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
ILL 3
PoorOver: DRAINAGE DITCH
0.5 MI.W. ILL 127, Alexander, IL
Built 1948 Load: 37.9 t ADT: 2,500
FAS 515(CH 22)
PoorOver: SUGAR CREEK
5 MI N OF PENFIELD, Champaign, IL
Built 1987 Load: 37.9 t ADT: 175
TR 198
PoorOver: MOSQUITO CREEK
2 MI NE MT AUBURN, Christian, IL
Built 2000 Load: 37.9 t ADT: 20
IL 23
PoorOver: DEER CREEK TRIB.
1 MI N JCT ILL 72, DeKalb, IL
Built 1987 Load: 37.9 t ADT: 3,600
NORTH STATE ROAD
PoorOver: DEER CREEK
3310N 1310E, DeKalb, IL
Built 1999 Load: 37.9 t ADT: 1,300
US 24
PoorOver: DUCK CR
5.5 MI SW BANNER, Fulton, IL
Built 1934 Load: 37.9 t ADT: 2,100
TR 2 LA SALLE RD
PoorOver: TRIB TO JOHNNY RUN
.15 MI S SCULLY RD, Grundy, IL
Built 1985 Load: 37.9 t ADT: 25
TR 236
PoorOver: SPRING CREEK
6.0 MI SE GENESEO, Henry, IL
Built 1948 Load: 37.9 t ADT: 75
US 6 FAP 623
PoorOver: FOX RIVER
0.68 MI E OF ILL 23, LaSalle, IL
Built 1928 Load: 37.9 t ADT: 10,700
STEWARD ROAD
PoorOver: DRAINAGE DITCH
0.9 MI S OF US 30, Lee, IL
Built 1983 Load: 37.9 t ADT: 75
TR 117
PoorOver: WEAVER CREEK
1 MI NORTH METROPOLI, Massac, IL
Built 1980 Load: 37.9 t ADT: 275
TR 140
PoorOver: JONATHAN CREEK
1.2 MI N WILLIAMSBUR, Moultrie, IL
Built 1983 Load: 37.9 t ADT: 100
ILL 3
PoorOver: NINE MILE CREEK
4 MI S EVANSVILLE, Randolph, IL
Built 1952 Load: 37.9 t ADT: 5,650
ILL 159
PoorOver: DOUGLAS CREEK
0.8 M N SMITHTON, St. Clair, IL
Built 1954 Load: 37.9 t ADT: 9,400
I-64 EB
PoorOver: NSRR
0.3 mi E of IL 161, St. Clair, IL
Built 1971 Load: 37.9 t ADT: 15,500
FAS 331(CH 10)
PoorOver: FOUNTAIN CREEK
1 MI N OF EAST LYNN, Vermilion, IL
Built 1993 Load: 37.9 t ADT: 250
US 34 & 67 (NB)
PoorOver: BNSF RR (079039A)
.8 MI N JCT US 34&67, Warren, IL
Built 1975 Load: 37.9 t ADT: 8,100
FAS 1425
PoorOver: ROCK CREEK
2 MI NW OF FERRIS, Hancock, IL
Built 1988 Load: 38.2 t ADT: 20
TR 163
PoorOver: LA MOINE RIVER
4.0 MI SW FOUNTAIN G, Hancock, IL
Built 1980 Load: 38.2 t ADT: 100
WATER ST/N 4550TH
PoorOver: INDIAN CREEK
0.44 MI N OF US 34, LaSalle, IL
Built 1925 Load: 38.2 t ADT: 275
FAP-332 (ILL-1)
PoorOver: INDIAN CREEK
2 MI S LAWRENCEVILLE, Lawrence, IL
Built 1957 Load: 38.2 t ADT: 2,550
GREEN WING ROAD
PoorOver: GREEN RIVER
1.9 MI S LEE CENTER, Lee, IL
Built 1970 Load: 38.2 t ADT: 200
TR 85 NIKE RD
PoorOver: RICHLAND CREEK
1 MI E OF HECKER, Monroe, IL
Built 2001 Load: 38.2 t ADT: 425
TR7B-BUTTER RIDGE
PoorOver: BIG CREEK
2.5 MI NE ULLIN, Pulaski, IL
Built 2001 Load: 38.2 t ADT: 100
I-64 WB
PoorOver: NSRR
0.3 mi E of IL 161, St. Clair, IL
Built 1971 Load: 38.2 t ADT: 15,500
TR 4
PoorOver: BLUE CREEK
