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
I-88 WB
GoodOver: STEWARD CR
AT OGLE CO LN, Lee, IL
Built 1974 Load: 47.6 t ADT: 8,050
ILL 23
GoodOver: VERMILLION RIVER
1.3 MI W OF CORNELL, Livingston, IL
Built 2004 Load: 47.6 t ADT: 1,400
IL 17 FAP 41
GoodOver: TRIB TO REDDICK RUN
7.7 MI E OF IL 47, Livingston, IL
Built 2010 Load: 47.6 t ADT: 1,850
IL 47
GoodOver: STREAM
4.46 M S IL 116, Livingston, IL
Built 1993 Load: 47.6 t ADT: 2,100
CH-10 (FAS 349)
GoodOver: Hickory Creek
1 MI N WESTON, Livingston, IL
Built 2010 Load: 47.6 t ADT: 1,150
TR 7
GoodOver: BRUSH CREEK
2MI NE VIRDEN, Macoupin, IL
Built 2005 Load: 47.6 t ADT: 300
ILL 157
GoodOver: SCHOOLHOUSE BRANCH
N JCT BELT 40 & 157, Madison, IL
Built 1933 Load: 47.6 t ADT: 15,000
US 51 (FAP 322)
GoodOver: FLAT CREEK
.4 MI S FAYETTE C L, Marion, IL
Built 1960 Load: 47.6 t ADT: 2,650
FAS 441 - CH 9
GoodOver: SUGAR CREEK
CTR-25-T4NR1W, McDonough, IL
Built 2020 Load: 47.6 t ADT: 575
IL RT 9
GoodOver: KINGS CREEK
3.6 MI E IL 122, McLean, IL
Built 2004 Load: 47.6 t ADT: 4,100
TR 45
GoodOver: N. CAMP CREEK
NE-23-T15NR3W, Mercer, IL
Built 2020 Load: 47.6 t ADT: 10
IL 127
GoodOver: UNION PACIFIC RR
.1M N IL 185, Montgomery, IL
Built 1990 Load: 47.6 t ADT: 6,300
CH 6
GoodOver: WALNUT CREEK
.05 MI N LYNNVILLE, Morgan, IL
Built 2013 Load: 47.6 t ADT: 375
TR 28
GoodOver: DITCH
4.25 MI S LAKE CITY, Moultrie, IL
Built 1988 Load: 47.6 t ADT: 20
CH 1 (FAS 049)
GoodOver: BRANCH OF MILL CREEK
3.5 MI NE LEAF RIVER, Ogle, IL
Built 2022 Load: 47.6 t ADT: 850
TR 36
GoodOver: COFFEE CREEK
1055N, 875E, Putnam, IL
Built 2022 Load: 47.6 t ADT: 100
FAS 1201 (CH 9)
GoodOver: COPPERAS CREEK
2.1 MI S EDGINGTON, Rock Island, IL
Built 2022 Load: 47.6 t ADT: 375
US 45-FAP 332
GoodOver: MIDDLE FORK SALINE R
N OF HARRISBURG, Saline, IL
Built 2004 Load: 47.6 t ADT: 10,200
FAI 72 EB
GoodOver: DRAINAGE DITCH
2.6MI W IL 100 INT, Scott, IL
Built 1986 Load: 47.6 t ADT: 4,950
ILL 106
GoodOver: SANDY CREEK
.5 MI E WINCHESTER, Scott, IL
Built 1990 Load: 47.6 t ADT: 1,700
CH 41
GoodOver: ROBINSON CREEK
0.6 MI S WESTERVELT, Shelby, IL
Built 2022 Load: 47.6 t ADT: 300
TR 7
GoodOver: SPOON RIVER
W.CTR-2-T14NR6E, Stark, IL
Built 1919 Load: 47.6 t ADT: 25
STATE LN RD(FAS104
GoodOver: INDIAN CREEK
2 MI. W. OF IL 73, Stephenson, IL
Built 1990 Load: 47.6 t ADT: 200
FAP-332 (ILL-1)
GoodOver: COFFEE CREEK
.75 MI NE KEENSBURG, Wabash, IL
Built 1996 Load: 47.6 t ADT: 2,400
FAP 332 (IL 1)
GoodOver: GREATHOUSE CREEK
SW EDGE MT CARMEL, Wabash, IL
Built 2014 Load: 47.6 t ADT: 3,450
