Total Bridges
26,928
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Illinois.
- 26,928
- Public bridges
- 45.6%
- Good condition
- 9.3%
- Poor condition
Illinois holds 26,928 public highway bridges (#2 of 52 by inventory) with a 9.35% Poor share (#12 of 52 by Poor share).
That is 9.3% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 41 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
45.6%
12,289 bridges rated 7-9
-4.4pp vs 50% benchmark
Poor Condition
9.3%
2,517 bridges whose lowest applicable component is rated 0-4
1.8pp vs national avg 7.5%
Illinois vs national bridge condition
Illinois - Good condition share 45.6%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Illinois - Poor-condition share 31.2%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Illinois in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Illinois vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
26,928 2nd of 54 higher than 52 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Illinois
The highlighted point is Illinois: 26,928 bridges and 9.35% in Poor condition, rank #41 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Illinois on that same Poor-share ordering:
- Massachusetts: 5,295 bridges · 8.88% Poor
- Missouri: 24,618 bridges · 8.95% Poor
- Illinois: 26,928 bridges · 9.35% Poor
- New York: 17,642 bridges · 9.43% Poor
- North Dakota: 4,255 bridges · 10.98% Poor
The full national sortable table lives on the rankings page.
Material families in Illinois
Exclusive FHWA material families across all 26,928 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Illinois’s inventory
State agency holds 31.3% of the 26,928 public highway bridges filed under Illinois in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Illinois’s bridges were built
Pre-1950 construction accounts for 11.2% of the 26,928 bridges with a recorded original year in Illinois. Era bands are orthogonal to the Poor-share ranking above.
Condition Distribution
Counties (102)
Adams 319 Alexander 93 Bond 162 Boone 109 Brown 71 Bureau 375 Calhoun 81 Carroll 179 Cass 77 Champaign 727 Christian 321 Clark 230 Clay 166 Clinton 190 Coles 304 Cook 1721 Crawford 197 Cumberland 169 De Witt 192 DeKalb 261 Douglas 232 DuPage 344 Edgar 278 Edwards 79 Effingham 253 Fayette 357 Ford 302 Franklin 310 Fulton 210 Gallatin 82 Greene 162 Grundy 269 Hamilton 165 Hancock 292 Hardin 61 Henderson 142 Henry 328 Iroquois 570 Jackson 228 Jasper 181 Jefferson 260 Jersey 113 Jo Daviess 193 Johnson 118 Kane 336 Kankakee 344 Kendall 132 Knox 304 LaSalle 528 Lake 251 Lawrence 185 Lee 371 Livingston 579 Logan 292 Macon 346 Macoupin 242 Madison 523 Marion 296 Marshall 155 Mason 86 Massac 132 McDonough 209 McHenry 227 McLean 624 Menard 89 Mercer 163 Monroe 132 Montgomery 261 Morgan 234 Moultrie 172 Ogle 377 Peoria 352 Perry 136 Piatt 246 Pike 330 Pope 88 Pulaski 108 Putnam 50 Randolph 149 Richland 151 Rock Island 272 Saline 185 Sangamon 466 Schuyler 114 Scott 99 Shelby 335 St. Clair 486 Stark 93 Stephenson 342 Tazewell 358 Union 192 Vermilion 494 Wabash 89 Warren 199 Washington 233 Wayne 266 White 214 Whiteside 278 Will 649 Williamson 201 Winnebago 467 Woodford 223
