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
LAKEVIEW DRIVE
FairOver: EUREKA LAKE
SW1/4-13-T26NR2W, Woodford, IL
Built 2003 Load: 32.4 t ADT: 150
MAIN ST WASHBURN
FairOver: SNAG CREEK
0.1 MILE N.WATER ST, Woodford, IL
Built 1994 Load: 32.4 t ADT: 425
CHURCH STREET
FairOver: SNAG CREEK
.2 MI W OF ILL 89, Woodford, IL
Built 1999 Load: 32.4 t ADT: 100
PATTEN ROAD
FairOver: PAVED ROAD
0.5 KM N OF FINLEY ROAD, Lake, IL
Built 2005 Load: 32.6 t ADT: 1,050
CONNECICUT AVE
FairOver: CREEK
50M E. OF MISSISSIPPI ST., Lake, IL
Built 1957 Load: 32.6 t ADT: 210
US 24
FairOver: HOMAN CREEK
.05M N 12TH ST., Adams, IL
Built 1968 Load: 32.7 t ADT: 3,800
CH 3
FairOver: CREEK
6.5 MI NE OF QUINCY, Adams, IL
Built 1940 Load: 32.7 t ADT: 325
I-180
FairOver: ILLINOIS RIVER
1.82 MI E OF ILL 26, Bureau, IL
Built 1969 Load: 32.7 t ADT: 2,900
ILL 64 AND US 52
FairOver: STRADDLE CREEK
3.4 MI E JCT ILL 78, Carroll, IL
Built 1952 Load: 32.7 t ADT: 2,950
FAP 709 (US 136)
FairOver: E BR SALT FORK RIVER
3 MI E OF RANTOUL, Champaign, IL
Built 1988 Load: 32.7 t ADT: 3,750
TR 196 A
FairOver: OHLMAN BRANCH
1 MI NW OHLMAN, Christian, IL
Built 1964 Load: 32.7 t ADT: 100
US 14 (DEMPSTER ST
FairOver: CREEK
0.1 M E I-294, Cook, IL
Built 1928 Load: 32.7 t ADT: 36,100
I-290 IKE
FairOver: S BR CHICAGO RIVER
W FRANKLIN AVE, Cook, IL
Built 1956 Load: 32.7 t ADT: 80,900
ARLINGTON HEIGHTS
FairOver: SALT CREEK
1.6 M S ILL 72 P5, Cook, IL
Built 1971 Load: 32.7 t ADT: 20,300
STEGER RD
FairOver: DEER CREEK
0.45 M E STATE P2, Cook, IL
Built 1925 Load: 32.7 t ADT: 8,950
I295,I55,RAMPS
FairOver: SEWAGE DISPOSAL RD
.16M N OF JOLIET RD, Cook, IL
Built 1958 Load: 32.7 t ADT: 40,100
IL 54 (FAP 71)
FairOver: CREEK
3 MI NE FULLERTON, De Witt, IL
Built 1931 Load: 32.7 t ADT: 2,000
I-57 (SB)
FairOver: DRAINAGE DITCH
2.25 MI S OF US 36, Douglas, IL
Built 1968 Load: 32.7 t ADT: 10,150
TR 117 C
FairOver: DRAINAGE DITCH
0.5 MI W OF BROCTON, Edgar, IL
Built 1970 Load: 32.7 t ADT: 200
FAS-1710 (CH-6)
FairOver: SECOND CREEK
4 MI S FUNKHOUSER, Effingham, IL
Built 1909 Load: 32.7 t ADT: 300
FAP-750 (ILL-185)
FairOver: LONE GROVE BR
1.2 MI E. ST PETER, Fayette, IL
Built 1932 Load: 32.7 t ADT: 1,200
TR 9 MONA
FairOver: STREAM
1240E 3500N, Ford, IL
Built 1973 Load: 32.7 t ADT: 50
TURL RD - TR 103
FairOver: MID BR COPPERAS CR
NE-1-T7NR4E, Fulton, IL
Built 1977 Load: 32.7 t ADT: 75
ILL 13
FairOver: STREAM
1 MI E SHAWNEETOWN, Gallatin, IL
Built 1955 Load: 32.7 t ADT: 2,650
ILL 13
FairOver: CYPRESS DITCH
JUNCTION, Gallatin, IL
