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
BUS I72/IL104/MORT
FairOver: MAUVAISE TERRE CREEK
.7M E IL267-JACKSNVL, Morgan, IL
Built 1957 Load: 35.3 t ADT: 10,400
FAS 659(CH 8)
FairOver: JONATHON CREEK
5.2 MI S IL 133, Moultrie, IL
Built 1982 Load: 35.3 t ADT: 2,000
IL 121(FAP 320)
FairOver: ASA CREEK
E. EDGE SULLIVAN, Moultrie, IL
Built 1986 Load: 35.3 t ADT: 6,500
FAS 659(CH 8)
FairOver: BOLIN BRANCH
3.5 MI E OF SULLIVAN, Moultrie, IL
Built 1988 Load: 35.3 t ADT: 2,000
ILL 72
FairOver: KILBUCK CREEK
1.2 MI E OF ILL 251, Ogle, IL
Built 1989 Load: 35.3 t ADT: 4,500
MT MORRIS ROAD
FairOver: BR OF LEAF RIVER
4.5 M N MT MORRIS, Ogle, IL
Built 1980 Load: 35.3 t ADT: 1,250
ROCKY HOLLOW RD
FairOver: WILLOW CREEK
5.5 MI SE OF OREGON, Ogle, IL
Built 1986 Load: 35.3 t ADT: 100
NORTH HAMPTON ROAD
FairOver: BR OF SENACHWINE CR
NE-12-HALLOCK, Peoria, IL
Built 1972 Load: 35.3 t ADT: 125
MCCLELLAN ROAD
FairOver: W FORK KICKAPOO CR
WLINESW1/4-9-T9NR5E, Peoria, IL
Built 1980 Load: 35.3 t ADT: 250
FALK ROAD - TR 267
FairOver: BR COPPERAS CR
NLINESE1/4 7 T7NR6E, Peoria, IL
Built 1982 Load: 35.3 t ADT: 75
ILL 96
FairOver: 6 MILE BAY DIVERSION
1.3 MI SE OF PT HILL, Pike, IL
Built 1938 Load: 35.3 t ADT: 725
IL 104
FairOver: MIDDLE FK MCKEE CR
.2M E IL 107, Pike, IL
Built 1934 Load: 35.3 t ADT: 725
TR 45
FairOver: BRIAR CREEK
3.5 MI NE PULASKI, Pulaski, IL
Built 1977 Load: 35.3 t ADT: 25
CH-8 (FAS-939)
FairOver: TRIB TO HESS BAYOU
0.24 MI W RTE 37, Pulaski, IL
Built 1982 Load: 35.3 t ADT: 1,400
I-55 W FR (BR CR R
FairOver: BRUSH CREEK
.7M S IL 104 INTCHG, Sangamon, IL
Built 1949 Load: 35.3 t ADT: 150
IL 29
FairOver: BLACK BRANCH
.37M SE MAIN-ROCHSTR, Sangamon, IL
Built 1954 Load: 35.3 t ADT: 11,600
IL 99
FairOver: LITTLE MISSOURI CR.
.25M N BROWN COUNTY, Schuyler, IL
Built 1986 Load: 35.3 t ADT: 500
TR 302
FairOver: RICHIE BR CR
1 MI NW RAY, Schuyler, IL
Built 1981 Load: 35.3 t ADT: 25
TR 385
FairOver: GREEN CREEK
3.5 MI NW SIGEL, Shelby, IL
Built 2012 Load: 35.3 t ADT: 200
OLD US 50
FairOver: ROCK SPRING BROOK
EAST O'FALLON, St. Clair, IL
Built 1952 Load: 35.3 t ADT: 8,600
ILL 26
FairOver: CN RR
0.2 MI N OF US 20 BR, Stephenson, IL
Built 1986 Load: 35.3 t ADT: 12,500
FAP398 - CH 3
FairOver: FARM CREEK
SE-14-T26NR3W, Tazewell, IL
Built 1966 Load: 35.3 t ADT: 5,100
FAU 6998(CH 20)
FairOver: LAKE VERMILION
.2 MI NW DANVILLE, Vermilion, IL
Built 1978 Load: 35.3 t ADT: 3,800
TR 35
FairOver: BR GRAND POINT CR
2MI NW IRVINGTON, Washington, IL
Built 1918 Load: 35.3 t ADT: 50
FAI-64 WB
FairOver: SKILLET FORK
7 MI E ILL-242 INT, Wayne, IL
Built 1974 Load: 35.3 t ADT: 5,500
FAP-328 (US-45 EB)
FairOver: STREAM
FAIRFIELD W.C.L., Wayne, IL
Built 1956 Load: 35.3 t ADT: 3,300
FAP 821 (ILL-15)
FairOver: TRIB MILLER CREEK
.6 MI W OF SIMS, Wayne, IL
Built 1990 Load: 35.3 t ADT: 3,050
FAS-888 (CH-8)
FairOver: LICK CREEK
2 MI NW HERALD, White, IL
Built 1988 Load: 35.3 t ADT: 325
I-88 WB
FairOver: BN RR (ABANDON)
.5 MI S US 30, Whiteside, IL
Built 1972 Load: 35.3 t ADT: 6,600
SPRING VALLEY ROAD
FairOver: OTTER CREEK
6 MI NE OF FULTON, Whiteside, IL
Built 1964 Load: 35.3 t ADT: 100
SPRING VALLEY RD
FairOver: JOHNSON CREEK
2 MI NE FULTON, Whiteside, IL
Built 1982 Load: 35.3 t ADT: 50
US 6
FairOver: SPRING CREEK
0.4 M E OF IL 171, Will, IL
Built 1926 Load: 35.3 t ADT: 11,600
ILL 13 WB
FairOver: CRAB ORCHARD LAKE
1.6 MI E JACKSON CO, Williamson, IL
Built 1939 Load: 35.3 t ADT: 23,500
CH 1
FairOver: LAKE CREEKOVERFLOW
SW CORP LIM J CITY, Williamson, IL
Built 1979 Load: 35.3 t ADT: 600
US 20 E B
FairOver: IL RR
.5 MI W OF ILL 251, Winnebago, IL
Built 1960 Load: 35.3 t ADT: 32,000
AUBURN ST
FairOver: ROCK RIVER
0.4 MI W OF ILL 251, Winnebago, IL
Built 1938 Load: 35.3 t ADT: 22,600
CH 10/FAS 782
FairOver: DIVERSION DITCH
0.25M N KEYSPORT, Bond, IL
Built 1963 Load: 35.6 t ADT: 425
I-180 SB
FairOver: EAST BUREAU CREEK
3.4 MI S JCT FAI 80, Bureau, IL
Built 1968 Load: 35.6 t ADT: 1,300
US 34
FairOver: BN RR
1.1MI NE JCT ILL 26, Bureau, IL
Built 1971 Load: 35.6 t ADT: 1,500
ILL 73
FairOver: STREAM
0.6 MI S STEPH CO, Carroll, IL
Built 1932 Load: 35.6 t ADT: 2,150
US 51/IL 16
FairOver: BECKS CR. TRIB.
.2M W US 51 - E PANA, Christian, IL
Built 1923 Load: 35.6 t ADT: 6,600
CH 1/FAS 645
FairOver: S. FORK SANGAMON R.
11.5MI S TAYLORVLE, Christian, IL
Built 1993 Load: 35.6 t ADT: 1,900
FAP-327 (US-50)
FairOver: CXST RR
3 MI E JCT US-45N, Clay, IL
Built 1969 Load: 35.6 t ADT: 4,600
IL 83 (KINGERY HW
FairOver: S & S AND I&M CANALS
0.4 M N 107TH ST, Cook, IL
Built 1934 Load: 35.6 t ADT: 32,400
IL 72 WB (HIGGINS
FairOver: RR - WI CENTRAL LTD
.65 M NW IL 59, Cook, IL
Built 1938 Load: 35.6 t ADT: 21,900
SHERIDAN RD
FairOver: RAVINE NO 2
1 M S LAKE CO, Cook, IL
Built 1923 Load: 35.6 t ADT: 2,750
Virginia Avenue
FairOver: Stony Creek
500 FT N. SW HWY, Cook, IL
Built 1990 Load: 35.6 t ADT: 3,900
CENTRAL PARK DRIVE
FairOver: GARFIELD PK LAGOON
200 N & 3600 W, Cook, IL
Built 1936 Load: 35.6 t ADT: 8,450
I-90 SKYWAY
FairOver: CITY STORAGE AREA
0.1 M W JEFFERY P7C, Cook, IL
Built 1958 Load: 35.6 t ADT: 28,700
I-90 SKYWAY
FairOver: GROUND NW CAL RV
VIAD, CALUMET RV, Cook, IL
Built 1958 Load: 35.6 t ADT: 28,700
Showing 10,901-10,950 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.