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
2ND AVE E
GoodOver: UNNAMED CR
W OF 4 ST -ANDALUSIA, Rock Island, IL
Built 1987 Load: 43.7 t ADT: 10
FAP 332-US 45 (SB)
GoodOver: STREAM
1 MI SW ELDORADO, Saline, IL
Built 2002 Load: 43.7 t ADT: 9,550
FAP 332-US 45 (NB)
GoodOver: STREAM
1 MI SW ELDORADO, Saline, IL
Built 2002 Load: 43.7 t ADT: 9,550
FAS 898 HARCO ROAD
GoodOver: STREAM
0.5 MI S OF HARCO, Saline, IL
Built 1986 Load: 43.7 t ADT: 1,250
FAS 635
GoodOver: CLEAR CREEK
COUNTY-MECHANICSBURG, Sangamon, IL
Built 1974 Load: 43.7 t ADT: 1,500
CH 28 N PAWNEE RD
GoodOver: BRUSH CREEK
3.0 MI W NEW CITY, Sangamon, IL
Built 1961 Load: 43.7 t ADT: 1,050
TR 384
GoodOver: Wolf Creek
0.29 mi E FAS 633, Sangamon, IL
Built 2019 Load: 43.7 t ADT: 75
ILL 127
GoodOver: TRIB CROOKED CREEK
3.2 MI N JCT ILL 177, Washington, IL
Built 2007 Load: 43.7 t ADT: 2,650
GERMAN CHURCH RD
GoodOver: CREEK
1 MI NE JOHNSTON CIT, Williamson, IL
Built 2019 Load: 43.7 t ADT: 225
JACKSON STREET
GoodOver: UNNAMED STREAM
EAST EDGE PECATONICA, Winnebago, IL
Built 2000 Load: 43.7 t ADT: 750
FAI 70 WB
GoodOver: Trib to Sugar Creek
0.21 E OF CO LN, Bond, IL
Built 1965 Load: 44.1 t ADT: 13,450
CH 11
GoodOver: SHOAL CK
2M SE POCAHONTAS, Bond, IL
Built 1977 Load: 44.1 t ADT: 125
IL 92 FAP 587
GoodOver: BR. OF MASTERS CREEK
1.2 MI. W. VAN ORIN, Bureau, IL
Built 1994 Load: 44.1 t ADT: 650
ILL 96
GoodOver: HOWELL HOLLOW CREEK
8.6 MI N MOZIER, Calhoun, IL
Built 1999 Load: 44.1 t ADT: 700
25TH AVE
GoodOver: ADDISON CREEK
0.9 M S I-290, Cook, IL
Built 2000 Load: 44.1 t ADT: 14,000
I-94 (WB)
GoodOver: Metra & CP Railroad
2 Mi. E. of I-294, Cook, IL
Built 2019 Load: 44.1 t ADT: 23,000
I-94 (WB)
GoodOver: E. Frk. Chicago Rvr.
3 Mi. E. of I-294, Cook, IL
Built 2019 Load: 44.1 t ADT: 27,400
JEFFERSON ST
GoodOver: CREEK
ROBINSON, Crawford, IL
Built 2013 Load: 44.1 t ADT: 950
NO. FIRST STREET
GoodOver: SO BR KISHWAUKEE RIV
0.6 mi. N. of IL 38, DeKalb, IL
Built 2023 Load: 44.1 t ADT: 5,950
US RTE 45
GoodOver: UP RR & CN RR Intchg Tra
TUSCOLA, Douglas, IL
Built 2007 Load: 44.1 t ADT: 2,500
IL 64
GoodOver: IL PRAIRIE PATH
0.41-MI E.OF ILL 59, DuPage, IL
Built 1985 Load: 44.1 t ADT: 31,000
FAS 457 (CH 31)
GoodOver: Dickson Creek
0.9mi W of IL 78/97, Fulton, IL
Built 2017 Load: 44.1 t ADT: 525
TR 208
GoodOver: BEAVER POND
2 MI S NEWHAVEN, Gallatin, IL
Built 1983 Load: 44.1 t ADT: 25
TR 123A
GoodOver: STREAM
1.0 MI W WHITE HALL, Greene, IL
Built 1977 Load: 44.1 t ADT: 175
ILL 47
GoodOver: UNKNOWN CREEK
3.58 M N OF I-55, Grundy, IL
Built 1994 Load: 44.1 t ADT: 3,600
FAP-776 (ILL-242)
