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 597
GoodOver: Kiser Creek
1.08 mi E FAS 596, Pike, IL
Built 2020 Load: 41.8 t ADT: 250
226TH ST - E. MOLI
GoodOver: ZUMA CREEK
3 MI NE OF BARSTOW, Rock Island, IL
Built 1987 Load: 41.8 t ADT: 25
FAP 332-US 45 (NB)
GoodOver: STREAM
1.5 MI SW ELDORADO, Saline, IL
Built 2002 Load: 41.8 t ADT: 9,550
FAP 332-US 45 (NB)
GoodOver: STREAM
1 MI NE MUDDY, Saline, IL
Built 2002 Load: 41.8 t ADT: 9,500
FAP 332-US 45 (SB)
GoodOver: STREAM
1 MI NE MUDDY, Saline, IL
Built 2002 Load: 41.8 t ADT: 9,500
IL 29
GoodOver: SANGAMON RIVER TRIB.
.9M N SANGAMON RIVER, Sangamon, IL
Built 1997 Load: 41.8 t ADT: 6,950
FAS 583 (CH 5)
GoodOver: Cedar Creek
4 Mi SW Huntsville, Schuyler, IL
Built 2021 Load: 41.8 t ADT: 600
ILL 15 WB
GoodOver: RICHLAND CREEK
1.0 M E JCT ILL 159, St. Clair, IL
Built 1956 Load: 41.8 t ADT: 12,500
TR 120 Mulligan Ln
GoodOver: Br of Richland Cr
1.14 Mi W of IL 159, St. Clair, IL
Built 2020 Load: 41.8 t ADT: 125
WINNESHEIK ROAD
GoodOver: WINNESHEIK CREEK
2.0 MI E OF ILL 75, Stephenson, IL
Built 1976 Load: 41.8 t ADT: 150
MINIER RD-TR310A
GoodOver: LITTLE MACKINAW RV
NW-3-T23NR2W, Tazewell, IL
Built 1978 Load: 41.8 t ADT: 100
ILL 127
GoodOver: DUTCH CREEK
1.5 MI SO JONESBORO, Union, IL
Built 1987 Load: 41.8 t ADT: 1,600
TR 325
GoodOver: Stony Creek
3 MI SW DANVILLE, Vermilion, IL
Built 2021 Load: 41.8 t ADT: 250
325 N
GoodOver: CANE CREEK
5 MI SE NORRRIS CITY, White, IL
Built 2021 Load: 41.8 t ADT: 125
I- 55 NB
GoodOver: SUNNYLAND DRAIN
1.8 M S OF US 30, Will, IL
Built 1959 Load: 41.8 t ADT: 39,400
I- 55 SB
GoodOver: SUNNYLAND DRAIN
1.8 M S OF US 30, Will, IL
Built 1956 Load: 41.8 t ADT: 39,400
CEDAR RD
GoodOver: SPRING CREEK
1.1 MI N US-6, Will, IL
Built 2023 Load: 41.8 t ADT: 7,500
ILL 37
GoodOver: BNSF RR
1.7 MI N OF ILL 148, Williamson, IL
Built 2009 Load: 41.8 t ADT: 3,350
MERCY WAY
GoodOver: KEITH CREEK
E. EDGE OF ROCKFORD, Winnebago, IL
Built 2017 Load: 41.8 t ADT: 1,150
ILL 96
GoodOver: PIGEON CREEK
1.7MI SE PAYSON, Adams, IL
Built 1991 Load: 42.1 t ADT: 900
IL 127
GoodOver: CSXRR
.63 MI SE GREENVILLE, Bond, IL
Built 1995 Load: 42.1 t ADT: 11,200
IL 173
GoodOver: WILLOW CREEK
0.3 MI E WINN. CO LN, Boone, IL
Built 1994 Load: 42.1 t ADT: 6,250
I-80 EB
GoodOver: BARBARA DITCH
1.51 E/HENRY CO LN, Bureau, IL
Built 1963 Load: 42.1 t ADT: 8,950
I-80 WB
GoodOver: BARBARA DITCH
1.52 E/HENRY CO LN, Bureau, IL
Built 1963 Load: 42.1 t ADT: 8,950
IL 40 FAP 646
GoodOver: HICKORY CREEK
3.5 MI. N. OF I-80, Bureau, IL
Built 1993 Load: 42.1 t ADT: 2,400
US 34 FAS 1249
GoodOver: PIKE CREEK
