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
DUNCAN RD.
Structurally DeficientOver: BR. SPOON RIVER
E.CTR-3-T11NR6E, Peoria, IL
Built 1991 Load: 9.4 t ADT: 250
ILL 145
Structurally DeficientOver: BAY CREEK
2.3 MI SO OF ILL 146, Pope, IL
Built 1983 Load: 9.4 t ADT: 1,750
OHIO ST
Structurally DeficientOver: SPRING CREEK
.125 MI N JACKSON ST, Will, IL
Built 1912 Load: 9.4 t ADT: 3,100
TR 224A
Structurally DeficientOver: SHORT CREEK
3.5 SE BURNSIDE, Hancock, IL
Built 1908 Load: 9.7 t ADT: 50
IL 17/91
Structurally DeficientOver: SPOON RIVER
.6 MI W OF WYOMING, Stark, IL
Built 1924 Load: 9.7 t ADT: 1,600
TR 275
Structurally DeficientOver: EMBARRAS RIVER
3 MI NW ASHMORE, Coles, IL
Built 1914 Load: 10.0 t ADT: 75
STONEBRIDGE TRAIL
Structurally DeficientOver: SPRING BROOK
500 FT S SPRNG GREEN, DuPage, IL
Built 1970 Load: 10.0 t ADT: 1,700
HINCKLEY ROAD
Structurally DeficientOver: E BRANCH BIG ROCK CR
0.5 MI W BIG ROCK, Kane, IL
Built 1976 Load: 10.0 t ADT: 200
TR 175
Structurally DeficientOver: CREEK
2.25 MI NE ST. ANNE, Kankakee, IL
Built 1970 Load: 10.4 t ADT: 75
TR 188
Structurally DeficientOver: BR CEDAR FK CR
NW-4-T9NR1W, Warren, IL
Built 1961 Load: 10.4 t ADT: 50
WARRENVILLE RD
Structurally DeficientOver: E.BRANCH DU PAGE RV
0.3 MI W IL 53, DuPage, IL
Built 1946 Load: 10.7 t ADT: 12,600
BRACEVILLE RD CH C
Structurally DeficientOver: CREEK
0.4 MI E OF TYNAN RD, Grundy, IL
Built 1963 Load: 10.7 t ADT: 1,450
CH-27 (JOHNSON RD)
Structurally DeficientOver: NIPPERSINK CR
0.6 M NE DURKEE RD, McHenry, IL
Built 1978 Load: 10.7 t ADT: 300
BRANDON ROAD
Structurally DeficientOver: DES PLAINES RIVER
BRANDON ROAD&DESP RV, Will, IL
Built 1932 Load: 10.7 t ADT: 6,200
CNTR GROVE/ FAU 88
Structurally DeficientOver: MCT BIKE TRAIL
.85 EAST 157, Madison, IL
Built 1989 Load: 11.0 t ADT: 12,600
TOWN LINE RD
Structurally DeficientOver: MARLEY CREEK
0.8 MI S I-80, Will, IL
Built 1978 Load: 11.0 t ADT: 3,250
GENEVA ROAD
Structurally DeficientOver: W.BRANCH DU PAGE RV.
0.1 MI W WINFIELD RD, DuPage, IL
Built 1941 Load: 11.3 t ADT: 14,300
GRAND RIDGE ROAD
Structurally DeficientOver: WAUPECON CREEK
0.35 MI W VERONA RD, Grundy, IL
Built 1939 Load: 11.3 t ADT: 1,150
TR 270
Structurally DeficientOver: BR OF OAT CREEK
6.0 MI SW ATKINSON, Henry, IL
Built 1890 Load: 11.3 t ADT: 25
GENESEE ST
Structurally DeficientOver: WAUKEGAN RIVER
ON GEN ST S OF WATER, Lake, IL
Built 1913 Load: 11.3 t ADT: 1,700
TR-120A
Structurally DeficientOver: RACCOON CREEK
4 MI NE XENIA, Clay, IL
Built 1922 Load: 11.7 t ADT: 25
LAKE SHORE DRIVE
Structurally DeficientOver: MAIN BR CHICAGO RIV
402 N & 520 E, Cook, IL
Built 1937 Load: 11.7 t ADT: 105,000
21ST ST
Structurally DeficientOver: ADDISON CR
0.22MI.W. OF 17TH AV, Cook, IL
Built 1974 Load: 11.7 t ADT: 900
TR 70
Structurally DeficientOver: BEAR CREEK
1.75 MI N PALMER, Christian, IL
Built 1916 Load: 12.0 t ADT: 20
25TH AVE
Structurally DeficientOver: SALT CREEK
1.8 M S I-290, Cook, IL
Built 1953 Load: 12.0 t ADT: 7,450
