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
CH 8
FairOver: WALNUT CREEK
SOUTH EDGE WALNUT, Bureau, IL
Built 1931 Load: 25.6 t ADT: 625
NORTH MEYERS ROAD
FairOver: BR E FORK PLUM RIVER
3.5 M N MT. CARROLL, Carroll, IL
Built 1899 Load: 25.6 t ADT: 50
CH 20(FAS 502)
FairOver: UPPER SALT FK DRA DI
3.7 MI S FLATVILLE, Champaign, IL
Built 1951 Load: 25.6 t ADT: 1,150
TR 2
FairOver: SANG/CHRIS LAKE
2MI SW OF SICILY, Christian, IL
Built 1964 Load: 25.6 t ADT: 400
TR 189
FairOver: CLEAR CREEK
3.5 MI SSW KINCAID, Christian, IL
Built 1965 Load: 25.6 t ADT: 75
FAS 661(CH 20)
FairOver: KASKASKIA RIVER
N OF COOKS MILLS, Coles, IL
Built 1937 Load: 25.6 t ADT: 650
DEVON AVE
FairOver: DES PLAINES RIVER
0.4 M E I-294, Cook, IL
Built 1928 Load: 25.6 t ADT: 9,250
IL 50 SB CICERO A
FairOver: RR - BRC
0.2 M S 67TH ST, Cook, IL
Built 1982 Load: 25.6 t ADT: 57,400
I-294 NB
FairOver: CC RR
0.15M N ILL 56, Cook, IL
Built 1958 Load: 25.6 t ADT: 78,200
TR 6
FairOver: LITTLE EMBARRASS R
.7 MI W OF ISABEL, Edgar, IL
Built 1973 Load: 25.6 t ADT: 50
TR 217
FairOver: STREAM
.75 MI ESE OF HUNTER, Edgar, IL
Built 1940 Load: 25.6 t ADT: 50
FAS-800
FairOver: BONPAS CREEK
2.7 MI E WEST SALEM, Edwards, IL
Built 1949 Load: 25.6 t ADT: 1,000
FAS-711 (CH-25)
FairOver: MOCCASIN CREEK
4 MI N ALTAMONT, Effingham, IL
Built 1963 Load: 25.6 t ADT: 850
TR 60C PATTON
FairOver: THE BIG FOUR
310N,1600E, Ford, IL
Built 1967 Load: 25.6 t ADT: 100
TR 74 PATTON
FairOver: THE BIG FOUR
2000E,80N, Ford, IL
Built 1961 Load: 25.6 t ADT: 200
TR 64A LYMAN
FairOver: STREAM
1620N 1700E, Ford, IL
Built 1973 Load: 25.6 t ADT: 25
ILL 149
FairOver: STEVENS CREEK
2.4 MI W ILL 34, Franklin, IL
Built 1928 Load: 25.6 t ADT: 2,050
ENION RD - TR 503A
FairOver: OTTER CREEK
SE-32-T4NR3E, Fulton, IL
Built 1973 Load: 25.6 t ADT: 50
FAS 1425
FairOver: SLATER CREEK
2.3 MI SOUTH OF BASC, Hancock, IL
Built 1973 Load: 25.6 t ADT: 100
FAS 337
FairOver: TRIB SPRING CREEK
1MI E THAWVILLE, Iroquois, IL
Built 1969 Load: 25.6 t ADT: 150
TR-36
FairOver: BIG MUDDY CREEK
2 MI SSW LATONA, Jasper, IL
Built 1909 Load: 25.6 t ADT: 125
FAS-2871
FairOver: CREEK
5 MI S WALTONVILLE, Jefferson, IL
Built 1968 Load: 25.6 t ADT: 125
TR-536
FairOver: CREEK
1.7 MI SE BELLE RIVE, Jefferson, IL
Built 1962 Load: 25.6 t ADT: 50
FAS 746
FairOver: TRIB OF MACOUPIN CRE
3.7 MI W US 267, Jersey, IL
Built 1953 Load: 25.6 t ADT: 350
LENSCHOW ROAD
FairOver: BURLINGTON CREEK
0.3 M E of French Rd, Kane, IL
Built 1964 Load: 25.6 t ADT: 325
