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 661 (CH 20)
FairOver: CRAB APPLE CREEK
3.0 MI N OF MATTOON, Coles, IL
Built 1952 Load: 24.6 t ADT: 900
TR 39 B
FairOver: FLAT BRANCH
.5 MI E HUMBOLDT, Coles, IL
Built 1954 Load: 24.6 t ADT: 150
TR 69
FairOver: FLAT BRANCH
1.0 MI S HUMBOLT, Coles, IL
Built 1961 Load: 24.6 t ADT: 50
CH 17
FairOver: WHETSTONE CREEK
5 MI E CHARLESTON, Coles, IL
Built 1973 Load: 24.6 t ADT: 200
HARBOR DRIVE
FairOver: PARKING GARAGE
200N 450E, Cook, IL
Built 1973 Load: 24.6 t ADT: 2,850
MONROE STREET
FairOver: UNION STATION TRACKS
100S 400W TO 500W, Cook, IL
Built 1924 Load: 24.6 t ADT: 4,650
I-90 SKYWAY
FairOver: GROUND SE 75TH ST
0.08 M SE 75TH P7C, Cook, IL
Built 1958 Load: 24.6 t ADT: 28,700
US 40(FAS 1707)
FairOver: BIG MUDDY CREEK
1.25 MI E WOODBURY, Cumberland, IL
Built 1949 Load: 24.6 t ADT: 2,150
CH 4(FAS 702)
FairOver: RANGE CREEK
3.0 MI SE GREENUP, Cumberland, IL
Built 1941 Load: 24.6 t ADT: 475
CH 17 (FAS 483)
FairOver: KICKAPOO CREEK
.75 MI N WAYNESVILLE, De Witt, IL
Built 1965 Load: 24.6 t ADT: 450
ROLLO RD
FairOver: BR INDIAN CREEK
350N 250E, DeKalb, IL
Built 1949 Load: 24.6 t ADT: 575
TR 338
FairOver: STREAM
1.5 MI S OF KIDLEY, Edgar, IL
Built 1953 Load: 24.6 t ADT: 75
FAS-2715 (CH-12)
FairOver: LIMESTONE CREEK
3 MI W MASON, Effingham, IL
Built 1964 Load: 24.6 t ADT: 425
FAS-1711 (CH-21)
FairOver: LITTLE SALT CREEK
2 MI E POLICE STA, Effingham, IL
Built 1967 Load: 24.6 t ADT: 1,250
CH 42
FairOver: SPRING CREEK
2.2MI S US24, Iroquois, IL
Built 1977 Load: 24.6 t ADT: 75
CH-2
FairOver: N FK EMBARRAS RIVER
2.5 MI NE STE MARIE, Jasper, IL
Built 1963 Load: 24.6 t ADT: 150
FAS-2705
FairOver: SANDY CREEK
1.7 MI SSE LATONA, Jasper, IL
Built 1973 Load: 24.6 t ADT: 200
FAP-726 (ILL-148)
FairOver: BIG MUDDY RIVER
1.5 MI W NASON ROAD, Jefferson, IL
Built 1980 Load: 24.6 t ADT: 3,500
ILL 100 (FAP-304)
FairOver: Trib to Otter Creek
1.7 M S JCT ILL 16, Jersey, IL
Built 1925 Load: 24.6 t ADT: 950
E CENTER ROAD
FairOver: LAWHORN CREEK
2 MI. SW STOCKTON, Jo Daviess, IL
Built 1954 Load: 24.6 t ADT: 275
E SCHAPVILLE RD
FairOver: HELLS BRANCH APPLE R
1.5MI E SCHAPVILLE, Jo Daviess, IL
Built 1954 Load: 24.6 t ADT: 250
TOWNSHIP ROAD NO.
