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-830 (CH-6)
FairOver: CREEK
2 MI S BELLE RIVE, Jefferson, IL
Built 1987 Load: 23.0 t ADT: 375
TOWNSHIP ROAD NO 9
FairOver: SMALLPOX CREEK
6 MI. E. OF GALENA, Jo Daviess, IL
Built 1960 Load: 23.0 t ADT: 50
CHICAGO RD
FairOver: MIDDLE AUXSABLE CK
.5 MI E OF GROVE RD, Kendall, IL
Built 1972 Load: 23.0 t ADT: 75
TR 7
FairOver: LITTLE INDIAN CREEK
N 48TH E 1801, LaSalle, IL
Built 1965 Load: 23.0 t ADT: 200
TR 75
FairOver: SHORT POINT CREEK
695E, 2400N, Livingston, IL
Built 1969 Load: 23.0 t ADT: 50
TR 235
FairOver: LAKE FORK CK TRIB
1 MI S LAKE FORK, Logan, IL
Built 1956 Load: 23.0 t ADT: 50
TR 30A(STRAWN RD)
FairOver: DRAINAGE DITCH
3.6 MI NW WARRENSBUR, Macon, IL
Built 1972 Load: 23.0 t ADT: 20
TR 73(W STRINGTOWN
FairOver: STREAM
3.25 MI NW NIANTIC, Macon, IL
Built 1963 Load: 23.0 t ADT: 25
TR 203
FairOver: CREEK
1 MI N CARLINVILLE, Macoupin, IL
Built 1899 Load: 23.0 t ADT: 275
NICHOLS RD
FairOver: NIPPERSINK CREEK
.2 MI NW HILLSIDE RD, McHenry, IL
Built 1953 Load: 23.0 t ADT: 600
TR 40
FairOver: BRANCH SUGAR CREEK
2.0 MI SW DANVERS, McLean, IL
Built 1967 Load: 23.0 t ADT: 75
TR 326
FairOver: MONEY CREEK
4.5 MI SW CLARKSVILL, McLean, IL
Built 1967 Load: 23.0 t ADT: 25
BUFFALO RD
FairOver: BR BUFFALO CREEK
3 MI SW POLO, Ogle, IL
Built 1973 Load: 23.0 t ADT: 25
OAK GROVE RD
FairOver: MIDDLE CREEK
4 MI NW BYRON, Ogle, IL
Built 1967 Load: 23.0 t ADT: 25
TR 403 13.5S
FairOver: S FORK LICK CREEK
6.0 SW OF LOAMI, Sangamon, IL
Built 1962 Load: 23.0 t ADT: 75
ILL 106
FairOver: SUGAR CREEK
W EDGE WINCHESTER, Scott, IL
Built 1953 Load: 23.0 t ADT: 2,200
Ramp to IL 3 SB "E
FairOver: Abandoned Southern RR
ABUT E-9 TO P-O17, St. Clair, IL
Built 1971 Load: 23.0 t ADT: 23,900
TOWN HALL RD/ TR 9
FairOver: WAELTI CR
3.5 MI W 59 ST, St. Clair, IL
Built 1971 Load: 23.0 t ADT: 375
E. ST. JAMES RD.
FairOver: BRUSH CREEK
3.5 MI. E. ILL RT.26, Stephenson, IL
Built 1960 Load: 23.0 t ADT: 75
TR 61B
FairOver: STREAM
E.CTR-28-T25NR3W, Tazewell, IL
Built 1963 Load: 23.0 t ADT: 1,350
TR 13
FairOver: FOUNTAIN CREEK BR
1.5 MI S EAST LYNN, Vermilion, IL
Built 1973 Load: 23.0 t ADT: 50
FAS-795
FairOver: DEER CREEK
CISNE, Wayne, IL
Built 1959 Load: 23.0 t ADT: 1,400
I-88 EB
FairOver: DEER CREEK
4 MI NE LYNDON, Whiteside, IL
Built 1974 Load: 23.0 t ADT: 6,300
I-88 WB
FairOver: DEER CREEK
4 MI NE LYNDON, Whiteside, IL
Built 1974 Load: 23.0 t ADT: 6,300
CAPP ROAD
FairOver: BR OF ELKHORN CREEK
5 MI N STERLING, Whiteside, IL
Built 1958 Load: 23.0 t ADT: 50
