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
FAS 188A/CH 8
FairOver: BRANCH OF CROW CREEK
4.5 MI SE BRADFORD, Bureau, IL
Built 1934 Load: 32.1 t ADT: 425
TR-38 (W Wacker Rd
FairOver: PLUM RIVER
.25 MI E SAVANNA, Carroll, IL
Built 1977 Load: 32.1 t ADT: 775
FAS577
FairOver: LOST CREEK BRANCH
3.5 MI E BEARDSTOWN, Cass, IL
Built 1936 Load: 32.1 t ADT: 650
I-57
FairOver: STREAM
2 MI N MARKET ST, Champaign, IL
Built 1969 Load: 32.1 t ADT: 22,500
FAI 64 EB
FairOver: SUGAR CREEK
3.9 MI E COUNTY LINE, Clinton, IL
Built 1970 Load: 32.1 t ADT: 15,500
US 50
FairOver: BEAVER CREEK
4 MI W OF CARLYLE, Clinton, IL
Built 1974 Load: 32.1 t ADT: 5,150
US 45 IL 121(FA 82
FairOver: KICKAPOO CREEK
S EDGE MATTOON, Coles, IL
Built 1940 Load: 32.1 t ADT: 8,400
FAS 668(CH 2)
FairOver: DRY BRANCH
1 MI N OF RARDIN, Coles, IL
Built 1963 Load: 32.1 t ADT: 250
ROOSEVELT RD
FairOver: DES PLAINES RIVER
0.3M E OF 1ST AVE, Cook, IL
Built 1928 Load: 32.1 t ADT: 25,200
IL 62 ALGONQUIN R
FairOver: SPRING CREEK
1.4 M W IL 59, Cook, IL
Built 1929 Load: 32.1 t ADT: 25,100
LAKE COOK RD
FairOver: RAVINE
1.5 M E US 41, Cook, IL
Built 1926 Load: 32.1 t ADT: 3,200
31ST ST
FairOver: DES PLAINES RIVER
2.4 M E US 45, Cook, IL
Built 1928 Load: 32.1 t ADT: 11,300
PLUM GROVE RD
FairOver: SALT CREEK
0.4 M N ILL 62 P18, Cook, IL
Built 1957 Load: 32.1 t ADT: 2,300
LAKE-COOK ROAD
FairOver: DES PLAINES RIVER
0.2 M E OF US-45, Cook, IL
Built 1994 Load: 32.1 t ADT: 34,300
GOBLE RD
FairOver: BR PAW PAW RUN
230N 100E, DeKalb, IL
Built 1955 Load: 32.1 t ADT: 25
HILLCREST DRIVE
FairOver: S. Br of Kishwaukee Rive
0.2mi. E. of N. 1st., DeKalb, IL
Built 1964 Load: 32.1 t ADT: 9,200
FAP-774 (ILL-33)
FairOver: STREAM
1 MI E BEECHER CITY, Effingham, IL
Built 1939 Load: 32.1 t ADT: 3,250
TR-300
FairOver: RAMSEY CREEK
7 MI SW DIETERICH, Effingham, IL
Built 1909 Load: 32.1 t ADT: 35
FAP-750 (ILL-185)
FairOver: LONE GROVE BRANCH
1.0 MI E ST PETER, Fayette, IL
Built 1932 Load: 32.1 t ADT: 1,200
TR 99 DRUMMER
FairOver: DRUMMER CREEK
390E,300N, Ford, IL
Built 1971 Load: 32.1 t ADT: 125
TR 37 BRENTON
FairOver: STREAM
1480E 2300N, Ford, IL
Built 1973 Load: 32.1 t ADT: 25
ILL 78 & 97
FairOver: SPOON RIVER
1 MI N JCT 136, Fulton, IL
Built 1989 Load: 32.1 t ADT: 3,000
PEANUT RIDGERD-TR3
FairOver: BIG SISTER CREEK
N1/2-17-T5NR4E, Fulton, IL
Built 1983 Load: 32.1 t ADT: 25
GOODFARM RD
FairOver: MURRAY SLUICE
0.05 MI E BUFFALO RD, Grundy, IL
Built 1979 Load: 32.1 t ADT: 75
CH 29
FairOver: LANGAN CR
1.5 MI W 1.5 N CLIFT, Iroquois, IL
Built 1975 Load: 32.1 t ADT: 200
