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
PLEASANT VALLEY RD
GoodOver: GRASSY CREEK
1 MI W OF STONEFORT, Williamson, IL
Built 2014 Load: 44.1 t ADT: 175
I-70
GoodOver: STREAM
1.1 MI E IL 49 INT, Clark, IL
Built 1968 Load: 44.4 t ADT: 22,800
TR 23
GoodOver: TRIB TO KASKASKIA RI
3 MI N COOKS MILLS, Coles, IL
Built 2021 Load: 44.4 t ADT: 125
OAKTON ST
GoodOver: N SHORE CHANNEL
3 M E I-94, Cook, IL
Built 1957 Load: 44.4 t ADT: 14,100
DEVON AVE
GoodOver: N BR CHICAGO RIVER
0.7 W US 14, Cook, IL
Built 1992 Load: 44.4 t ADT: 25,500
119TH ST
GoodOver: MILL CREEK
0.6 M E US 45, Cook, IL
Built 2012 Load: 44.4 t ADT: 1,250
SHALES PKWY
GoodOver: POPLAR CREEK
.2M S. OF BODE RD., Cook, IL
Built 2000 Load: 44.4 t ADT: 11,000
FAP-774 (ILL-32,33
GoodOver: LITTLE WABASH RIVER
2 MI NW EFFINGHAM, Effingham, IL
Built 1974 Load: 44.4 t ADT: 11,600
FAS 452 CH 2
GoodOver: Otter Creek
NW-32-T4NR2E, Fulton, IL
Built 2023 Load: 44.4 t ADT: 350
IL 267
GoodOver: BEAR CREEK
3.5 M N GREENFIELD, Greene, IL
Built 2011 Load: 44.4 t ADT: 2,500
IL 1
GoodOver: Gay Creek
0.16M S ofWellington, Iroquois, IL
Built 2022 Load: 44.4 t ADT: 2,200
TR 2 D
GoodOver: Sheldon Ditch #1
0.9 Mi S of CR1400S, Iroquois, IL
Built 1900 Load: 44.4 t ADT: 75
IL 13/127
GoodOver: BEAUCOUP CREEK
2 MI S OF IL 4, Jackson, IL
Built 2017 Load: 44.4 t ADT: 4,500
FAP 42-IL 13/127
GoodOver: UNNAMED STREAM
1 MI SO VERGENNES, Jackson, IL
Built 1999 Load: 44.4 t ADT: 4,000
N TOLLE LANE TR384
GoodOver: PANTHER FORK CREEK
5 MI E OF DIX, Jefferson, IL
Built 2016 Load: 44.4 t ADT: 75
ILL 100 (SB)
GoodOver: PIASA CREEK
.7 MI N CLIFTON TERR, Jersey, IL
Built 1997 Load: 44.4 t ADT: 5,150
US 67 SB
GoodOver: PIASA CREEK
7.6 MI S JERSEYVILLE, Jersey, IL
Built 2012 Load: 44.4 t ADT: 12,100
IL 72 (MAIN ST)
GoodOver: FOX RIVER
0.3 M E OF IL 31, Kane, IL
Built 1996 Load: 44.4 t ADT: 29,200
IL 25 & STEARNS W
GoodOver: E BR BREWSTER CREEK
.15 M W of Dunham Rd, Kane, IL
Built 2009 Load: 44.4 t ADT: 5,350
PEORIA & OTTAWA RD
GoodOver: BAILEY CR
0.11 mi W IL251, LaSalle, IL
Built 1940 Load: 44.4 t ADT: 325
I-88 EB
GoodOver: BEACH CREEK
1 MI SW OGLE CO LN, Lee, IL
Built 1974 Load: 44.4 t ADT: 8,050
FAS 344 CH 23
GoodOver: GOOSEBERRY CRK
1.52 MI E OF IL 47, Livingston, IL
Built 1997 Load: 44.4 t ADT: 225
TR 244
GoodOver: DRAINAGE DITCH
2580 N, 2900 E, Livingston, IL
Built 2022 Load: 44.4 t ADT: 50
TR 228
GoodOver: CONRAIL RR
1MI SE OF TROY, Madison, IL
Built 1997 Load: 44.4 t ADT: 125
US 14
GoodOver: MOKELER CREEK
US 14 N OF IL 173, McHenry, IL
Built 2006 Load: 44.4 t ADT: 12,400
FAS 1517(US 150)
GoodOver: S BRANCH SALT CREEK
