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
GLEN LAKE DR
FairOver: WILLOW CR
0.1 M W RIVER RD P9, Cook, IL
Built 1969 Load: 25.9 t ADT: 950
CH 24
FairOver: TRIB MUDDY CREEK
2 MI SE OF TOLEDO, Cumberland, IL
Built 1922 Load: 25.9 t ADT: 375
TR 7 B
FairOver: MUDDY CREEK
1.5 MI E OF TRILLA, Cumberland, IL
Built 1949 Load: 25.9 t ADT: 150
HOWISON RD
FairOver: BR LITTLE ROCK CREEK
1120N 1200E, DeKalb, IL
Built 1954 Load: 25.9 t ADT: 275
CH 9
FairOver: ARCOLA #4 DITCH
2.3 MI N OF FILSON, Douglas, IL
Built 1935 Load: 25.9 t ADT: 150
YACKLEY AVE
FairOver: ROTT CREEK
0.4M.S.OF OGDEN AVE., DuPage, IL
Built 1967 Load: 25.9 t ADT: 10,150
LEE AVE
FairOver: ST. JOSEPH CREEK
400 FT S BN RR, DuPage, IL
Built 1961 Load: 25.9 t ADT: 600
BROOKBANK AVE
FairOver: ST.JOSEPH CREEK
.1 MI S B N RR, DuPage, IL
Built 1961 Load: 25.9 t ADT: 50
JORIE BLVD
FairOver: GINGER CREEK
.4 MI N 31ST STREET, DuPage, IL
Built 1973 Load: 25.9 t ADT: 4,700
IL 1 US 150(FAP 33
FairOver: S FORK BROUILLETTS C
6.0 MI N OF PARIS, Edgar, IL
Built 1952 Load: 25.9 t ADT: 3,100
TR 31
FairOver: SALT FORK
2.5 MI N SCOTTLAND, Edgar, IL
Built 1900 Load: 25.9 t ADT: 50
FAS-1711 (CH-21)
FairOver: SALT CREEK
1 MI E POLICE STA, Effingham, IL
Built 1962 Load: 25.9 t ADT: 1,550
TR-268
FairOver: BRUSH CREEK
3 MI SE EFFINGHAM, Effingham, IL
Built 1909 Load: 25.9 t ADT: 250
TR-288
FairOver: FIRST SALT CREEK
NE CORNER TEUTOPOLIS, Effingham, IL
Built 1969 Load: 25.9 t ADT: 650
FAS-711 (CH 25)
FairOver: NW BR FULFER CREEK
5 MI S ALTAMONT, Effingham, IL
Built 1938 Load: 25.9 t ADT: 1,350
FAS 1707 (US-40)
FairOver: STREAM
MP 22.68, Effingham, IL
Built 1909 Load: 25.9 t ADT: 3,950
TR-347
FairOver: TRIB HURRICANE CREEK
3 MI W VANDALIA, Fayette, IL
Built 1915 Load: 25.9 t ADT: 20
TR-371
FairOver: TRIB HURRICANE CREEK
3 MI W VANDALIA, Fayette, IL
Built 1932 Load: 25.9 t ADT: 150
TR-511
FairOver: TRIB LONE GROVE BR
1 MI N ST PETER, Fayette, IL
Built 1935 Load: 25.9 t ADT: 50
TR-516
FairOver: TRIB HICKORY CREEK
3 MI SSE ST ELMO, Fayette, IL
Built 1969 Load: 25.9 t ADT: 50
TR-168
FairOver: FISH LAKE DITCH
2.7 MI S VANDALIA, Fayette, IL
Built 1979 Load: 25.9 t ADT: 25
MONROE STREET 3100
FairOver: CREEK
FARINA, Fayette, IL
Built 1909 Load: 25.9 t ADT: 275
TR 48A BRENTON
FairOver: STREAM
1300E 1980N, Ford, IL
Built 1962 Load: 25.9 t ADT: 25
FAS 1352 CH 17
FairOver: STREAM
200N,1980E, Ford, IL
Built 1961 Load: 25.9 t ADT: 900
TR 62
FairOver: DRAINAGE DITCH
1700E, 80N, Ford, IL
Built 1997 Load: 25.9 t ADT: 25
