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
SHAY RD - TR 70A
FairOver: DRAINAGE DITCH
E.CTR-28-T22NR5W, Tazewell, IL
Built 1963 Load: 25.6 t ADT: 25
TR 54
FairOver: SALT FORK
2 MI NW FAIRMOUNT, Vermilion, IL
Built 1965 Load: 25.6 t ADT: 375
TR 145
FairOver: WINDFALL CREEK
2.5 MI SE JAMESBURG, Vermilion, IL
Built 1971 Load: 25.6 t ADT: 250
FAIRCHILD(FAU 7002
FairOver: STONY CREEK
CITY OF DANVILLE, Vermilion, IL
Built 1905 Load: 25.6 t ADT: 5,250
FAP-332 (ILL-1)
FairOver: GRINDSTONE CREEK
.5 MI S BROWNSVILLE, White, IL
Built 1922 Load: 25.6 t ADT: 3,250
BURNS RD
FairOver: DRAINAGE DITCH
3 MI N OF ERIE, Whiteside, IL
Built 1958 Load: 25.6 t ADT: 250
FAS 903 (UNMARKED)
FairOver: LAKE CREEK
1 MI W JOHNSTON CITY, Williamson, IL
Built 1956 Load: 25.6 t ADT: 6,000
FAVOR ROAD
FairOver: GLEASON CREEK
1 MI W OWEN CENTER, Winnebago, IL
Built 1966 Load: 25.6 t ADT: 150
FAS-1359 (CH8)
FairOver: Mackinaw River
3 MI N CONGERVILLE, Woodford, IL
Built 1968 Load: 25.6 t ADT: 550
TR 41
FairOver: CLEAR CK
3.5 MI E ATLANTA, Logan, IL
Built 1970 Load: 25.8 t ADT: 75
TR 82
FairOver: HOLMAN CRK.
3.4 MI NE QUINCY, Adams, IL
Built 1915 Load: 25.9 t ADT: 100
TR 205
FairOver: ROCK CRK
2.6 MI SE URSA, Adams, IL
Built 1905 Load: 25.9 t ADT: 250
TR 97
FairOver: BRANCH OF DRY BRANCH
2.5MI NW MULBERRY GR, Bond, IL
Built 1917 Load: 25.9 t ADT: 25
TR 240
FairOver: AVERY BRANCH
3M SW MULBERRY GROVE, Bond, IL
Built 1915 Load: 25.9 t ADT: 10
GUSTAFSON RD
FairOver: BEAVER CREEK
3.5 MI NW BELVIDERE, Boone, IL
Built 1958 Load: 25.9 t ADT: 125
FAS 253/CH 10
FairOver: GREEN RIVER
7 MI. N. OF MINERAL, Bureau, IL
Built 1959 Load: 25.9 t ADT: 125
TR 193
FairOver: BRANCH E BUREAU CREE
1 1/2 MI E OF MALDEN, Bureau, IL
Built 1947 Load: 25.9 t ADT: 100
TOWNSHIP ROAD 112A
FairOver: ILL & MISS CANAL
3 MI NE SHEFFIELD, Bureau, IL
Built 1978 Load: 25.9 t ADT: 25
LINCOLN AVENUE
FairOver: ADAMS CREEK
EAST CENTER CHERRY, Bureau, IL
Built 1940 Load: 25.9 t ADT: 150
E BROOKVILLE ROAD
FairOver: MIDDLE CREEK
5 MI SE LANARK, Carroll, IL
Built 1974 Load: 25.9 t ADT: 225
CH 11 A
FairOver: STREAM
W OF THOMASBORO, Champaign, IL
Built 1936 Load: 25.9 t
TR 35
FairOver: SANGAMON RIVER
3.2 MI NE OF FISHER, Champaign, IL
Built 1969 Load: 25.9 t ADT: 325
TR 318
FairOver: STREAM
3 MI NW HOMER, Champaign, IL
Built 1967 Load: 25.9 t ADT: 350
TR 83
FairOver: BUCK CREEK
2.5 MI SSW PENFIELD, Champaign, IL
Built 1969 Load: 25.9 t ADT: 35
MS 8000
FairOver: UPPER SALT FORK DIT
SE EDGE OF RANTOUL, Champaign, IL
Built 1974 Load: 25.9 t ADT: 200
