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 9
PoorOver: DILLON CREEK
1 MI W OF TREMONT, Tazewell, IL
Built 1962 Load: 28.8 t ADT: 5,200
TAZEWELL RD - TR 3
PoorOver: LITTLE MACKINAW RIVE
SE-4-T23NR2W, Tazewell, IL
Built 1946 Load: 28.8 t ADT: 10
CHRISTMAS TREE-TR1
PoorOver: STREAM
SW-2-T23NR5W, Tazewell, IL
Built 1978 Load: 28.8 t ADT: 125
SPRING VALLEY RD
PoorOver: LITTLE ROCK CREEK
6 MI NORTH MORRISON, Whiteside, IL
Built 1938 Load: 28.8 t ADT: 100
CHASE ROAD
PoorOver: CATTAIL CREEK
1 MI SE FULTON, Whiteside, IL
Built 1979 Load: 28.8 t ADT: 1,200
SAUNDERS RD
PoorOver: UNNAMED CREEK
3.5 MI E OF PECATONI, Winnebago, IL
Built 1957 Load: 28.8 t ADT: 800
TR 77
PoorOver: DONICA CREEK
6 MI SE OF OAKLAND, Coles, IL
Built 2000 Load: 29.2 t ADT: 25
TOUHY AVE
PoorOver: N BR CHICAGO RIVER
0.6 M E IL 43, Cook, IL
Built 1925 Load: 29.2 t ADT: 24,400
SB 41 TO RANDOLPH
PoorOver: LAND
500E & 150N., Cook, IL
Built 1986 Load: 29.2 t ADT: 1,200
TR-310
PoorOver: CREEK
3.5 MI SE PALESTINE, Crawford, IL
Built 1909 Load: 29.2 t ADT: 75
MS-1090 (Webster S
PoorOver: Ten Mile Creek
CLINTON-WEBSTER ST., De Witt, IL
Built 1970 Load: 29.2 t ADT: 150
TR-357
PoorOver: TRIB HICKORY CREEK
3 MI SE ST ELMO, Fayette, IL
Built 1925 Load: 29.2 t ADT: 50
TR 120 OLD MAZON R
PoorOver: JOHNNY RUN CREEK
.5 MI S REED RD, Grundy, IL
Built 1982 Load: 29.2 t ADT: 50
CO. HWY. 12
PoorOver: PETIT CREEK
7 MI S OF WARSAW, Hancock, IL
Built 1979 Load: 29.2 t ADT: 350
TR 126
PoorOver: LITTLE MUD CR
3 MI N CISSNA PK, Iroquois, IL
Built 1970 Load: 29.2 t ADT: 50
FAP-849 (ILL-142)
PoorOver: DODDS CREEK
1.5 MI NW OPDYKE, Jefferson, IL
Built 1928 Load: 29.2 t ADT: 3,650
NEW YORK STREET
PoorOver: FOX RIVER
STOLP ISLAND, Kane, IL
Built 1931 Load: 29.2 t ADT: 9,850
CH 12
PoorOver: HORSE CR
3 MI N HERSCHER, Kankakee, IL
Built 1979 Load: 29.2 t ADT: 1,850
TR 322
PoorOver: COUEL CREEK
E 19TH N 2275, LaSalle, IL
Built 1973 Load: 29.2 t ADT: 50
CH 30(FAU 7403)
PoorOver: SAND CREEK TRIB
1.5 MI E OF ELWIN, Macon, IL
Built 1986 Load: 29.2 t ADT: 4,550
TR 130
PoorOver: LICK CRK
3.5 MI SE HETTICK, Macoupin, IL
Built 1960 Load: 29.2 t ADT: 50
ROOT ROAD
PoorOver: RUSH CREEK
0.1 MI N OF CH 30, McHenry, IL
Built 1900 Load: 29.2 t ADT: 100
FAU 8173 College A
PoorOver: MAUVAISE TERRE CR
.25 MI E JOHNSON, Morgan, IL
Built 1975 Load: 29.2 t ADT: 1,900
TR 62(N. MAIN ST)
PoorOver: LONG GROVE CREEK
.5 MI N OF MOWEAQUA, Shelby, IL
Built 1953 Load: 29.2 t ADT: 1,350
WINKEL RD - CH 10
PoorOver: MAIN DRAINAGE DITCH
SE COR-15-T22NR5W, Tazewell, IL
Built 1955 Load: 29.2 t ADT: 100
PALMER ROAD
PoorOver: SPRING CREEK
0.5 MI NE ALBANY, Whiteside, IL
Built 1978 Load: 29.2 t ADT: 100
FAS 357 CH2
PoorOver: CROW CREEK
3.0 MI W MINONK, Woodford, IL
Built 1986 Load: 29.2 t ADT: 625
STATE ST
PoorOver: MAIN BR CHICAGO RIV
309 N STATE, Cook, IL
Built 1949 Load: 29.5 t ADT: 6,900
FAI 57 NBL
PoorOver: BIG FOUR DITCH
2.37 MI S OF ILL 9, Ford, IL
Built 1968 Load: 29.5 t ADT: 10,550
OLD MAZON RD TR 12
PoorOver: W FK MAZON RIVER
.4 MI S SUCKER ROAD, Grundy, IL
Built 1983 Load: 29.5 t ADT: 275
TR 115
PoorOver: MURRAY SLUICE
3/4M S,3/4M E MAZON, Grundy, IL
Built 1996 Load: 29.5 t ADT: 275
US 52
PoorOver: PIKE CREEK
0.24 MI E OF ILL 1, Iroquois, IL
Built 1928 Load: 29.5 t ADT: 1,700
CH-5
PoorOver: BIRCH CREEK
3.5 MI NW PINKSTAFF, Lawrence, IL
Built 1979 Load: 29.5 t ADT: 100
CH11 PUMP FACTORY
PoorOver: THREE MILE BRANCH
2.2 MI S OF DIXON, Lee, IL
Built 1960 Load: 29.5 t ADT: 250
OLD RT 66 NB/FAS 2
PoorOver: WOLF CREEK
12.91 M S OF ILL 17, Livingston, IL
Built 1955 Load: 29.5 t ADT: 2,550
TR 199A
PoorOver: LAKE FORK
4.5 E 1 MI S ELKHART, Logan, IL
Built 1978 Load: 29.5 t ADT: 225
TR 212
PoorOver: LAKE FORK CK TRIB
1 E 1.5 MI S LAKE FK, Logan, IL
Built 1961 Load: 29.5 t ADT: 35
CH 21(FAS 546)
PoorOver: WILLOW BRANCH
3.9 MI SW WARRENSBRG, Macon, IL
Built 1926 Load: 29.5 t ADT: 250
TR 292(FRIEND'S CR
PoorOver: FRIENDS CREEK DITCH
IN FRIENDS CREEK, Macon, IL
Built 1980 Load: 29.5 t ADT: 200
TR 402
PoorOver: SUGAR CR
.5 S. 3.5 W. VIRDEN, Macoupin, IL
Built 1900 Load: 29.5 t ADT: 100
Road District 1
PoorOver: Cooling Canal
3.5 MI N CORDOVA, Rock Island, IL
Built 1973 Load: 29.5 t ADT: 1,250
FAS 1632(CH 38)
PoorOver: W BR LITTLE WABASH R
3.2 MI SE OF WINDSOR, Shelby, IL
Built 1916 Load: 29.5 t ADT: 375
I-55/64; US 40 PSC
PoorOver: TRRA
P6(PSB) to Pier BC1, St. Clair, IL
Built 1966 Load: 29.5 t ADT: 117,700
HAURY ROAD
PoorOver: OGLES CREEK
0.5MI W WEIL RD, St. Clair, IL
Built 1995 Load: 29.5 t ADT: 200
TR-149
PoorOver: CROOKED CREEK
2 MI SW CROSSVILLE, White, IL
Built 1909 Load: 29.5 t ADT: 25
COLETA RD
PoorOver: COUNTY DITCH NO. 1
2 MI. N. TAMPICO, Whiteside, IL
Built 1978 Load: 29.5 t ADT: 50
TR 2
PoorOver: CLEAR CREEK SPUR
6 MI W PALMER, Christian, IL
Built 1986 Load: 29.8 t ADT: 50
ROHRSSEN RD
PoorOver: POPLAR CREEK
0.3 M N ILL 19 P7, Cook, IL
Built 1958 Load: 29.8 t ADT: 3,200
GOBLE ROAD
PoorOver: BR OF INDIAN CREEK
455N 100E, DeKalb, IL
Built 1985 Load: 29.8 t ADT: 25
TR 155 GOODFARM RD
PoorOver: TRIB E FK MAZON RIV
.42 MI E LINCOLN RD, Grundy, IL
Built 1987 Load: 29.8 t ADT: 50
Showing 26,401-26,450 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 |