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
IL 4
GoodOver: HONEY CREEK
6M S IL108-CARLINVIL, Macoupin, IL
Built 2007 Load: 49.6 t ADT: 2,050
SHIPMAN BLKTP
GoodOver: COOPS CR
2.6 M N OF IL 16, Macoupin, IL
Built 2017 Load: 49.6 t ADT: 1,350
US 50
GoodOver: SKILLET FORK CREEK
2 MI E CLAY CO LN, Marion, IL
Built 2007 Load: 49.6 t ADT: 2,550
CH 5 Marshall Crk
GoodOver: Jim's Creek
4 Mi SE of Patoka, Marion, IL
Built 2018 Load: 49.6 t ADT: 175
TR 16 (TH-R63)
GoodOver: CROW CREEK
T13N-R8E-4PM SEC 2, Marshall, IL
Built 2019 Load: 49.6 t ADT: 25
I-39/US 51 NB
GoodOver: SIX MILE CREEK
3.91 MI N OF I-55, McLean, IL
Built 1989 Load: 49.6 t ADT: 8,650
IL 128 (FAP 770)
GoodOver: BRUSH CREEK
4 MI W OF BETHANY, Moultrie, IL
Built 2009 Load: 49.6 t ADT: 1,950
IL 104
GoodOver: BROWER CR
5 M W OF IL 107, Pike, IL
Built 2015 Load: 49.6 t ADT: 775
IL 104
GoodOver: LIEHR CREEK
.9 M W OF IL 107, Pike, IL
Built 2012 Load: 49.6 t ADT: 775
207TH ST
GoodOver: DRAINAGE DITCH
3 MI S RAPIDS CITY, Rock Island, IL
Built 1986 Load: 49.6 t ADT: 25
ILL 161
GoodOver: ASH CREEK
2.7MI W ILL 4, St. Clair, IL
Built 1932 Load: 49.6 t ADT: 5,900
NB I-155
GoodOver: INDIAN CR
.5MI S 155&122 INT, Tazewell, IL
Built 2023 Load: 49.6 t ADT: 5,900
I-74 (WB)
GoodOver: SALT FORK VERM RIVER
W OF DANVILLE, Vermilion, IL
Built 1962 Load: 49.6 t ADT: 10,600
OLD US 67
GoodOver: HENDERSON CREEK
3 MI S OF MONMOUTH, Warren, IL
Built 1991 Load: 49.6 t ADT: 50
IL 160
GoodOver: PLUM CREEK
2.7MI W ADDIEVILLE, Washington, IL
Built 2009 Load: 49.6 t ADT: 950
MATERIAL AVE.
GoodOver: LOVES PARK CREEK
0.3 MI. S. WINDSOR, Winnebago, IL
Built 1992 Load: 49.6 t ADT: 2,300
TOWNSHIP RD 60 B
GoodOver: SMITH DITCH
3.5 MI. NW SHEFFIELD, Bureau, IL
Built 2018 Load: 49.9 t ADT: 75
FAS 754
GoodOver: ARNOLD CREEK
0.8 MI SE OF BRUSSLS, Calhoun, IL
Built 1984 Load: 49.9 t ADT: 1,150
CH 21(FAS 502)
GoodOver: STREAM
AT I-57 N CHAMPAIGN, Champaign, IL
Built 2016 Load: 49.9 t ADT: 2,750
ILL 104
GoodOver: PANTHER CREEK
.5M W IL 29, Christian, IL
Built 1995 Load: 49.9 t ADT: 4,800
WENTWORTH AVE
GoodOver: LITTLE CALUMET RIVER
0.8 M S Rivr Oaks Dr, Cook, IL
Built 2004 Load: 49.9 t ADT: 7,650
King Arthur Court
GoodOver: ADDISON CREEK
0.15 MI N FULLERTON, Cook, IL
Built 1991 Load: 49.9 t ADT: 2,800
IL 10 (FAP 721)
GoodOver: STREAM
0.75 MI E OF IL 48, De Witt, IL
Built 2008 Load: 49.9 t ADT: 1,800
US 34
GoodOver: LITTLE ROCK CREEK
1.1 MI E DEKALB CO., DeKalb, IL
Built 2004 Load: 49.9 t ADT: 11,600
TR 78
GoodOver: RACCOON CREEK
4 MI SW VANDALIA, Fayette, IL
Built 2023 Load: 49.9 t ADT: 150
