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
TR 290
FairOver: TOWN FORK
SW-32-T7NR2W, McDonough, IL
Built 1977 Load: 38.2 t ADT: 25
US 14
FairOver: KISHWAUKEE RIVER
4 M SE OF IL 23, McHenry, IL
Built 1984 Load: 38.2 t ADT: 7,100
STREIT RD
FairOver: RUSH CREEK
0.4 MI W OF IL RT 23, McHenry, IL
Built 1985 Load: 38.2 t ADT: 700
US 136
FairOver: BRANCH SALT CREEK
12.17 M E OF US 51, McLean, IL
Built 1976 Load: 38.2 t ADT: 1,250
FAS-1574
FairOver: SANGAMON RIVER
4.0 MI W GREENVIEW, Menard, IL
Built 1980 Load: 38.2 t ADT: 200
TR 167
FairOver: STREAM
1 MI N OF FINDLEY, Moultrie, IL
Built 1969 Load: 38.2 t ADT: 20
ILL 72
FairOver: ROCK RIVER
E. EDGE OF BYRON, Ogle, IL
Built 1940 Load: 38.2 t ADT: 7,100
ILL 40
FairOver: CAMP RUN
1.5 M S CAMP GROVE, Peoria, IL
Built 2002 Load: 38.2 t ADT: 1,500
CO HWY 3
FairOver: REESE CREEK
1 MI E OF US 51, Perry, IL
Built 1987 Load: 38.2 t ADT: 400
IL 104
FairOver: FISHHOOK CREEK
.1M E ADAMS CO LINE, Pike, IL
Built 1975 Load: 38.2 t ADT: 775
FAI 72 WB
FairOver: NAPOLEON HOLLOW DRAW
4.7 MI W IL 100, Pike, IL
Built 1989 Load: 38.2 t ADT: 4,950
I-72 WB
FairOver: NAPOLEON HOLLOW DRAW
4.4M W IL 100 INTCHG, Pike, IL
Built 1989 Load: 38.2 t ADT: 4,950
TR 291
FairOver: BRANCH CRANE CREEK
5.0 S OF RUSHVILLE, Schuyler, IL
Built 1989 Load: 38.2 t ADT: 25
FAP 325(IL 16)
FairOver: KASKASKIA RIVER
IN SHELBYVILLE, Shelby, IL
Built 1975 Load: 38.2 t ADT: 6,500
FAP 766(IL 32)
FairOver: BRUSH CREEK
7 MI S OF IL 16, Shelby, IL
Built 1991 Load: 38.2 t ADT: 4,450
ILL 26
FairOver: STREAM
2 MI. S. OF FREEPORT, Stephenson, IL
Built 1977 Load: 38.2 t ADT: 4,750
S. PARK ROAD
FairOver: YELLOW CREEK
S. ENT TO KRAPE PARK, Stephenson, IL
Built 1934 Load: 38.2 t ADT: 125
DIEBLE RD - TR 268
FairOver: FARM CREEK
E-13-T26NR3W, Tazewell, IL
Built 1928 Load: 38.2 t ADT: 650
IL 1(FAP 332)
FairOver: N FORK VERMILION RIV
1.4 MI N ROSSVILLE, Vermilion, IL
Built 1940 Load: 38.2 t ADT: 4,550
NB US 67
FairOver: BIG NEGRO CREEK
3 MI S ILL 116, Warren, IL
Built 1996 Load: 38.2 t ADT: 4,900
TR 33
FairOver: BR LITTLE CROOKED CR
1.6 MI N NEW MINDEN, Washington, IL
Built 1916 Load: 38.2 t ADT: 50
TR-443C
FairOver: WALTON CREEK
2 MI NE SIMS, Wayne, IL
Built 1909 Load: 38.2 t ADT: 75
US RT 30
FairOver: ELKHORN CREEK
3.5 MI W ROCK FALLS, Whiteside, IL
Built 1940 Load: 38.2 t ADT: 5,300
MOLINE ROAD
FairOver: DRAINAGE DITCH
3 MI NE LYNDON, Whiteside, IL
Built 2006 Load: 38.2 t ADT: 1,400
YORKTOWN ROAD
FairOver: COUNTY DITCH NO 2
4.5 MI W OF TAMPICO, Whiteside, IL
Built 1955 Load: 38.2 t ADT: 100
