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 500
GoodOver: PAINTER CREEK
JUST S OF BISMARCK, Vermilion, IL
Built 1993 Load: 45.0 t ADT: 2,300
IL 251 NB
GoodOver: KILBUCK CREEK
.6 MI N. OGLE CO.LN., Winnebago, IL
Built 1989 Load: 45.0 t ADT: 4,450
IL 173
GoodOver: PISCASAW CREEKTRIB.
AT MCHENRY CO. LN., Boone, IL
Built 2001 Load: 45.4 t ADT: 5,000
FAS 245/CH 9
GoodOver: BR. WEST BUREAU CRK.
4.5 MI. N. WYANET, Bureau, IL
Built 1995 Load: 45.4 t ADT: 475
IL 29
GoodOver: DRAINAGE
0.29 mi SE FAS 1634, Christian, IL
Built 2012 Load: 45.4 t ADT: 8,100
IL 127
GoodOver: KASKASKIA RIVER
2.5 M SE CARLYLE, Clinton, IL
Built 2015 Load: 45.4 t ADT: 3,550
IL 177/160
GoodOver: KASKASKIA OVERFLOW
1.2M E of NEW MEMPHI, Clinton, IL
Built 1997 Load: 45.4 t ADT: 1,750
SBI 16(FAS 1669)
GoodOver: RILEY CREEK BRANCH
.75 MI NW OF LOXA, Coles, IL
Built 1986 Load: 45.4 t ADT: 2,200
I- 55 EB RMP US41
GoodOver: MCCORMICK PARKING
1.5 M E of I-94, Cook, IL
Built 2017 Load: 45.4 t ADT: 33,600
135TH ST
GoodOver: TINLEY CREEK
1.5 M W OF IL 50, Cook, IL
Built 2003 Load: 45.4 t ADT: 12,800
TOWER RD
GoodOver: SKOKIE RIVER
0.2 M E I-94, Cook, IL
Built 2002 Load: 45.4 t ADT: 5,100
GRANVILLE AV
GoodOver: SILVER CREEK
0.15 M S of Grand Av, Cook, IL
Built 2004 Load: 45.4 t ADT: 375
FAP 116 (IL 130)
GoodOver: LOST CREEK
7 MI S COLES CO LINE, Cumberland, IL
Built 2010 Load: 45.4 t ADT: 2,950
US 45(FAS 1671)
GoodOver: HAYES BRANCH
4.2 MI N OF TUSCOLA, Douglas, IL
Built 1924 Load: 45.4 t ADT: 3,050
FERRY RD
GoodOver: EJ&E RR
1.4 MI W IL 59, DuPage, IL
Built 2003 Load: 45.4 t ADT: 5,000
WEST ENTRANCE ROAD
GoodOver: W. BR. DUPAGE RIVER
0.06 MI E RAYMOND DR, DuPage, IL
Built 2018 Load: 45.4 t ADT: 400
FAP-750 (ILL-185)
GoodOver: HICKORY CREEK
5 MI SE US 40, Fayette, IL
Built 1988 Load: 45.4 t ADT: 1,000
ILL 115
GoodOver: N FK VERMILLION R.
5.07 MI S OF ILL 116, Ford, IL
Built 1981 Load: 45.4 t ADT: 675
ILL 115
GoodOver: KELLY CREEK
2.30 MI S OF ILL 116, Ford, IL
Built 1981 Load: 45.4 t ADT: 675
ILL 9
GoodOver: SUGAR CREEK
5.71 MI E US 45, Ford, IL
Built 1997 Load: 45.4 t ADT: 1,900
IL 116
GoodOver: LITTLERS CR
2.4 MI W FARMINGTON, Fulton, IL
Built 2009 Load: 45.4 t ADT: 1,350
FAS-272 Braceville
GoodOver: MAZON RIVER
0.2MI E at Gorman Rd, Grundy, IL
Built 1970 Load: 45.4 t ADT: 1,450
US 136 WB
GoodOver: PRAIRIE CREEK
2.5 MI E CARTHAGE, Hancock, IL
Built 2007 Load: 45.4 t ADT: 4,000
US 136 EB
GoodOver: PRAIRIE CREEK
2.5 MI E CARTHAGE, Hancock, IL
Built 2007 Load: 45.4 t ADT: 4,000
CH-3
GoodOver: KANKAKEE RIVER
AROMA PARK, Kankakee, IL
Built 1914 Load: 45.4 t ADT: 2,800
IL 47
GoodOver: West Aux Sable Creek
0.66 M S of US 52, Kendall, IL
Built 2018 Load: 45.4 t ADT: 5,550
CENTRAL AV
GoodOver: RAVINE
0.1 W LAKE MICHIGAN, Lake, IL
Built 2022 Load: 45.4 t ADT: 1,200
ILL 157
GoodOver: BURDICK BRANCH
3.5 N I-70, Madison, IL
Built 1933 Load: 45.4 t ADT: 6,300
IL 111 NB
GoodOver: CAHOKIA CANAL
.5MI N JCT 70, Madison, IL
Built 2002 Load: 45.4 t ADT: 4,050
US 67
GoodOver: TRIB S BR PIASA CRK
1.4MI S JERSEY CO LN, Madison, IL
Built 1988 Load: 45.4 t ADT: 11,200
FAP 315
GoodOver: DITCH
SW OF LEROY, McLean, IL
Built 2010 Load: 45.4 t ADT: 1,600
TR 348
GoodOver: BUCK CREEK
0.5 MI SE GRIDLEY, McLean, IL
Built 2000 Load: 45.4 t ADT: 100
C.H. 12
GoodOver: Trib Mackinaw River
3.2 MI SSE Clarksvil, McLean, IL
Built 2013 Load: 45.4 t ADT: 325
ILL 78
GoodOver: LITTLE INDIAN CR
0.2 S CASS CO LINE, Morgan, IL
Built 2005 Load: 45.4 t ADT: 1,900
US 36(FAP 323)
GoodOver: DITCH #4
2.4 MI W HAMMOND, Moultrie, IL
Built 2016 Load: 45.4 t ADT: 2,050
CHANA RD
GoodOver: BR. OF KYTE RIVER
3.5 MI. N. ASHTON, Ogle, IL
Built 1999 Load: 45.4 t ADT: 425
CH-22 Akron Road
GoodOver: Br Kickapoo Creek
NE1/4 35 AKRON TWP, Peoria, IL
Built 2018 Load: 45.4 t ADT: 275
ILL 10(FAP 721)
GoodOver: GOOSE CREEK
E EDGE OF DELAND, Piatt, IL
Built 1932 Load: 45.4 t ADT: 1,950
IL 4
GoodOver: PLUM CREEK
1.7 MI S OF IL 13, Randolph, IL
Built 2011 Load: 45.4 t ADT: 4,450
FAS 1857-CH7
GoodOver: PRAIRIE DU ROCHER CR
PRAIRIE DU ROCHER, Randolph, IL
Built 2009 Load: 45.4 t ADT: 650
HARCO BLACKTOP
GoodOver: STREAM
1.5 MI S OF ILL 34, Saline, IL
Built 2009 Load: 45.4 t ADT: 1,400
MS 7490A Drawbridg
GoodOver: Jacksonville Branch
0.08 mi S Wabash Av, Sangamon, IL
Built 2021 Load: 45.4 t ADT: 1,600
TR 455
GoodOver: Pond Creek
1.0 W Fairfield Muni, Wayne, IL
Built 2016 Load: 45.4 t ADT: 50
US 6
GoodOver: ROCK RUN CREEK
1.3 M E I-55, Will, IL
Built 2003 Load: 45.4 t ADT: 10,250
COMLY ROAD
GoodOver: GROVE CREEK
2 MI S OF PECATONICA, Winnebago, IL
Built 1987 Load: 45.4 t ADT: 150
ROCKTON RD
GoodOver: DRY RUN CREEK
.5 MI E IL 251, Winnebago, IL
Built 2013 Load: 45.4 t ADT: 9,150
CH 48
GoodOver: WALNUT FORK
5.2 M NE LIBERTY, Adams, IL
Built 1959 Load: 45.7 t ADT: 750
I-80 EB
GoodOver: BN RR
2.6 MI W JCT I-180, Bureau, IL
Built 2012 Load: 45.7 t ADT: 9,300
I-80 WB
GoodOver: BN RR
2.6 MI W JCT I-180, Bureau, IL
Built 2012 Load: 45.7 t ADT: 9,300
COUNTY HIGHWAY NO
GoodOver: ADAMS CREEK
2.0 MI NW LADD, Bureau, IL
Built 2008 Load: 45.7 t ADT: 600
Showing 24,251-24,300 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 |