1.1 MI E ILL 26, Woodford, IL
Built 1987 Load: 38.2 t ADT: 425
TR 146
PoorOver: PANTHER CREEK
1.5MI SE CHANDLERVIL, Cass, IL
Built 1997 Load: 38.6 t ADT: 50
US 150(FAP 91)
PoorOver: Decatur & Eastern IL RR
2.8 MI E OF PARIS, Edgar, IL
Built 1967 Load: 38.6 t ADT: 3,250
ILL 71 AT CEDAR PT
PoorOver: CEDAR CREEK
2.95 MI W OF US 51, LaSalle, IL
Built 1929 Load: 38.6 t ADT: 2,250
ILL 116
PoorOver: SCATTERING POINT CR
8.03 MI W OF I-55, Livingston, IL
Built 1970 Load: 38.6 t ADT: 3,050
PENN CORNER RD
PoorOver: PINE CREEK
4.5 MI NW GRAND DET, Ogle, IL
Built 1961 Load: 38.6 t ADT: 200
IL 49 (FAP 840)
PoorOver: Union Pacific Railroad
1.8 MI N OF US 136, Vermilion, IL
Built 1941 Load: 38.6 t ADT: 1,350
TR 207
PoorOver: CREEK
4.5 MI S PHILLIPSTOW, White, IL
Built 1998 Load: 38.6 t ADT: 25
IL 1 (FAP 332)
PoorOver: CSX RR
0.5 MI N OF US 40, Clark, IL
Built 1940 Load: 38.9 t ADT: 8,100
COURT ROAD/TR177
PoorOver: LAKE BRANCH
1 MI NW OF ALBERS, Clinton, IL
Built 1992 Load: 38.9 t ADT: 225
FOSTER AVE
PoorOver: N BR CHI RIV CENTER
0.1 M E PULASKI RD, Cook, IL
Built 1933 Load: 38.9 t ADT: 19,100
OLYMPIAN WAY
PoorOver: BUTTERFIELD CR
.25M N OF LINCLN P21, Cook, IL
Built 1974 Load: 38.9 t ADT: 5,700
I-57 (NB)
PoorOver: Eastern Illinois RR
.3 MI S NEOGA INT, Cumberland, IL
Built 1964 Load: 38.9 t ADT: 9,450
HINCKLEY ROAD
PoorOver: BATTLE CREEK
1140N 1600F, DeKalb, IL
Built 1977 Load: 38.9 t ADT: 1,100
US 45 & US 52
PoorOver: PRAIRIE CREEK
1.33 MI N OF US 52-IL 49, Iroquois, IL
Built 1952 Load: 38.9 t ADT: 3,250
KIRK ROAD
PoorOver: UNION PACIFIC R.R.
1 MI E GENEVA, Kane, IL
Built 1974 Load: 38.9 t ADT: 29,300
LIEVAN RD
PoorOver: 3 MI BRANCH
2 MI SW OF DIXON, Lee, IL
Built 1986 Load: 38.9 t ADT: 10
TR 109 A
PoorOver: Trib Long Pt Slough
.5 MI E OF NIANTIC, Macon, IL
Built 2001 Load: 38.9 t ADT: 75
FAU 8494 EAST ST
PoorOver: BALTIMORE & OHIO RR
OLNEY, Richland, IL
Built 1981 Load: 38.9 t ADT: 3,050
IL 70
PoorOver: TRIB. OF PECATONICA
.6 MI W CEMETERY RD, Winnebago, IL
Built 1982 Load: 38.9 t ADT: 3,500
ILL 70
PoorOver: TRIB. OF PECATONICA
.1 MI W CEMETERY RD, Winnebago, IL
Built 1982 Load: 38.9 t ADT: 2,950
CH 12
PoorOver: BUREAU CREEK
6.0 M NE OF PRINCTON, Bureau, IL
Built 1977 Load: 39.2 t ADT: 75
FAS-2789 (CH-18)
PoorOver: ICG RR
4 MI NW XENIA, Clay, IL
Built 1986 Load: 39.2 t ADT: 150
I- 94 NB BISHOP FO
PoorOver: LITTLE CAL RIVER
1.3 M N IL 83, Cook, IL
Built 1949 Load: 39.2 t ADT: 83,450
CH 14 SHERRY CREEK
PoorOver: SHERRY CREEK
2.9MI WEST OF WORDEN, Madison, IL
Built 1984 Load: 39.2 t ADT: 100
Showing 26,851-26,900 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 |