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
MUIRHEAD RD.
PoorOver: CC&P RR
0.5 M N. of Bowes Rd, Kane, IL
Built 1989 Load: 18.5 t ADT: 2,900
SBI 36
PoorOver: BLUE CREEK
1MI W DETROIT, Pike, IL
Built 1922 Load: 18.5 t ADT: 25
TR-170 (UNSICKER R
PoorOver: DILLON CREEK
E.CTR-36-T25NR4W, Tazewell, IL
Built 1965 Load: 18.5 t ADT: 375
TR 190
PoorOver: BR NORTH CREEK
1.5 MI W-0.5 MI S HO, Washington, IL
Built 1920 Load: 18.5 t ADT: 25
TR 18
PoorOver: W FORK SPOON RIVER
4 MI SW OF NEPONSET, Bureau, IL
Built 1956 Load: 18.8 t ADT: 75
TR 197
PoorOver: CLEAR CREEK
5MI NW PALMER, Christian, IL
Built 1900 Load: 18.8 t ADT: 35
CH-19
PoorOver: BRUSH CREEK
1 MI E XENIA, Clay, IL
Built 1970 Load: 18.8 t ADT: 100
TR-47
PoorOver: HUTSON CREEK
2 MI W HUTSONVILLE, Crawford, IL
Built 1962 Load: 18.8 t ADT: 50
TR-133
PoorOver: SECOND CREEK
1.5 MI W DEXTER, Effingham, IL
Built 1909 Load: 18.8 t ADT: 50
CH 38
PoorOver: SHAW CREEK
S1/2-13-T6NR1E, Fulton, IL
Built 1942 Load: 18.8 t ADT: 75
FAS 888
PoorOver: S FORK CYPRESS CREEK
3 MI N OF ILL 13, Gallatin, IL
Built 1959 Load: 18.8 t ADT: 1,100
TR 298
PoorOver: EDWARDS RIVER
7.5 MI SE CAMBRIDGE, Henry, IL
Built 1964 Load: 18.8 t ADT: 25
TR-37
PoorOver: BIRCH CREEK
2.5 MI WSW BIRDS, Lawrence, IL
Built 1974 Load: 18.8 t ADT: 75
TR 352
PoorOver: CREEK
5.0 MI W VIRDEN, Macoupin, IL
Built 1991 Load: 18.8 t ADT: 50
PERKINS RD
PoorOver: FRANKLINVILLE CR
0.05 MI E FRANLINVIL, McHenry, IL
Built 1980 Load: 18.8 t ADT: 725
IL 121 (FAP 320)
PoorOver: WEST OKAW RIVER
SE OF BETHANY, Moultrie, IL
Built 1966 Load: 18.8 t ADT: 4,700
TR 126
PoorOver: LAKEFORK DRAINAGE
3.0 MI SE BEMENT, Piatt, IL
Built 1967 Load: 18.8 t ADT: 25
FAS 1622A (CH 28)
PoorOver: HORSE CREEK
1.0 S PAWNEE, Sangamon, IL
Built 1957 Load: 18.8 t ADT: 325
FAS577
PoorOver: LOST CREEK
3 MI E BEARDSTOWN, Cass, IL
Built 1936 Load: 19.1 t ADT: 650
CH 8
PoorOver: LONE TREE CREEK
.3 MI E OF FOOSLAND, Champaign, IL
Built 1984 Load: 19.1 t ADT: 225
MUN 5671
PoorOver: PAPER MILL BRANCH
2 MI N TAYLORVILLE, Christian, IL
Built 1919 Load: 19.1 t ADT: 300
FAS 1455-CH 34
PoorOver: BARKER CREEK
SE-28-T6NR1E, Fulton, IL
Built 1946 Load: 19.1 t ADT: 75
TR 104
PoorOver: PANTHER CREEK
3.0 W STILLWELL, Hancock, IL
Built 1968 Load: 19.1 t ADT: 50
MS-6300 (E 450th S
PoorOver: Mud Creek
1 MI S. OF US 6, Henry, IL
Built 1994 Load: 19.1 t ADT: 50
HIGHLAND AVE
PoorOver: PINGREE CREEK
0.5MI E PINGREE, Kane, IL
Built 1993 Load: 19.1 t ADT: 1,400
ILL.17
PoorOver: HORSE CR.
