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
ILL 153
Structurally DeficientOver: MARY'S RIVER
1 MI N OF EDEN, Randolph, IL
Built 1934 Load: 22.4 t ADT: 1,600
TR 26
Structurally DeficientOver: INDIAN CREEK
2.5 MI NW ARENZVILLE, Cass, IL
Built 1971 Load: 22.7 t ADT: 275
Ramp to NB LL LSD
Structurally DeficientOver: LAND
500E.AND 200N., Cook, IL
Built 1986 Load: 22.7 t ADT: 4,800
WILCOX ST
Structurally DeficientOver: ADDISON CR
0.72 M E MANHEIM P20, Cook, IL
Built 1928 Load: 22.7 t ADT: 450
TR 16
Structurally DeficientOver: STREAM
2.10 MI S. CO. LINE, Iroquois, IL
Built 1964 Load: 22.7 t ADT: 25
TR 261
Structurally DeficientOver: SWAN CR
NW-19-T8NR2W, Warren, IL
Built 1966 Load: 22.7 t ADT: 50
FIRST ST
Structurally DeficientOver: OWL CREEK
CITY OF FISHER, Champaign, IL
Built 1970 Load: 23.0 t ADT: 1,250
FAS 1781
Structurally DeficientOver: BOND BRANCH
1.0 MI N CARLYLE, Clinton, IL
Built 1963 Load: 23.0 t ADT: 950
CARMAN RD
Structurally DeficientOver: DUGOUT CREEK
N EDGE LOMAX, Henderson, IL
Built 1954 Load: 23.0 t ADT: 2,000
FAS 2368 (CH-S51)
Structurally DeficientOver: JUDD CREEK
FAS 2368 OV JUDD CR, Marshall, IL
Built 1969 Load: 23.0 t ADT: 150
BAKER RD
Structurally DeficientOver: JACKSON CR
0.4 MI E US-52, Will, IL
Built 1923 Load: 23.0 t ADT: 75
TR 192A
Structurally DeficientOver: MOSQUITO CREEK OVRF
2.0 MI N MT AUBURN, Christian, IL
Built 1940 Load: 23.3 t ADT: 100
TR 0128
Structurally DeficientOver: PANTHER CREEK
1MI W TAYLORVILLE, Christian, IL
Built 1958 Load: 23.3 t ADT: 450
TR 74
Structurally DeficientOver: GEORGE BRANCH
3MI NW EDINBURG, Christian, IL
Built 1960 Load: 23.3 t ADT: 50
CANAL ST
Structurally DeficientOver: Land
500W-600S TO 1000S, Cook, IL
Built 1926 Load: 23.3 t ADT: 12,900
HARRISON STREET
Structurally DeficientOver: UNION STATION TRACKS
600S 360W TO 500W, Cook, IL
Built 1921 Load: 23.3 t ADT: 5,100
CH 3 (CH-S42)
Structurally DeficientOver: N BRANCH CROW CREEK
T29N-R1W-3PM SEC 21, Marshall, IL
Built 1959 Load: 23.3 t ADT: 75
TR 214
Structurally DeficientOver: MAUVAISE TERRE CREEK
2.5MISEJACKSONVILLE, Morgan, IL
Built 1969 Load: 23.3 t ADT: 300
MAHER ROAD
Structurally DeficientOver: BR SPOON RIVER
NW 1/4 18 T11NR6E, Peoria, IL
Built 1930 Load: 23.3 t ADT: 75
FAS 1636
Structurally DeficientOver: RICHLAND CREEK
1.5 MI. E SALISBURY, Sangamon, IL
Built 1952 Load: 23.3 t ADT: 200
TR 109 B
Structurally DeficientOver: E. BUREAU CREEK
3 MI. N.E. OF ZEARIN, Bureau, IL
Built 1901 Load: 23.7 t ADT: 25
TR 374
Structurally DeficientOver: PIKE CREEK
3.5 MI. NE LAMOILLE, Bureau, IL
Built 1960 Load: 23.7 t ADT: 200
WOLF RD
Structurally DeficientOver: FLAG CREEK
0.04 M S 79TH P10, Cook, IL
Built 1963 Load: 23.7 t ADT: 1,950
TR 48A
Structurally DeficientOver: STREAM
2760N, 1299E, Ford, IL
Built 1988 Load: 23.7 t ADT: 50
TR 2
Structurally DeficientOver: STREAM
TR 2 DN SEC 113, Iroquois, IL
Built 1959 Load: 23.7 t ADT: 50
TR-290
Structurally DeficientOver: Pike Creek
