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-6
Structurally DeficientOver: EAST FORK KASKASKIA
1.5 MI NW FAIRMAN, Marion, IL
Built 1961 ADT: 75
TR-213
Structurally DeficientOver: LOST CREEK
1 MI N SANDOVAL, Marion, IL
Built 1972 ADT: 25
TR-445A
Structurally DeficientOver: ICG RR
2.5 MI S HELM, Marion, IL
Built 1909 ADT: 10
ILL 117
Structurally DeficientOver: SOUTH BR CROW CREEK
6.75 MI S OF ILL 17, Marshall, IL
Built 1932 ADT: 650
TR 208
Structurally DeficientOver: SLEEPY HOLLOW DITCH
4 SW OF MASON CITY, Mason, IL
Built 1986 ADT: 25
TR 82
Structurally DeficientOver: ICG RR
3 MI.S.BIG BAY STA., Massac, IL
Built 1900 ADT: 25
TR 225
Structurally DeficientOver: E.F. LAMOINE RIVER
CTR-11-T5NRN4W, McDonough, IL
Built 1900 ADT: 125
WHITE OAKS RD
Structurally DeficientOver: W BRANCH PISCASAW CR
1.8 MI N PERKINS RD, McHenry, IL
Built 1947 ADT: 50
VANDER KARR RD
Structurally DeficientOver: BR OF NIPPERSINK CR
2 MI E OF IL 47, McHenry, IL
Built 1981 ADT: 1,550
LAKE VIEW DRIVE
Structurally DeficientOver: ISLAND LAKE
N OF ILL 176, McHenry, IL
Built 1975 ADT: 450
TR 218
Structurally DeficientOver: CAMP CREEK
SE-16-T15N,R2W, Mercer, IL
Built 1983 ADT: 75
CH 12
Structurally DeficientOver: DRAINAGE CANAL
0.1 M W VALMEYER C L, Monroe, IL
Built 1935 ADT: 400
TR 167 A
Structurally DeficientOver: FAWN CREEK
4.1 M W OF WITT, Montgomery, IL
Built 1900 ADT: 25
TR 457
Structurally DeficientOver: DRY FORK CRK.
4.6 MI S FILLMORE, Montgomery, IL
Built 1954 ADT: 50
TR 314
Structurally DeficientOver: MDL FK SHOAL CR
4.2 M NW WENONAH, Montgomery, IL
Built 1969 ADT: 75
TR 260
Structurally DeficientOver: CONOVER CREEK
3.5 MI E LITERBERRY, Morgan, IL
Built 1955 ADT: 25
TR 137
Structurally DeficientOver: B&N RR
.5 M N J'VILLE, Morgan, IL
Built 1900 ADT: 50
SO SECOND STREET
Structurally DeficientOver: KYTE CREEK
ROCHELLE S 2ND ST, Ogle, IL
Built 1975 ADT: 125
TR 330
Structurally DeficientOver: HOG CREEK
0.1 MI S FAS 867, Perry, IL
Built 1940 ADT: 25
TR 69A
Structurally DeficientOver: MIDDLE FK MCKEE TR1B
4.0 MI SW PERRY, Pike, IL
Built 1920 ADT: 50
UNION ST
Structurally DeficientOver: SPRING CREEK
NEBO S CORP LIMITS, Pike, IL
Built 1941 ADT: 150
TR-261
Structurally DeficientOver: BONPAS CREEK
2.25 MI NW BERRYVL, Richland, IL
Built 1909 ADT: 25
WERNER RD/ FAU 925
Structurally DeficientOver: SOUTHERN RR
0.3 MI E 74 ST, St. Clair, IL
Built 1960 ADT: 525
FAS 1372-CH 13
Structurally DeficientOver: CAMP RUN CREEK
NW COR-17-T12NR7E, Stark, IL
Built 1959 ADT: 650
CANDLEWOOD LN
Structurally DeficientOver: FARM CREEK
CTR-23-T26NR3W, Tazewell, IL
Built 1894 ADT: 150
TR-259
Structurally DeficientOver: SKILLET FORK
2 MI SW ORCHARDVILLE, Wayne, IL
Built 1909 ADT: 25
TR-287A
Structurally DeficientOver: LITTLE DRY FORK
6 MI N SIMS, Wayne, IL
Built 1940 ADT: 25
TR 231
Structurally DeficientOver: NEWTON BRANCH
2.5 MI SE MT ERIE, Wayne, IL
Built 1999 ADT: 25
TR-627
Structurally DeficientOver: POND CREEK
4.5 MI S GOLDEN GATE, Wayne, IL
Built 1984 ADT: 35
TR-15
Structurally DeficientOver: CREEK
5 MI SW GRAYVILLE, White, IL
Built 1958 ADT: 25
TR-291
Structurally DeficientOver: DRAINAGE DITCH
4 MI W RISING SUN, White, IL
Built 1930 ADT: 150
HIGHLAND RD
Structurally DeficientOver: BLACK WALNUT CREEK
0.2 MI N PAULING RD, Will, IL
Built 1978 ADT: 200
ROSCOE RD
Structurally DeficientOver: ROCK RIVER
0.2 MI. W. IL 251, Winnebago, IL
Built 1967 ADT: 10,700
FAS 363 CH 7
Structurally DeficientOver: PANTHER CREEK
4.5 MI SW SECOR, Woodford, IL
Built 1979 ADT: 525
FAS 363 CH 7
Structurally DeficientOver: PANTHER CR OVERFLOW
4.6 MI SW SECOR, Woodford, IL
Built 1979 ADT: 525
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
TR-290
Structurally DeficientOver: Martinton Ditch #3
1MI E MARTINTON, Iroquois, IL
Built 1959 Load: 2.3 t ADT: 175
TR 343
Structurally DeficientOver: S. FORK SANGAMON R.
8 W OF ROSAMOND, Christian, IL
Built 1900 Load: 2.6 t ADT: 25
BROOKWOOD DR
Structurally DeficientOver: BUTTERFIELD CREEK
2600 W 19700S P21, Cook, IL
Built 1963 Load: 2.9 t ADT: 250
TR-175
Structurally DeficientOver: CREEK
1 MI N COWLING, Wabash, IL
Built 1909 Load: 2.9 t ADT: 25
TR 620 A
Structurally DeficientOver: STREAM
3 MI NE MT ERIE, Wayne, IL
Built 2009 Load: 2.9 t ADT: 10
TR 15
Structurally DeficientOver: STREAM
5.5 MI N MT ERIE, Wayne, IL
Built 2009 Load: 2.9 t ADT: 25
TR-304
Structurally DeficientOver: LITTLE SALT CREEK
3 MI NW DIETERICH, Effingham, IL
Built 1909 Load: 3.6 t ADT: 50
IMBS STATION RD
Structurally DeficientOver: PRAIRIE DUPONT CK
2.0 MI W IL 163, St. Clair, IL
Built 1997 Load: 3.6 t ADT: 900
TR 307
Structurally DeficientOver: Adams Creek
E. EDGE OF DEPUE, Bureau, IL
Built 1950 Load: 3.9 t ADT: 50
TR 343
Structurally DeficientOver: S. FORK SANGAMON R.
8 W OF ROSAMOND, Christian, IL
Built 1900 Load: 3.9 t ADT: 25
TR 25
Structurally DeficientOver: DRAINAGE DITCH
2 MI N OF OREANA, Macon, IL
Built 1985 Load: 3.9 t ADT: 50
Showing 27,101-27,150 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 |