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
TR 7 A
FairOver: OPOSSUM CREEK
1.4 E IL 130 ON CO L, Cumberland, IL
Built 1975 Load: 17.5 t ADT: 50
ALEXANDER (FAU 733
FairOver: COON CREEK
CITY OF CLINTON, De Witt, IL
Built 1930 Load: 17.5 t ADT: 700
NEW LEBANON RD
FairOver: COON CREEK
3460N 1785E, DeKalb, IL
Built 1969 Load: 17.5 t ADT: 25
TR 70
FairOver: BRUSHY FORK
1 MI NW OF HUME, Edgar, IL
Built 1954 Load: 17.5 t ADT: 125
TR 274
FairOver: STREAM
2 MI SE OF LOGAN, Edgar, IL
Built 1930 Load: 17.5 t ADT: 50
TR-9A
FairOver: WOLF CREEK
4 MI NW SHUMWAY, Effingham, IL
Built 1909 Load: 17.5 t ADT: 75
TR-217
FairOver: BISHOP CREEK
3 MI E WATSON, Effingham, IL
Built 1909 Load: 17.5 t ADT: 150
TR-316A
FairOver: DIETERICH CREEK
1.5 MI SW DIETERICH, Effingham, IL
Built 1973 Load: 17.5 t ADT: 150
FAS-651
FairOver: TRIB BECKS CREEK
4.5 MI NE RAMSEY, Fayette, IL
Built 1935 Load: 17.5 t ADT: 150
TR-292
FairOver: FLAT CREEK
4 MI SE SHOBONIER, Fayette, IL
Built 1920 Load: 17.5 t ADT: 50
TR 99 DRUMMER
FairOver: DICKERSON SLOUGH
570E,300N, Ford, IL
Built 1968 Load: 17.5 t ADT: 200
TR 295 PARRISH RD
FairOver: BRANCH EWING CREEK
TR 295 OV BR EWING C, Franklin, IL
Built 1969 Load: 17.5 t ADT: 75
TR 8A
FairOver: TRIB. CARLTON BRANCH
2 MI. N. MACEDONIA, Franklin, IL
Built 1924 Load: 17.5 t ADT: 75
TR 156
FairOver: STREAM
2.7 MI NE CARROLLTON, Greene, IL
Built 1901 Load: 17.5 t ADT: 25
TR 3B MINOOKA ROAD
FairOver: SARATOGA CREEK
0.36 MI E LISBON RD, Grundy, IL
Built 1984 Load: 17.5 t ADT: 300
CO HWY 12
FairOver: SHUHART CREEK
1 MI S OF WARSAW, Hancock, IL
Built 1956 Load: 17.5 t ADT: 500
TR 239B
FairOver: LITTLE BEAR CREEK
1.5 MI SE ELVASTON, Hancock, IL
Built 1960 Load: 17.5 t ADT: 50
2ND STREET
FairOver: TRIB TO LAMOINE
LAHARPE, Hancock, IL
Built 1921 Load: 17.5 t ADT: 175
TR 28
FairOver: PINHOOK CREEK
02 MI S FAS 934, Hardin, IL
Built 1954 Load: 17.5 t ADT: 125
TR 28
FairOver: PINHOOK CR.TRIB.
1.8MI S FAS 934, Hardin, IL
Built 1954 Load: 17.5 t ADT: 50
TR 297
FairOver: WALKER CREEK
2.0 MI NW KEWANEE, Henry, IL
Built 1940 Load: 17.5 t ADT: 50
CH 19 FAS 240
FairOver: EDWARDS R. TRIB.
2 1/2 MI. S. ANDOVER, Henry, IL
Built 1950 Load: 17.5 t ADT: 350
TR-44
FairOver: ISLAND CREEK
2 MI E EFFINGHAM CL, Jasper, IL
Built 1909 Load: 17.5 t ADT: 50
TR 77
FairOver: STREAM
0.5 M NE NUTWOOD, Jersey, IL
Built 1924 Load: 17.5 t ADT: 75
WILLOW ROAD
FairOver: MUDDY PLUM RIVER
6 M S STOCKTON, Jo Daviess, IL
Built 1910 Load: 17.5 t ADT: 125
TOWNSHIP ROAD NO.