AIRPORT RD FAU 972
FairOver: LITTLE CRAB ORCHARD
E LINE SEC 4-9-1, Jackson, IL
Built 1983 Load: 32.1 t ADT: 2,100
FABYAN PARKWAY
FairOver: FOX RIVER
FABYAN PK W OF IL 25, Kane, IL
Built 1974 Load: 32.1 t ADT: 28,200
DUGAN ROAD
FairOver: WELCH CREEK
DUGAN .6 M S OF US30, Kane, IL
Built 1974 Load: 32.1 t ADT: 2,650
TR 13
FairOver: TRIM CREEK
1MI N GRANT PARK, Kankakee, IL
Built 1970 Load: 32.1 t ADT: 775
TR 119
FairOver: CRANE CR
2.5 MI EAST REDDICK, Kankakee, IL
Built 1975 Load: 32.1 t ADT: 100
TR 36
FairOver: S HENDERSON CREEK
SW-21-T12NR1E, Knox, IL
Built 1971 Load: 32.1 t ADT: 75
IL 131 (GREEN BAY)
FairOver: RR - EJ&E
1.1 M S OF IL 137, Lake, IL
Built 1954 Load: 32.1 t ADT: 10,300
TR 158
FairOver: VERMILION CREEK
E 9TH N 4275, LaSalle, IL
Built 1973 Load: 32.1 t ADT: 50
TR 29
FairOver: W FORK MAZON R
2295 E, 3000 N, Livingston, IL
Built 1940 Load: 32.1 t ADT: 75
MT PULASKI-ELKHART
FairOver: LAKE FORK OVERFLOW
3.5 MI E ELKHART, Logan, IL
Built 1934 Load: 32.1 t ADT: 800
IL 121(FAP 320)
FairOver: CREEK
.5 MI W OF HEMAN, Macon, IL
Built 1931 Load: 32.1 t ADT: 3,750
TR-218A
FairOver: WILLS CREEK
4 MI W ALMA, Marion, IL
Built 2010 Load: 32.1 t ADT: 25
FAS-1479 (CH-34)
FairOver: Branch Timber Creek
1 MILE E SHIRLEY, McLean, IL
Built 1962 Load: 32.1 t ADT: 475
TR 1
FairOver: BRANCH ROOKS CREEK
1.0 MI NW CHENOA, McLean, IL
Built 1963 Load: 32.1 t ADT: 75
TR 255A
FairOver: BR MACKINAW RIVER
4.0 MI S COLFAX, McLean, IL
Built 1960 Load: 32.1 t ADT: 75
TR 29
FairOver: BR OF ROOKS CREEK
3.0 MI SW WESTON, McLean, IL
Built 1963 Load: 32.1 t ADT: 50
TR 226
FairOver: TOMS CREEK
SE-35-T13NR2W, Mercer, IL
Built 1979 Load: 32.1 t ADT: 50
FAI 255 SB/WB
FairOver: UPRR
2 mi E of JB Bridge, Monroe, IL
Built 1981 Load: 32.1 t ADT: 12,500
I-39 & US 51 SB
FairOver: U.P. RR
0.65 MI S OF ILL 38, Ogle, IL
Built 1981 Load: 32.1 t ADT: 14,550
I-39 & US 51 NB
FairOver: U.P. RR
0.65 MI S OF ILL 38, Ogle, IL
Built 1981 Load: 32.1 t ADT: 14,550
RIVER RD
FairOver: SPRING CREEK
4.0 MI N OREGON, Ogle, IL
Built 1960 Load: 32.1 t ADT: 2,000
WHITE EAGLE RD TR6
FairOver: LEAF RIVER
1.3 MI E OF ADELINE, Ogle, IL
Built 1982 Load: 32.1 t ADT: 50
TR 18
FairOver: WOLF RUN
2.0 MI SE CISCO, Piatt, IL
Built 1964 Load: 32.1 t ADT: 175
IL 92 SB (CENT FRW
FairOver: MILL CREEK
.4 MI N ANDALUSIA RD, Rock Island, IL
Built 1960 Load: 32.1 t ADT: 14,400
IL 92 NB (CENT FRW
FairOver: MILL CREEK
.4 MI N ANDALUSIA RD, Rock Island, IL
Built 1960 Load: 32.1 t ADT: 14,400
Showing 7,051-7,100 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.