Illinois vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
MA
Massachusetts
8.88% top marginal rate
MO
Missouri
8.95% top marginal rate
IL
Illinois
9.35% top marginal rate
NY
New York
9.43% top marginal rate
ND
North Dakota
10.98% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
TR 416
PoorOver: MCKEE CRK
4.7 MI W KELLERVILLE, Adams, IL
Built 1905 Load: 0.0 t ADT: 10
CH 11
PoorOver: SOUTH FORKBEAR CREEK
3.96 MI N CAMP POINT, Adams, IL
Built 1975 Load: 0.0 t ADT: 725
FAS 945
PoorOver: CLEAR CREEK DITCH
2.5 MI E OF MCCLURE, Alexander, IL
Built 1959 Load: 0.0 t ADT: 1,100
CH 4
PoorOver: SPRING BRANCH
4.5M N KEYSPORT, Bond, IL
Built 1973 Load: 0.0 t ADT: 50
TR-164
PoorOver: Little Beaver Creek
2 MI S DUDLEYVILLE, Bond, IL
Built 1965 Load: 0.0 t ADT: 50
TR 85
PoorOver: MASTERS CREEK
3 MI SE OF OHIO, Bureau, IL
Built 1965 Load: 0.0 t ADT: 25
All Bridges in Illinois
TR145
FairOver: TRIB OF WALNUT CR
2.0 MI S. ILL 116, Woodford, IL
Built 1986 Load: 32.4 t ADT: 50
TR 92
FairOver: TRIB OF RICHLAND CR
0.3 MI S CH 24, Woodford, IL
Built 1987 Load: 32.4 t ADT: 50
TR168A (Denman Rd)
FairOver: VINCENT RUN
340 N 2050 E, Woodford, IL
Built 1989 Load: 32.4 t ADT: 75
CH 3
FairOver: WALNUT CR
1.7 MI. NW EUREKA, Woodford, IL
Built 1990 Load: 32.4 t ADT: 200
TR 186
FairOver: PANTHER CR
1.5 MI. N. ILL 24, Woodford, IL
Built 1991 Load: 32.4 t ADT: 200
TR 221
FairOver: MILL CREEK
1400N 585S, Woodford, IL
Built 1994 Load: 32.4 t ADT: 100
TR 160
FairOver: HALLENBACH CR
2. MI. W. ILL 116, Woodford, IL
Built 1991 Load: 32.4 t ADT: 50
TR 36
FairOver: COON CREEK
1960N 580E, Woodford, IL
Built 1994 Load: 32.4 t ADT: 100
TR 1A
FairOver: SNAG CREEK
1MILE WEST OF TR23, Woodford, IL
Built 1994 Load: 32.4 t ADT: 50
TR84
FairOver: MUD CREEK
0.3MI N-TR237A, Woodford, IL
Built 1994 Load: 32.4 t ADT: 175
TR 162
FairOver: W BR OF PANTHER CRK
.5 M E OF ROANOKE, Woodford, IL
Built 1997 Load: 32.4 t ADT: 100
FAS 366
FairOver: RICHLAND CREEK
.55 MI E OF IL 26, Woodford, IL
Built 1995 Load: 32.4 t ADT: 275
TR 85
FairOver: PARTRIDGE CRK
2 MI N OF METAMORA, Woodford, IL
Built 1997 Load: 32.4 t ADT: 50
TR 68
FairOver: RICHLAND CREEK
4.5 MI SW WASHBURN, Woodford, IL
Built 1998 Load: 32.4 t ADT: 50
TR 78
FairOver: RICHLAND CR
1 MI N CAZENOVIA, Woodford, IL
Built 2006 Load: 32.4 t ADT: 25
TR 122
FairOver: SNAG CR
2150N 1500E, Woodford, IL
Built 2005 Load: 32.4 t ADT: 25
TR 205
FairOver: TRIB PANTHER CR
3.5 S W SECOR, Woodford, IL
Built 2006 Load: 32.4 t ADT: 525
TR 230
FairOver: E BR PANTHER CR
SE COR-25-T27NR1E, Woodford, IL
Built 2007 Load: 32.4 t ADT: 275
TR 51 (Low Point R
FairOver: Richland Creek
0.2 MI W IL 89, Woodford, IL
Built 2011 Load: 32.4 t ADT: 100
TR 194
FairOver: TRIB PANTHER CR
2 MI SE SECOR, Woodford, IL
Built 2011 Load: 32.4 t ADT: 100
TR 58
FairOver: WALNUT CREEK
910 EAST 1290 NORTH, Woodford, IL
Built 1978 Load: 32.4 t ADT: 150
FAS 1358 CH 6
FairOver: WOLF CREEK
2MI. S. ELPASO, Woodford, IL
Built 1990 Load: 32.4 t ADT: 750
