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
IL 103
PoorOver: TOWN BRANCH
1.3M E US 24, Schuyler, IL
Built 1929 Load: 32.7 t ADT: 1,250
NB ILL 116
PoorOver: SPRING CREEK
NEAR JCT ILL 116 26, Tazewell, IL
Built 1928 Load: 32.7 t ADT: 17,200
TR-254
PoorOver: RANDOLPH DRAIN DITCH
1 MI NE CENTERVILLE, White, IL
Built 1981 Load: 32.7 t ADT: 25
100TH ST
PoorOver: CALUMET RIVER
3300 E 100TH STREET, Cook, IL
Built 1927 Load: 33.0 t ADT: 3,100
IL 64 FAP 17
PoorOver: DRAINAGE DITCH
2.3 MI W SYCAMORE, DeKalb, IL
Built 1937 Load: 33.0 t ADT: 4,500
WATERMAN ROAD
PoorOver: BR OF SOMONAUK CREEK
1015N 900E, DeKalb, IL
Built 1985 Load: 33.0 t ADT: 425
GALE RD - TR 330
PoorOver: BIG CREEK
CTR-35-T6NR3E, Fulton, IL
Built 1971 Load: 33.0 t ADT: 50
TR 278
PoorOver: FLOUR CREEK
3.0 MI W AUGUSTA, Hancock, IL
Built 1963 Load: 33.0 t ADT: 50
TR 94A
PoorOver: TRIB. TO SPRING CR
2 MI E. 45&24-.25 N, Iroquois, IL
Built 1928 Load: 33.0 t ADT: 25
CH 8 STEWARD RD
PoorOver: DRY RUN CREEK
4.5 MI S STEWARD, Lee, IL
Built 1959 Load: 33.0 t ADT: 125
TR 268
PoorOver: GOOSEBERRY CREEK
3045 N, 3200 E, Livingston, IL
Built 1978 Load: 33.0 t ADT: 100
SOUTH BEASON RD
PoorOver: DEER CK BR
.25 MI E LINCOLN, Logan, IL
Built 1965 Load: 33.0 t ADT: 800
FAI 270 WB
PoorOver: COUNTY DITCH
1.03mi W. of IL 157, Madison, IL
Built 1963 Load: 33.0 t ADT: 24,900
W. KOELLER ROAD
PoorOver: EAST PLUM RIVER
4 MI. SW. PEARL CITY, Stephenson, IL
Built 1992 Load: 33.0 t ADT: 50
SB I-155
PoorOver: MACKINAW RIVER
1mi N JCT I-155 /122, Tazewell, IL
Built 1970 Load: 33.0 t ADT: 6,900
COVELL RD
PoorOver: JOHNSON CREEK
3 MI NE OF FULTON, Whiteside, IL
Built 1986 Load: 33.0 t ADT: 50
TR 155
PoorOver: STREAM
2.5 MI S ROYAL, Champaign, IL
Built 1982 Load: 33.4 t ADT: 50
FAS 517(CH 11)
PoorOver: DITCH
W OF THOMASBORO, Champaign, IL
Built 2002 Load: 33.4 t ADT: 800
IL 1 (HALSTED ST
PoorOver: LITTLE CAL RIVER
0.2 M S 127TH ST, Cook, IL
Built 1931 Load: 33.4 t ADT: 13,700
HINTZ RD.
