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
IL 13 EB
FairOver: MUD CREEK
2 MI E IL 13/127, Jackson, IL
Built 2010 Load: 52.2 t ADT: 15,100
US 52
FairOver: ROODS CREEK
9 M W OF IL 47, Kendall, IL
Built 1992 Load: 52.2 t ADT: 1,300
WB US 34
FairOver: CEDAR CREEK
SW EDGE OF GALESBURG, Knox, IL
Built 1979 Load: 52.2 t ADT: 8,950
IL 180
FairOver: CADWELL CR
1.5 MI N WILLIAMSFLD, Knox, IL
Built 2000 Load: 52.2 t ADT: 400
I-55/I-74 SB
FairOver: Union Pacific Railroad
2.4 MI S JT I55 ILL9, McLean, IL
Built 1963 Load: 52.2 t ADT: 21,550
I-55/I-74 SB
FairOver: SUGAR CREEK
1.0 MI S JCT ILL 9, McLean, IL
Built 1963 Load: 52.2 t ADT: 21,550
I-55/I-74 NB
FairOver: SUGAR CREEK
1.0 MI SO I55 &ILL 9, McLean, IL
Built 1963 Load: 52.2 t ADT: 21,550
ILL 94
FairOver: EDWARDS RIVER
1.9 MI N OF ILL 17, Mercer, IL
Built 1960 Load: 52.2 t ADT: 3,450
Ramp to IL 3 SB
FairOver: PALMER CREEK
0.8 mi S of I-255, Monroe, IL
Built 1991 Load: 52.2 t ADT: 1,350
IL 104
FairOver: NORFOLK SOUTHERN RY.
.5M S IL 78,JACKSVL, Morgan, IL
Built 1961 Load: 52.2 t ADT: 2,150
LINCOLN AVE.
FairOver: TOWN BROOK
LINCOLN AT BROOK, Morgan, IL
Built 1961 Load: 52.2 t ADT: 4,600
MONTAGUE ROAD
FairOver: BR MIDDLE CREEK
5.5 MI N OF BYRON, Ogle, IL
Built 1982 Load: 52.2 t ADT: 1,500
ILL 90
FairOver: PRINCE RUN
W EDGE OF PRINCEVILE, Peoria, IL
Built 1933 Load: 52.2 t ADT: 1,450
FAP 770 (IL 128)
FairOver: UP RR
1.75 MI S FINDLAY RD, Shelby, IL
Built 2003 Load: 52.2 t ADT: 2,850
FAP-821 (ILL-15)
FairOver: SHOE CREEK
NCL WAYNE CITY, Wayne, IL
Built 1958 Load: 52.2 t ADT: 3,500
FAP-855 (ILL-14)
FairOver: SEVEN MILE CREEK
3 MI E ENFIELD JCT, White, IL
Built 1996 Load: 52.2 t ADT: 3,000
PILGRIM RD
FairOver: JORDAN CREEK
6.5 MI N OF STERLING, Whiteside, IL
Built 1992 Load: 52.2 t ADT: 1,850
FAI 90 NB
FairOver: DRY CREEK
1.0 MI SOUTH RT 75, Winnebago, IL
Built 2012 Load: 52.2 t ADT: 25,500
ILL 26
FairOver: BLALOCK CREEK
14.75 MI S OF ILL 17, Woodford, IL
Built 1991 Load: 52.2 t ADT: 2,800
IL 121 (FAP 773)
FairOver: COTTONWOOD CREEK
1 MI SE OF TOLEDO, Cumberland, IL
Built 1960 Load: 52.5 t ADT: 3,150
ILL 34
FairOver: EWING CREEK
2 MI NW THOMPSONVILL, Franklin, IL
Built 1928 Load: 52.5 t ADT: 2,550
ILL RT 84
FairOver: APPLE RIVER TRIB.
