREAM
0.5 MI S HOOPESTON, Vermilion, IL
Built 2003 Load: 32.4 t ADT: 100
TR 38
FairOver: SALT FORK RIVER
3.0 MI NW FAIRMOUNT, Vermilion, IL
Built 2005 Load: 32.4 t ADT: 50
TR 145
FairOver: STREAM
1.5 MI S JAMESBURG, Vermilion, IL
Built 2003 Load: 32.4 t ADT: 200
TR 180
FairOver: BEAN CREEK
3 MI NW HENNING, Vermilion, IL
Built 2002 Load: 32.4 t ADT: 50
TR 37
FairOver: MIDDLE BR VERM RIVER
6 MI SE CHENEYVILLE, Vermilion, IL
Built 2002 Load: 32.4 t ADT: 75
TR 125
FairOver: UNNAMED DITCH
3 MI SW ALVIN, Vermilion, IL
Built 2003 Load: 32.4 t ADT: 50
TR 96 (770 E)
FairOver: DILLON BRANCH
2.5 MI SE SIDELL, Vermilion, IL
Built 2006 Load: 32.4 t ADT: 50
TR 2
FairOver: BR SUGAR CREEK
5.5 MI SW RANKIN, Vermilion, IL
Built 2010 Load: 32.4 t ADT: 50
TR 155A
FairOver: STREAM
3.2 MI SE BISMARK, Vermilion, IL
Built 2003 Load: 32.4 t ADT: 125
TR 5C
FairOver: WHISKEY CREEK
2.2 MILE E RANKIN, Vermilion, IL
Built 2007 Load: 32.4 t ADT: 75
TR 413
FairOver: FREEDWELL BRANCH
4 MI NW SIDELL, Vermilion, IL
Built 2010 Load: 32.4 t ADT: 50
TR 298 B WESTERN A
FairOver: HUNGRY HOLLOW CREEK
1.5 MI W DANVILLE, Vermilion, IL
Built 2009 Load: 32.4 t ADT: 275
TR 315
FairOver: Jordan Creek
5 mi West of Catlin, Vermilion, IL
Built 2017 Load: 32.4 t ADT: 50
TR 225
FairOver: Feather Creek
3.5 MI N of MUNCIE, Vermilion, IL
Built 2014 Load: 32.4 t ADT: 75
TR 143
FairOver: TRIB KNIGHTS BRANCH
2.5 MI NW COLLISON, Vermilion, IL
Built 2013 Load: 32.4 t ADT: 50
TR 15
FairOver: Whiskey Creek
2.5 MI S OF RANKIN, Vermilion, IL
Built 2014 Load: 32.4 t ADT: 50
TR-194
FairOver: Stream
4 MI SE JAMESBURG, Vermilion, IL
Built 2017 Load: 32.4 t ADT: 125
FAS 1511(CH 20)
FairOver: STREAM
3 MI NW DANVILLE, Vermilion, IL
Built 1977 Load: 32.4 t ADT: 1,950
FAS 1511(CH 20)
FairOver: STREAM
3 MI NW DANVILLE, Vermilion, IL
Built 1977 Load: 32.4 t ADT: 1,950
FAU 7054(TR 227F)
FairOver: HUNGRY HOLLOW CREEK
1 MI W DANVILLE, Vermilion, IL
Built 1977 Load: 32.4 t ADT: 500
TR 6
FairOver: STREAM
2.5 MI SE HOPE, Vermilion, IL
Built 1979 Load: 32.4 t ADT: 50
HILLERY RD(FAS 498
FairOver: STREAM
4 MI W DANVILLE, Vermilion, IL
Built 1979 Load: 32.4 t ADT: 4,050
TR 480
FairOver: STREAM
3 MI SE CHENEYVILLE, Vermilion, IL
Built 1991 Load: 32.4 t ADT: 50
TR 39
FairOver: DRAINAGE DITCH
4 MI SW HOOPESTON, Vermilion, IL
Built 1995 Load: 32.4 t ADT: 150
Kelly Drive
FairOver: Trib. of Salt Fork
In Oakwood, Vermilion, IL
Built 2015 Load: 32.4 t ADT: 275
"G" ST(FAU 7026)
FairOver: N&S RR