FAS 1348 CH 14
FairOver: DITCH MOLE CREEK
4 MI E MINONK, Woodford, IL
Built 1961 Load: 23.0 t ADT: 375
TR 271
FairOver: Rock Creek
75 N 1850 E, Woodford, IL
Built 1965 Load: 23.0 t ADT: 100
N MAPLE GROVE RD
FairOver: BR. STRADDLE CREEK
3.5 MI NE LANARK, Carroll, IL
Built 1971 Load: 23.3 t ADT: 50
US 67 / ILL 100
FairOver: INDIAN CREEK
6M S IL 125, Cass, IL
Built 1991 Load: 23.3 t ADT: 1,800
TR 290
FairOver: LAKE FORK
4.4 MI NNE PANA, Christian, IL
Built 1957 Load: 23.3 t ADT: 100
VOLLMER RD
FairOver: BUTTERFIELD CREEK
0.7M E. KEDZIE AV, Cook, IL
Built 1946 Load: 23.3 t ADT: 19,200
IL 64 FAP 17
FairOver: DRAINAGE DITCH
2.5 MI W SYCAMORE, DeKalb, IL
Built 1937 Load: 23.3 t ADT: 4,500
LELAND RD
FairOver: LITTLE INDIAN CREEK
745N 730E, DeKalb, IL
Built 1969 Load: 23.3 t ADT: 425
TR 220
FairOver: CLEAR CREEK
1.5 MI S OF NEVINS, Edgar, IL
Built 1970 Load: 23.3 t ADT: 225
TR 770
FairOver: COAL CREEK
SE-23-T8NR2E, Fulton, IL
Built 1954 Load: 23.3 t ADT: 75
SHELBY RD - TR 371
FairOver: LIT SISTER CR
NE-16-T5NR4E, Fulton, IL
Built 1966 Load: 23.3 t ADT: 75
TR-107
FairOver: BIG CREEK
6.8 MI S WAYNE CO LN, Hamilton, IL
Built 1941 Load: 23.3 t ADT: 10
TR 25
FairOver: HARRIS CREEK
NW Q SEC 15 T11S R9E, Hardin, IL
Built 1964 Load: 23.3 t ADT: 25
I-74 & 280
FairOver: DRAINAGE DITCH
2 MI E RI CO LINE, Henry, IL
Built 1962 Load: 23.3 t ADT: 15,000
FAS-704
FairOver: EMBARRAS RIVER
3 MI W ROSE HILL, Jasper, IL
Built 1964 Load: 23.3 t ADT: 250
FAS-2706 (CH-6)
FairOver: N FK EMBARRAS RIVER
2.5 MI SE YALE, Jasper, IL
Built 1964 Load: 23.3 t ADT: 100
TR-365
FairOver: BIG MUDDY RIVER
3.5 MI NE WALTONVILL, Jefferson, IL
Built 1977 Load: 23.3 t ADT: 100
CH 21/FAU 6219
FairOver: SPRING CR
1 MI E AROMA PARK, Kankakee, IL
Built 1957 Load: 23.3 t ADT: 700
TR 85
FairOver: CRANE CREEK
2.5 MI SW ESSEX, Kankakee, IL
Built 1972 Load: 23.3 t ADT: 150
TR 52A(BOODY RD)
FairOver: DRY BRANCH
3.5 MI SW MACON, Macon, IL
Built 1959 Load: 23.3 t ADT: 50
N RODGERS AV/TR 91
FairOver: BLACK CREEK
0.50 N BELTLINE, Madison, IL
Built 1969 Load: 23.3 t ADT: 1,050
US 50
FairOver: Brubaker Creek
2 MI E SALEM, Marion, IL
Built 1952 Load: 23.3 t ADT: 3,750
TR 150
FairOver: MASON TAZEWELL DITCH
0.5 MI SW FOREST CTY, Mason, IL
Built 1910 Load: 23.3 t ADT: 50
TR 194
FairOver: SLEEPY HOLLOW DITCH
4.5 MI SW MASON CITY, Mason, IL
Built 1972 Load: 23.3 t ADT: 25
TR 183
FairOver: LITTLE CROOKED CREEK
1.0 MI NW COOKSVILLE, McLean, IL
Built 1963 Load: 23.3 t ADT: 500
Showing 5,001-5,050 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 |