TR 265
FairOver: MIDDLE FORK CREEK
TR 265 OV MID FK CK, Franklin, IL
Built 1900 Load: 25.9 t ADT: 25
FAU 9489 WATER PL
FairOver: EWING CR
DEERING RD, Franklin, IL
Built 1954 Load: 25.9 t ADT: 1,600
TR-3
FairOver: GUN CREEK
1 MI S INA, Franklin, IL
Built 1970 Load: 25.9 t ADT: 250
CO HWY 18
FairOver: LA MOINE RIVER
3 MI E OF BURNSIDE, Hancock, IL
Built 1972 Load: 25.9 t ADT: 200
TR 36
FairOver: ROBINSON CREEK
2.0 MI NE NAUVOO, Hancock, IL
Built 1969 Load: 25.9 t ADT: 50
TR 45
FairOver: BRANCH OF ROCK CREEK
0.5 MI E OF ILL 1, Hardin, IL
Built 1978 Load: 25.9 t ADT: 50
TR 216
FairOver: OAT CREEK
2 MI SE GENESEO, Henry, IL
Built 1961 Load: 25.9 t ADT: 150
FAS 329 CH 10 SA 1
FairOver: FOUNTAIN CREEK
5.06 MI E OF ILL 49, Iroquois, IL
Built 1958 Load: 25.9 t ADT: 500
CH 9 FAS 334
FairOver: SPRING CR
1 MI E JCT CH9 US45, Iroquois, IL
Built 1952 Load: 25.9 t ADT: 500
TR 175B SEC 102
FairOver: PRAIRIE CREEK
.4MI E LAHOGUE, Iroquois, IL
Built 1955 Load: 25.9 t ADT: 75
FAS 2830 CH 13
FairOver: TRIB CASEY FORK
0.5 MI E NASON, Jefferson, IL
Built 1967 Load: 25.9 t ADT: 200
TR-79
FairOver: RAYSE CREEK
2 MI W CRAVAT, Jefferson, IL
Built 1961 Load: 25.9 t ADT: 25
FAS 830 (CH 8)
FairOver: BEAR CREEK
1 MI N BLUFORD, Jefferson, IL
Built 1974 Load: 25.9 t ADT: 1,250
TOWNSHIP ROAD NO.
FairOver: L. MENOMINEE RIV
1 MI NE MENOMINEE, Jo Daviess, IL
Built 1964 Load: 25.9 t ADT: 100
BRUNDIGE ROAD
FairOver: MILL CREEK
1.0 MI E LAFOX, Kane, IL
Built 1960 Load: 25.9 t ADT: 225
MEREDITH ROAD
FairOver: UNNAMED DRAINAGE DITCH
0.9 MI S OF IL 38, Kane, IL
Built 1983 Load: 25.9 t ADT: 1,950
MARSHALL BLVD
FairOver: INDIAN CREEK
.1 MI W FARNSWORTH, Kane, IL
Built 1950 Load: 25.9 t ADT: 650
TR 220
FairOver: FOREMAN CREEK
W.CTR-4-T12NR3E, Knox, IL
Built 1971 Load: 25.9 t ADT: 10
TR 114
FairOver: POPE CREEK
SW-4-T13NR2E, Knox, IL
Built 1900 Load: 25.9 t ADT: 25
LOSEY ST. GALESBUR
FairOver: CEDAR CREEK
1100 BLK E. LOSEY, Knox, IL
Built 1925 Load: 25.9 t ADT: 5,150
CO RD 32
FairOver: FOX RIVER
N 41ST,E 2475, LaSalle, IL
Built 1972 Load: 25.9 t ADT: 1,100
TR 87
FairOver: L VERMILLIAN CR
N 43RD E 810, LaSalle, IL
Built 1966 Load: 25.9 t ADT: 100
TR-145
FairOver: LITTLE INDIAN CREEK
N40E2060, LaSalle, IL
Built 1969 Load: 25.9 t ADT: 75
TR-157
FairOver: DRAINAGE DITCH
N 39TH E 190, LaSalle, IL
Built 1972 Load: 25.9 t ADT: 100
FAS-694
FairOver: BUGABOO CREEK
3 MI N SUMNER, Lawrence, IL
Built 1954 Load: 25.9 t ADT: 900
Showing 5,951-6,000 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 |