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
CH 17, W Frontage
GoodOver: North Br Grant Cr
0.7 M N of Blodgett, Will, IL
Built 2014 Load: 32.4 t ADT: 2,900
Ch 25, Wilm.-Peo.
GoodOver: S Br Frorked Creek
0.5 Mi West of US 45, Will, IL
Built 2014 Load: 32.4 t ADT: 6,000
RIDGE ROAD
GoodOver: MANHATTAN CREEK
0.15 MI N BROWN RD, Will, IL
Built 2012 Load: 32.4 t ADT: 600
OFFNER RD
GoodOver: S BR FORKED CRK
0.04 MI W 80TH AVE, Will, IL
Built 2016 Load: 32.4 t ADT: 250
W. OFFNER ROAD
GoodOver: BLACK WALNUT CREEK
.5 M E Crawford Ave, Will, IL
Built 2012 Load: 32.4 t ADT: 175
RICHTON RD (TR 219
GoodOver: PLUM CREEK
1.4 M E ILL RTE 394, Will, IL
Built 2014 Load: 32.4 t
NEW RIVER ROAD
GoodOver: PRAIRIE CREEK
1 M E. I55(NW WILMGT, Will, IL
Built 1969 Load: 32.4 t ADT: 7,500
GOLFVIEW DRIVE
GoodOver: BR. OF FORKED CREEK
2 MI E. OF US RTE 45, Will, IL
Built 1990 Load: 32.4 t ADT: 125
PRAIRIE GRASS DRIV
GoodOver: DRAINAGE DITCH
1.5 MI E. OF US 45, Will, IL
Built 2005 Load: 32.4 t ADT: 150
PAULING ROAD
GoodOver: BLACK WALNUT CREEK
4.2 MI E OF IL50, Will, IL
Built 1977 Load: 32.4 t ADT: 4,600
CH 62 (BRIGGS ST)
GoodOver: SPRING CREEK
0.5 M N OF US RTE 6, Will, IL
Built 2011 Load: 32.4 t ADT: 7,100
CH 88(WEBER ROAD)
GoodOver: CN RAILROAD
0.2MI S.CATON FARM R, Will, IL
Built 1980 Load: 32.4 t ADT: 21,000
CATON FARM ROAD
GoodOver: DUPAGE RIVER
0.6 MI E.ILL.RT.59, Will, IL
Built 1982 Load: 32.4 t ADT: 22,800
PEOTONE-BEECHER RD
GoodOver: BR OF EXLINE SLOUGH
0.45 MI E OF WESTERN, Will, IL
Built 1989 Load: 32.4 t ADT: 3,650
NAP-PLFD RD
GoodOver: SPRING BROOK
0.2 MI N 95TH ST, Will, IL
Built 1993 Load: 32.4 t ADT: 9,900
SAUK TRAIL
GoodOver: TRIB HICKORY CREEK
APPROX0.5M WOF80THAV, Will, IL
Built 1992 Load: 32.4 t ADT: 2,800
SAUK TRAIL
GoodOver: HICKORY CREEK TRIB A
APPROX0.3MWOFHARLEMA, Will, IL
Built 1992 Load: 32.4 t ADT: 1,700
CENTER ROAD
GoodOver: BR. FORKED CREEK
0.8 M S.MAN-MONEE RD, Will, IL
Built 1993 Load: 32.4 t ADT: 3,400
WILMINGTON-PEOTONE
GoodOver: FORKED CREEK
JUST W.COUGAR RD, Will, IL
Built 1993 Load: 32.4 t ADT: 6,050
WILM-PEOTONE RD
GoodOver: BR OF FORKED CREEK
1.6 M E.CEDAR ROAD, Will, IL
Built 1994 Load: 32.4 t ADT: 5,250
WILTON-CENTER RD
GoodOver: FORKED CREEK
1.5 MI. S OF US-52, Will, IL
Built 1994 Load: 32.4 t ADT: 2,400
191ST ST
GoodOver: UNION DITCH
1.8MI E US-45, Will, IL
Built 1998 Load: 32.4 t ADT: 15,500
S CEDAR RD
GoodOver: BRANCH PRAIRIE CREEK
1.6 MI N US-52, Will, IL
Built 1999 Load: 32.4 t ADT: 6,200
S CEDAR RD
GoodOver: PRAIRIE CREEK
1.45 MI N US-52, Will, IL
Built 1999 Load: 32.4 t ADT: 6,200
FRANCIS RD
GoodOver: MARLEY CREEK
