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
Allen Road
GoodOver: Hamshire Creek
1 Mi W of Hamshire, Kane, IL
Built 2016 Load: 61.9 t ADT: 1,050
ILL 100
GoodOver: PANTHER CREEK
5 MI N KAMPSVILLE, Calhoun, IL
Built 1995 Load: 62.2 t ADT: 450
IL 173
GoodOver: BOAT CHANNEL
2.5 M W OF IL 59, Lake, IL
Built 1931 Load: 62.2 t ADT: 11,200
Decatur Muni 2755
GoodOver: Creek
0.14 mi. E. IL 121, Macon, IL
Built 2015 Load: 62.2 t ADT: 200
IL 96
GoodOver: WALNUT CREEK
.67M N I-72/HULL INT, Pike, IL
Built 1993 Load: 62.2 t ADT: 575
FAP 823 (IL 15)
GoodOver: STREAM
1 MI W EDWARDS CO L, Wayne, IL
Built 2010 Load: 62.2 t ADT: 2,500
US 52 AND ILL 64
GoodOver: CARROLL CREEK
3.1 MI. EAST OF IL78, Carroll, IL
Built 2014 Load: 62.5 t ADT: 2,950
TR 244 (2000 E RD)
GoodOver: Brushy Branch
0.20 mi N TR 217A, Christian, IL
Built 2022 Load: 62.5 t ADT: 50
IL 23
GoodOver: KISHWAUKEE RIVER
0.7 M N OF IL 176, McHenry, IL
Built 2009 Load: 62.5 t ADT: 6,450
ILL 122
GoodOver: STREAM
6.45 MI W IL 9, McLean, IL
Built 1999 Load: 62.5 t ADT: 1,250
IL 267
GoodOver: BRUSHY FORK
S OF JACKSONVILLE, Morgan, IL
Built 2006 Load: 62.5 t ADT: 4,100
US 45
GoodOver: BRUSH CREEK
1MI S OF TEXAS CITY, Saline, IL
Built 2016 Load: 62.5 t ADT: 3,650
TR 1
GoodOver: Trib to Lake Mattoon
3.25 MI N Neoga, Coles, IL
Built 2023 Load: 62.9 t ADT: 50
IL 54
GoodOver: Big Four Ditch
7.62M N of IL 9, Ford, IL
Built 2016 Load: 62.9 t ADT: 1,650
IL 37
GoodOver: STREAM
1.5 MI S IL 148, Jefferson, IL
Built 2022 Load: 62.9 t ADT: 7,250
STEARNS RD EB
GoodOver: N ARM BREWSTER CRK
0.3 MI W OF IL 25, Kane, IL
Built 2010 Load: 62.9 t ADT: 15,400
IL 116 (FAP669)
GoodOver: KICKAPOO CREEK TRIB
SE CL BELLEVUE, Peoria, IL
Built 1998 Load: 62.9 t ADT: 4,600
CANTON FARM RD
GoodOver: TRIB DUPAGE RIVER
1.6M W OF I59, Will, IL
Built 2003 Load: 62.9 t ADT: 12,300
LUANNA DRIVE
GoodOver: PRIVATE LAKE
LAKE LEANNA SUB., Winnebago, IL
Built 1978 Load: 62.9 t ADT: 200
TR 170-B
GoodOver: BR W. BUREAU CREEK
1 MI NE OF WYANET, Bureau, IL
Built 1998 Load: 63.2 t ADT: 25
IL 83 (CAL SAG RD
GoodOver: TINLEY CREEK
AT 127TH ST, Cook, IL
Built 2022 Load: 63.2 t ADT: 24,900
FAP 781(IL 33)
GoodOver: STREAM
1 MI E IL 130, Jasper, IL
Built 1998 Load: 63.2 t ADT: 3,500
I 24 EB
GoodOver: LITTLE CACHE CREEK
0.6 MI N. OF ILL 146, Johnson, IL
Built 1971 Load: 63.2 t ADT: 10,650
IL 123
GoodOver: Richland Creek
0.60 mi N IL 125, Sangamon, IL
Built 2021 Load: 63.2 t ADT: 1,050
TR 193
GoodOver: CREEK
2 MI SE OBLONG, Crawford, IL
Built 2019 Load: 63.5 t ADT: 75
SHERIDAN RD
GoodOver: SMALL STREAM
0.1 M S DEERPATH RD, Lake, IL