FairOver: SINSINAWA RIVER
3 M E MENOMINEE, Jo Daviess, IL
Built 1964 Load: 24.6 t ADT: 700
JERICHO RD
FairOver: BIG ROCK CREEK
4.0 MI SW SUGARGROVE, Kane, IL
Built 1934 Load: 24.6 t ADT: 2,200
TR-179 (KeDeKa Rd)
FairOver: Blackberry Creek
2 MI N SUGAR GROVE, Kane, IL
Built 1968 Load: 24.6 t ADT: 400
LAKE ROAD
FairOver: RAVINE
LAKE RD S OF SPRUCE, Lake, IL
Built 1979 Load: 24.6 t ADT: 525
FAS268 B/CH15
FairOver: OTTER CREEK
E 22ND,N 1505, LaSalle, IL
Built 1955 Load: 24.6 t ADT: 575
FAP-327 (US-50)
FairOver: MUDDY CREEK
.5 MI E SUMNER RD, Lawrence, IL
Built 1946 Load: 24.6 t ADT: 4,100
RANDALL RD
FairOver: DRAINAGE DITCH
0.2 MI S US 30, Lee, IL
Built 1959 Load: 24.6 t ADT: 25
TR 47B
FairOver: GOOSEBERRY CR
2470 E, 2700 N, Livingston, IL
Built 1955 Load: 24.6 t ADT: 10
TR 119
FairOver: HORSE CRK
4 MI E NILWOOD, Macoupin, IL
Built 1900 Load: 24.6 t ADT: 20
FAS-1793
FairOver: CROOKED CREEK
3.5 MI E CENTRAL CTY, Marion, IL
Built 1984 Load: 24.6 t ADT: 625
I 24 EB
FairOver: CNIC RR
5.3 MI S JOHNSON, Massac, IL
Built 1971 Load: 24.6 t ADT: 10,600
US 12
FairOver: N BR NIPPERSINK CR
RICHMOND, McHenry, IL
Built 1951 Load: 24.6 t ADT: 11,600
TR 546
FairOver: BR SANGAMON RIVER
2.0 MI SE ARROWSMITH, McLean, IL
Built 1969 Load: 24.6 t ADT: 75
TR 1
FairOver: ROOKS CREEK
3.0 MI ENE CHENOA, McLean, IL
Built 1966 Load: 24.6 t ADT: 125
TR 21
FairOver: CLARY CREEK
1.5MI SW OAKFORD, Menard, IL
Built 1957 Load: 24.6 t ADT: 50
COTTONWOOD RD.
FairOver: BR. KYTE CREEK
4.0 N.W. FLAGG CENTE, Ogle, IL
Built 1960 Load: 24.6 t ADT: 75
FAS 598
FairOver: KISER CREEK TRIBUTAR
2.5 MI SW BAYLIS, Pike, IL
Built 1957 Load: 24.6 t ADT: 350
COVERED BRIDGE RD
FairOver: PANTHER CREEK
2.0 S OF CHATHAM, Sangamon, IL
Built 1972 Load: 24.6 t ADT: 400
ILL 161
FairOver: OVERFLOW SILVER CR
1.8 M E ILL 158, St. Clair, IL
Built 1932 Load: 24.6 t ADT: 4,950
BOLTON ROAD
FairOver: YELLOW CREEK
4.0 MI SW FREEPORT, Stephenson, IL
Built 1958 Load: 24.6 t ADT: 850
TR 130
FairOver: CREEK
.25M.S.JCT. TR 55, Union, IL
Built 1961 Load: 24.6 t ADT: 500
TR 39
FairOver: SUGAR CREEK
3.7 MI NW OF ELLIS, Vermilion, IL
Built 1973 Load: 24.6 t ADT: 50
TR 101
FairOver: BR CEDAR CR
SW-16-T11NR2W, Warren, IL
Built 1970 Load: 24.6 t ADT: 650
TELEGRAPH RD
FairOver: UNNAMED CREEK
0.25 MI SW SAUNDERS, Winnebago, IL
Built 1948 Load: 24.6 t ADT: 1,400
CEMETERY ROAD
FairOver: TUNNISON CREEK
3.10 MI E OF ILL 70, Winnebago, IL
Built 1954 Load: 24.6 t ADT: 575
TR 244A
FairOver: PANTHER CREEK
1.25 MI NE PANOLA, Woodford, IL
Built 1962 Load: 24.6 t ADT: 200
TR-162
FairOver: Trib Panther Creek
5 MI SE EUREKA, Woodford, IL
Built 1955 Load: 24.6 t ADT: 25
VINCENNES AVE
FairOver: THORN CREEK
0.7 M S 183RD, Cook, IL
Built 1920 Load: 24.9 t ADT: 6,150
STATE ST
FairOver: LONG RUN CREEK
0.1 M S ARCHER, Cook, IL
Built 1940 Load: 24.9 t ADT: 7,850
Showing 5,701-5,750 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 |