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 1881
FairOver: LITTLE MUDDY OVERFLO
4 MI E OF DUQUOIN, Perry, IL
Built 1993 Load: 32.4 t ADT: 900
CH 17
FairOver: LITTLE MUDDY RIVER
0.3 MI W JEFFERSN CO, Perry, IL
Built 1994 Load: 32.4 t ADT: 75
TR 233
FairOver: TRIB TO BEAUCOUP CR
1.6 MI E IL 13, Perry, IL
Built 1997 Load: 32.4 t ADT: 200
TR241-SACREDHEART
FairOver: WILLIAM CREEK
0.27 MI E TR 182C, Perry, IL
Built 1999 Load: 32.4 t ADT: 175
TR 182C-CUDGETOWN
FairOver: WILLIAM CREEK
0.7 MI N OF IL 152, Perry, IL
Built 1999 Load: 32.4 t ADT: 25
TR 67
FairOver: WOLF CR
5.0 MI NW P'VILLE, Perry, IL
Built 1993 Load: 32.4 t ADT: 100
TR 71
FairOver: LITTLE BEAUCOUP CRK
0.6 MI E OF FAS 1821, Perry, IL
Built 2003 Load: 32.4 t ADT: 100
TR 71
FairOver: WHITE WALNUT CREEK
1.9 MI W TAMAROA, Perry, IL
Built 2002 Load: 32.4 t ADT: 100
TR 174 A
FairOver: LITTLE BEAUCOUP CRK
0.3 MI W FAS 1821, Perry, IL
Built 2004 Load: 32.4 t ADT: 25
SPRUCE ROAD
FairOver: TRIB TO HOG CREEK
4MI NE OF DUQUOIN, Perry, IL
Built 2006 Load: 32.4 t ADT: 25
SASSAFRAS RD
FairOver: REESE CREEK TRIB
1.5M E US51 ST JOHNS, Perry, IL
Built 2012 Load: 32.4 t ADT: 75
PINTAIL ROAD
FairOver: LITTLE BEAUCOUP CREE
2.0 M SW OF TAMAROA, Perry, IL
Built 2013 Load: 32.4 t ADT: 125
CH 14
FairOver: LAKE FORK DRAIN DIT
5.0 MI N ATWOOD, Piatt, IL
Built 1976 Load: 32.4 t ADT: 25
TR 9
FairOver: S BRANCH SALT CREEK
1 MI W OF HARRIS, Piatt, IL
Built 1978 Load: 32.4 t ADT: 50
TR 71
FairOver: STREAM
3.5 MI SW DELAND, Piatt, IL
Built 1983 Load: 32.4 t ADT: 50
TR 47
FairOver: MADDEN CREEK
2.0 MI SE GALESVILLE, Piatt, IL
Built 1983 Load: 32.4 t ADT: 50
TR 178
FairOver: CAMP CREEK
2.5 M SE WHITE HEATH, Piatt, IL
Built 1985 Load: 32.4 t ADT: 75
TR 185
FairOver: DRAINAGE DITCH
4.5 MI SE MILMINE, Piatt, IL
Built 1980 Load: 32.4 t ADT: 50
TR 55
FairOver: GOOSE CREEK
0.5 MI SW DELAND, Piatt, IL
Built 1980 Load: 32.4 t ADT: 50
TR 164
FairOver: SANGAMON RIVER
0.5 MI S CO FOR PRES, Piatt, IL
Built 1983 Load: 32.4 t ADT: 75
TR 5
FairOver: TRIB SALT CREEK
0.7 MI NE HARRIS, Piatt, IL
Built 1983 Load: 32.4 t ADT: 75
TR 129
FairOver: LAKE FORK TRIBUTARY
2.1 MI NW IVESDALE, Piatt, IL
Built 1986 Load: 32.4 t ADT: 25
TR 123
FairOver: KANKAKEE DRAIN DITCH
3.0 MI N IVESDALE, Piatt, IL
Built 1984 Load: 32.4 t ADT: 50
TR 72
FairOver: GOOSE CREEK
1 MI NW MONTICELLO, Piatt, IL
Built 1990 Load: 32.4 t ADT: 75
TR 26
FairOver: GOOSE CREEK
1 MI SW OF DELAND, Piatt, IL
Built 1995 Load: 32.4 t ADT: 25
FAS 538(CH 5)
FairOver: GOOSE CREEK DRAIN D
