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
TR 367
GoodOver: BRUSH CREEK
3.4 MI NW STEWARDSON, Shelby, IL
Built 2020 Load: 46.7 t ADT: 75
IL 161 NORTHBOUND
GoodOver: SCHOENBERGER CREEK
1MI SO. ST CLAIR AVE, St. Clair, IL
Built 2007 Load: 46.7 t ADT: 14,800
IL 161 SOUTHBOUND
GoodOver: SCHOENBERGER CREEK
IMI SO. ST CLAIR AVE, St. Clair, IL
Built 2007 Load: 46.7 t ADT: 14,800
FAI 255
GoodOver: HILL CREEK
1.5 MI S OF DUPO, St. Clair, IL
Built 1979 Load: 46.7 t ADT: 41,000
MSS 6035
GoodOver: HILL CREEK
1.5 M SO OF DUPO, St. Clair, IL
Built 1979 Load: 46.7 t ADT: 125
CH-7 (FAS 1481)
GoodOver: DILLON CREEK
NE-4-T23NR4W, Tazewell, IL
Built 2008 Load: 46.7 t ADT: 1,500
ILL 153
GoodOver: MUD CREEK
2 M N CO LINE, Washington, IL
Built 1932 Load: 46.7 t ADT: 1,250
IL 394 SB
GoodOver: PLUM CREEK
9.2 M S OF US 30, Will, IL
Built 1932 Load: 46.7 t ADT: 10,600
PRAIRIE HILL RD
GoodOver: DRY CREEK RUN
AT WILLOWBROOK RD, Winnebago, IL
Built 2007 Load: 46.7 t ADT: 4,050
TR156 Dudleyville
GoodOver: Little Beaver Creek
2 Mi S of Dudleyvill, Bond, IL
Built 2013 Load: 47.0 t ADT: 200
TR 179
GoodOver: Hurricane Creek
3 Mi. S Wendelin, Clay, IL
Built 2019 Load: 47.0 t ADT: 50
FAS 787 Boulder Rd
GoodOver: Gibbs Creek
1.5 Mi S of Boulder, Clinton, IL
Built 2021 Load: 47.0 t ADT: 400
70TH PLACE
GoodOver: FLAG CREEK
1.5 M W US 45, Cook, IL
Built 1963 Load: 47.0 t ADT: 150
IL 83/US6 TORRENC
GoodOver: LITTLE CAL RIVER
0.43 M S OF 159TH ST, Cook, IL
Built 2019 Load: 47.0 t ADT: 20,900
PRATER AVE
GoodOver: ADDISON CR
0.1 M N NORTH P9, Cook, IL
Built 1965 Load: 47.0 t ADT: 500
FAP 323(US 36)
GoodOver: BRUSHY FORK RIVER
E EDGE OF NEWMAN, Douglas, IL
Built 1990 Load: 47.0 t ADT: 2,250
TR-14
GoodOver: BEECH CREEK
3.5 MI N ALTAMONT, Effingham, IL
Built 1982 Load: 47.0 t ADT: 75
TR-256
GoodOver: RICHLAND CREEK
1065N 1100E, Fayette, IL
Built 1990 Load: 47.0 t ADT: 100
TR 571B
GoodOver: TRIB NORTH FORK
6 MI W FARINA, Fayette, IL
Built 2022 Load: 47.0 t ADT: 100
CH 2/FAS 224
GoodOver: ELK CREEK
2.5 MI N GENESEO, Henry, IL
Built 1980 Load: 47.0 t ADT: 4,850
FAS 334 CH-9
GoodOver: SUGAR CREEK
1.42 MI W OF ILL 1, Iroquois, IL
Built 1984 Load: 47.0 t ADT: 1,000
BIG TIMBER RD
GoodOver: TYLER & PINGREE CR
.8 M SE OF IL 72, Kane, IL
Built 2012 Load: 47.0 t ADT: 6,300
IL 83
GoodOver: KILDEER CREEK
0.25 M S OF IL 22, Lake, IL
Built 1993 Load: 47.0 t ADT: 40,800
ILL 178
GoodOver: ILLINOIS RIVER
2.2 MI S OF US 6, LaSalle, IL
Built 2020 Load: 47.0 t ADT: 3,200
IL 116
GoodOver: Rooks Creek
2.68 M W of I-55, Livingston, IL
Built 2020 Load: 47.0 t ADT: 3,050
TR 240