NATIONAL STREET
FairOver: FOX RIVER
0.7 MI. N US-20, Kane, IL
Built 1949 Load: 25.6 t ADT: 6,900
CO RD 42
FairOver: BUCK CREEK
E 15TH,N 3570, LaSalle, IL
Built 1932 Load: 25.6 t ADT: 375
TR-91
FairOver: PAUL CREEK
4 MI S CHAUNCEY, Lawrence, IL
Built 1969 Load: 25.6 t ADT: 50
TR-283
FairOver: RACCOON CREEK
9.5 MI S LAWRENCEVIL, Lawrence, IL
Built 1959 Load: 25.6 t ADT: 50
ATKINSON RD
FairOver: BASS DITCH
1.6 M N BUREAU CO L, Lee, IL
Built 1954 Load: 25.6 t ADT: 50
TR 41C
FairOver: DRAINAGE DITCH
29150E, 2800 N, Livingston, IL
Built 1965 Load: 25.6 t ADT: 75
TR 224A
FairOver: DRAINAGE DITCH
605 N, 2600 E, Livingston, IL
Built 1960 Load: 25.6 t ADT: 50
BURTON VIEW RD
FairOver: SUGAR CK
2.3 MI N BURTONVIEW, Logan, IL
Built 1964 Load: 25.6 t ADT: 300
TR 188
FairOver: LAKE FORK CK
2 MI S LAKE FORK, Logan, IL
Built 1969 Load: 25.6 t ADT: 50
ILL 16
FairOver: COOP BRANCH E
3.8 M E SHIPMAN, Macoupin, IL
Built 1934 Load: 25.6 t ADT: 1,800
NILWOOD WAGGONER R
FairOver: HORSE CREEK
4.5 MI. E. NILWOOD, Macoupin, IL
Built 1973 Load: 25.6 t ADT: 225
FAS 1437 - CH 2
FairOver: E FORK LAMOINE RIVER
NW-13-T6NR2W, McDonough, IL
Built 1972 Load: 25.6 t ADT: 150
TR 369
FairOver: SANGAMON RIVER
2.0 MI SW ARROWSMITH, McLean, IL
Built 1968 Load: 25.6 t ADT: 25
TR 171
FairOver: BR MACKINAW RIVER
1.5 MI W COLFAX, McLean, IL
Built 1971 Load: 25.6 t ADT: 50
TR 239 A
FairOver: BR MACKINAW R
3.0 MI S COLFAX, McLean, IL
Built 1973 Load: 25.6 t ADT: 50
TR 484
FairOver: BR OF ROOKS CR
1.0 MI SE CHENOA, McLean, IL
Built 1971 Load: 25.6 t ADT: 75
FREEPORT RD
FairOver: BUFFALO CREEK
2.5 MI SW POLO, Ogle, IL
Built 1956 Load: 25.6 t ADT: 1,750
TR 169
FairOver: STREAM
2.0 MI SE MILMINE, Piatt, IL
Built 1961 Load: 25.6 t ADT: 50
TR 173
FairOver: STREAM
3.5 MI SSW CERRO GOR, Piatt, IL
Built 1974 Load: 25.6 t ADT: 35
TR 96
FairOver: BROWN CREEK
2.25 MI SW EL DARA, Pike, IL
Built 1960 Load: 25.6 t ADT: 25
ILL 4 & 150
FairOver: COX CREEK
NEAR ECL STEELEVILLE, Randolph, IL
Built 1977 Load: 25.6 t ADT: 4,900
TR 74
FairOver: WOLF RUN CREEK
1 MI E BLUFFS, Scott, IL
Built 1965 Load: 25.6 t ADT: 75
WEST RADERS ROAD
FairOver: BR OF YELLOW CREEK
1.4 MI W OF ILL 73, Stephenson, IL
Built 1965 Load: 25.6 t ADT: 75
WEST HERSHEY ROAD
FairOver: LOST CREEK
5 MI SE OF PEARL CIT, Stephenson, IL
Built 1974 Load: 25.6 t ADT: 25
SHAY RD - TR 70A
FairOver: MAIN DITCH
SE-21-T22NR5W, Tazewell, IL
Built 1961 Load: 25.6 t ADT: 25
Showing 5,851-5,900 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 |