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
WINTER AV(FAU 6998
FairOver: STONY CREEK
N SIDE DANVILLE, Vermilion, IL
Built 2006 Load: 32.4 t ADT: 3,300
CH 1(FAU 7000)
FairOver: N FORK VERMILION RIV
1.5 MI NW 150 & 1, Vermilion, IL
Built 2006 Load: 32.4 t ADT: 2,050
BUCHANAN ST
FairOver: STONY CREEK
W BOWMAN/MAIN, Vermilion, IL
Built 2008 Load: 32.4 t ADT: 450
TR-9 (WABASH CO)
FairOver: BONPAS CREEK
5.5 MI WNW LANCASTER, Wabash, IL
Built 1981 Load: 32.4 t ADT: 50
TR-168
FairOver: CREEK
0.5 MI NE ALLENDALE, Wabash, IL
Built 1982 Load: 32.4 t ADT: 75
CH-17
FairOver: JORDON CREEK
0.8 MI S LANCASTER, Wabash, IL
Built 1987 Load: 32.4 t ADT: 200
TR-170
FairOver: CREEK
0.75 MI NE ALLENDALE, Wabash, IL
Built 1994 Load: 32.4 t ADT: 50
CH 5
FairOver: CREEK
1 MI NE KEENSBURG, Wabash, IL
Built 1998 Load: 32.4 t ADT: 150
TR 71
FairOver: TRIB OF JORDAN CR
8 MI N BELLMONT, Wabash, IL
Built 2003 Load: 32.4 t ADT: 50
FAS 1405
FairOver: HENDERSON CREEK
SW-24-T12NR1W, Warren, IL
Built 1985 Load: 32.4 t ADT: 50
FAI 64 EB
FairOver: LITTLE CROOKED CREEK
3.0 MI NW ILL 127, Washington, IL
Built 1969 Load: 32.4 t ADT: 14,650
FAI 64 WB
FairOver: LITTLE CROOKED CK
3 MI N W RT 127, Washington, IL
Built 1969 Load: 32.4 t ADT: 14,650
IL ROUTE 177
FairOver: W TRIB LTL CROOKD CR
1.5 MI W OF IL 127, Washington, IL
Built 1932 Load: 32.4 t ADT: 1,550
TR 123
FairOver: WILLOW CREEK
2 MI N-2.75 MI W NAS, Washington, IL
Built 1917 Load: 32.4 t ADT: 50
TR 123
FairOver: NASHVILLE CREEK
2 MI N NASHVILLE, Washington, IL
Built 1920 Load: 32.4 t ADT: 550
TR 156
FairOver: BR LITTLE CROOKED
EAST OF NEW MINDEN, Washington, IL
Built 1925 Load: 32.4 t ADT: 25
CH 6
FairOver: ELKHORN CREEK
0.5 M E OF VENEDY, Washington, IL
Built 1978 Load: 32.4 t ADT: 200
TR 70A
FairOver: WILLIAMS CREEK
5.5 MI S OF OKAWVILL, Washington, IL
Built 1978 Load: 32.4 t ADT: 175
TR 90
FairOver: BR WILLIAMS CR
3 MI SW OFADDIEVILLE, Washington, IL
Built 1981 Load: 32.4 t ADT: 50
TR 236
FairOver: BR GRAND POINT CREEK
2 MI SW OF IRVINGTON, Washington, IL
Built 1981 Load: 32.4 t ADT: 200
TR44
FairOver: BRANCH OF ELKHORN CR
2 MI NE LIVELY GROVE, Washington, IL
Built 1981 Load: 32.4 t ADT: 25
TR 225
FairOver: ELKHORN CREEK
4 MI E LIVELY GROVE, Washington, IL
Built 1982 Load: 32.4 t ADT: 75
TR 253
FairOver: LOCUST CREEK
NW 1/4 SEC19 T3S R2W, Washington, IL
Built 1983 Load: 32.4 t ADT: 75
TR 159
FairOver: LITTLE MUD CREEK
4MI NW LIVELY GROVE, Washington, IL
Built 1983 Load: 32.4 t ADT: 75
TR 237 A
FairOver: MUD CREEK
SW 1/4 SEC30 T3S R4W, Washington, IL
Built 1983 Load: 32.4 t ADT: 50
TR 211
