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 491
Structurally DeficientOver: DRAINAGE DITCH
N 18TH E 560, LaSalle, IL
Built 1967 Load: 18.1 t ADT: 150
TR 343
Structurally DeficientOver: SIXMILE CR TRIBUTARY
0.75 MI SE SUMMER HI, Pike, IL
Built 1959 Load: 18.1 t ADT: 50
IL 100/106
Structurally DeficientOver: ILLINOIS RIVER
E EDGE FLORENCE, Scott, IL
Built 1929 Load: 18.1 t ADT: 1,850
OLD IL 26
Structurally DeficientOver: RICHLAND CK&C WIS RR
1.2 MI N ORANGEVILLE, Stephenson, IL
Built 1929 Load: 18.1 t ADT: 475
FAS-801
Structurally DeficientOver: BRUSHY FORK SYSTEM
EAST EDGE BIRDS, Lawrence, IL
Built 1909 Load: 18.5 t ADT: 525
TR 312
Structurally DeficientOver: Masters Fork Branch
4 MI W OF LA MOILLE, Bureau, IL
Built 1960 Load: 18.8 t ADT: 25
VIOLET LN
Structurally DeficientOver: BUTTERFIELD CR
0.25 M N US 30 P21, Cook, IL
Built 1964 Load: 18.8 t ADT: 225
CO HWY 17
Structurally DeficientOver: LA HARPE CREEK
3 MI N OF FTN. GREEN, Hancock, IL
Built 1949 Load: 18.8 t ADT: 225
CH 26(CNTRY CLUB R
Structurally DeficientOver: LAKE DECATUR
0.5 MI N OF FAP 320, Macon, IL
Built 1939 Load: 18.8 t ADT: 775
TR 181
Structurally DeficientOver: STONY CREEK
5.0 NW RUSHVILLE, Schuyler, IL
Built 1971 Load: 18.8 t ADT: 150
TR 83
Structurally DeficientOver: BROWN BRANCH
4.0 MI E STONINGTON, Christian, IL
Built 1957 Load: 19.1 t ADT: 100
TR 109
Structurally DeficientOver: TEN MILE CREEK
3.0 MI N CLINTON, De Witt, IL
Built 1966 Load: 19.1 t ADT: 50
TR 84
Structurally DeficientOver: LITTLE BEAR CREEK
3.0 MI SW BASCO, Hancock, IL
Built 1972 Load: 19.1 t ADT: 175
CO HWY 1
Structurally DeficientOver: LITTLE BEAUCOUP CRK
4 MI N OF ILL 154, Perry, IL
Built 1959 Load: 19.1 t ADT: 650
WOODCREEK DRIVE
Structurally DeficientOver: LILY CACHE LN TRIB
.17M S LILY CACHE LN, Will, IL
Built 1981 Load: 19.1 t ADT: 2,200
STONE QUARRY RD
Structurally DeficientOver: HACKEY CREEK
0.5 S BELVIDERE, Boone, IL
Built 1945 Load: 19.4 t ADT: 1,550
FAS 582
Structurally DeficientOver: RUSSET BRANCH
W VERSAILLES CTY LMT, Brown, IL
Built 1957 Load: 19.4 t ADT: 250
TR 143
Structurally DeficientOver: E.BRANCH BUREAU CREE
0.7 MI. N.W. ZEARING, Bureau, IL
Built 1969 Load: 19.4 t ADT: 25
TR 384
Structurally DeficientOver: BRUSH CREEK
1.5 MI S ARLINGTON, Bureau, IL
Built 1975 Load: 19.4 t ADT: 25
MAPLE AV/FAS245
Structurally DeficientOver: HICKORY CREEK
E EDGE OF MANLIUS, Bureau, IL
Built 1930 Load: 19.4 t ADT: 475
SANGAMON ST
Structurally DeficientOver: OWL CREEK
VILLAGE OF FISHER, Champaign, IL
Built 1970 Load: 19.4 t ADT: 475
TR-128 (Goldeneye
Structurally DeficientOver: BUCK CREEK
3.5 MI SE OSKALOOSA, Clay, IL
Built 1965 Load: 19.4 t ADT: 25
FORESTWAY DR
Structurally DeficientOver: DITCH
0.13 M N of Willow, Cook, IL
Built 1937 Load: 19.4 t ADT: 2,400
WEDGEWOOD DRIVE
Structurally DeficientOver: ADDISON CREEK
0.5 MI E.OF US 45, Cook, IL
Built 1952 Load: 19.4 t ADT: 425
MONROE ST
Structurally DeficientOver: ADDISON CR
0.72 M E MANHEIM P20, Cook, IL
Built 1928 Load: 19.4 t ADT: 225