TR108E
FairOver: BURKETT HOLLOW CREEK
1.26 MI W & S ILL 26, Woodford, IL
Built 1994 Load: 32.4 t ADT: 75
TR 159A
FairOver: WOLF CREEK
1 MI S GRMNTN HILLS, Woodford, IL
Built 1998 Load: 32.4 t ADT: 350
BULLOCK ST
FairOver: TRIB OF WALNUT CR
0.05 MI W US 24, Woodford, IL
Built 1986 Load: 32.4 t ADT: 275
LAKEVIEW DRIVE
FairOver: EUREKA LAKE
SW1/4-13-T26NR2W, Woodford, IL
Built 2003 Load: 32.4 t ADT: 150
MAIN ST WASHBURN
FairOver: SNAG CREEK
0.1 MILE N.WATER ST, Woodford, IL
Built 1994 Load: 32.4 t ADT: 425
CHURCH STREET
FairOver: SNAG CREEK
.2 MI W OF ILL 89, Woodford, IL
Built 1999 Load: 32.4 t ADT: 100
PATTEN ROAD
FairOver: PAVED ROAD
0.5 KM N OF FINLEY ROAD, Lake, IL
Built 2005 Load: 32.6 t ADT: 1,050
CONNECICUT AVE
FairOver: CREEK
50M E. OF MISSISSIPPI ST., Lake, IL
Built 1957 Load: 32.6 t ADT: 210
US 24
FairOver: HOMAN CREEK
.05M N 12TH ST., Adams, IL
Built 1968 Load: 32.7 t ADT: 3,800
CH 3
FairOver: CREEK
6.5 MI NE OF QUINCY, Adams, IL
Built 1940 Load: 32.7 t ADT: 325
ILL 64 AND US 52
FairOver: STRADDLE CREEK
3.4 MI E JCT ILL 78, Carroll, IL
Built 1952 Load: 32.7 t ADT: 2,950
FAP 709 (US 136)
FairOver: E BR SALT FORK RIVER
3 MI E OF RANTOUL, Champaign, IL
Built 1988 Load: 32.7 t ADT: 3,750
TR 196 A
FairOver: OHLMAN BRANCH
1 MI NW OHLMAN, Christian, IL
Built 1964 Load: 32.7 t ADT: 100
CH 6(FAS 686)
FairOver: I-70
3 MI E MARTINSVILLE, Clark, IL
Built 1969 Load: 32.7 t ADT: 300
TR 223
FairOver: I-70
1.2 MI E OF IL 49, Clark, IL
Built 1969 Load: 32.7 t ADT: 100
TR 48
FairOver: I-70
2 MI E IL 49, Clark, IL
Built 1970 Load: 32.7 t ADT: 75
WILLOW SPRINGS RD
FairOver: I- 55 STEVENSON
1 M W US 45, Cook, IL
Built 1963 Load: 32.7 t ADT: 14,700
US 14 (DEMPSTER ST
FairOver: CREEK
0.1 M E I-294, Cook, IL
Built 1928 Load: 32.7 t ADT: 36,100
I- 90 94 RYAN ELEV
FairOver: 22ND TO SB CHI RVR
0.3 M N I-55, Cook, IL
Built 1962 Load: 32.7 t ADT: 189,500
I- 57 NB
FairOver: I- 80 WB
3.0 M S OF US 6, Cook, IL
Built 1964 Load: 32.7 t ADT: 63,700
I-290 IKE
FairOver: S BR CHICAGO RIVER
W FRANKLIN AVE, Cook, IL
Built 1956 Load: 32.7 t ADT: 80,900
ARLINGTON HEIGHTS
FairOver: SALT CREEK
1.6 M S ILL 72 P5, Cook, IL
Built 1971 Load: 32.7 t ADT: 20,300
STEGER RD
FairOver: DEER CREEK
0.45 M E STATE P2, Cook, IL
Built 1925 Load: 32.7 t ADT: 8,950
South Water St
FairOver: Lower Level S. Water
BTWN MICH & BEAUBIEN, Cook, IL
Built 1971 Load: 32.7 t ADT: 4,150
I-80 WB
FairOver: I 294
I-80 & I294 P3, Cook, IL
Built 1966 Load: 32.7 t ADT: 41,800
5TH AVE
FairOver: I 294
1 M SE I55 P10, Cook, IL
Built 1958 Load: 32.7 t ADT: 1,000
I-294 NB
FairOver: GRAND AVE
2.6 M SW ILL 19 P9, Cook, IL
Built 1958 Load: 32.7 t ADT: 86,550
I-294 SB
FairOver: ROOSEVELT R (ILL 38)
0.5 M S ILL 5 P20, Cook, IL
Built 1957 Load: 32.7 t ADT: 69,500
Showing 6,701-6,750 of 26,928 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
What to do with this
Use Illinois's inventory picture to drill to a county or a specific span.
- Browse counties in Illinois and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Illinois Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.