0.7 M E UNION HILL, Kankakee, IL
Built 1958 Load: 19.1 t ADT: 2,950
TR 29
PoorOver: TRIB E FORK MAZON R
3270 E, 3000 N, Livingston, IL
Built 1965 Load: 19.1 t ADT: 25
CH 49(WALMSLEY RD)
PoorOver: SAND CREEK
2.7 MI W MT ZION, Macon, IL
Built 1909 Load: 19.1 t ADT: 400
BUNKER HILL ROAD
PoorOver: RUSH CREEK
0.8 MI W OF IL 23, McHenry, IL
Built 1962 Load: 19.1 t ADT: 100
KUNDE RD
PoorOver: KISHWAUKEE RIVER
0.5 MI W OF FRANKLIN, McHenry, IL
Built 1985 Load: 19.1 t ADT: 75
MILLEGEVILLE RD
PoorOver: BUFFALO CREEK
2.5 MI SW POLO, Ogle, IL
Built 1939 Load: 19.1 t ADT: 900
127TH AVE (CH 55)
PoorOver: MILL CREEK
4 MI. SE. OF MILAN, Rock Island, IL
Built 1993 Load: 19.1 t ADT: 600
TR 5
PoorOver: Trib Williams Creek
0.25 mi E TR 462, Adams, IL
Built 1965 Load: 19.4 t ADT: 50
FAS-2077 E Brkvl R
PoorOver: Otter Creek
3.5 MI SE LANARK, Carroll, IL
Built 1970 Load: 19.4 t ADT: 150
TR 83
PoorOver: SPOON RIVER
2.5 MI S GIFFORD, Champaign, IL
Built 1900 Load: 19.4 t ADT: 35
TR 109 A
PoorOver: STREAM
2.5 MI N ROYAL, Champaign, IL
Built 1900 Load: 19.4 t ADT: 100
TR 68
PoorOver: MILLER BRANCH
2 MI ENE MORRISONVLE, Christian, IL
Built 1921 Load: 19.4 t ADT: 50
TR 90
PoorOver: GEORGE BRANCH
2MI N EDINBURG, Christian, IL
Built 1915 Load: 19.4 t ADT: 50
TR 288
PoorOver: CORBETT BRANCH
1.5MI NE PANA, Christian, IL
Built 1940 Load: 19.4 t ADT: 100
JEFFERSON ST
PoorOver: STOCKWELL BRANCH
S EDGE MARTINSVILLE, Clark, IL
Built 1909 Load: 19.4 t ADT: 425
FAS-798
PoorOver: LITTLE MUDDY
BIBLE GROVE, Clay, IL
Built 1970 Load: 19.4 t ADT: 475
TR 250 A
PoorOver: POLECAT CREEK
3.8 MI SW ASHMORE, Coles, IL
Built 1935 Load: 19.4 t ADT: 100
WASHINGTON BLVD
PoorOver: ADDISON CR
0.7 M E US 45 P20, Cook, IL
Built 1931 Load: 19.4 t ADT: 8,750
WINNETKA RD
PoorOver: N BR CHICAGO RIVER
0.75 M E LEE RD P14, Cook, IL
Built 1946 Load: 19.4 t ADT: 6,750
31ST AVE
PoorOver: ADDISON CR
0.6 M E US 45, Cook, IL
Built 1928 Load: 19.4 t ADT: 350
TR-313
PoorOver: CREEK
2 MI SW HARDINVILLE, Crawford, IL
Built 1909 Load: 19.4 t ADT: 50
FAU-8322
PoorOver: CREEK
ROBINSON, Crawford, IL
Built 1909 Load: 19.4 t ADT: 650
AIRPORT RD
PoorOver: UNION DITCH #1
1985N 1565E, DeKalb, IL
Built 1947 Load: 19.4 t ADT: 900
CRESCENT BOULEVARD
PoorOver: E BR DU PAGE RIVER
0.1 M W IL 53, DuPage, IL
Built 1984 Load: 19.4 t ADT: 2,200
WESTERN AVENUE
PoorOver: SAWMILL CREEK
.12 MI S I-55 FRONTA, DuPage, IL
Built 1949 Load: 19.4 t ADT: 75
Showing 25,851-25,900 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 |