IL 40
GoodOver: DRAINAGE DITCH
0.5 MI. S. OF I-88, Whiteside, IL
Built 1993 Load: 47.6 t ADT: 6,000
IL 7
GoodOver: RR - CSXT
0.65 M S OF I-80, Will, IL
Built 1968 Load: 47.6 t ADT: 11,100
IL 59, US 30
GoodOver: DU PAGE RIVER
0.3 M N IL 126, Will, IL
Built 2002 Load: 47.6 t ADT: 32,100
IL 148
GoodOver: WOLF CREEK
I MI N OF I-57, Williamson, IL
Built 2021 Load: 47.6 t ADT: 5,600
CH 52(WILLOW BROOK
GoodOver: BRANCH OF DRY CREEK
0.5 MI S ROCKTON RD, Winnebago, IL
Built 2004 Load: 47.6 t ADT: 5,650
ILL 336 SB
GoodOver: ROCK CREEK
2MI N I172/24 INT, Adams, IL
Built 1994 Load: 48.0 t ADT: 5,800
TR 130
GoodOver: SILVER CREEK
7 MI SE OF BUDA, Bureau, IL
Built 2022 Load: 48.0 t ADT: 75
IL 71
GoodOver: STREAM
0.1 MI E OF ILL 26S, Bureau, IL
Built 1968 Load: 48.0 t ADT: 3,400
TR 100B
GoodOver: Willow Creek Trib
1.5 Mi. N Moonshine, Clark, IL
Built 2019 Load: 48.0 t ADT: 100
US 20
GoodOver: RR - EJ&E
0.8M W NAPERVILLE RD, Cook, IL
Built 1933 Load: 48.0 t ADT: 39,500
US 20
GoodOver: W BR DU PAGE RIVER
0.18 M E Greenbrook, DuPage, IL
Built 2017 Load: 48.0 t ADT: 34,600
US 24/IL 100
GoodOver: SPOON RIV OVER FLOW
N OF DUNCAN MILLS, Fulton, IL
Built 2006 Load: 48.0 t ADT: 1,900
TR 136
GoodOver: Trib To Bear Creek
0.97 mi S of CH 11, Hancock, IL
Built 2018 Load: 48.0 t ADT: 75
TR 379
GoodOver: Whitney Slough
2.06 mi W FAS 1600, Hancock, IL
Built 2019 Load: 48.0 t ADT: 75
I 80
GoodOver: OAT CREEK
2 MI E OF ILL 82, Henry, IL
Built 1961 Load: 48.0 t ADT: 17,300
FAS-2869 (ILL-37)
GoodOver: Stream
Bonnie, Jefferson, IL
Built 2013 Load: 48.0 t ADT: 3,700
IL 47
GoodOver: VIRGIL DITCH #2
2.2 M N OF IL64, Kane, IL
Built 2013 Load: 48.0 t ADT: 6,850
IL 17
GoodOver: Granary Creek
1.25mi E of Essex Rd, Kankakee, IL
Built 2021 Load: 48.0 t ADT: 2,950
FAU 4000 ELDAMAIN
GoodOver: ROB ROY CREEK
1 M NW YORKVILLE, Kendall, IL
Built 2018 Load: 48.0 t ADT: 4,550
WB I-74
GoodOver: FRENCH CREEK
5 MI E SPOON RIVER, Knox, IL
Built 2020 Load: 48.0 t ADT: 7,700
EB I-74
GoodOver: FRENCH CREEK
5 MI E SPOON RIVER, Knox, IL
Built 2020 Load: 48.0 t ADT: 7,700
CH 33 FAS 1365
GoodOver: LITTLE VERMILION
N 33RD,E 415, LaSalle, IL
Built 2010 Load: 48.0 t ADT: 525
Marine Road-FAS 77
GoodOver: East Fork SILVER CRK
1.4 mi N. of US 40, Madison, IL
Built 1993 Load: 48.0 t ADT: 800
TR 130
GoodOver: BARNES CREEK
4.5M NE OF BROOKPORT, Massac, IL
Built 2005 Load: 48.0 t ADT: 25
RANDALL RD
GoodOver: CREEK
RANDALL RD AT, McHenry, IL
Built 1970 Load: 48.0 t ADT: 28,800
Showing 24,551-24,600 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 |