2.0 MI S. HANOVER, Jo Daviess, IL
Built 2011 Load: 52.5 t ADT: 1,200
ILL RT 84
FairOver: APPLE RIVER
IN HANOVER, Jo Daviess, IL
Built 2014 Load: 52.5 t ADT: 2,100
IL 146-FAP 885
FairOver: CN/IC RAILROAD
0.3 MI W POPE CO, Johnson, IL
Built 2002 Load: 52.5 t ADT: 900
I-55 SB
FairOver: NORFOLK & SO. RR
0.5 MI N. IL 17, Livingston, IL
Built 2011 Load: 52.5 t ADT: 11,450
I-55 NB
FairOver: NORFOLK & SO RR
0.5 MI N OF IL 17, Livingston, IL
Built 2011 Load: 52.5 t ADT: 11,450
ILL 108
FairOver: JOE'S CREEK
4MI. E JCT108&IL 267, Macoupin, IL
Built 1989 Load: 52.5 t ADT: 800
IL 29
FairOver: BOYD'S HOLLOW
0.5M S MOSSVILLE RD, Peoria, IL
Built 2015 Load: 52.5 t ADT: 11,400
ILL 146
FairOver: DUTCH CREEK
4 MI W. JONESBORO, Union, IL
Built 1974 Load: 52.5 t ADT: 4,050
US 30 SPUR N B
FairOver: ELKHORN CREEK
.32MI S OF MOLINE RD, Whiteside, IL
Built 1972 Load: 52.5 t ADT: 4,100
IL 40 FAP 646
FairOver: WALNUT SPECIAL DITCH
3.1 MI S JCT ILL 92, Bureau, IL
Built 1933 Load: 52.8 t ADT: 1,950
FAS 533
FairOver: STREAM
MARKET ST N CHMPGN, Champaign, IL
Built 1968 Load: 52.8 t ADT: 3,750
TR 12A
FairOver: PRAIRIE FORK
1.5 W MORRISONVILLE, Christian, IL
Built 1976 Load: 52.8 t ADT: 100
STONY ISL SB TO E9
FairOver: GROUND
0.14 M N 79TH P7C, Cook, IL
Built 1958 Load: 52.8 t ADT: 5,000
CH 8(FAS 679)
FairOver: STREAM
3 MI W OF ST BERNICE, Edgar, IL
Built 1963 Load: 52.8 t ADT: 50
FAS 452-CH 2
FairOver: SWEGLE CREEK
E1/2-9-T8NR2E, Fulton, IL
Built 1951 Load: 52.8 t ADT: 375
FAI 74 NB
FairOver: EDWARDS RIVER
2 MI S JCT ILL 81, Henry, IL
Built 1968 Load: 52.8 t ADT: 7,150
IL 31
FairOver: RR - BNSF
0.5 M S OF US 30, Kane, IL
Built 1960 Load: 52.8 t ADT: 14,200
I-24 RAMP 260
FairOver: NEW COLUMBIA DITCH
NEW COLUMBIA INTERCH, Massac, IL
Built 1978 Load: 52.8 t ADT: 300
COUNTY HIGHWAY 5
FairOver: B.N.R.R.
2.5 MILE EAST JOPPA, Massac, IL
Built 1975 Load: 52.8 t ADT: 2,200
FAS 473 CH 8
FairOver: TURKEY CREEK
W EDGE LEXINGTON, McLean, IL
Built 1946 Load: 52.8 t ADT: 2,750
ILL 152
FairOver: PANTHER CREEK
1.6 MI E OF ILL 13, Perry, IL
Built 2010 Load: 52.8 t ADT: 2,300
I-74 (EB)
FairOver: STONY CREEK
1 MI NE FITHIAN, Vermilion, IL
Built 1959 Load: 52.8 t ADT: 12,600
I-74 (WB)
FairOver: STONY CREEK
1 MI NE FITHIAN, Vermilion, IL
Built 1959 Load: 52.8 t ADT: 12,600
REALIGNED IL 3
FairOver: TRIB OF MILLER CREEK
1/4 MI SO OF THEBES, Alexander, IL
Built 1991 Load: 53.1 t ADT: 3,200
IL 92 FAP 587
FairOver: STREAM
3.3 MI. W. OF US 34, Bureau, IL
Built 1991 Load: 53.1 t ADT: 750
I- 94 NB BISHOP FO
FairOver: RR - NS & WOODLAWN A
1.7 M SE I-57, Cook, IL
Built 1960 Load: 53.1 t ADT: 66,250
IL 43 NB (HARLEM)
FairOver: RR - CN
0.1 M S I-55, Cook, IL
Built 1931 Load: 53.1 t ADT: 39,000
I-290 EB IKE-IL 11
FairOver: RR - CTA
0.2 M E CENTRAL AV, Cook, IL
Built 1954 Load: 53.1 t ADT: 89,150
WOLF RD
FairOver: ADDISON CREEK
0.2 M N IL 64, Cook, IL
Built 1932 Load: 53.1 t ADT: 11,800
Showing 13,451-13,500 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.