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
TR-63
FairOver: DRAINAGE DITCH
2.2 MI N CROSSVILLE, White, IL
Built 1961 Load: 24.3 t ADT: 25
TR-77
FairOver: DRAINAGE DITCH
1.5 MI SE CENTERVILL, White, IL
Built 1962 Load: 24.3 t ADT: 10
TR-287
FairOver: BEAR CREEK
1.5 MI N NORRIS CITY, White, IL
Built 1954 Load: 24.3 t ADT: 75
TR-406
FairOver: JERRY SLOUGH
2 MI S PHILLPSTOWN, White, IL
Built 1964 Load: 24.3 t ADT: 50
TR-112
FairOver: DRAINAGE DITCH
2 MI E ENFIELD, White, IL
Built 1909 Load: 24.3 t ADT: 25
TR-219
FairOver: SEVEN MILE CREEK
4 MI SE ENFIELD, White, IL
Built 1909 Load: 24.3 t ADT: 10
STERN RD
FairOver: TRIB TO DRAINAGE DIT
5 MI NW OF ERIE, Whiteside, IL
Built 1970 Load: 24.3 t ADT: 25
PROPHETSTOWN ROAD
FairOver: SPRING SLOUGH
3 MI SW OF ROCK FALL, Whiteside, IL
Built 1947 Load: 24.3 t ADT: 2,100
HOOVER RD.
FairOver: JORDON CREEK
5 MI N STERLING, Whiteside, IL
Built 1969 Load: 24.3 t ADT: 225
SAWYER RD
FairOver: FRENCH CREEK
SOUTH EDGE MORRISON, Whiteside, IL
Built 1952 Load: 24.3 t ADT: 225
US 30
FairOver: MISSISSIPPI RIVER
1 MI W OF ILL 84, Whiteside, IL
Built 1956 Load: 24.3 t ADT: 9,650
DELLOS RD
FairOver: AUX SABLE CR
6 MI NE MORRIS, Will, IL
Built 1873 Load: 24.3 t ADT: 225
I- 55 NB
FairOver: ABANDONED RR
2.3 M N OF US 30, Will, IL
Built 1956 Load: 24.3 t ADT: 40,900
BLACK RD
FairOver: ROCK RUN CREEK
1/2 MI E I-55, Will, IL
Built 1960 Load: 24.3 t ADT: 24,100
BERNHARD ROAD
FairOver: JACKSON BRANCH
2.4 MI E ILL 53, Will, IL
Built 1900 Load: 24.3 t ADT: 20
SCHEER ROAD
FairOver: FORKED CREEK
2.1 N US-52, Will, IL
Built 1900 Load: 24.3 t ADT: 50
GOUGAR RD.
FairOver: SPRING CREEK
0.2M.N.OF US-6, Will, IL
Built 1900 Load: 24.3 t ADT: 6,750
WOLF RD
FairOver: TRIB. HICKORY CR
0.15 MI N US 30, Will, IL
Built 1937 Load: 24.3 t ADT: 10,800
135TH ST
FairOver: LILY CACHE CR
1.75M E OF IL59, Will, IL
Built 2004 Load: 24.3 t ADT: 5,400
S Powerhouse Drive
FairOver: DesPlaines River
0.3 MI N OF W 9TH ST, Will, IL
Built 2005 Load: 24.3 t ADT: 525
WILDCAT DRIVE
FairOver: TRIB TO CRAB ORCH CK
SOUTH EDGE OF MARION, Williamson, IL
Built 1980 Load: 24.3 t ADT: 2,700
BOYTON ST
FairOver: DRAINAGE DITCH
BOYTON E OF PARK DR, Williamson, IL
Built 1967 Load: 24.3 t ADT: 2,400
SPRING CREEK ROAD
FairOver: SPRING CREEK
0.5 MI E IL 251, Winnebago, IL
Built 1930 Load: 24.3 t ADT: 16,300
COUNTY LINE ROAD
FairOver: N. KINNICKINNICK CRK
1.1 MI N ELEVATOR RD, Winnebago, IL
Built 1960 Load: 24.3 t ADT: 800
YALE BRIDGE RD
FairOver: UNNAMED CREEK
0.2 MI E WHEELER RD, Winnebago, IL
Built 1932 Load: 24.3 t ADT: 325
KLINGER RD
FairOver: SUMNER CREEK