2.25MI S MARTINTON, Iroquois, IL
Built 1965 Load: 23.7 t ADT: 825
TR 239
Structurally DeficientOver: SPRING CREEK
N 33RD E 050, LaSalle, IL
Built 1964 Load: 23.7 t ADT: 225
FAS 644(CH 55)
Structurally DeficientOver: OVERFLOW SANGAMON R
3 MI S OF NIANTIC, Macon, IL
Built 1979 Load: 24.0 t ADT: 575
TR 103B (OLD IL 29
Structurally DeficientOver: IL RIVER TRIB
S EDGE OF MOSSVILLE, Peoria, IL
Built 1919 Load: 24.0 t ADT: 200
COUNTY HIGHWAY 16
Structurally DeficientOver: TRIB TO HOG CREEK
1.0 MI SO.FAP 841, Perry, IL
Built 1985 Load: 24.0 t ADT: 50
FAS 924
Structurally DeficientOver: BRADSHAW CR
3 MI SW OF LICK CR, Union, IL
Built 1981 Load: 24.0 t ADT: 2,150
US 30 WB
Structurally DeficientOver: DES PLAINES RIVER
0.8 M W OF IL 171, Will, IL
Built 1933 Load: 24.0 t ADT: 13,600
CORBIN ST
Structurally DeficientOver: KENT CREEK
0.15 MI N CUNNINGHAM, Winnebago, IL
Built 1937 Load: 24.0 t ADT: 950
TR 118
Structurally DeficientOver: COAL CREEK
2 MI SO OF BUDA, Bureau, IL
Built 1970 Load: 24.3 t ADT: 25
TR 269
Structurally DeficientOver: BEAR CREEK
0.75 MI W. PALMER, Christian, IL
Built 1922 Load: 24.3 t ADT: 50
FAS 788
Structurally DeficientOver: PRAIRE CREEK
1.0 MI N HOFFMANN, Clinton, IL
Built 1955 Load: 24.3 t ADT: 725
S. CALIFORNIA AVE
Structurally DeficientOver: SANITARY&SHIP CANAL
3300 S & 2800 W, Cook, IL
Built 1926 Load: 24.3 t ADT: 15,900
TR 189
Structurally DeficientOver: COON CREEK
2 M WSW CLINTON, De Witt, IL
Built 1962 Load: 24.3 t ADT: 150
TR-118
Structurally DeficientOver: CREEK
2 MI S MASON, Effingham, IL
Built 1909 Load: 24.3 t ADT: 35
TR-174A TABLER RD
Structurally DeficientOver: I & M CANAL
.02 MI NO CEMETERY R, Grundy, IL
Built 1961 Load: 24.3 t ADT: 500
TR 244
Structurally DeficientOver: WALNUT CREEK
NE-22-T13NR3E, Knox, IL
Built 1966 Load: 24.3 t ADT: 50
TR-211
Structurally DeficientOver: L Vermillion river
N 35TH E 350, LaSalle, IL
Built 1963 Load: 24.3 t ADT: 200
TR 402
Structurally DeficientOver: OTTER CREEK
E 24TH N 1550, LaSalle, IL
Built 1959 Load: 24.3 t ADT: 50
TR 207
Structurally DeficientOver: SWAFFORD CREEK
3.1 MI SW SHELBYVILE, Shelby, IL
Built 1909 Load: 24.3 t ADT: 25
OLD ILL 121
Structurally DeficientOver: MACKINAW RIVER
1mi N HOPEDALE JCT, Tazewell, IL
Built 1932 Load: 24.3 t ADT: 75
TR 156E
Structurally DeficientOver: STREAM
NE-1-T25NR4W, Tazewell, IL
Built 1967 Load: 24.3 t ADT: 1,450
IL 1 (HALSTED ST
Structurally DeficientOver: RR - IHB
1.1 M N IL 83, Cook, IL
Built 1927 Load: 24.6 t ADT: 13,700
TR-7 (Aiport Road)
Structurally DeficientOver: W FORK NETTLE CREEK
0.21 MI E OF TR 28, Grundy, IL
Built 1979 Load: 24.6 t ADT: 125
CTY HWY 8 (CH-C61)
Structurally DeficientOver: SENACHWINE CREEK
T13N-R8E-4PM SEC 36, Marshall, IL
Built 1969 Load: 24.6 t ADT: 150
GENESEE COURT
Structurally DeficientOver: ROCK CREEK
SO EDGE OF MORRISON, Whiteside, IL
Built 1981 Load: 24.6 t ADT: 1,100
Showing 27,401-27,450 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 |