FAP-776 (ILL-242)
GoodOver: BIG CREEK
6 MI S WAYNE CO LN, Hamilton, IL
Built 2012 Load: 49.9 t ADT: 1,250
FAS 694
GoodOver: Trib to Muddy Creek
1.5 MI N OF SUMNER, Lawrence, IL
Built 2023 Load: 49.9 t ADT: 950
IL ROUTE 26
GoodOver: DITCH
2.25 MI S AMBOY RD, Lee, IL
Built 2012 Load: 49.9 t ADT: 1,500
FAS-185 (CH-14)
GoodOver: Branch of Main Ditch
6 MILES W OF AMBOY, Lee, IL
Built 2018 Load: 49.9 t ADT: 475
1842nd Av(TR 268)
GoodOver: Local Drainage
1.3 mi S IL 121, Logan, IL
Built 2019 Load: 49.9 t ADT: 50
TR 234
GoodOver: SILVER CK
2.5 MI NE TROY, Madison, IL
Built 1975 Load: 49.9 t ADT: 400
TR 123
GoodOver: TRIB TO SILVER CK
5 MI NW ALHAMBRA, Madison, IL
Built 1980 Load: 49.9 t ADT: 75
FAS 294/OLD 66A NB
GoodOver: MACKINAW RIVER
8.45 MI S OF US 24, McLean, IL
Built 1954 Load: 49.9 t ADT: 2,300
IL 185
GoodOver: EAST FORK SHOAL CR.
1.95M E COFFEEN CTR, Montgomery, IL
Built 2006 Load: 49.9 t ADT: 1,450
IL 154
GoodOver: W TRIB TO PLUM CREEK
2.3M EAST OF BALDWIN, Randolph, IL
Built 2002 Load: 49.9 t ADT: 2,950
TR 129A
GoodOver: COAL CREEK
3 MI SE COAL VALLEY, Rock Island, IL
Built 2014 Load: 49.9 t ADT: 250
TR 380
GoodOver: SUGAR CREEK
1.0E OF CLEAR LAKE, Sangamon, IL
Built 1963 Load: 49.9 t ADT: 350
TR-52
GoodOver: TRIB S FORK LICK CK
3.5 MI NW LOWDER, Sangamon, IL
Built 2001 Load: 49.9 t ADT: 50
TR 112
GoodOver: Flat Branch Trib
4.8 MI SE MOWEAQUA, Shelby, IL
Built 2021 Load: 49.9 t ADT: 25
IL 15 EB
GoodOver: ICRR
1.3 mi E of IL 159, St. Clair, IL
Built 2015 Load: 49.9 t ADT: 12,500
Lebanon Rd /FAU 91
GoodOver: SCHOENBERGER CREEK
0.1 M W ILL 161, St. Clair, IL
Built 1978 Load: 49.9 t ADT: 3,100
US 52
GoodOver: JACKSON CREEK
5.5 M SE OF IL 53, Will, IL
Built 1916 Load: 49.9 t ADT: 9,150
Royce Road
GoodOver: Ditch
0.25 MI W of IL 53, Will, IL
Built 2020 Load: 49.9 t ADT: 6,350
TR 251
GoodOver: TWO MILE SLOUGH
2.9 MI NE SADORUS, Champaign, IL
Built 2021 Load: 50.2 t ADT: 100
US 41 (LINCOLN AVE
GoodOver: N SHORE CHANNEL
0.2 M NW US 14, Cook, IL
Built 1935 Load: 50.2 t ADT: 30,100
WOLF ROAD
GoodOver: SALT CREEK
.4 M N US-34, Cook, IL
Built 1998 Load: 50.2 t ADT: 16,000
CARRIAGE WAY DR
GoodOver: SALT CREEK
0.2 S 62/0.7 E 53, Cook, IL
Built 1970 Load: 50.2 t ADT: 1,100
SUNSET DR
GoodOver: LITTLE CRAB ORCHARD
CARBONDALE, Jackson, IL
Built 2020 Load: 50.2 t ADT: 2,000
ILL 84
GoodOver: IRISH HOLLOW CREEK
2.3 MI S US 20, Jo Daviess, IL
Built 1984 Load: 50.2 t ADT: 1,800
IL 146
GoodOver: BAY CREEK
EAST OF GRANTSBURG, Johnson, IL
Built 2015 Load: 50.2 t ADT: 1,300
Showing 24,751-24,800 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 |