PoorOver: ECHO LAKE
0.05M.W.WHEELING RD., Cook, IL
Built 1987 Load: 33.4 t ADT: 12,400
FULLERTON AVE
PoorOver: N BR CHICAGO RIVER
2400 N & 1900 W, Cook, IL
Built 1896 Load: 33.4 t ADT: 17,600
FAP 323(US 36)
PoorOver: KASKASKIA RIVER
W OF FICKLIN, Douglas, IL
Built 1927 Load: 33.4 t ADT: 3,550
TR 155/GOODFARM RD
PoorOver: E FORK MAZON RIVER
1 S SOUTH WILMINGTON, Grundy, IL
Built 1999 Load: 33.4 t ADT: 50
MARKET ST-IL 120RM
PoorOver: UNUSED LAND
200 FT E SHERIDAN RD, Lake, IL
Built 1966 Load: 33.4 t ADT: 450
TR 257
PoorOver: WABASH RIVER
ST. FRANCISVILLE, Lawrence, IL
Built 1906 Load: 33.4 t ADT: 500
TIMBER CREEK RD
PoorOver: SUGAR CREEK
0.1 MI W SUGAR GROVE, Lee, IL
Built 1969 Load: 33.4 t ADT: 125
TR 251(HOPEWELL RD
PoorOver: FINLEY CREEK
2.3 MI S MT ZION, Macon, IL
Built 1979 Load: 33.4 t ADT: 50
CH61/AIRPORT ROAD
PoorOver: PIASA CREEK
1.1MI S JERSEY CO LN, Madison, IL
Built 1958 Load: 33.4 t ADT: 650
CH 31 ELLIS RD
PoorOver: BUCKEYE BR
3.8MI E ST JACOB, Madison, IL
Built 1972 Load: 33.4 t ADT: 1,200
CH-38
PoorOver: NORTH FORK CREEK
5 MI E VERNON, Marion, IL
Built 1909 Load: 33.4 t ADT: 75
GALL RD/ FAU 9345
PoorOver: CARR CREEK
COLUMBIA, Monroe, IL
Built 1978 Load: 33.4 t ADT: 725
WB I-474
PoorOver: BNSF RR - KICKAPOO CR
S1/2 SEC 26 KICKAPOO, Peoria, IL
Built 1978 Load: 33.4 t ADT: 13,000
TR 245
PoorOver: BLUE CR-LAKE PITTSFD
3.0 MI NE PITTSFIELD, Pike, IL
Built 1961 Load: 33.4 t ADT: 150
I-55/70 & US 40 EB
PoorOver: DRAINAGE CANAL
1/2 Mi E of E St Lou, St. Clair, IL
Built 1960 Load: 33.4 t ADT: 33,650
ILL 177
PoorOver: Silver Cr Overflow E
2.3mi W IL 4, St. Clair, IL
Built 1961 Load: 33.4 t ADT: 7,000
IL 111
PoorOver: A&SRR
0.14mi S of I-64, St. Clair, IL
Built 1973 Load: 33.4 t ADT: 13,900
MERIDIAN RD
PoorOver: CN RR
0.5 MI S CUNNINGHAM, Winnebago, IL
Built 1954 Load: 33.4 t ADT: 2,450
CH 14
PoorOver: CEDAR CREEK
3.4 MI NE LAPRAIRIE, Adams, IL
Built 1921 Load: 33.7 t ADT: 250
I-290 IKE(CONGRESS
PoorOver: BETWEEN RIV & PO
0.5 M E I-90&94, Cook, IL
Built 1954 Load: 33.7 t ADT: 80,900
HALSTED ST
PoorOver: S BR CHICAGO RIVER
2404 S,800 W, Cook, IL
Built 1934 Load: 33.7 t ADT: 6,050
ILL 154
PoorOver: REND LAKE
3.3 MI E SESSER, Franklin, IL
Built 1966 Load: 33.7 t ADT: 2,650
TR 361
PoorOver: PANTHER CREEK
3.0 MI NE BOWEN, Hancock, IL
Built 1982 Load: 33.7 t ADT: 25
FAS-188 (CH-15)
PoorOver: Five Mile Branch
1.0M S of US-30, Lee, IL
Built 1962 Load: 33.7 t ADT: 450
IL 105(FAP 741)
PoorOver: LONG CREEK
4 MI E OF DECATUR, Macon, IL
Built 1961 Load: 33.7 t ADT: 2,100
US 150
PoorOver: UPRR 175626N-MP73.04
1.3MI E. IL6 & US150, Peoria, IL
Built 1988 Load: 33.7 t ADT: 18,700
TR 4
PoorOver: STREAM
5.8 MI N CISCO, Piatt, IL
Built 1978 Load: 33.7 t ADT: 50
ILL 169
PoorOver: STREAM
0.4 MI W KARNAK, Pulaski, IL
Built 1933 Load: 33.7 t ADT: 1,650
ILL 177
PoorOver: Silver Cr Overflow W
2.3mi W IL 4, St. Clair, IL
Built 1961 Load: 33.7 t ADT: 7,000
TR-173 (Proehl Roa
PoorOver: Stream
CTR-11-T23NR6W, Tazewell, IL
Built 1977 Load: 33.7 t ADT: 100
IL 61
PoorOver: BIG NECK CREEK
.1M W IL 94, Adams, IL
Built 1925 Load: 34.0 t ADT: 850
Showing 26,651-26,700 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 |