FairOver: WEST FORK APPLE RIV
5 M W APPLE RIVER, Jo Daviess, IL
Built 1901 Load: 17.5 t ADT: 50
KELLY RD
FairOver: E FORK GALENA RIV
2.5 MI NE GALENA, Jo Daviess, IL
Built 1901 Load: 17.5 t ADT: 25
TOWNSHIP ROAD NO 8
FairOver: FURNACECREEK
2 MI N W ELIZABETH, Jo Daviess, IL
Built 1916 Load: 17.5 t ADT: 50
TOWNSHIP RD NO 186
FairOver: BR COON CREEK
5.5 MI SO APPLE RIV, Jo Daviess, IL
Built 1915 Load: 17.5 t ADT: 25
TOWNSHIP RD NO 197
FairOver: MIDDLE FORK PLUM RIV
4 MI SO STOCKTON, Jo Daviess, IL
Built 1919 Load: 17.5 t ADT: 75
S. TOWN HALL RD
FairOver: TRIB MUDDY PLUM
6.6MI SE STOCKTON, Jo Daviess, IL
Built 1950 Load: 17.5 t ADT: 25
CH 3 FAU 6184
FairOver: BAKER CR
.3 MI S KANKAKEE, Kankakee, IL
Built 1938 Load: 17.5 t ADT: 4,200
TR 48
FairOver: LEHIGH RUN
2.5 MI SW BONDFIELD, Kankakee, IL
Built 1938 Load: 17.5 t ADT: 350
TR 9
FairOver: PIKE CREEK
4.25 MI NEGRANT PARK, Kankakee, IL
Built 1973 Load: 17.5 t ADT: 200
TR 151
FairOver: TRIB TO CALDWELL CRE
CTR-36-T12NR4E, Knox, IL
Built 1900 Load: 17.5 t ADT: 50
TR 263
FairOver: TRIB TO SPOON RIVER
NW-21-T10NR3E, Knox, IL
Built 1900 Load: 17.5 t ADT: 50
TR 323
FairOver: INDIAN CREEK
SW-10-T9NR1E, Knox, IL
Built 1900 Load: 17.5 t ADT: 10
TR 172
FairOver: TRIB TO SPOON RIVER
N. CTR-36-T9NR2E, Knox, IL
Built 1900 Load: 17.5 t ADT: 50
TR 273
FairOver: PIG CREEK
NE-28-T10NR2E, Knox, IL
Built 1900 Load: 17.5 t ADT: 25
TR 19
FairOver: INDIAN CREEK
N 47TH E 1245, LaSalle, IL
Built 1949 Load: 17.5 t ADT: 75
CH-39
FairOver: HOG RUN CREEK
N2079 E,27TH, LaSalle, IL
Built 1940 Load: 17.5 t ADT: 300
TR-11
FairOver: SUGAR CREEK
4 MI E BIRDS, Lawrence, IL
Built 1931 Load: 17.5 t ADT: 50
TR-69
FairOver: BIRCH CREEK
3 MI W PINKSTAFF, Lawrence, IL
Built 1909 Load: 17.5 t ADT: 35
TR-225
FairOver: CREEK
2 MI N HELENA, Lawrence, IL
Built 1938 Load: 17.5 t ADT: 50
CEDAR STREET 3100
FairOver: CRABAPPLE CREEK
SUMNER, Lawrence, IL
Built 1973 Load: 17.5 t ADT: 50
TR 109
FairOver: FIVE MILE CREEK
3220 E, 2100 N, Livingston, IL
Built 1944 Load: 17.5 t ADT: 50
Indiana Ave/FAU 63
FairOver: Trib. Smith Branch
1685 E, 1800 N, Livingston, IL
Built 1948 Load: 17.5 t
TR 59
FairOver: PRAIRIE CK TRIB
2.5 N 1.5 E NEW HLND, Logan, IL
Built 1941 Load: 17.5 t ADT: 50
TR 64 HUNTER RD
FairOver: JOE'S CRK.
2.5 MI NW HETTICK, Macoupin, IL
Built 1900 Load: 17.5 t ADT: 35
TR 173
FairOver: MATODD BRANCH
4.2 MI W OF HETTICK, Macoupin, IL
Built 1935 Load: 17.5 t ADT: 50
Showing 4,301-4,350 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 |