SW SIDE OF TILTON, Vermilion, IL
Built 1980 Load: 32.4 t ADT: 1,050
FAU 7029(LYNCH SPU
FairOver: CSX RR
DANVILLE-LYNCH SPUR, Vermilion, IL
Built 1997 Load: 32.4 t ADT: 1,600
LIBERTY LN(FAU 699
FairOver: STONY CREEK
DANVILLE-LIBERTY LN, Vermilion, IL
Built 2001 Load: 32.4 t ADT: 3,450
THORNHILL DR(MS 11
FairOver: TRIB LAKE VERMILION
DANVILLE-THORNHILL, Vermilion, IL
Built 2002 Load: 32.4 t ADT: 275
WINTER AV(FAU 6998
FairOver: STONY CREEK
N SIDE DANVILLE, Vermilion, IL
Built 2006 Load: 32.4 t ADT: 3,300
CH 1(FAU 7000)
FairOver: N FORK VERMILION RIV
1.5 MI NW 150 & 1, Vermilion, IL
Built 2006 Load: 32.4 t ADT: 2,050
BUCHANAN ST
FairOver: STONY CREEK
W BOWMAN/MAIN, Vermilion, IL
Built 2008 Load: 32.4 t ADT: 450
TR-9 (WABASH CO)
FairOver: BONPAS CREEK
5.5 MI WNW LANCASTER, Wabash, IL
Built 1981 Load: 32.4 t ADT: 50
TR-168
FairOver: CREEK
0.5 MI NE ALLENDALE, Wabash, IL
Built 1982 Load: 32.4 t ADT: 75
CH-17
FairOver: JORDON CREEK
0.8 MI S LANCASTER, Wabash, IL
Built 1987 Load: 32.4 t ADT: 200
TR-170
FairOver: CREEK
0.75 MI NE ALLENDALE, Wabash, IL
Built 1994 Load: 32.4 t ADT: 50
CH 5
FairOver: CREEK
1 MI NE KEENSBURG, Wabash, IL
Built 1998 Load: 32.4 t ADT: 150
TR 71
FairOver: TRIB OF JORDAN CR
8 MI N BELLMONT, Wabash, IL
Built 2003 Load: 32.4 t ADT: 50
FAS 1405
FairOver: HENDERSON CREEK
SW-24-T12NR1W, Warren, IL
Built 1985 Load: 32.4 t ADT: 50
FAI 64 EB
FairOver: LITTLE CROOKED CREEK
3.0 MI NW ILL 127, Washington, IL
Built 1969 Load: 32.4 t ADT: 14,650
FAI 64 WB
FairOver: LITTLE CROOKED CK
3 MI N W RT 127, Washington, IL
Built 1969 Load: 32.4 t ADT: 14,650
IL ROUTE 177
FairOver: W TRIB LTL CROOKD CR
1.5 MI W OF IL 127, Washington, IL
Built 1932 Load: 32.4 t ADT: 1,550
TR 123
FairOver: WILLOW CREEK
2 MI N-2.75 MI W NAS, Washington, IL
Built 1917 Load: 32.4 t ADT: 50
TR 123
FairOver: NASHVILLE CREEK
2 MI N NASHVILLE, Washington, IL
Built 1920 Load: 32.4 t ADT: 550
TR 156
FairOver: BR LITTLE CROOKED
EAST OF NEW MINDEN, Washington, IL
Built 1925 Load: 32.4 t ADT: 25
CH 6
FairOver: ELKHORN CREEK
0.5 M E OF VENEDY, Washington, IL
Built 1978 Load: 32.4 t ADT: 200
TR 70A
FairOver: WILLIAMS CREEK
5.5 MI S OF OKAWVILL, Washington, IL
Built 1978 Load: 32.4 t ADT: 175
TR 90
FairOver: BR WILLIAMS CR
3 MI SW OFADDIEVILLE, Washington, IL
Built 1981 Load: 32.4 t ADT: 50
TR 236
FairOver: BR GRAND POINT CREEK
2 MI SW OF IRVINGTON, Washington, IL
Built 1981 Load: 32.4 t ADT: 200
Showing 9,801-9,850 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.