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
WOODBURN ROAD
Structurally DeficientOver: UNNAMED STREAM
5.5 MI. NE. BYRON, Ogle, IL
Built 1995 Load: 33.4 t ADT: 225
FRONTAGE RD
Structurally DeficientOver: BARRVILLE CR
2MI S SPARLAND, Peoria, IL
Built 1924 Load: 33.4 t ADT: 25
US 24/FAP 317
Structurally DeficientOver: INTER. STREAM
1.98 M E OF I-55, McLean, IL
Built 1959 Load: 33.7 t ADT: 4,200
FAS-2821
Structurally DeficientOver: MARTIN CREEK
0.5 MI W GEFF, Wayne, IL
Built 1986 Load: 33.7 t ADT: 350
GRAND AVE
Structurally DeficientOver: N BR CHICAGO RIVER
462 W & 530 N, Cook, IL
Built 1913 Load: 34.0 t ADT: 17,100
ARMSTRONG STREET
Structurally DeficientOver: I&M CANAL
150' E OF WASHINGTON, Grundy, IL
Built 1990 Load: 34.0 t ADT: 900
WILSON AVE
Structurally DeficientOver: N BR CHICAGO RIV
4600 N & 2800 W, Cook, IL
Built 1913 Load: 34.3 t ADT: 3,250
TR 87A
Structurally DeficientOver: SOLDIERS CREEK
0.25 MI E OF I-57, Kankakee, IL
Built 1971 Load: 34.3 t ADT: 2,350
WASHINGTON ST
Structurally DeficientOver: RR - UP
0.1 M E OF US 41, Lake, IL
Built 1961 Load: 34.3 t ADT: 16,400
TR 27
Structurally DeficientOver: MADDEN CREEK
1 MI S MANSFIELD, Piatt, IL
Built 1962 Load: 34.3 t ADT: 150
TR-3
Structurally DeficientOver: HURRICANE CREEK
3 MI E WAKEFIELD, Richland, IL
Built 1909 Load: 34.3 t ADT: 35
NB I-155
Structurally DeficientOver: MACKINAW RIVER
1mi N JCT I-155 /122, Tazewell, IL
Built 1970 Load: 34.3 t ADT: 6,900
CHICAGO RD
Structurally DeficientOver: LITTLE INDIAN CREEK
4 MI S OF WATERMAN, DeKalb, IL
Built 2003 Load: 34.7 t ADT: 1,000
FAS-819
Structurally DeficientOver: CASEY FORK
TEXICO, Jefferson, IL
Built 1974 Load: 34.7 t ADT: 1,350
I C TRAIL
Structurally DeficientOver: VIRGIL DRN DITCH #2
.7 M E of IL64, Kane, IL
Built 1974 Load: 34.7 t ADT: 375
FAU-2585 Meacham R
Structurally DeficientOver: WEST BRANCH OF SALT CREE
0.8 MI S. SCHAUMBURG RD., Cook, IL
Built 1985 Load: 35.0 t ADT: 15,900
US 6
Structurally DeficientOver: AUX SABLE CR
4.9 M E OF ILL 47, Grundy, IL
Built 1969 Load: 35.0 t ADT: 7,050
FAS-292 Gardner Ro
Structurally DeficientOver: W Fork Mazon River
0.05M E Dwight Road, Grundy, IL
Built 1982 Load: 35.0 t ADT: 1,000
TWP RD 58
Structurally DeficientOver: BEAR CK
3 MI EAST MERMET, Massac, IL
Built 1977 Load: 35.0 t ADT: 100
I- 94 BISHOP FORD
Structurally DeficientOver: RR - IHB & CSXT
1 M N IL 83, Cook, IL
Built 1949 Load: 35.3 t ADT: 166,900
JOE ORR RD
Structurally DeficientOver: THORN CREEK
0.5 M E IL 1, Cook, IL
Built 1958 Load: 35.3 t ADT: 17,500
WASHINGTON STREET
Structurally DeficientOver: UNION STATION TRACKS
100N 430W TO 500W, Cook, IL
Built 1913 Load: 35.3 t ADT: 9,600
ILL 154
Structurally DeficientOver: REND LAKE
0.9 MI W I-57, Franklin, IL
Built 1966 Load: 35.3 t ADT: 2,650
BRANSON SCH RD-TR2
Structurally DeficientOver: OTTER CREEK
NW-36-T4NR2E, Fulton, IL
Built 1981 Load: 35.6 t ADT: 25
TR 3
Structurally DeficientOver: ABANDONED RR
WEST OF US RTE 45, Gallatin, IL
Built 1900 Load: 35.6 t ADT: 10
OLD US 51 (FAP 322
Structurally DeficientOver: E FORK KASKASKIA OVF
5 MI N SANDOVAL, Marion, IL
Built 1920 Load: 35.6 t ADT: 25
SUMNER RD.
