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
OLD IL RTE 3-GALE
FairOver: SEXTON CREEK
GALE, Alexander, IL
Built 1933 Load: 24.0 t ADT: 175
MARENGO RD
FairOver: PISCASAW CREEK
1.5 MI NE BELVIDERE, Boone, IL
Built 1965 Load: 24.0 t ADT: 2,200
BROOKVILLE ROAD
FairOver: ROCK CREEK
3 MI NE CHADWICK, Carroll, IL
Built 1967 Load: 24.0 t ADT: 25
TR-111
FairOver: BIG MUDDY
2 MI SW INGERHAM, Clay, IL
Built 1975 Load: 24.0 t ADT: 50
TR 41
FairOver: KASKASKIA RIVER
2.0 MI NE COOKS MILL, Coles, IL
Built 2004 Load: 24.0 t ADT: 300
FRANCISCO AVE
FairOver: CAL SAG CHANNEL
0.2 N BROADWAY P26, Cook, IL
Built 1969 Load: 24.0 t ADT: 10,350
IL 23
FairOver: SOMONAUK CREEK
1.4 MI N JCT US 30, DeKalb, IL
Built 1975 Load: 24.0 t ADT: 3,150
CH-11 (FAS 666)
FairOver: STREAM
1.86 MI W OF ARCOLA, Douglas, IL
Built 1971 Load: 24.0 t ADT: 1,300
FAS 2796 (US-40)
FairOver: SECOND CREEK
2MI E ALTAMONT, Effingham, IL
Built 1919 Load: 24.0 t ADT: 4,450
CH 19 PIPER THAWVI
FairOver: PELLA DRAINAGE DITCH
2760N,1700E, Ford, IL
Built 1959 Load: 24.0 t ADT: 150
TR 10B DRUMMER
FairOver: STREAM
160N,200E, Ford, IL
Built 1971 Load: 24.0 t ADT: 75
TR 42 MONA
FairOver: STREAM
3530N 1200E, Ford, IL
Built 1969 Load: 24.0 t ADT: 50
CAMPUS ROAD
FairOver: TRIB TO MAZON RIVER
0.2 MI S TR 159, Grundy, IL
Built 1955 Load: 24.0 t ADT: 850
CAMPUS ROAD
FairOver: E FK MAZON RIV
0.02 MI S TR 165, Grundy, IL
Built 1955 Load: 24.0 t ADT: 850
TR 222
FairOver: PRAIRIE CREEK
3.5 MI NE CARTHAGE, Hancock, IL
Built 1966 Load: 24.0 t ADT: 75
TR 267
FairOver: BIG MEADOW SLOUGH
1 MI W OF BENTLEY, Hancock, IL
Built 1975 Load: 24.0 t ADT: 75
TR 99B
FairOver: MIDDLEPORT DITCH #1
1 MI E. ILL 1, Iroquois, IL
Built 1968 Load: 24.0 t ADT: 75
TR 100
FairOver: TRIB TO PIGEON CR
4.2MI S CH44, Iroquois, IL
Built 1975 Load: 24.0 t ADT: 50
CH-10
FairOver: EMBARRAS DEAD RIVER
.25 MI E RAFETOWN, Jasper, IL
Built 1978 Load: 24.0 t ADT: 100
FAU-8715 (OLD-15)
FairOver: STREAM
.25 MI NE ILL-15, Jefferson, IL
Built 1925 Load: 24.0 t ADT: 5,700
ILL 100
FairOver: COON CREEK
.01 S OF ROSEDALE RD, Jersey, IL
Built 1938 Load: 24.0 t ADT: 775
ILL 78
FairOver: YELLOW CREEK
1.6 MI. N. OF US 20, Jo Daviess, IL
Built 1988 Load: 24.0 t ADT: 1,400
CH 19 MORGAN RD
FairOver: BRANCH OF GREEN RIVE
2 MI N OF MAYTOWN RD, Lee, IL
Built 1960 Load: 24.0 t ADT: 200
CO HWY 26 FAS-350
FairOver: TRIB TO ROOKS CREEK
1.5 MI N OF CHENOA, Livingston, IL
Built 1956 Load: 24.0 t ADT: 225
CH-8 (FAS-1362)
FairOver: Rooks Creek
0.5 MI E OF OCOYA, Livingston, IL
Built 1966 Load: 24.0 t ADT: 800
CO HWY 16 FAS 355
FairOver: MOLE CREEK