1.5M E CEDAR RD, Will, IL
Built 2003 Load: 32.4 t ADT: 13,400
MILLS RD
GoodOver: SUGAR RUN CREEK
0.20 MI E IL-53, Will, IL
Built 2001 Load: 32.4 t ADT: 2,950
JOLIET RD
GoodOver: ROCK CREEK
0.5 MI E I-57, Will, IL
Built 2001 Load: 32.4 t ADT: 950
ELEVATOR RD
GoodOver: FORKED CREEK TRIB
1 MI E US-52, Will, IL
Built 2001 Load: 32.4 t ADT: 1,000
ELEVATOR RD
GoodOver: FORKED CREEK
1.3 MI N US-52, Will, IL
Built 2002 Load: 32.4 t ADT: 1,000
BRIGGS ST
GoodOver: FRACTION RUN CREEK
.8M SO. OF 167TH, Will, IL
Built 2002 Load: 32.4 t ADT: 8,050
MARLEY ROAD
GoodOver: MARLEY CREEK
.1M E US6, Will, IL
Built 2005 Load: 32.4 t ADT: 8,000
GOUGAR RD
GoodOver: HICKORY CREEK
0.16M N of US30, Will, IL
Built 2003 Load: 32.4 t ADT: 11,900
SCHOOLHOUSE RD
GoodOver: HICKORY CREEK
.5M N of US30, Will, IL
Built 2005 Load: 32.4 t ADT: 12,200
CENTER RD
GoodOver: FORKED CREEK
1.9 S MANH-MONEE RD, Will, IL
Built 2005 Load: 32.4 t ADT: 3,100
INDIANA AV
GoodOver: TRIM CREEK
0.7 MI E of Dixie Hw, Will, IL
Built 2012 Load: 32.4 t ADT: 2,900
CEDAR RD
GoodOver: JACKSON CREEK
1.3 MI S LARAWAY RD, Will, IL
Built 2010 Load: 32.4 t ADT: 6,200
ZILM RD
GoodOver: HORSE CREEK
3.3 M S OF IL113, Will, IL
Built 2005 Load: 32.4 t ADT: 1,050
EXCHANGE ST.
GoodOver: PLUM CREEK
.5M E OF IL394, Will, IL
Built 2003 Load: 32.4 t ADT: 15,600
191ST ST
GoodOver: FLOSSMOOR DD
.2M W OF IL43, Will, IL
Built 2005 Load: 32.4 t ADT: 8,000
COUNTY LINE RD
GoodOver: TRIM CRK
1M W OF IL1, Will, IL
Built 2005 Load: 32.4 t ADT: 2,400
COUNTY LINE RD
GoodOver: EXLINE SLOUGH
4.4M W OF IL1, Will, IL
Built 2004 Load: 32.4 t ADT: 2,650
ARSENAL RD
GoodOver: BNSF RR & JACKSON CR
1.3M E OF I55, Will, IL
Built 2005 Load: 32.4 t ADT: 11,000
MANHATTAN ARSENAL
GoodOver: JACKSON CREEK
.9M W OF IL53, Will, IL
Built 2007 Load: 32.4 t ADT: 4,100
MANHATTAN-MONEE RD
GoodOver: FORKED CK. TRIB
3.3 MI E US 45, Will, IL
Built 1988 Load: 32.4 t ADT: 5,500
WESTERN AVE.
GoodOver: DEER CREEK
645 FT N OF EXCHANGE, Will, IL
Built 1982 Load: 32.4 t ADT: 11,500
CH58
GoodOver: BULL CREEK
2.5M. E OF IL RTE 1, Will, IL
Built 2011 Load: 32.4 t ADT: 1,200
WESTERN AVE
GoodOver: DEER CREEK
JUST NO OF EXCHANGE, Will, IL
Built 1982 Load: 32.4 t ADT: 11,500
CH 74 (LARAWAY RD)
GoodOver: W BR HICKORY CREEK
0.7 MI W HARLEM AVE, Will, IL
Built 2016 Load: 32.4 t ADT: 8,500
119 TH STREET
GoodOver: DUPAGE RIVER
1.1 MI E IL 59, Will, IL
Built 1983 Load: 32.4 t ADT: 8,950
135TH STREET
GoodOver: DUPAGE RIVER
0.6 MI E ILL 59, Will, IL
Built 1986 Load: 32.4 t ADT: 8,550
Showing 21,651-21,700 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 |