0.6 MI N KELLEY RD, Winnebago, IL
Built 1948 Load: 24.3 t ADT: 125
SAUNDERS RD
FairOver: COOLIDGE CREEK
0.5 MI E AHRENS ROAD, Winnebago, IL
Built 1957 Load: 24.3 t ADT: 800
DURAND RD
FairOver: S FORK OTTER CREEK
0.6 MI E BEST ROAD, Winnebago, IL
Built 1968 Load: 24.3 t ADT: 1,100
HARRISON ROAD
FairOver: KENT CREEK
0.7 N AUBURN ST, Winnebago, IL
Built 1957 Load: 24.3 t ADT: 100
MERIDIAN RD
FairOver: DRAINAGE
5 MI NE WINNEBAGO, Winnebago, IL
Built 1956 Load: 24.3 t ADT: 3,300
EISENHOWER DRIVE
FairOver: SPRING CREEK
0.1 M S SPRING CR RD, Winnebago, IL
Built 1963 Load: 24.3 t ADT: 550
GRAND AVE
FairOver: LOVES PARK CREEK
CENTER LOVES PARK, Winnebago, IL
Built 1961 Load: 24.3 t ADT: 325
LOVES PARK DRIVE
FairOver: LOVES PARK CRREK
CENTER LOVES PARK, Winnebago, IL
Built 1960 Load: 24.3 t ADT: 525
PEBBLE CREEK TRAIL
FairOver: UNNAMED CREEK
NORTHEAST LOVES PARK, Winnebago, IL
Built 1973 Load: 24.3 t ADT: 650
HONONEGAH PRES RD
FairOver: DRY RUN CREEK
1 MI SE OF ROCKTON, Winnebago, IL
Built 1925 Load: 24.3 t ADT: 100
KISHWAUKEE PRES RD
FairOver: BR KISHWAUKEE RIVER
0.3 MI W MULFORD RD, Winnebago, IL
Built 1901 Load: 24.3 t ADT: 75
TR 92A
FairOver: TRIB WALNUT CR
2 MI E METMORA, Woodford, IL
Built 1930 Load: 24.3 t ADT: 10
WASHBURN ST
FairOver: SNAG CR
WASHBURN, Woodford, IL
Built 1971 Load: 24.3 t ADT: 175
TR 145
FairOver: BR WALNUT CR
1025 EAST 1200 NORTH, Woodford, IL
Built 1974 Load: 24.3 t ADT: 50
TR 88
FairOver: MILL CREEK
1200 EAST 675 NORTH, Woodford, IL
Built 1945 Load: 24.3 t ADT: 350
TR 76
FairOver: DRY CREEK
1050 EAST 2150 NORTH, Woodford, IL
Built 1946 Load: 24.3 t ADT: 150
TR 39
FairOver: DRY CREEK
2100 North 1152 East, Woodford, IL
Built 1960 Load: 24.3 t ADT: 200
TR 140
FairOver: SNAG CREEK
1700 EAST 1825 NORTH, Woodford, IL
Built 1946 Load: 24.3 t ADT: 50
TR 174
FairOver: HALLENBACH CREEK
2000 EAST 2000 NORTH, Woodford, IL
Built 1953 Load: 24.3 t ADT: 50
TR 16
FairOver: ORCHARD CK
1 MILE SO OF THEBES, Alexander, IL
Built 1971 Load: 24.6 t ADT: 25
SHATTUCK RD
FairOver: MOSQUITO CREEK
3.0 MI E BELVIDERE, Boone, IL
Built 1958 Load: 24.6 t ADT: 750
N STONE BRIDGE ROA
FairOver: BR OF STRADDLE CR
.5 MI W LANARK, Carroll, IL
Built 1964 Load: 24.6 t ADT: 225
I-74
FairOver: STREAM
1.5 MI E OF URBANA, Champaign, IL
Built 1959 Load: 24.6 t ADT: 28,300
TR 236
FairOver: E BRANCH EMBARRAS R
4.0 MI NW LONGVIEW, Champaign, IL
Built 1972 Load: 24.6 t ADT: 25
SANFORD ST
FairOver: E LAKE FORK DRAIN D
IN IVESDALE, Champaign, IL
Built 1972 Load: 24.6 t ADT: 100
Showing 5,651-5,700 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 |