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 189
GoodOver: Coates Ck
4.5 Mi NW Carrollton, Greene, IL
Built 2020 Load: 46.0 t ADT: 50
TR 196
GoodOver: Rock Creek
0.58 mi S FAS 427, Hancock, IL
Built 2019 Load: 46.0 t ADT: 100
US 52
GoodOver: MARTINTON DR DITCH
3.27 MI E OF ILL 1, Iroquois, IL
Built 1980 Load: 46.0 t ADT: 1,700
CH 2
GoodOver: CREEK
NW 1/4 SEC 13-7-3, Jackson, IL
Built 2005 Load: 46.0 t ADT: 250
CH-11 N Marion St
GoodOver: Trib to Crab Orchard
0.25 MI N OF C'DALE, Jackson, IL
Built 2010 Load: 46.0 t ADT: 500
FAS-2826 (ILL-37)
GoodOver: STREAM
2.4 MI S DIX, Jefferson, IL
Built 2008 Load: 46.0 t ADT: 4,000
E. LIBERTY RD
GoodOver: AUXIER CREEK
2.5 MI SW BLUFORD, Jefferson, IL
Built 2021 Load: 46.0 t ADT: 50
MAIN STREET
GoodOver: BLACKBERRY CREEK
WEST OF IL 47, Kane, IL
Built 2022 Load: 46.0 t ADT: 2,650
US 34 FAP 587
GoodOver: VERMILLION CREEK
0.29 E OF US51/I39, LaSalle, IL
Built 1977 Load: 46.0 t ADT: 1,850
US 34 FAP 587
GoodOver: STREAM
4.8 MI W OF I-39, LaSalle, IL
Built 2009 Load: 46.0 t ADT: 1,900
TR 142B
GoodOver: LONG POINT CR
E 8TH N 250, LaSalle, IL
Built 1932 Load: 46.0 t ADT: 25
FAS-1860 (ILL-250)
GoodOver: STREAM
3.2 MI E SUMNER, Lawrence, IL
Built 1997 Load: 46.0 t ADT: 2,050
TR-193
GoodOver: RACCOON CREEK
3 MI SE SUMNER, Lawrence, IL
Built 1988 Load: 46.0 t ADT: 25
ILL 47
GoodOver: STREAM
3.84 M S OF US 24, Livingston, IL
Built 1993 Load: 46.0 t ADT: 2,650
E FR RD OF I-155
GoodOver: S FK PRAIRIE CREEK
.2M S US 136, Logan, IL
Built 1990 Load: 46.0 t ADT: 700
NEW COLUMBIA RD
GoodOver: NEW COLUMBIA DITCH
4.3 M N ROUND KNOB, Massac, IL
Built 2014 Load: 46.0 t ADT: 500
US 14
GoodOver: LAWRENCE CREEK
1.84 S STATE LINE, McHenry, IL
Built 2015 Load: 46.0 t ADT: 6,500
US 67 SB
GoodOver: SPOON CREEK
3.8 MI S I 72/US 36, Morgan, IL
Built 2004 Load: 46.0 t ADT: 5,200
US 67 NB
GoodOver: SPOON CREEK
3.8 MI S I 72/US 36, Morgan, IL
Built 2004 Load: 46.0 t ADT: 5,200
LOWDEN RD
GoodOver: UNNAMED CREEK
4 MI S OREGON, Ogle, IL
Built 2008 Load: 46.0 t ADT: 750
SMITHVILLE RD
GoodOver: BR COPPERAS CREEK
SE1/4 26 TRIVOLI TWP, Peoria, IL
Built 2020 Load: 46.0 t ADT: 500
FORD ROAD - TR 224
GoodOver: FARGO RUN
WLINENW1/4 4 T9NR7E, Peoria, IL
Built 1982 Load: 46.0 t ADT: 300
I-72 WB
GoodOver: NAPOLEON HOLLOW DRW
4.1M W IL 100 INTCHG, Pike, IL
Built 1989 Load: 46.0 t ADT: 4,950
ILL 3
GoodOver: MARY'S RIVER
1.3 MI S CHESTER, Randolph, IL
Built 1933 Load: 46.0 t ADT: 3,450
IL 3
GoodOver: UPRR, Prarie duPont Cana
NORTH OF DUPO, St. Clair, IL
Built 2012 Load: 46.0 t ADT: 9,600
TR 498
GoodOver: WIHPPOORWILL BRANCH