5.5 MI N FLANAGAN, Livingston, IL
Built 1937 Load: 24.0 t ADT: 850
TR 24A
FairOver: SCATTERING POINT
1340 N, 500 E, Livingston, IL
Built 1927 Load: 24.0 t ADT: 25
TR 208
FairOver: WATERWAY
190 N, 2300 E, Livingston, IL
Built 1972 Load: 24.0 t ADT: 175
TR 23
FairOver: LOCAL DRAINAGE
1 MI N 4.5MI W HARTS, Logan, IL
Built 1975 Load: 24.0 t ADT: 50
OLD US 51 (SBI 2C)
FairOver: WEBSTER CREEK
1.5 MI S WAMAC, Marion, IL
Built 1920 Load: 24.0 t ADT: 150
OLIVE STREET 2455A
FairOver: TOWN CREEK
SALEM, Marion, IL
Built 1964 Load: 24.0 t ADT: 275
TR 67
FairOver: TRIB TO Q DITCH
0.67 MI W OF US 45, Massac, IL
Built 1900 Load: 24.0 t ADT: 25
TR 546
FairOver: SANGAMON RIVER
2.0MI ESE ARROWSMITH, McLean, IL
Built 1969 Load: 24.0 t ADT: 75
ADELAIDE ST-FAU 63
FairOver: SUGAR CREEK
0.7 MI NW 51 & 150, McLean, IL
Built 1944 Load: 24.0 t ADT: 2,400
VIRGINIA AVE-FAU63
FairOver: PED. & BIKE PATH
400 FT W OF LINDEN, McLean, IL
Built 1906 Load: 24.0 t ADT: 2,750
ILL 10(FAP 721)
FairOver: GOOSE CREEK BRANCH
W EDGE OF DELAND, Piatt, IL
Built 1977 Load: 24.0 t ADT: 1,600
TR 129
FairOver: LAKE FORK DRAIN DIT
4 MI SE MONTICELLO, Piatt, IL
Built 1944 Load: 24.0 t ADT: 25
CH-47 (FAS-2203)
FairOver: Creek
3 MI EAST PORT BYRON, Rock Island, IL
Built 1943 Load: 24.0 t ADT: 500
TR 84 (10.5W)
FairOver: RICHLAND CREEK
3.0 E P PLAINS, Sangamon, IL
Built 1960 Load: 24.0 t ADT: 125
TR 212
FairOver: CANTRALL CREEK
4.0 SW OF CANTRALL, Sangamon, IL
Built 1969 Load: 24.0 t ADT: 175
TR 41
FairOver: STREAM
3.8 MI NW YANTISVILL, Shelby, IL
Built 1909 Load: 24.0 t ADT: 50
ILL 73
FairOver: TRIB PECATONICA R
1.5 MI S WINSLOW, Stephenson, IL
Built 1931 Load: 24.0 t ADT: 1,250
BECKER SCHOOL RD.
FairOver: BR OF YELLOW CREEK
3.5 MI SW FREEPORT, Stephenson, IL
Built 1965 Load: 24.0 t ADT: 850
HOFFMAN RD - TR 11
FairOver: STREAM
NW-20-T24NR2W, Tazewell, IL
Built 1921 Load: 24.0 t ADT: 75
MT. RD. - TR 171
FairOver: PRAIRIE CREEK
SE-4-T23NR3W, Tazewell, IL
Built 1970 Load: 24.0 t ADT: 50
TR 4 (MCLEAN CO.)
FairOver: WEST FORK SUGAR CR
ALLIN WESTLINE SEC 7, Tazewell, IL
Built 1971 Load: 24.0 t ADT: 25
PARKWAY DR-FAU 671
FairOver: LICK CREEK
0.50 MI S. OF ILL 98, Tazewell, IL
Built 1973 Load: 24.0 t ADT: 6,850
CH 14
FairOver: BLUEGRASS CREEK
9.8 MI W ROSSVILLE, Vermilion, IL
Built 1938 Load: 24.0 t ADT: 350
INDEPENDENCE AVE
FairOver: S BR KENT CREEK
0.1 MI S OF PRESTON, Winnebago, IL
Built 1978 Load: 24.0 t ADT: 525
TR 41 BRENTON
FairOver: STREAM
1680E,2100N, Ford, IL
Built 1902 Load: 24.1 t ADT: 25
Showing 5,101-5,150 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 |