0.5 MI SW/LAMOILLE, Bureau, IL
Built 2011 Load: 42.1 t ADT: 1,000
OLD US 50
GoodOver: EAST BREESE CREEK
.2MI E OF BREESE, Clinton, IL
Built 2004 Load: 42.1 t ADT: 6,000
IL 68 (DUNDEE RD)
GoodOver: RR - UP
0.1 M W US 14, Cook, IL
Built 2008 Load: 42.1 t ADT: 14,600
FAP-781 (ILL-33)
GoodOver: DOGWOOD CREEK
.5 MI E OBLONG, Crawford, IL
Built 1996 Load: 42.1 t ADT: 5,400
TR 189
GoodOver: Spring Point Creek
T9N R7E Sec 22, Cumberland, IL
Built 2002 Load: 42.1 t ADT: 20
TR 92
GoodOver: Drainage Ditch
620 N 800E, Douglas, IL
Built 2020 Load: 42.1 t ADT: 75
TR 302 2100th stre
GoodOver: DIETERICH CREEK
2 MI N ELLIOTSTOWN, Effingham, IL
Built 2021 Load: 42.1 t ADT: 100
FAS 719 (IL 185)
GoodOver: STREAM
WCL FARINA, Fayette, IL
Built 2011 Load: 42.1 t ADT: 2,350
FAP 869-IL 14
GoodOver: ANDY CR OVERFLOW
1 MI E CHRISTOPHER, Franklin, IL
Built 2001 Load: 42.1 t ADT: 4,950
FAI 80 EBL
GoodOver: E FORK NETTLE CR
1.3 MI W OF ILL 47, Grundy, IL
Built 1958 Load: 42.1 t ADT: 15,300
TR-174 Tabler Road
GoodOver: Trib. Aux Sable Crk
0.77 MI N US 6, Grundy, IL
Built 1987 Load: 42.1 t ADT: 625
IL 9/96
GoodOver: SPILLMAN CREEK
.5M W MERCER,PONTOOS, Hancock, IL
Built 1999 Load: 42.1 t ADT: 1,550
IL 96
GoodOver: DRAINAGE
1.4 M N OF US 136, Hancock, IL
Built 2013 Load: 42.1 t ADT: 1,100
FAS 431 (CH 30)
GoodOver: PANTHER CREEK
0.95 mi S FAS 429, Hancock, IL
Built 2013 Load: 42.1 t ADT: 225
IL 3-FAP 312
GoodOver: DRAINAGE DITCH
2 MI S FAS 312, Jackson, IL
Built 2002 Load: 42.1 t ADT: 1,400
IL 13 WB
GoodOver: PILES FORK CREEK
C'DALE W OF LEWIS LA, Jackson, IL
Built 2009 Load: 42.1 t ADT: 17,200
TR-1A
GoodOver: TRIB HARPER CREEK
2 MI N MT VERNON, Jefferson, IL
Built 1998 Load: 42.1 t ADT: 450
IL 109
GoodOver: TRIB TO OTTER CREEK
2.5MI SO JERSEYVILLE, Jersey, IL
Built 1999 Load: 42.1 t ADT: 3,950
IL 71 FAP 627
GoodOver: CREEK@HENNEPIN CANYN
3.18 MI. E OF IL 178, LaSalle, IL
Built 2007 Load: 42.1 t ADT: 1,700
ILL 18
GoodOver: DRAINAGE DITCH
3.03 MI E OF ILL 89, LaSalle, IL
Built 1999 Load: 42.1 t ADT: 3,050
TR 2
GoodOver: REDDICK RUN
0.32 MI S OF REDDICK, Livingston, IL
Built 2018 Load: 42.1 t ADT: 75
TR 175A
GoodOver: LONG CREEK
1 MI NE LONG CREEK, Macon, IL
Built 2013 Load: 42.1 t ADT: 375
TR 474A
GoodOver: Shaws Point Branch
2.5 S Standard City, Macoupin, IL
Built 2020 Load: 42.1 t ADT: 75
ILL 89
GoodOver: STREAM
4.28 MI S OF ILL 18, Marshall, IL
Built 2001 Load: 42.1 t ADT: 2,050
I 24 WB
GoodOver: NEW COLUMBIA DITCH
2 MI S OF JOHNSON CO, Massac, IL
Built 1971 Load: 42.1 t ADT: 10,600
Showing 23,801-23,850 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |