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 1583
GoodOver: LOGAN CREEK
1 MI SO RIPLEY, Brown, IL
Built 1905 Load: 52.2 t ADT: 225
IL 78
GoodOver: TRIB. E. PLUM RIVER
1.5 MI S JO DAVIESS, Carroll, IL
Built 1993 Load: 52.2 t ADT: 625
IL 48 FAP 714
GoodOver: TRIB TO BUCKHART CR
.3 M E STONINGTON, Christian, IL
Built 2007 Load: 52.2 t ADT: 3,600
US 34 (FAP 591)
GoodOver: SOMONAUK CREEK
1.1 MI. W. SANDWICH, DeKalb, IL
Built 1991 Load: 52.2 t ADT: 4,700
IL 96
GoodOver: DRAINAGE DITCH
3.3M E NAUVOO CENTER, Hancock, IL
Built 1997 Load: 52.2 t ADT: 1,250
GRANGE RD
GoodOver: BIG SLOUGH DITCH
1.2 MI. S. OF IL 92, Henry, IL
Built 1999 Load: 52.2 t ADT: 275
RURAL STREET
GoodOver: INDIAN CREEK
0.41 MI E OHIO ST, Kane, IL
Built 2019 Load: 52.2 t ADT: 1,500
TR 220
GoodOver: LITTLE BEAVER CR
2 MI SE OF ST ANNE, Kankakee, IL
Built 1974 Load: 52.2 t ADT: 75
CATON FARM ROAD
GoodOver: Little Slough Creek
CH23 OVR Little Slough Ck, Kendall, IL
Built 2021 Load: 52.2 t ADT: 2,150
US 51,I-39
GoodOver: STREAM
4.01 MI N OF ILL 18, LaSalle, IL
Built 1988 Load: 52.2 t ADT: 19,400
US 51(FAP 322)
GoodOver: STEVENS CREEK
2.5 MI S OF MAROA, Macon, IL
Built 1971 Load: 52.2 t ADT: 12,000
MOUND RD(FAU 7359)
GoodOver: SPRING CREEK
EAST MOUND RD, Macon, IL
Built 1964 Load: 52.2 t ADT: 9,350
CH 18 (School Rd)
GoodOver: Ditch
4.4 Mi. NE Argenta, Macon, IL
Built 2020 Load: 52.2 t ADT: 100
TR 1A Lake Fork Rd
GoodOver: Ditch
5.2 Miles N Argenta, Macon, IL
Built 2020 Load: 52.2 t ADT: 25
IL 143
GoodOver: NSRR
ALTON EAST OF CLARK, Madison, IL
Built 1995 Load: 52.2 t ADT: 9,300
LEBANON RD/FAU 912
GoodOver: CANTEEN CREEK
.17 W. TR 361, Madison, IL
Built 2003 Load: 52.2 t ADT: 1,750
FAS 294/OLD 66A
GoodOver: TURKEY CREEK
5.79 MI S OF US 24, McLean, IL
Built 2015 Load: 52.2 t ADT: 2,050
FAS 491 CH 15
GoodOver: North Fork, Salt Cre
4 miles NE LeRoy, McLean, IL
Built 2018 Load: 52.2 t ADT: 200
FAS 2599
GoodOver: PIGEON CREEK
2.6M W IL 96, Pike, IL
Built 1994 Load: 52.2 t ADT: 350
IL 106
GoodOver: WALNUT CREEK
2.1 M W OF IL 96, Pike, IL
Built 2008 Load: 52.2 t ADT: 1,350
TR 207 - Blair Roa
GoodOver: Little Mary's River
2 Mi E of Blair, Randolph, IL
Built 2018 Load: 52.2 t ADT: 75
ILL 34
GoodOver: Spring Valley Creek
0.2 mi w of Rudement, Saline, IL
Built 2017 Load: 52.2 t ADT: 2,050
TR 295
GoodOver: BRANCH OF LICK CREEK
2.0 NW OF CHATHAM, Sangamon, IL
Built 1974 Load: 52.2 t ADT: 600
ILL 100
GoodOver: ELM CREEK
2MI S BLUFFS, Scott, IL
Built 1988 Load: 52.2 t ADT: 1,350
TR 47
GoodOver: BR HEND CR
N.CTR-29-T12NR2W, Warren, IL
Built 1980 Load: 52.2 t ADT: 25
US 45
GoodOver: SOUTHERN OUTLET
2.5 M S. MILL SHOALS, White, IL
Built 2012 Load: 52.2 t ADT: 1,600
MS-8810 Inter. Blv
GoodOver: Spring Creek
.5MI N RIVERSIDE BLV, Winnebago, IL
Built 2016 Load: 52.2 t ADT: 1,700
FAI 172
GoodOver: FALL CREEK
1.0 M S IL 57, Adams, IL
Built 1982 Load: 52.5 t ADT: 13,100
I-70 EB
GoodOver: CSXRR
5.9 MI E POCAHONTAS, Bond, IL
Built 1967 Load: 52.5 t ADT: 12,050
IL 58
GoodOver: DES PLAINES RIVER
0.1 M E US 45, Cook, IL
Built 2004 Load: 52.5 t ADT: 21,000
US RTE 45
GoodOver: UPRR & Decatur&Estrn ILR
TUSCOLA, Douglas, IL
Built 2007 Load: 52.5 t ADT: 2,500
IL 133 (FAP 749)
GoodOver: DRAINAGE DITCH #7
5.0 MI W OF PARIS, Edgar, IL
Built 2012 Load: 52.5 t ADT: 2,100
US 24/ IL 78
GoodOver: LITTLE SISTER CR
1.3 MI SW IL 78 WYE, Fulton, IL
Built 2014 Load: 52.5 t ADT: 3,750
DAUBERMAN ROAD
GoodOver: WELCH CREEK
0.5 Mi N. OF US 30, Kane, IL
Built 1975 Load: 52.5 t ADT: 1,050
IL 17
GoodOver: E Branch of Horse Cr
0.2M E ofHerscher Rd, Kankakee, IL
Built 2022 Load: 52.5 t ADT: 3,650
Hart Road (FAU 254
GoodOver: Flint Creek Trib
0.3 MI N LAKE-COOK R, Lake, IL
Built 2022 Load: 52.5 t ADT: 7,600
I-88 EB
GoodOver: CNW RR
.6 MI W OF NELSON RD, Lee, IL
Built 1974 Load: 52.5 t ADT: 7,850
TR 97 (2200)
GoodOver: DEER CREEK
2200 N, 1627E, Livingston, IL
Built 2019 Load: 52.5 t ADT: 100
US 67
GoodOver: SO BR PIASA CREEK
1.3MI S JERSEY CO LN, Madison, IL
Built 1988 Load: 52.5 t ADT: 11,200
I 24
GoodOver: E FORK GURLEY DITCH
4.5 MI S JOHNSON CO, Massac, IL
Built 1971 Load: 52.5 t ADT: 21,200
US 67
GoodOver: Bluff Creek
1.8 mi N IL 100, Schuyler, IL
Built 2022 Load: 52.5 t ADT: 3,400
FAI 64
GoodOver: Brooms Run
0.63 E ILL 4, St. Clair, IL
Built 1972 Load: 52.5 t ADT: 34,900
SAUGET BUSINESS BL
GoodOver: GOOSE LAKE DITCH
.7 MI NW I 255, St. Clair, IL
Built 2011 Load: 52.5 t ADT: 6,650
ILL 98
GoodOver: LICK CREEK
2.5 MI W OF MORTON, Tazewell, IL
Built 2007 Load: 52.5 t ADT: 3,650
FAS 470 - CH 6
GoodOver: MACKINAW R OVERFLOW
W.CTR-8-T24NR2W, Tazewell, IL
Built 1999 Load: 52.5 t ADT: 3,750
MANHATTAN MONEE RD
GoodOver: TRIB TO PRAIRIE CRK
2.7 M W OF US 45, Will, IL
Built 1974 Load: 52.5 t ADT: 4,200
IL 59, US 30
GoodOver: NORMAN DRAIN
0.06 M S 143RD ST., Will, IL
Built 2000 Load: 52.5 t ADT: 32,100
US 20 (LAKE ST)
GoodOver: WESTWOOD CREEK
0.60 M NW ADDISON RD, DuPage, IL
Built 2006 Load: 52.8 t ADT: 28,400
WEST CENTER RD
GoodOver: TRIB TO CANE CREEK
500' N MULKEYTOWN RD, Franklin, IL
Built 2020 Load: 52.8 t ADT: 175
IL 54
GoodOver: SPRING CREEK
7.6 M N OF ILL 115, Iroquois, IL
Built 2000 Load: 52.8 t ADT: 1,000
Showing 24,901-24,950 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 |