FairOver: BEAUCOUP CREEK
SW 1/4 SEC 35 T2SR2W, Washington, IL
Built 1985 Load: 32.4 t ADT: 175
TR114 014/TR130 09
FairOver: KASKASKIA RIVER
2.5 MI N COVINGTON, Washington, IL
Built 1985 Load: 32.4 t ADT: 650
FAS 833
FairOver: ELKHORN CREEK
0.5 MI NORTH VENEDY, Washington, IL
Built 1985 Load: 32.4 t ADT: 625
FAS 788
FairOver: BRANCH OF MIDDLE CK
NE 1/4 SEC 11 T2S R2, Washington, IL
Built 1985 Load: 32.4 t ADT: 300
TR 70A
FairOver: WEAVER CREEK
NE 1/4 SEC17 T25 R4W, Washington, IL
Built 1986 Load: 32.4 t ADT: 200
TR 15
FairOver: BR OF GRAND POINT CK
1 MI SE OFNOLTING, Washington, IL
Built 1987 Load: 32.4 t ADT: 25
CH 1
FairOver: BROF BEAVER POND CK
NE 1/4 SEC 5 TZS R3W, Washington, IL
Built 1987 Load: 32.4 t ADT: 350
CH 12
FairOver: MUD CREEK
SW 1/4 SEC 16 T35R5W, Washington, IL
Built 1988 Load: 32.4 t ADT: 800
CH 18
FairOver: SEWER CREEK
0.7 MI N OF NOLTINGS, Washington, IL
Built 1992 Load: 32.4 t ADT: 550
TR 2
FairOver: BR. OF MUD CREEK
5 NILE N OF TILDEN, Washington, IL
Built 1994 Load: 32.4 t ADT: 175
FAS 836
FairOver: PUNCHEON CK
2.75 MI EAST DUBOIS, Washington, IL
Built 1989 Load: 32.4 t ADT: 550
TR 111
FairOver: GRAND POINT CREEK
3 MI. NW RICHVIEW, Washington, IL
Built 1990 Load: 32.4 t ADT: 50
CH 7
FairOver: HICKORY CREEK
2.25 MI E POSON, Washington, IL
Built 1991 Load: 32.4 t ADT: 100
TR 225
FairOver: ELKHORN CREEK
1 MI SW CORDES, Washington, IL
Built 1993 Load: 32.4 t ADT: 50
TR 244
FairOver: BR OF LITTLE MUDDY
0.5M S OF RADOM, Washington, IL
Built 1995 Load: 32.4 t ADT: 150
TR 70A
FairOver: ELKHORN CREEK
1.75 MI N OF ELKTON, Washington, IL
Built 1997 Load: 32.4 t ADT: 50
FAS 788
FairOver: CROOKED CREEK
4 MI N HOYLETON, Washington, IL
Built 2006 Load: 32.4 t ADT: 1,200
TR 197
FairOver: LITTLE MUDDY RIVER
0.75 MI SW ASHLEY, Washington, IL
Built 2007 Load: 32.4 t ADT: 25
TR 205
FairOver: LOCUST CREEK
2.75 MI SW NASHVILLE, Washington, IL
Built 2006 Load: 32.4 t ADT: 10
TR 250
FairOver: WEBSTER CREEK
1M WEST OF WAMAC, Washington, IL
Built 2008 Load: 32.4 t ADT: 75
FAP-821 (ILL-15)
FairOver: STREAM
SW FAIRFIELD AIRPORT, Wayne, IL
Built 1956 Load: 32.4 t ADT: 3,600
SBI-15 (OLD RT. 15
FairOver: STREAM
N OF WAYNE CITY, Wayne, IL
Built 2007 Load: 32.4 t ADT: 200
TR-249
FairOver: DRAINAGE DITCH
2.5 MI SE MT ERIE, Wayne, IL
Built 1967 Load: 32.4 t ADT: 25
TR-370
FairOver: EAGLE SLOUGH
4 MI NW MILL SHOALS, Wayne, IL
Built 1963 Load: 32.4 t ADT: 50
FAS-2816
FairOver: BRANCH LITTLE WABASH
1.2 MI E GOLDEN GATE, Wayne, IL
Built 2002 Load: 32.4 t ADT: 50
Showing 6,351-6,400 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.