MS-1144 (WADE ST)
Structurally DeficientOver: RAVINE
1.5 M N LAKE COOK RD, Lake, IL
Built 1963 Load: 12.0 t ADT: 75
TR 0325
Structurally DeficientOver: DUTCH CREEK
1.5 MI NW SUMMER HIL, Pike, IL
Built 1962 Load: 12.0 t ADT: 25
ABE STREET
Structurally DeficientOver: SPRING CREEK
0.25 MI N JACKSON ST, Will, IL
Built 1911 Load: 12.0 t ADT: 400
CHICAGO HEIGHTS RD
Structurally DeficientOver: THORN CREEK
1.5 miles NE of IL-1, Cook, IL
Built 1982 Load: 12.3 t ADT: 6,550
TR 428 8.25 E
Structurally DeficientOver: S FORK SANG RIVER
2.2 MI E OF NEW CITY, Sangamon, IL
Built 1954 Load: 12.3 t ADT: 100
TR-38
Structurally DeficientOver: WOLF CREEK
2.5 MI NE BEECHER CY, Effingham, IL
Built 1909 Load: 12.6 t ADT: 50
TR 119 DIX
Structurally DeficientOver: DICKERSON SLOUGH
640E 50N, Ford, IL
Built 1974 Load: 12.6 t ADT: 75
FAS 1301 & CH 41
Structurally DeficientOver: GRANARY CREEK
2.2 MI N OF ILL 17, Kankakee, IL
Built 1976 Load: 12.6 t ADT: 625
TR 5
Structurally DeficientOver: BRUSHY FORK
1 MI NW BIRDS, Lawrence, IL
Built 1916 Load: 12.6 t ADT: 50
TR-26
Structurally DeficientOver: FLAT CREEK
1.5 MI NE VERNON, Marion, IL
Built 1909 Load: 12.6 t ADT: 150
TR 17A (CR 2300N)
Structurally DeficientOver: Jonathan Creek
1280E CR 2300N, Moultrie, IL
Built 1992 Load: 12.6 t ADT: 35
TR 2C
Structurally DeficientOver: Hooper Branch
2.42 MI S CO LN, Iroquois, IL
Built 1968 Load: 13.0 t ADT: 150
TR 434
Structurally DeficientOver: SUGAR CR
2.5 MI N. STOCKLAND, Iroquois, IL
Built 1921 Load: 13.6 t ADT: 50
MELUGINS GR-TR238
Structurally DeficientOver: DRAINAGE DITCH
1.0 MI W IL 251, Lee, IL
Built 1938 Load: 13.6 t ADT: 25
MACGREGOR RD
Structurally DeficientOver: FIDDYMENT CREEK
300 FT N MCCAMERON, Will, IL
Built 1960 Load: 13.6 t ADT: 1,650
TR 124
Structurally DeficientOver: LITTLE INDIAN
3 MI SW PHILADELPHIA, Cass, IL
Built 1966 Load: 13.9 t ADT: 75
TR-233
Structurally DeficientOver: NO BUSINESS CREEK
S RICHWOODS, Crawford, IL
Built 1909 Load: 13.9 t ADT: 25
TR 118 A
Structurally DeficientOver: STREAM
1.5 MI NW BELLRIDGE, Edgar, IL
Built 1900 Load: 13.9 t ADT: 50
TR-177A
Structurally DeficientOver: CREEK
2.5 MI NE WILLOW HIL, Jasper, IL
Built 1909 Load: 13.9 t ADT: 50
FAS 732
Structurally DeficientOver: OTTER LAKE
6 MI. W. GIRARD, Macoupin, IL
Built 1968 Load: 13.9 t ADT: 950
189TH STREET
Structurally DeficientOver: LANSING DRN DITCH
50FT W BURNHAM AVE, Cook, IL
Built 1970 Load: 14.3 t ADT: 700
Old US 34
Structurally DeficientOver: OLD TOM CREEK
.5 MI E ILL 94 (N), Henderson, IL
Built 1922 Load: 14.3 t ADT: 200
TR 282
Structurally DeficientOver: TRIB SUGAR CREEK
1.5 MI SE WATSEKA, Iroquois, IL
Built 1910 Load: 14.3 t ADT: 75
HARLEY RD
Structurally DeficientOver: UP RR
1.3 MI. S OF IL-38, Kane, IL
Built 1997 Load: 14.3 t ADT: 1,150
TOWN HALL RD-TR230
Structurally DeficientOver: DRAINAGE DITCH
1.5 MI W IL 251, Lee, IL
Built 1938 Load: 14.3 t ADT: 10
Showing 27,201-27,250 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |