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
FAS 2936 (UNMARKED
GoodOver: TRIB TO HESS BAYOU
NEAR NCL MOUNDS, Pulaski, IL
Built 1993 Load: 54.8 t ADT: 2,300
FAP 116
GoodOver: TURKEY CREEK
0.5 MI SO CALHOUN RD, Richland, IL
Built 2017 Load: 54.8 t ADT: 4,050
IL 142
GoodOver: INDIAN CREEK
3 MI N OF ELDORADO, Saline, IL
Built 2022 Load: 54.8 t ADT: 2,200
FAP 840(IL 49)
GoodOver: FAST CREEK
S EDGE OF RANKIN, Vermilion, IL
Built 1978 Load: 54.8 t ADT: 1,100
IL 148-FAP 726
GoodOver: WOLF CREEK
1.5 MI N FAS 1900, Williamson, IL
Built 2001 Load: 54.8 t ADT: 6,150
LIMB BRANCH LANE
GoodOver: LIMB BRANCH CREEK
1.5 MI S MARION, Williamson, IL
Built 2021 Load: 54.8 t ADT: 100
TR47
GoodOver: HALLENBACK CREEK
1.5 Mi W IL 117, Woodford, IL
Built 2020 Load: 54.8 t ADT: 50
PARK ST IN HARDIN
GoodOver: GESKE HOLLOW CREEK
S OF JOE PAGE BRIDGE, Calhoun, IL
Built 2006 Load: 55.1 t ADT: 3,250
HARTS RD
GoodOver: N BR CHICAGO RIVER
0.1 M NE IL 21, Cook, IL
Built 1930 Load: 55.1 t ADT: 5,600
FAP 776(ILL-242)
GoodOver: AUXIER CREEK
1.3 MI S WAYNE CO LN, Hamilton, IL
Built 1997 Load: 55.1 t ADT: 1,250
ILL. 34
GoodOver: HICKS BRANCH
4.4 MI S OF HEROD, Hardin, IL
Built 1978 Load: 55.1 t ADT: 1,200
FAS 263 CH 5
GoodOver: VERMILION RIVER
N 18TH,E 1350, LaSalle, IL
Built 2021 Load: 55.1 t ADT: 800
IL 47
GoodOver: 5 MI. CREEK
.89 M S IL 116, Livingston, IL
Built 1993 Load: 55.1 t ADT: 2,100
IL 143
GoodOver: SUGAR CREEK
1MI W OF PIERRON, Madison, IL
Built 2014 Load: 55.1 t ADT: 2,750
TR 221 A
GoodOver: LITTLE CROOKED CREEK
1.0 MI S COOKSVILLE, McLean, IL
Built 2011 Load: 55.1 t ADT: 50
FAP 885 (ILL 146)
GoodOver: SIMMONS CREEK
4.3 MI SW HARDIN CO, Pope, IL
Built 2012 Load: 55.1 t ADT: 1,050
US 45
GoodOver: STREAM
SACRAMENTO, White, IL
Built 2018 Load: 55.1 t ADT: 1,500
ILL 127
GoodOver: LITTLE BEAVER CREEK
4.2mi S of I-70, Bond, IL
Built 1980 Load: 55.4 t ADT: 3,350
IL 160
GoodOver: BRANCH LAKE CREEK
2.2 M S TRENTON US50, Clinton, IL
Built 2012 Load: 55.4 t ADT: 4,750
CHICAGO RD
GoodOver: THORN CREEK TRIB
.03 M N IL 1 CUTOFF, Cook, IL
Built 2020 Load: 55.4 t ADT: 5,000
IL 64
GoodOver: DES PLAINES RIVER
1 M W OF IL 43, Cook, IL
Built 2014 Load: 55.4 t ADT: 41,200
IL 10 (FAP 717)
GoodOver: CREEK
.5 MI W CLINTON, De Witt, IL
Built 2007 Load: 55.4 t ADT: 2,150
KESLINGER RD
GoodOver: WELCH CR.
.75MI W OF IL RTE 47, Kane, IL
Built 2010 Load: 55.4 t ADT: 5,050
TR 498
GoodOver: BR MACOUPIN CR
4.0 MI E STANDARD CY, Macoupin, IL
Built 1925 Load: 55.4 t ADT: 35
BRIMFIELD-JUBILEE
GoodOver: BR KICKAPOO CREEK
SE 18-JUBILEE TWP, Peoria, IL
Built 1968 Load: 55.4 t ADT: 475
FRENCH GROVE CEM R
GoodOver: FRENCH CREEK
SE-32-T11NR5E, Peoria, IL
Built 1977 Load: 55.4 t ADT: 10
IL 73
GoodOver: TRIB. YELLOW CREEK
PEARL CITY, Stephenson, IL
Built 2002 Load: 55.4 t ADT: 2,850
FAU-1637 StuenkelR
GoodOver: East Br Hickory Cr
0.2M W Central Av., Will, IL
Built 2015 Load: 55.4 t ADT: 4,725
SPRING CREEK ROAD
GoodOver: SPRING CREEK
EAST OF ALPINE RAOD, Winnebago, IL
Built 2001 Load: 55.4 t ADT: 21,000
SBI 11
GoodOver: QUARRY BRANCH
.7 MI E OF CASEY, Clark, IL
Built 1982 Load: 55.7 t ADT: 1,300
IL 68 (DUNDEE RD)
GoodOver: M FK N BR CHGO RIV
0.8 M E IL 43, Cook, IL
Built 2019 Load: 55.7 t ADT: 23,100
WILLOW RD
GoodOver: M F N BR Chicago Riv
1.0 M E of IL 43, Cook, IL
Built 2013 Load: 55.7 t ADT: 28,400
TR 9 AIRPORT ROAD
GoodOver: SARATOGA CREEK
0.32 MI W MIDDLE RD, Grundy, IL
Built 1984 Load: 55.7 t ADT: 125
FAS 1774 {OLD 121}
GoodOver: KIKAPOO CREEK
3 MILE NORTH LINCOLN, Logan, IL
Built 2006 Load: 55.7 t ADT: 1,700
I-155
GoodOver: TRIB SUGAR CREEK
1.5M NW I-55, Logan, IL
Built 1986 Load: 55.7 t ADT: 10,600
TR 39(FRTG RD WEST
GoodOver: SANDY CREEK
2.60 MI S OF ILL 18, Marshall, IL
Built 1990 Load: 55.7 t ADT: 50
NEW IL 13
GoodOver: TRIB W H'BURG DITCH
0.25 E OF LOVERS LA, Saline, IL
Built 1996 Load: 55.7 t ADT: 7,350
SECOND STREET
GoodOver: I&M CANAL
0.15 M W OF IL 171, Will, IL
Built 2017 Load: 55.7 t ADT: 675
OLDE CREEK RD
GoodOver: KEITH CREEK
0.2 MI E PERRYVILLE, Winnebago, IL
Built 2003 Load: 55.7 t ADT: 6,200
CH 48
GoodOver: CURL CREEK
4.7 MI NE LIBERTY, Adams, IL
Built 1959 Load: 56.1 t ADT: 850
IL 29 SB
GoodOver: CLEAR CREEK
0.9 MI NW SHARPSBURG, Christian, IL
Built 2005 Load: 56.1 t ADT: 8,550
TR 122 Pipeline Rd
GoodOver: Stone Quarry Creek
2.3 Mi SE Beckemeyer, Clinton, IL
Built 2021 Load: 56.1 t ADT: 375
IL 115
GoodOver: DRAINAGE DITCH
2.4 MI N OF IL 116, Ford, IL
Built 2010 Load: 56.1 t ADT: 650
Daniel Boulevard
GoodOver: Dittman Ditch
3200 west of Reinking Rd, Kane, IL
Built 2019 Load: 56.1 t ADT: 650
US 150
GoodOver: S. HENDERSON CR TRIB
3 MI N OF US 34, Knox, IL
Built 2003 Load: 56.1 t ADT: 2,950
TR 76
GoodOver: TRIB TO HENDERSON CK
SE-26-T13NR1E, Knox, IL
Built 2021 Load: 56.1 t ADT: 25
FAS 548 (CH 38)
GoodOver: FRIENDS CREEK
4.9 ME NE ARGENTA, Macon, IL
Built 2022 Load: 56.1 t ADT: 250
US 51 NB (FAP 322)
GoodOver: FULTON CREEK
CENTRALIA, Marion, IL
Built 1960 Load: 56.1 t ADT: 3,450
IL 31
GoodOver: CRYSTAL CREEK
0.1 M S Algonquin Rd, McHenry, IL
Built 2013 Load: 56.1 t ADT: 17,900
RANDALL ROAD
GoodOver: WOODS CREEK
0.3 M S OF MILLER RD, McHenry, IL
Built 1969 Load: 56.1 t ADT: 28,800
Showing 25,051-25,100 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 |