Built 2002 Load: 63.5 t ADT: 3,150
TR 33
GoodOver: BURNT BRANCH
NE-16-T15NR5W, Mercer, IL
Built 1984 Load: 63.5 t ADT: 50
IL 62 ALGONQUIN R
GoodOver: SALT CREEK
0.7 M E IL 53, Cook, IL
Built 1900 Load: 63.8 t ADT: 25,200
US 12,45 MANNHEIM
GoodOver: ADDISON CR
565' N of Lake St., Cook, IL
Built 2018 Load: 63.8 t ADT: 38,900
FAP 781(IL 33)
GoodOver: LAMOTTE CREEK
SW CL PALESTINE, Crawford, IL
Built 2017 Load: 63.8 t ADT: 1,000
IL 108
GoodOver: EAST TAYLOR CREEK BR
9.4 M E CARROLTON, Greene, IL
Built 2009 Load: 63.8 t ADT: 1,000
IL 176
GoodOver: DRAINAGE DITCH
0.8M W OF IL-59,US12, Lake, IL
Built 2012 Load: 63.8 t ADT: 18,400
UNION ROAD
GoodOver: TRIB TO GREEN RIVER
.05MI E DOWNEY RD, Lee, IL
Built 2022 Load: 63.8 t ADT: 75
I-55
GoodOver: STREAM
2 MI N OF MCL CO LN, Livingston, IL
Built 1977 Load: 63.8 t ADT: 21,000
FAI 70
GoodOver: SUGAR CREEK
0.3 M W BOND CO, Madison, IL
Built 1965 Load: 63.8 t ADT: 26,900
FAS 908 (CH 11)
GoodOver: TRIB TO HURRICANE CR
0.5 MI E OF COLP, Williamson, IL
Built 2001 Load: 63.8 t ADT: 5,700
I-72 / US 36
GoodOver: LITTLE SPRING CR BR
.8M W WABASH INTCHG, Sangamon, IL
Built 1975 Load: 64.2 t ADT: 17,100
SB RELOCATED IL 3
GoodOver: LAND BRIDGE
UNDER MLK APPR BRDGE, St. Clair, IL
Built 2015 Load: 64.2 t ADT: 1,800
FAP 749(IL 133)
GoodOver: KASKASKIA RIVER
E OF CHESTERVILLE, Douglas, IL
Built 2002 Load: 64.5 t ADT: 3,950
IL 255 NB
GoodOver: WEST FK WOODRIVER CK
1.2 W FOSTERBURG RD, Madison, IL
Built 2006 Load: 64.5 t ADT: 14,900
US 51 (FAP 322)
GoodOver: N FORK KASKASKIA RIV
1.5 MI S VERNON, Marion, IL
Built 2010 Load: 64.5 t ADT: 2,750
FAS 494 CH 21
GoodOver: SALT CREEK
2.0 SE LEROY, McLean, IL
Built 1990 Load: 64.5 t ADT: 700
US 6/34 FAP 613
GoodOver: COAL CREEK
W.EDGE OF SHEFFIELD, Bureau, IL
Built 1981 Load: 64.8 t ADT: 2,050
Kostner Avenue
GoodOver: Stony Creek
0.20 MI N 123RD ST, Cook, IL
Built 1983 Load: 64.8 t ADT: 1,375
IL 1
GoodOver: ROCK CREEK
3.3 MI S GALLATIN CO, Hardin, IL
Built 2015 Load: 64.8 t ADT: 1,100
FAS 481 CH 32
GoodOver: MIDDLE FORK SUGAR CR
0.5 MI ESE STANFORD, McLean, IL
Built 2022 Load: 64.8 t ADT: 900
IL 154
GoodOver: MARY'S RIVER
3.5M W PERRY CO.LINE, Randolph, IL
Built 1994 Load: 64.8 t ADT: 2,550
FAS248 (PIG FARM R
GoodOver: SENACHWINE CREEK
4 MI. SE TISKILWA, Bureau, IL
Built 1994 Load: 65.1 t ADT: 400
IL 100
GoodOver: CRAWFORD CREEK
8.1 MI N HARDIN, Calhoun, IL
Built 2009 Load: 65.1 t ADT: 1,250
ILL 115
GoodOver: HORSE CREEK
15.1 MI W OF US 45, Kankakee, IL
Built 2004 Load: 65.1 t ADT: 2,000
Showing 25,251-25,300 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 |