TR 265
FairOver: KASKASKIA DITCH
1.5 MI NW OF SADORUS, Champaign, IL
Built 1972 Load: 25.9 t ADT: 25
SPRINGFIELD(FAU 71
FairOver: BONEYARD CREEK
E OF COLER AVE, Champaign, IL
Built 1900 Load: 25.9 t ADT: 5,500
TR 18
FairOver: CLEAR CREEK
1.5 S OF SICILY, Christian, IL
Built 1926 Load: 25.9 t ADT: 100
FAS 688(CH 8)
FairOver: E MILL CREEK
1 MI NW MARSHALL, Clark, IL
Built 1957 Load: 25.9 t ADT: 2,150
TR-34A
FairOver: CREEK
2 MI W IOLA, Clay, IL
Built 1976 Load: 25.9 t ADT: 100
FAS 788
FairOver: LOST CREEK
1.5 MI N HOFFMANN, Clinton, IL
Built 1959 Load: 25.9 t ADT: 575
TR 211/AIRPORT RD
FairOver: QUEENS LAKE BR
.8 W AIRPORT, Clinton, IL
Built 1901 Load: 25.9 t ADT: 325
TR 148
FairOver: UNION DRAIN DIT #3
2.5 MI N CHARLESTON, Coles, IL
Built 1960 Load: 25.9 t ADT: 75
CH 7
FairOver: LITTLE BRANCH
.5 MI N LK PARADISE, Coles, IL
Built 1909 Load: 25.9 t ADT: 600
TR 22
FairOver: BRUSH CREEK
1 MI SW OF ETNA, Coles, IL
Built 1940 Load: 25.9 t ADT: 100
S 14TH (FAU 7695))
FairOver: KICKAPOO DRAIN DITCH
MATTOON, Coles, IL
Built 1953 Load: 25.9 t ADT: 2,100
IL 68 (DUNDEE RD)
FairOver: DES PLAINES RIVER
0.2 M E US 45, Cook, IL
Built 1932 Load: 25.9 t ADT: 23,500
LAKE ST
FairOver: DES PLAINES RIVER
1.5 M W IL 43, Cook, IL
Built 1931 Load: 25.9 t ADT: 9,700
US 12,20 (95TH ST)
FairOver: DRAINAGE DITCH
.02M W OF 54TH AV, Cook, IL
Built 1945 Load: 25.9 t ADT: 29,800
IL 83 (CAL-SAG RD
FairOver: NAVOJO CREEK
0.8 M E IL 43, Cook, IL
Built 1968 Load: 25.9 t ADT: 15,900
IL 50
FairOver: LAKE GEORGE OVERFLOW
1.6 M S OF US 30, Cook, IL
Built 1950 Load: 25.9 t ADT: 9,500
IL 43 (HARLEM AVE
FairOver: TINLEY CREEK
0.2 M S 143RD ST, Cook, IL
Built 1925 Load: 25.9 t ADT: 31,400
WESTERN AVE
FairOver: MIDLOTHIAN CR
1.4 M S of 127th St, Cook, IL
Built 1980 Load: 25.9 t ADT: 5,750
GRAND AVE
FairOver: SILVER CREEK
0.3 M W US 12,20, Cook, IL
Built 1930 Load: 25.9 t ADT: 24,200
171ST ST
FairOver: MIDLOTHIAN CREEK
0.03 MI. W 80TH AV, Cook, IL
Built 1951 Load: 25.9 t ADT: 16,400
OAKWOOD
FairOver: NORTH CR
0.2 M S 186TH P2, Cook, IL
Built 1964 Load: 25.9 t ADT: 950
MEADOWBROOK
FairOver: N BR CHICAGO RIV
0.2 E SUNSET RGE P14, Cook, IL
Built 1977 Load: 25.9 t ADT: 225
JACKSON ST
FairOver: ADDISON CR
0.72 M E MANHEIM P20, Cook, IL
Built 1928 Load: 25.9 t ADT: 450
32ND AVE
FairOver: ADDISON CR
0.6 M E US 45, Cook, IL
Built 1928 Load: 25.9 t ADT: 100
201 ST
FairOver: LANSING DITCH LYN TR
0.01 M E ILL 83 P2, Cook, IL
Built 1974 Load: 25.9 t ADT: 4,000
Showing 5,901-5,950 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 |