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
FAS 895
FairOver: BLACKLAND DITCH
2.28 MI N ILL 13, Saline, IL
Built 1950 Load: 22.0 t ADT: 350
TR 103C 11.5E
FairOver: NO FORK CLEAR CREEK
1.0 E OF DAWSON, Sangamon, IL
Built 1900 Load: 22.0 t ADT: 50
E. RIVER ROAD
FairOver: BRANCH PECATONICA R
3.0 MI E FREEPORT, Stephenson, IL
Built 1937 Load: 22.0 t ADT: 375
LAKE RD
FairOver: WADDAMS CR
2.0 MI N LENA, Stephenson, IL
Built 1959 Load: 22.0 t ADT: 475
BROADWAY RD-TR 71A
FairOver: MUD CREEK
NW-1-T25NR3W, Tazewell, IL
Built 1967 Load: 22.0 t ADT: 1,150
RED SHALE HILL-TR1
FairOver: DILLON CREEK
NE-34-T24NR4W, Tazewell, IL
Built 1962 Load: 22.0 t ADT: 250
STRAUB RD - TR 167
FairOver: DILLON CREEK
NE COR-8-T23NR4W, Tazewell, IL
Built 1962 Load: 22.0 t ADT: 50
TR 65
FairOver: STREAM
NW-35-T25NR3W, Tazewell, IL
Built 1957 Load: 22.0 t ADT: 50
TR 113
FairOver: MOUTRAY SLOUGH
3 MI S WYNOOSE, Wayne, IL
Built 2003 Load: 22.0 t ADT: 10
CAPP ROAD
FairOver: JORDAN CREEK
5 MI N. STERLING, Whiteside, IL
Built 1966 Load: 22.0 t ADT: 50
I- 55 SB
FairOver: GRANT CREEK
5.6 M S OF US 6, Will, IL
Built 1956 Load: 22.0 t ADT: 24,700
CH 12
FairOver: MASTERS CREEK
2 MI. N.W. OF DOVER, Bureau, IL
Built 1952 Load: 22.4 t ADT: 75
TOWNSHIP ROAD 58A
FairOver: UNION SPECIAL DITCH
3.5 MI. E. YORKTOWN, Bureau, IL
Built 1940 Load: 22.4 t ADT: 50
TR 193
FairOver: EAST BUREAU CR.
0.5 MI. E. OF MALDEN, Bureau, IL
Built 1959 Load: 22.4 t ADT: 100
FAS 579
FairOver: MANNEL BRANCH
NWCL ARENZVILLE, Cass, IL
Built 1964 Load: 22.4 t ADT: 1,900
CH 5-FAS 639
FairOver: S. FORK SANGAMON R.
2.25 MI N BULPITT, Christian, IL
Built 1953 Load: 22.4 t ADT: 600
CH-9
FairOver: CREEK
4 MI E XENIA, Clay, IL
Built 1960 Load: 22.4 t ADT: 150
79TH ST
FairOver: FLAG CREEK
0.02 M E WOLF P10, Cook, IL
Built 1946 Load: 22.4 t ADT: 6,300
MS-3000 (LINCOLN S
FairOver: WELLER'S DRN DTCH
0.16 M E BUSSE RDP5, Cook, IL
Built 1947 Load: 22.4 t ADT: 2,250
VAN BUREN STREET
FairOver: UNION STATION TRACKS
400S 400W TO 500W, Cook, IL
Built 1920 Load: 22.4 t ADT: 6,200
TR-40
FairOver: MUDDY CREEK
4 MI N OBLONG, Crawford, IL
Built 1951 Load: 22.4 t ADT: 200
US 150(FAP 332)
FairOver: N FORK BROUILLETTS C
N EDGE OF CHRISMAN, Edgar, IL
Built 1954 Load: 22.4 t ADT: 3,500
TR 208
FairOver: SNAKE CREEK
1.2 MI NE OF AIRPORT, Edgar, IL
Built 1938 Load: 22.4 t ADT: 25
TR-40
FairOver: VILLAGE CREEK
3.5 MI NW ALBION, Edwards, IL
Built 1980 Load: 22.4 t ADT: 50
TR 64A WALL
FairOver: STREAM
610N,1700E, Ford, IL
Built 1966 Load: 22.4 t ADT: 75
US 24