GoodOver: LAKE FORK CK
4.5 S 1 MI E MT PLSK, Logan, IL
Built 1964 Load: 47.0 t ADT: 50
POAG ROAD/FAU 8877
GoodOver: MCT Goshen Trail
1 M W IL 157, Madison, IL
Built 1966 Load: 47.0 t ADT: 4,100
FAS 2792
GoodOver: NORTH FORK CREEK
4.5 MI N ALMA, Marion, IL
Built 2006 Load: 47.0 t ADT: 50
US 150
GoodOver: KICKAPOO CREEK
DOWNS-NW OF, McLean, IL
Built 2009 Load: 47.0 t ADT: 6,750
FELL AVE
GoodOver: SUGAR CR
200 FT N OF KELSEY, McLean, IL
Built 2005 Load: 47.0 t ADT: 2,000
FAS 1746A(CH 9)
GoodOver: E Fork Shoal Creek
0.04 W TR 447, Montgomery, IL
Built 2023 Load: 47.0 t ADT: 300
US 67 SB
GoodOver: NORFOLK SOUTHERN RR
4.5M N US67/I72/US36, Morgan, IL
Built 1998 Load: 47.0 t ADT: 5,450
US 67 SB
GoodOver: SANDY CREEK
0.50 MI S I 72/US 36, Morgan, IL
Built 2004 Load: 47.0 t ADT: 5,200
US 67 NB
GoodOver: SANDY CREEK
0.50 MI S I 72/US 36, Morgan, IL
Built 2004 Load: 47.0 t ADT: 5,200
FAS 1042 - IL 251
GoodOver: DRAINAGE DITCH
E. EDGE DAVIS JCT., Ogle, IL
Built 1991 Load: 47.0 t ADT: 3,400
STREITMATTER RD
GoodOver: STREAM
SECOR,SE-4-HALLOCK, Peoria, IL
Built 1984 Load: 47.0 t ADT: 75
ILL 106
GoodOver: EAST BRN KISER CREEK
5.5MI SE BARRY, Pike, IL
Built 1994 Load: 47.0 t ADT: 1,600
I-72
GoodOver: DRAINAGE DITCH
1.03 mi E IL 96, Pike, IL
Built 1988 Load: 47.0 t ADT: 9,410
IL 4
GoodOver: POLECAT CREEK
.2 S OF PLUMMER CHTM, Sangamon, IL
Built 2011 Load: 47.0 t ADT: 16,500
IL 106
GoodOver: SANDY CREEK
2 M SE WINCHESTER, Scott, IL
Built 2011 Load: 47.0 t ADT: 1,300
FAI 72 RAMP A
GoodOver: DRAINAGE DITCH
I-72 & IL 100 INT, Scott, IL
Built 1981 Load: 47.0 t ADT: 550
TR 186
GoodOver: Little Swan Creek
4 MI West of Avon, Warren, IL
Built 2022 Load: 47.0 t ADT: 125
IL 171
GoodOver: FRACTION RUN CREEK
1.3 M S IL 7, Will, IL
Built 1994 Load: 47.0 t ADT: 10,500
TRAINER ROAD
GoodOver: SPRING CREEK
.25 MI N. OF SPRING BROOK, Winnebago, IL
Built 1991 Load: 47.0 t ADT: 1,100
PORTER ROAD
GoodOver: BR KENT CREEK
.33 M E MERIDIAN RD, Winnebago, IL
Built 1979 Load: 47.0 t ADT: 525
FAS 432 (CH 14)
GoodOver: Br of South Fork Ck
3.4 MI SE LaPrairie, Adams, IL
Built 2021 Load: 47.3 t ADT: 275
CH 18(FAS 528)
GoodOver: EMBARRAS RIVER
2.3 MI E OF US 45, Champaign, IL
Built 2019 Load: 47.3 t ADT: 2,900
I-90 EB
GoodOver: U.P. RR
2.1 Mi E. Ill Rte 83, Cook, IL
Built 2015 Load: 47.3 t ADT: 160,700
IL 121 (FAP 773)
GoodOver: MULE CREEK
1.7 MI E MONTROSE RD, Cumberland, IL
Built 2010 Load: 47.3 t ADT: 1,600
FAP322/US 51
GoodOver: STEVE CREEK
8 MI S US 40, Fayette, IL
Built 2006 Load: 47.3 t ADT: 2,900
Showing 24,451-24,500 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 |