PEARL ST
Structurally DeficientOver: SO BR KISHWAUKEE RV
3215N 540E, DeKalb, IL
Built 1949 Load: 19.4 t ADT: 1,000
TR-142
Structurally DeficientOver: WOLF CREEK
2 MI W ROSE HILL, Jasper, IL
Built 1909 Load: 19.4 t ADT: 25
TOWNSHIP RD NO 252
Structurally DeficientOver: S FORK APPLE RIV
5 MI NO STOCKTON, Jo Daviess, IL
Built 1901 Load: 19.4 t ADT: 25
CEDAR ST
Structurally DeficientOver: CEDAR FORK CREEK
200 N. CEDAR, Knox, IL
Built 1931 Load: 19.4 t ADT: 50
10TH ST
Structurally DeficientOver: FIRST CR
10TH ST W OF 1ST AVE, LaSalle, IL
Built 1947 Load: 19.4 t ADT: 100
FAS-806
Structurally DeficientOver: STREAM
BRIDGEPORT, Lawrence, IL
Built 1922 Load: 19.4 t ADT: 1,700
TR 218
Structurally DeficientOver: LAKE FORK CK FLD PLN
2 E 2.5 MI S LAKE FK, Logan, IL
Built 1968 Load: 19.4 t ADT: 25
TR 148A(SANNER RD)
Structurally DeficientOver: LONG GROVE CREEK
5.4 MI SE OF MACON, Macon, IL
Built 1990 Load: 19.4 t ADT: 25
OLD IL 4
Structurally DeficientOver: HURRICANE CREEK
3M N IL108-CARLINVLE, Macoupin, IL
Built 1921 Load: 19.4 t ADT: 100
TR 189
Structurally DeficientOver: ANDERSON BRANCH
3 W 1 S STAND. CITY, Macoupin, IL
Built 1900 Load: 19.4 t ADT: 100
BROWN ST./ FAU 896
Structurally DeficientOver: ROCKSPRING CREEK
100FT E ROCK SPRINGD, Madison, IL
Built 1955 Load: 19.4 t ADT: 4,050
BARREVILLE RD
Structurally DeficientOver: Sleepy Hollow Creek
0.4 MI N OF AMES RD, McHenry, IL
Built 1957 Load: 19.4 t ADT: 1,350
FRANKLIN ST
Structurally DeficientOver: BR SUGAR CREEK
0.7 MI N 51 & 150, McLean, IL
Built 1940 Load: 19.4 t ADT: 600
CH 14
Structurally DeficientOver: MARROW BONE CREEK
1 MI W OF BETHANY, Moultrie, IL
Built 1962 Load: 19.4 t ADT: 150
TOWN HALL ROAD
Structurally DeficientOver: SILVER CREEK
3.5 M NW OREGON, Ogle, IL
Built 1982 Load: 19.4 t ADT: 75
TR 110
Structurally DeficientOver: GALUM CREEK
1.2 MI S OF ILL 13, Perry, IL
Built 1900 Load: 19.4 t ADT: 25
SBI 36
Structurally DeficientOver: BLUE CREEK
.8MI W DETROIT, Pike, IL
Built 1922 Load: 19.4 t ADT: 25
TR 310
Structurally DeficientOver: BUCK BRANCH
1 MI SW NEBO, Pike, IL
Built 1948 Load: 19.4 t ADT: 50
TR 318
Structurally DeficientOver: BAY CREEK TRIBUTARY
2.0 MI N NEBO, Pike, IL
Built 1940 Load: 19.4 t ADT: 50
LANDAU AV
Structurally DeficientOver: SPRING CREEK
0.25 MI N JACKSON ST, Will, IL
Built 1911 Load: 19.4 t ADT: 575
TR-284
Structurally DeficientOver: CREEK
4 MI SE FLORA, Clay, IL
Built 1966 Load: 19.8 t ADT: 50
CANAL STREET
Structurally DeficientOver: UNION STATION TRACKS
500 W & 300 TO 600 S, Cook, IL
Built 1926 Load: 19.8 t ADT: 10,400
ILL 9
Structurally DeficientOver: SPOON RIVER
1 MI W OF BLYTON, Fulton, IL
Built 1925 Load: 19.8 t ADT: 1,000
CO HWY 28
Structurally DeficientOver: MIDDLE CREEK
1 MI NW OF MIDDLECK., Hancock, IL
Built 1980 Load: 19.8 t ADT: 50
BEACH ROAD
Structurally DeficientOver: BEACH CREEK TRIB
0.7 MI E ASHTON RD, Lee, IL
Built 1978 Load: 19.8 t ADT: 100
Showing 27,301-27,350 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 |