5 MI. E. OF G'TOWN, Vermilion, IL
Built 2018 Load: 46.0 t ADT: 125
US 34
GoodOver: Cedar Creek
0.9 Mi W of Knox Co Line, Warren, IL
Built 2023 Load: 46.0 t ADT: 8,950
TR 187 (Jimtown Rd
GoodOver: Elkhorn Creek
2 Mi NE Lively Grove, Washington, IL
Built 2020 Load: 46.0 t ADT: 10
FAS 2821
GoodOver: Branch Elm River Dra
3.5 MI SSW Mt. Erie, Wayne, IL
Built 2020 Load: 46.0 t ADT: 50
FAP-332 (ILL1/14)
GoodOver: Crooked Creek
2 Mi S Crossville, White, IL
Built 2014 Load: 46.0 t ADT: 4,200
IL 171
GoodOver: LONG RUN CREEK
.05 M S OF CNTY LINE, Will, IL
Built 2017 Load: 46.0 t ADT: 14,200
HERRIN ROAD
GoodOver: TRIB TO POND CREEK
1.0M E HERRIN, Williamson, IL
Built 2016 Load: 46.0 t ADT: 5,700
ILL 127
GoodOver: COOPER CREEK
0.2 MI S UNION CO, Alexander, IL
Built 1984 Load: 46.3 t ADT: 675
I-80 EB
GoodOver: Hennepin Canal
0.9 mi W of IL 40, Bureau, IL
Built 2014 Load: 46.3 t ADT: 8,950
TR 111
GoodOver: BRUSH CREEK
3.5 MI NE ARLINGTON, Bureau, IL
Built 2022 Load: 46.3 t ADT: 50
TOWNSHIP ROAD 238
GoodOver: CROW CREEK
9 MI S OF TISKILWA, Bureau, IL
Built 2018 Load: 46.3 t ADT: 25
CH 12(FAS 522)
GoodOver: E BR EMBARRAS RIVER
2 MI N OF LONGVIEW, Champaign, IL
Built 2017 Load: 46.3 t ADT: 700
FAI 64 EB
GoodOver: SYCAMORE DRAINAGE DT
.75 W COUNTY LINE, Clinton, IL
Built 1970 Load: 46.3 t ADT: 15,500
FAI 64 WB
GoodOver: SYCAMORE DRAIN DITCH
3/4 MI WEST OF CL, Clinton, IL
Built 1970 Load: 46.3 t ADT: 15,500
CH 19
GoodOver: Lake Mattoon
1.5 Mi. N Neoga, Cumberland, IL
Built 2021 Load: 46.3 t ADT: 525
FAP 749
GoodOver: DITCH
EAST OF ARCOLA, Douglas, IL
Built 2017 Load: 46.3 t ADT: 2,300
FAP 323(US 36)
GoodOver: SALT FORK CREEK
3.0 W IND LINE, Edgar, IL
Built 1981 Load: 46.3 t ADT: 1,100
TR 185
GoodOver: Trib. to Butter Ck
2.4 Mi. SW of Albion, Edwards, IL
Built 2019 Load: 46.3 t ADT: 50
FAS-711 (CH-25)
GoodOver: COON CREEK
N EDGE ALTAMONT, Effingham, IL
Built 1991 Load: 46.3 t ADT: 1,550
BIG HILL ROAD
GoodOver: RUNNING SLOUGH TRIB
3MI N OLD SHAWNEETOW, Gallatin, IL
Built 2008 Load: 46.3 t ADT: 100
IL 96
GoodOver: BRANCH RILEY CREEK
1.3 M S NAUVOO, Hancock, IL
Built 2011 Load: 46.3 t ADT: 1,050
US 45
GoodOver: DUTCHMAN CREEK
1.6 MI S VIENNA, Johnson, IL
Built 2005 Load: 46.3 t ADT: 2,000
FAP 332 (IL 1)
GoodOver: Stream
MP 17.06, Lawrence, IL
Built 2019 Load: 46.3 t ADT: 3,600
US 50
GoodOver: PRAIRIE CREEK
2 MI E US-51, Marion, IL
Built 1996 Load: 46.3 t ADT: 6,050
IL 176
GoodOver: OVERLAND FLOW AREA
0.31 M W N UNION RD, McHenry, IL
Built 2008 Load: 46.3 t ADT: 5,700
Showing 24,351-24,400 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 |