I- 55 SB
FairOver: RR - CSXT
0.8 M S OF I-80, Will, IL
Built 1994 Load: 38.2 t ADT: 32,350
MARLEY ROAD
FairOver: METRA RR
0.3 M NO OF US30, Will, IL
Built 1984 Load: 38.2 t ADT: 5,000
FRITZ RD
FairOver: S FORK OTTER CREEK
0.7 MI E RT 70, Winnebago, IL
Built 1962 Load: 38.2 t ADT: 550
TR 215
FairOver: RED RIVER
1925 EAST 700 NORTH, Woodford, IL
Built 1974 Load: 38.2 t ADT: 150
FAS 361 (CH 5)
FairOver: BR. PANTHER CREEK
0.1 MI. N 1100N RD, Woodford, IL
Built 2002 Load: 38.2 t ADT: 225
IL 61
FairOver: BIG NECK CREEK
1.1M W IL 94, Adams, IL
Built 1996 Load: 38.6 t ADT: 850
TR 118
FairOver: URSA CREEK
1.5 MI W MENDON, Adams, IL
Built 1985 Load: 38.6 t ADT: 125
TR 150
FairOver: BRANCH HARTLINE CR
N EDGE OF ELCO, Alexander, IL
Built 1983 Load: 38.6 t ADT: 125
TR 105
FairOver: ROAD RUN CREEK
2 MI NE OLIVE BRANCH, Alexander, IL
Built 1992 Load: 38.6 t ADT: 100
TR 01
FairOver: MISSOURI CREEK BRANC
7 MI N OF TIMEWELL, Brown, IL
Built 1969 Load: 38.6 t
I-80 EB
FairOver: DRAINAGE DITCH
1.0 MI. W. OF IL 40, Bureau, IL
Built 1963 Load: 38.6 t ADT: 8,950
US 6
FairOver: E BUREAU CREEK
1.3 MI E OF I-180, Bureau, IL
Built 1981 Load: 38.6 t ADT: 2,450
TR 76
FairOver: MEPPIN CREEK
.5 M SO OFMEPPIN, Calhoun, IL
Built 1984 Load: 38.6 t ADT: 125
TR 54 FAS 581
FairOver: LOST CREEK
CL BLUFF SPRINGS, Cass, IL
Built 2007 Load: 38.6 t ADT: 275
I-74(EB)
FairOver: SALINE BRANCH
1 MI E OF US 45, Champaign, IL
Built 1960 Load: 38.6 t ADT: 15,200
I-74(WB)
FairOver: SALINE BRANCH
1 MI E OF US 45, Champaign, IL
Built 1960 Load: 38.6 t ADT: 15,200
FAP 709 (US 136)
FairOver: LONE TREE CREEK
5.5 MI W OF FISHER, Champaign, IL
Built 1932 Load: 38.6 t ADT: 1,200
FAP 328 (US 45)
FairOver: BUCK CREEK
3 MI N US 50 JCT, Clay, IL
Built 2008 Load: 38.6 t ADT: 5,100
GOLF RD
FairOver: W FK N BR CHI RIVER
0.8 M E IL 43, Cook, IL
Built 1928 Load: 38.6 t ADT: 33,400
KEDZIE AVE
FairOver: RR - BRC
AT 75TH ST, Cook, IL
Built 1936 Load: 38.6 t ADT: 18,800
IL 83 (ELMHURST R
FairOver: WELLER'S CREEK
0.8 M S US 14, Cook, IL
Built 2000 Load: 38.6 t ADT: 13,200
LAKE COOK RD
FairOver: BUFFALO CR
0.5 W BUFFALO GR P25, Cook, IL
Built 1978 Load: 38.6 t ADT: 29,400
FAS-698 (CH-19)
FairOver: BRANCH BIG CREEK
2.5 MI W HARDINVILLE, Crawford, IL
Built 1973 Load: 38.6 t ADT: 525
BRICKVILLE RD
FairOver: E BR KISHWAUKEE RV
2530N 1350E, DeKalb, IL
Built 1962 Load: 38.6 t ADT: 1,550
FAP-828 (CC-MONT B
FairOver: STREAM
S EDGE MONTROSE, Effingham, IL
Built 1909 Load: 38.6 t ADT: 2,650
Showing 11,651-11,700 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.