Built 1965 Load: 32.7 t ADT: 2,700
TR-83
FairOver: BIRCH CREEK
6.6 MI NE WHITE HALL, Greene, IL
Built 1982 Load: 32.7 t ADT: 50
TR 252
FairOver: EDWARDS RIVER
6.0 MI SE CAMBRIDGE, Henry, IL
Built 1963 Load: 32.7 t ADT: 50
TR 378
FairOver: W BR WALKER CREEK
1 MI NW KEWANEE, Henry, IL
Built 1980 Load: 32.7 t ADT: 50
TR 367
FairOver: SPRING CR
.3M S-.5M E OF LODA, Iroquois, IL
Built 1965 Load: 32.7 t ADT: 75
TR 255A
FairOver: TRIB TO SPRING CREEK
3 Mi. E.OF THAWVILLE, Iroquois, IL
Built 1973 Load: 32.7 t ADT: 10
DOGWOOD RD
FairOver: DRURY CREEK
0.8MI E OF FAS 1919, Jackson, IL
Built 1980 Load: 32.7 t ADT: 350
IL 38
FairOver: MILL CREEK
3.5 M E OF IL 47, Kane, IL
Built 1965 Load: 32.7 t ADT: 11,200
FRANCIS RD
FairOver: VIRGIL DITCH NO 1
0.6 MI N. IL Rte 38, Kane, IL
Built 1978 Load: 32.7 t ADT: 75
TR 226B
FairOver: STREAM
0.5 MI E. MOMENCE, Kankakee, IL
Built 1972 Load: 32.7 t ADT: 100
TR 172
FairOver: EXLINE SLOUGH
.5 MI SW ST GEORGE, Kankakee, IL
Built 1974 Load: 32.7 t ADT: 500
FAS 311 CH 9
FairOver: BRANCH ROCK CREEK
3.9 MI W OF US 45, Kankakee, IL
Built 1977 Load: 32.7 t ADT: 2,800
I-39 NB/US 51 NB
FairOver: C & NW RR
0.2 MI N OF US 52, LaSalle, IL
Built 1977 Load: 32.7 t ADT: 9,350
TR 71
FairOver: STREAM
N 4350TH E 10TH, LaSalle, IL
Built 1964 Load: 32.7 t ADT: 50
FAS 269 (CH 12 N46
FairOver: STREAM
N46TH RD E 650, LaSalle, IL
Built 1978 Load: 32.7 t ADT: 325
TR 310
FairOver: BR COVEL CREEK
E 18TH N2190, LaSalle, IL
Built 1979 Load: 32.7 t ADT: 100
FAS268 A/CH 15
FairOver: MILL RACE
CH 15 N MILL RACE, LaSalle, IL
Built 1912 Load: 32.7 t ADT: 3,450
TR 254
FairOver: CREEK
1180 N, 3100 E, Livingston, IL
Built 1961 Load: 32.7 t ADT: 50
TR 92C
FairOver: BAKER RUN
2295 N, 1200 E, Livingston, IL
Built 1980 Load: 32.7 t ADT: 100
IL 121
FairOver: SALT CREEK
3.9M N IL54-MT PUL.*, Logan, IL
Built 1928 Load: 32.7 t ADT: 3,500
US 136
FairOver: W FORK SUGAR CREEK
1.2M W ARMINGTON RD, Logan, IL
Built 1936 Load: 32.7 t ADT: 1,900
I-55 NB
FairOver: SALT CREEK OVERFLOW
1.6M S IL 10, Logan, IL
Built 1973 Load: 32.7 t ADT: 13,750
I-55 SB
FairOver: SALT CREEK OVERFLOW
1.6M S IL 10, Logan, IL
Built 1973 Load: 32.7 t ADT: 13,750
NICHOLSON RD
FairOver: KICKAPOO CK
3 MI N LINCOLN, Logan, IL
Built 1970 Load: 32.7 t ADT: 400
ILL 138
FairOver: SUGAR CREEK
1.0MI W I-55/138 INT, Macoupin, IL
Built 1932 Load: 32.7 t ADT: 2,700
US 136
FairOver: DITCH
1.08 E IL 10, Mason, IL
Built 1966 Load: 32.7 t ADT: 1,700
Showing 10,201-10,250 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.