1 MI E FARMER CITY, Piatt, IL
Built 2012 Load: 44.4 t ADT: 1,300
US 54
GoodOver: ATLAS CREEK
.25M E IL 96, Pike, IL
Built 2001 Load: 44.4 t ADT: 2,250
ILL 29
GoodOver: SENACHWINE CR TRIB
1 MI N OF PUTNAM, Putnam, IL
Built 1963 Load: 44.4 t ADT: 3,200
TR 138
GoodOver: Panther Creek Trib
0.6 mi S IL 104, Sangamon, IL
Built 2017 Load: 44.4 t ADT: 75
LARAWAY ROAD
GoodOver: N. BR. JACKSON CREEK
0.5 MI E GOUGAR ROAD, Will, IL
Built 1965 Load: 44.4 t ADT: 8,700
STONERIDGE DR
GoodOver: SPRING CREEK
0.1 MI N SPRG CK RD, Winnebago, IL
Built 2011 Load: 44.4 t ADT: 100
CH 8
GoodOver: MAPLE GROVE CREEK
2 MI N OF WYANET, Bureau, IL
Built 2021 Load: 44.7 t ADT: 700
ARGO FAY ROAD
GoodOver: STREAM
1.5 MI SW ARGO FAY, Carroll, IL
Built 2009 Load: 44.7 t ADT: 1,600
IL 29
GoodOver: PANTHER CREEK
0.4 MI NW IL 104, Christian, IL
Built 2005 Load: 44.7 t ADT: 12,200
BALLARD RD
GoodOver: CREEK
0.5 M E OF US 12, Cook, IL
Built 2022 Load: 44.7 t ADT: 5,000
WILLOW SPRINGS RD
GoodOver: I & M CANAL - OLD
2.1 M S I-55, Cook, IL
Built 1996 Load: 44.7 t ADT: 19,000
WALDRON DRIVE
GoodOver: PEDESTRIAN UNDERPASS
400E 1500S, Cook, IL
Built 1997 Load: 44.7 t ADT: 775
EMERSON AVE
GoodOver: N SHORE CHANNEL
0.5 M E MCCORMICK BL, Cook, IL
Built 2008 Load: 44.7 t ADT: 10,600
Central Street
GoodOver: North Shore Channel
0.6 Mi E of Green Bay, Cook, IL
Built 2022 Load: 44.7 t ADT: 3,250
US 40 (FAS 1707)
GoodOver: RANGE CREEK
.5 MI W VEVEY PARK, Cumberland, IL
Built 2015 Load: 44.7 t ADT: 2,250
CREGO ROAD
GoodOver: BR OF SOMONAUK CREEK
1 MI E/IL 23 N.US 30, DeKalb, IL
Built 2023 Load: 44.7 t ADT: 50
MC GIRR ROAD
GoodOver: BATTLE CREEK
1300N 1640E, DeKalb, IL
Built 2021 Load: 44.7 t ADT: 450
Warrenville Road
GoodOver: W Br of DuPage River
.2M W of Winfield Rd, DuPage, IL
Built 2013 Load: 44.7 t ADT: 3,200
FAU-1397 ST CHRLS
GoodOver: SALT CREEK
0.2 MI W OF ILL 83, DuPage, IL
Built 1979 Load: 44.7 t ADT: 16,400
IL 154-FAP 841
GoodOver: LITTLE INDIAN CREEK
2 MI W IL 148, Franklin, IL
Built 2002 Load: 44.7 t ADT: 2,300
ILL 34
GoodOver: STREAM E OF BENTON
0.9 MI E BENTON, Franklin, IL
Built 2010 Load: 44.7 t ADT: 3,850
BUCKEYE CHURCH TR
GoodOver: SHOAL CREEK
Sec 1, T6N R1E 4th P, Fulton, IL
Built 2005 Load: 44.7 t ADT: 25
TR 147
GoodOver: JOHNNY RUN
RANSOM ROAD, Grundy, IL
Built 2012 Load: 44.7 t ADT: 50
CH-1
GoodOver: TRIB BEAVER CREEK
4.25 MI N DOLAN LAKE, Hamilton, IL
Built 1994 Load: 44.7 t ADT: 175
ILL ROUTE 82
GoodOver: STREAM
1.7 MI N JCT ILL 81, Henry, IL
Built 2009 Load: 44.7 t ADT: 1,200
Showing 24,151-24,200 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 |