FairOver: BUCKHEART CREEK
1 MI NE JCT IL 78&24, Fulton, IL
Built 1990 Load: 22.4 t ADT: 2,100
QUARTER RD - TR 44
FairOver: SUGAR CREEK
E1/2-18-T4NR1E, Fulton, IL
Built 1963 Load: 22.4 t ADT: 75
TR 256
FairOver: BEAR CREEK
6.5 M NW GREENFIELD, Greene, IL
Built 1974 Load: 22.4 t ADT: 225
TR 356
FairOver: BRONSON CREEK
1.5 MI NW PLYMOUTH, Hancock, IL
Built 1959 Load: 22.4 t ADT: 100
HANSON RD
FairOver: AUX SABLE CK
.5 MI N OF HOLT RD, Kendall, IL
Built 1972 Load: 22.4 t ADT: 100
CH 29 /E.15TH RD
FairOver: VERMILION RIVER
E 15TH,N 1610, LaSalle, IL
Built 1968 Load: 22.4 t ADT: 625
INDIAN HEAD ROAD
FairOver: BR OF GREEN RIVER
0.6 M N TAMPICO ROAD, Lee, IL
Built 1968 Load: 22.4 t ADT: 250
TR 218
FairOver: LOCAL DRAINAGE
3 MI E LAKE FORK, Logan, IL
Built 1962 Load: 22.4 t ADT: 100
TR 83
FairOver: HARDIN DITCH
3 MI NNW EASTON, Mason, IL
Built 1976 Load: 22.4 t ADT: 50
TR 271
FairOver: CAMP CREEK
CTR-22-T5NR1W, McDonough, IL
Built 1957 Load: 22.4 t ADT: 25
COTTAGE AVE/FAU638
FairOver: SUGAR CREEK
1.5 MI NW 51 & 9, McLean, IL
Built 1968 Load: 22.4 t ADT: 3,250
FOWLER RD
FairOver: BR. KYTE CREEK
1.5 N.W. FLAGG CENTE, Ogle, IL
Built 1971 Load: 22.4 t ADT: 175
RAZORVILLE ROAD
FairOver: UNNAMED CR
3.0 MI SW OF BYRON, Ogle, IL
Built 1967 Load: 22.4 t ADT: 175
ANDERSON RD
FairOver: BR KICKAPOO CREEK
SE-14-AKRON, Peoria, IL
Built 1964 Load: 22.4 t ADT: 75
HICKS HOLLOW RD
FairOver: KICKAPOO CREEK
SW-35-T11NR7E, Peoria, IL
Built 1969 Load: 22.4 t ADT: 100
TR 98
FairOver: HADLEY CR TRIBUTARY
0.5 MI S BARRY, Pike, IL
Built 1900 Load: 22.4 t ADT: 50
TR 116
FairOver: HORTON CR TRIBUTARY
2.75 MI NW ROCKPORT, Pike, IL
Built 1900 Load: 22.4 t ADT: 25
TR 258
FairOver: BAY CREEK TRIB
1 M N TR 455, Pike, IL
Built 1955 Load: 22.4 t ADT: 50
TR 224
FairOver: TRIB TO PLUM CREEK
1 MI S TILDEN, Randolph, IL
Built 1965 Load: 22.4 t ADT: 225
TR 97 A
FairOver: SAND CREEK
4.1 MI NW WINDSOR, Shelby, IL
Built 1969 Load: 22.4 t ADT: 75
IL 3 NB Ramp "F" P
FairOver: Abandoned Southern RR
ABUT F-1 TO PIER P-1, St. Clair, IL
Built 1971 Load: 22.4 t ADT: 23,900
WEST LILY CREEK RO
FairOver: BR OF PRESTON CREEK
0.7 MI S OF US RT 20, Stephenson, IL
Built 1969 Load: 22.4 t ADT: 750
TR 60
FairOver: WHISKY CREEK
2 MI E RANKIN, Vermilion, IL
Built 1970 Load: 22.4 t ADT: 50
TR 58
FairOver: CEDAR CR
N.CTR-26-T12NR3W, Warren, IL
Built 1974 Load: 22.4 t ADT: 50
HOLLY ROAD
FairOver: BR OF CATTAIL CR
2 MI SE FULTON, Whiteside, IL
Built 1950 Load: 22.4 t ADT: 850
Showing 4,851-4,900 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 |