Structurally DeficientOver: BR. LEAF RIVER
3.5 N.W. LEAF RIVER, Ogle, IL
Built 1967 Load: 35.6 t ADT: 25
I-55/70;/64
Structurally DeficientOver: CSXRR,NSRR,TRRARR
E. St. Louis, St. Clair, IL
Built 1959 Load: 35.6 t ADT: 67,300
TR 24
Structurally DeficientOver: BIG CREEK
5.5 MI SW ALBION, Edwards, IL
Built 2002 Load: 36.0 t ADT: 75
US 150 FAS 2466
Structurally DeficientOver: MACKINAW RIVER
1.8 MI E OF ILL 117, Woodford, IL
Built 1985 Load: 36.0 t ADT: 2,550
TR 2A
Structurally DeficientOver: CEDAR CREEK
SW-6-T8NR1E, Fulton, IL
Built 1984 Load: 36.3 t ADT: 25
ELM STREET
Structurally DeficientOver: GIMLET CREEK
VILLAGE OF SPARLAND, Marshall, IL
Built 1982 Load: 36.3 t ADT: 150
SHEPARD RD
Structurally DeficientOver: BR OF SENACHWINE
N. CTR-6-T11NR9E, Peoria, IL
Built 1993 Load: 36.3 t ADT: 100
CONCORDIA CH RD/CH
Structurally DeficientOver: PRAIRIE DU PONT CR
0.50MI E ILL 163, St. Clair, IL
Built 1958 Load: 36.3 t ADT: 800
FAS 1420
Structurally DeficientOver: ELLISON DIVERSION DI
NE-12-T9NR6W, Henderson, IL
Built 1985 Load: 36.6 t ADT: 500
TR 41
Structurally DeficientOver: LANGAN CREEK
3W 0.5S OF CLIFTON, Iroquois, IL
Built 1985 Load: 36.6 t ADT: 50
QUEEN ANNE RD
Structurally DeficientOver: BR OF NIPPERSINK CR
2.4 MI N OF CHARLES, McHenry, IL
Built 1960 Load: 36.6 t ADT: 575
TR 174
Structurally DeficientOver: W BR PANTHER CREEK
2 MI E ROANOKE, Woodford, IL
Built 1981 Load: 36.6 t ADT: 200
GLIDDEN RD
Structurally DeficientOver: LEE SLOUGH CREEK
3120N 850E, DeKalb, IL
Built 1997 Load: 36.9 t ADT: 3,150
JOHNSON FARM RD
Structurally DeficientOver: BR LAMARSHCREEK
SW-17-T8NR7E, Peoria, IL
Built 1979 Load: 37.6 t ADT: 100
EAST WASHINGTON ST
Structurally DeficientOver: FARM CREEK
ILL 8 E. PEORIA, Tazewell, IL
Built 1992 Load: 37.6 t ADT: 6,950
RABBIT RUN RD-TR 3
Structurally DeficientOver: BIG CREEK
CTR-18-T5NR3E, Fulton, IL
Built 1992 Load: 37.9 t ADT: 50
LOST BRIDGE(FAU 73
Structurally DeficientOver: LAKE DECATUR
ACROSS SE LAKE DECAT, Macon, IL
Built 1961 Load: 37.9 t ADT: 9,000
ILL 111 SB
Structurally DeficientOver: CAHOKIA CANAL
0.24 MI N I-55/70, Madison, IL
Built 1961 Load: 37.9 t ADT: 4,050
TR 418
Structurally DeficientOver: DROWNING FORK
W.CTR-15-T7NR1W, McDonough, IL
Built 1976 Load: 37.9 t ADT: 250
ILL 18
Structurally DeficientOver: DRAINAGE DITCH
0.65 MI E OF ILL 26, Putnam, IL
Built 1932 Load: 37.9 t ADT: 2,100
WB I-74
Structurally DeficientOver: MACKINAW RIVER
1.26 MI E OF ILL 117, Woodford, IL
Built 1964 Load: 37.9 t ADT: 14,200
EB I-74
Structurally DeficientOver: MACKINAW RIVER
1.26 MI E OF ILL 117, Woodford, IL
Built 1964 Load: 37.9 t ADT: 14,200
TR 111
Structurally DeficientOver: DUTCHMAN CR. TRIB.
SW1/4 SEC13 T12S,R2E, Johnson, IL
Built 1978 Load: 38.2 t ADT: 225
CH 4(FAS 596)
Structurally DeficientOver: NORTH FORK HADLEY CR
2.5 M N BARRY, Pike, IL
Built 2012 Load: 38.2 t ADT: 575
Showing 27,651-27,700 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |