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
COUNTY HWY 23
FairOver: LICK CREEK
1.5 SE OF CURRAN, Sangamon, IL
Built 1963 Load: 40.5 t ADT: 750
FAI 72 EB
FairOver: WALNUT CREEK
1.2 M W CO LINE, Scott, IL
Built 1976 Load: 40.5 t ADT: 4,400
FAI 72 WB
FairOver: WALNUT CREEK
1.2 M W CO LINE, Scott, IL
Built 1976 Load: 40.5 t ADT: 4,400
PEARL CITY RD.
FairOver: YELLOW CR. BR.
PEARL CITY, Stephenson, IL
Built 1940 Load: 40.5 t ADT: 2,650
ILL 9
FairOver: PRAIRIE CREEK
E OF I-155, Tazewell, IL
Built 1928 Load: 40.5 t ADT: 2,700
US 150 (FAS 1512)
FairOver: MIDDLEFORK VERM RIV
2.6 MI W OF DANVILLE, Vermilion, IL
Built 1928 Load: 40.5 t ADT: 3,600
FAP 827(ILL-15)
FairOver: WABASH RIVER
MT CARMEL, Wabash, IL
Built 2010 Load: 40.5 t ADT: 6,800
SB US 67
FairOver: CEDAR CREEK
4 MI N OF ROSEVILLE, Warren, IL
Built 1995 Load: 40.5 t ADT: 4,000
OLD US 67
FairOver: TRIB TOWN BRANCH CR
0.5 MI N OF ILL 116, Warren, IL
Built 2002 Load: 40.5 t ADT: 800
TR 74
FairOver: WILLIAMS CR
1.25 MI S ILL 15, Washington, IL
Built 1925 Load: 40.5 t ADT: 25
US 6
FairOver: I & M CANAL
1.6 M W OF I-55, Will, IL
Built 1940 Load: 40.5 t ADT: 17,100
US 45
FairOver: HICKORY CREEK
2.2 M S OF I-80, Will, IL
Built 1991 Load: 40.5 t ADT: 33,700
OLD CHICAGO RD
FairOver: FORKED CREEK
1 M N OF IL 102, Will, IL
Built 1995 Load: 40.5 t ADT: 1,550
COURT ST.(MAN.MON.
FairOver: I.C.R.R.
0.1M.E.OF IL-50, Will, IL
Built 1990 Load: 40.5 t ADT: 4,550
FAU-8500 (CentPtWa
FairOver: Cedar Creek
.5 M W of Millsdale, Will, IL
Built 2009 Load: 40.5 t ADT: 8,350
FAU-8500 (CntPtWay
FairOver: Cedar Creek
0.3 M N of Millsdale, Will, IL
Built 2009 Load: 40.5 t ADT: 9,200
FAI-355
FairOver: N Fraction Run Crk
0.7M N of Bruce Rd, Will, IL
Built 2008 Load: 40.5 t ADT: 62,700
TR 140
FairOver: HURRICANE CREEK
0.5 MILE N OF COLP, Williamson, IL
Built 1981 Load: 40.5 t ADT: 150
FAS 1600 (CH 7)
FairOver: ROCK CREEK
1.4 MI S URSA, Adams, IL
Built 1984 Load: 40.8 t ADT: 650
I-180 NB
FairOver: BUREAU CREEK
1.2 MI S JCT ILL26, Bureau, IL
Built 1968 Load: 40.8 t ADT: 2,075
I-57(NB)
FairOver: Norfolk Southern Railway
SW OF TOLONO, Champaign, IL
Built 1963 Load: 40.8 t ADT: 11,550
FAS 2703(KIN-LOU)
FairOver: SUTTON CREEK
2.9 MI E MARION C L, Clay, IL
Built 1938 Load: 40.8 t ADT: 500
IL 394
FairOver: NORTH CREEK
2.4 M S I-80, Cook, IL
Built 1954 Load: 40.8 t ADT: 89,200
IL 59
FairOver: WETLANDS
0.3 M N OF IL 19, Cook, IL
Built 1997 Load: 40.8 t ADT: 36,200
MADISON ST
FairOver: S BR CHICAGO RIV
373 W MADISON, Cook, IL
Built 1922 Load: 40.8 t ADT: 12,100
FAS-1710 (US-40)
FairOver: LITTLE WABASH RIVER
2 MI W EFFINGHAM, Effingham, IL
Built 1977 Load: 40.8 t ADT: 5,950
TR-139
FairOver: DIETERICH CREEK
1 MI N DIETERICH, Effingham, IL
Built 1909 Load: 40.8 t ADT: 50
TR 71 B WALL
FairOver: STREAM
1780E,1000N, Ford, IL
Built 1963 Load: 40.8 t ADT: 25
ILL 14
FairOver: STREAM E OF BENTON
6.6 MI E BENTON, Franklin, IL
Built 2004 Load: 40.8 t ADT: 1,500
TR 45
FairOver: HURRICANE CK
1.7 MI SE WILMINGTON, Greene, IL
Built 1978 Load: 40.8 t ADT: 50
MINOOKA RD TR 3
FairOver: TRIB W FR NETTLE CR
0.57MI E. ROODS RD, Grundy, IL
Built 1991 Load: 40.8 t ADT: 175
ILL 149
FairOver: SIX MILE CREEK
0.25 MI.W. HURST, Jackson, IL
Built 1934 Load: 40.8 t ADT: 2,700
IL 25 (BROADWAY)
FairOver: INDIAN CREEK
3 M S OF IL 56, Kane, IL
Built 1956 Load: 40.8 t ADT: 18,900
I 57 SB
FairOver: Minnie Creek
4.3 M N Chebanse Int, Kankakee, IL
Built 1993 Load: 40.8 t ADT: 9,700
ILL 71
FairOver: ROADS CR
.5MI SW NEWARK, Kendall, IL
Built 1997 Load: 40.8 t ADT: 5,100
SHERIDAN RD
FairOver: DRAINAGE DITCH
0.44 N OF LAKE COOK, Lake, IL
Built 1925 Load: 40.8 t ADT: 2,000
BARCLAY BLVD.
FairOver: APTAKISIC CREEK
0.2M.S.APTAKISIC RD., Lake, IL
Built 1987 Load: 40.8 t ADT: 2,150
ILL 351 FAP 619
FairOver: LONE STAR CEMENT RR
2.55 MI S OF US 6, LaSalle, IL
Built 1995 Load: 40.8 t ADT: 3,400
FAI-55 SB
FairOver: BR W FORK MAZON R.
3 MI SW OF DWIGHT, Livingston, IL
Built 1972 Load: 40.8 t ADT: 10,450
FAI-55 NB
FairOver: BR W FORK MAZON R.
3 MI SW OF DWIGHT, Livingston, IL
Built 1972 Load: 40.8 t ADT: 10,450
TR 95
FairOver: DIAMOND CREEK
35 E, 2200 N, Livingston, IL
Built 1965 Load: 40.8 t ADT: 75
IL 3 SB
FairOver: WOODRIVER CREEK
W CITY LIMIT E ALTON, Madison, IL
Built 1992 Load: 40.8 t ADT: 21,100
LEE ROAD/ TR 397
FairOver: TRIB TO SUGAR CREEK
4.7 MILES S HIGHLAND, Madison, IL
Built 1985 Load: 40.8 t ADT: 225
US 51 SB (FAP 322)
FairOver: CROOKED CREEK
N OF CENTRAL CITY, Marion, IL
Built 1982 Load: 40.8 t ADT: 4,050
JACKSON ROAD
FairOver: COON CREEK
0.2 MI W BURMA RD, McHenry, IL
Built 1980 Load: 40.8 t ADT: 125
US 67
FairOver: EDWARDS RIVER
2 MI N OF VIOLA, Mercer, IL
Built 1998 Load: 40.8 t ADT: 5,300
ILL 64
FairOver: KILBUCK CR. TRIB
1.5 MI W DEKALB CO, Ogle, IL
Built 2005 Load: 40.8 t ADT: 4,300
TR 223
FairOver: THE SNY
3.0 MI SW HULL, Pike, IL
Built 1958 Load: 40.8 t ADT: 75
TR 205
FairOver: BLUE CREEK
5MI NE PITTSFIELD, Pike, IL
Built 1996 Load: 40.8 t ADT: 25
FAS 597
FairOver: Bull Run Creek
1.87 mi E FAS 596, Pike, IL
Built 2016 Load: 40.8 t ADT: 250
Showing 12,201-12,250 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.