1.8 MI S OF DELAND, Piatt, IL
Built 1992 Load: 32.4 t ADT: 1,100
TR 161
FairOver: LAKE FORK DRAIN DIT
2 MI SE OF BEMENT, Piatt, IL
Built 1993 Load: 32.4 t ADT: 50
ILL 100 & 106
FairOver: LITTLE BLUE CREEK
W EDGE FLORENCE, Pike, IL
Built 1954 Load: 32.4 t ADT: 1,300
I-72
FairOver: BLUE CREEK
0.25 mi W IL 107, Pike, IL
Built 1988 Load: 32.4 t ADT: 8,000
I-72/US 36 WB EX R
FairOver: DRAINAGE DITCH
IL 96/HULL INTCHG, Pike, IL
Built 1987 Load: 32.4 t ADT: 125
TR 41
FairOver: MIDDLE FORK MCKEE CR
0.25 MI W PERRY, Pike, IL
Built 1977 Load: 32.4 t ADT: 125
TR 7
FairOver: MIDDLE FK MCKEE TRIB
3.0 MI N PERRY, Pike, IL
Built 1977 Load: 32.4 t ADT: 25
CH 1
FairOver: KISER CREEK TRIBUTAR
E EDGE NEW CANTON, Pike, IL
Built 1977 Load: 32.4 t ADT: 625
TR 130A
FairOver: HADLEY CREEK
1.5 MI NE BARRY, Pike, IL
Built 1978 Load: 32.4 t ADT: 50
TR 97A AGG SURF RO
FairOver: BEEBEE CREEK
3 MI N 2 MI W BARRY, Pike, IL
Built 1980 Load: 32.4 t ADT: 25
FAS 2601 TOWNSHIP
FairOver: FLINT CREEK
1 M E SE GRIGGSVILLE, Pike, IL
Built 1980 Load: 32.4 t ADT: 300
TR 201C AGG SURF R
FairOver: BAY CREEK
1.5 MILE SW NEWSALEM, Pike, IL
Built 1980 Load: 32.4 t ADT: 25
TR 298B AGG SURF R
FairOver: BRANCH OF BAY CREEK
3.3 MI.N. PITTSFIELD, Pike, IL
Built 1980 Load: 32.4 t ADT: 50
TR 179 AGG SURF RO
FairOver: BAY CREEK
0.5 MILE SW NEWSALEM, Pike, IL
Built 1980 Load: 32.4 t ADT: 100
TR 259 AGG SURF RO
FairOver: THE SNY
4.5 MI S HULL, Pike, IL
Built 1981 Load: 32.4 t ADT: 50
TR 321 AGG SURF RO
FairOver: BAY CREEK
1 MI N 1.1 MI E TIME, Pike, IL
Built 1981 Load: 32.4 t ADT: 25
TR 41 AGG SURF ROA
FairOver: BROWER CREEK
3.72 MI W NW PERRY, Pike, IL
Built 1981 Load: 32.4 t ADT: 50
TOWNSHIP ROAD 343
FairOver: SIX MILE CREEK
1.25 MI SUMMER HILL, Pike, IL
Built 1981 Load: 32.4 t ADT: 50
TR 340 AGG SURF RO
FairOver: BAY CREEK
1.5 M NE PITTSFIELD, Pike, IL
Built 1981 Load: 32.4 t ADT: 50
TR 281
FairOver: THE SNY
3 MI. SW NEW CANTON, Pike, IL
Built 1982 Load: 32.4 t ADT: 100
TR 97A
FairOver: BRANCH BEEBEE CREEK
4 MI NW BARRY SEC 4, Pike, IL
Built 1981 Load: 32.4 t ADT: 25
TR 274 AGG.SURF.RO
FairOver: BAY CREEK
3 MI NW PITTSFIELD, Pike, IL
Built 1982 Load: 32.4 t ADT: 350
TR 133
FairOver: CROZIER CREEK
1.5 MI S EL DARA, Pike, IL
Built 1983 Load: 32.4 t ADT: 25
TR 320
FairOver: S FORK MCKEE CREEK
2.25 NW GRIGGSVILLE, Pike, IL
Built 1983 Load: 32.4 t ADT: 50
TR 320
FairOver: S FORK MCKEE CR TRIB
2.25 NW GRIGGSVILLE, Pike, IL
Built 1983 Load: 32.4 t ADT: 50
Showing 9,251-9,300 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.