GoodOver: STREAM
2 MI N MCLEANSBORO, Hamilton, IL
Built 1990 Load: 44.1 t ADT: 1,550
DANFORTH RD
GoodOver: PRAIRIE CREEK
3.74 M W OF IL 49, Iroquois, IL
Built 1994 Load: 44.1 t ADT: 250
FAP 821 (IL 15)
GoodOver: BIG MUDDY OVERFLOW
7.9 MI E WASH CO LN, Jefferson, IL
Built 2003 Load: 44.1 t ADT: 5,200
US 20
GoodOver: EAKIN CREEK
1.2 M S of I-90, Kane, IL
Built 2019 Load: 44.1 t ADT: 4,900
GRANART ROAD (CH 3
GoodOver: BIG ROCK CREEK
1.0 MI S BIG ROCK, Kane, IL
Built 2005 Load: 44.1 t ADT: 6,250
MAIN ST
GoodOver: BIG ROCK CREEK
0.4 Mi. W. of Needham Rd., Kendall, IL
Built 2020 Load: 44.1 t ADT: 700
CH 29
GoodOver: TRIB TO LITTLERS CRK
NW-36-T9NR2E, Knox, IL
Built 1921 Load: 44.1 t ADT: 100
IL 137 LAKE FRONT
GoodOver: WAUKEGAN RIVER
0.25 M N OF IL 120, Lake, IL
Built 1988 Load: 44.1 t ADT: 5,750
TR 169
GoodOver: LITTLE VERMILLION
N 3850TH E 545, LaSalle, IL
Built 1985 Load: 44.1 t ADT: 125
IL 116 FAP 681
GoodOver: 5 MILE CREEK
0.04 MI W OF IL 47, Livingston, IL
Built 2007 Load: 44.1 t ADT: 1,750
ILL 143
GoodOver: SUGAR FORK CREEK
1.7 M E MARINE, Madison, IL
Built 1939 Load: 44.1 t ADT: 4,450
IL 140
GoodOver: Mid Trib Silver Crk
0.4mi E of IL 4, Madison, IL
Built 1992 Load: 44.1 t ADT: 2,750
STAMPER LN/ MSS 11
GoodOver: ROCKY FORK
1MI NW ALTON, Madison, IL
Built 1967 Load: 44.1 t ADT: 2,150
US 50
GoodOver: BRUBAKER CREEK TRIB
3.6 MI E OF IL 37, Marion, IL
Built 2016 Load: 44.1 t ADT: 3,750
TR 83
GoodOver: Lick Creek
0.55 mi E TR 64, Morgan, IL
Built 2018 Load: 44.1 t ADT: 25
IL 99
GoodOver: MCGEE DRAINAGE DITCH
.1M N IL 104, Pike, IL
Built 1987 Load: 44.1 t ADT: 1,950
ILL 100
GoodOver: HILL CREEK
AT PEARL, Pike, IL
Built 1993 Load: 44.1 t ADT: 300
IL 106
GoodOver: HADLEY CREEK
1.3 MI NW BARRY, Pike, IL
Built 2001 Load: 44.1 t ADT: 1,300
FAS 903
GoodOver: TRIB M FORK SALINE R
2.5 MI SW GALATIA, Saline, IL
Built 1987 Load: 44.1 t ADT: 500
BARTON TRAIL RD
GoodOver: SPOIL BANK DTCH TRIB
1 MI S OF US 45, Saline, IL
Built 2017 Load: 44.1 t ADT: 10
IL 13
GoodOver: E Trib to Doza Creek
0.9MI NW MARISSA, St. Clair, IL
Built 2014 Load: 44.1 t ADT: 3,350
OLD IL 26
GoodOver: W.BR. RICHLAND CREEK
1.5MI. S. WISC. LINE, Stephenson, IL
Built 1999 Load: 44.1 t ADT: 475
FAP 821 (IL 15)
GoodOver: DRY FORK OVERFLOW
1.25MI E SIMS RD, Wayne, IL
Built 2004 Load: 44.1 t ADT: 3,250
SPENSER RD
GoodOver: SUGAR RUN CR
0.2 M E CHERRY HILL, Will, IL
Built 1987 Load: 44.1 t ADT: 1,900
NEW IL 13 (WB)
GoodOver: BANKSTON FORK
1.7 MI W SALINE CO L, Williamson, IL
Built 1990 Load: 44.1 t ADT: 9,000
Showing 24,101-24,150 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 |