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 292/GARDNER RD
GoodOver: TRIB E FK MAZON RIV.
0.67 MI E GORMAN RD, Grundy, IL
Built 1999 Load: 37.6 t ADT: 2,400
TR 71
GoodOver: WILDCAT CREEK
4.5 MI SW LAHARPE, Hancock, IL
Built 1980 Load: 37.6 t ADT: 50
TR 396
GoodOver: BAPTIST CREEK
3.1 NE FOUNTAINGREEN, Hancock, IL
Built 1985 Load: 37.6 t ADT: 50
FAS 334 (CH 9)
GoodOver: TRIB. TO LOUIS CREEK
0.5 MI W BUCKLEY, Iroquois, IL
Built 2001 Load: 37.6 t ADT: 1,050
TR 353
GoodOver: FOUNTAIN CR
1 MI E OF CH 6, Iroquois, IL
Built 1994 Load: 37.6 t ADT: 25
FAS-1916 (CH-8)
GoodOver: Trib to Glen Creek
NE 1/4 SEC 23-7-2, Jackson, IL
Built 1985 Load: 37.6 t ADT: 1,100
FAS 748
GoodOver: LITTLE PIASA CREEK
2.2 MI W ILL 67, Jersey, IL
Built 1901 Load: 37.6 t ADT: 475
I-90
GoodOver: STREAM
1.2 M W US-20, Kane, IL
Built 1958 Load: 37.6 t ADT: 57,000
INDIAN TRAIL ROAD
GoodOver: INDIAN CREEK
.05MI E OF FARNSWRTH, Kane, IL
Built 2005 Load: 37.6 t ADT: 12,800
INTERSTATE 94 SB
GoodOver: E J & E RR
I94 .5M S ILL 176, Lake, IL
Built 1958 Load: 37.6 t ADT: 72,350
TR 108
GoodOver: TOMAHAWK CREEK
E 6TH RD N 3510, LaSalle, IL
Built 1987 Load: 37.6 t ADT: 175
TR 439
GoodOver: CAHOKIA CR
1/4 M S SAWYERVILLE, Macoupin, IL
Built 1980 Load: 37.6 t ADT: 175
LEBANON RD/FAU 912
GoodOver: CANTEEN CREEK
2M EAST 159, Madison, IL
Built 2003 Load: 37.6 t ADT: 1,750
US 51 NB
GoodOver: BNSFRR
1 mi S of Centralia, Marion, IL
Built 1993 Load: 37.6 t ADT: 6,900
US 51 SB (FAP 60)
GoodOver: BURLINGTON NORTHERN
1 MI S CENTRALIA, Marion, IL
Built 1993 Load: 37.6 t ADT: 6,900
FAS-1786
GoodOver: WARREN BRANCH
2 MI NE ALMA, Marion, IL
Built 1985 Load: 37.6 t ADT: 450
TR-218A
GoodOver: TRIB DAVISON CREEK
0.5 MI N TONTI, Marion, IL
Built 1993 Load: 37.6 t ADT: 275
FAS-371 (CH-12)
GoodOver: CROW CREEK
2.5MI NWOF WASHBURN, Marshall, IL
Built 1999 Load: 37.6 t ADT: 725
US 150
GoodOver: TRIB. OF SALT CREEK
2.0 M S OF LEROY, McLean, IL
Built 2001 Load: 37.6 t ADT: 900
FAS 1480 CH 36
GoodOver: LITTLE KICKAPOO CR
5.0 MI N HEYWORTH, McLean, IL
Built 1986 Load: 37.6 t ADT: 375
TR 205
GoodOver: PIKE RUN
NE-1-T13NR4W, Mercer, IL
Built 1980 Load: 37.6 t ADT: 50
TR 52
GoodOver: TRIB MCCRANEY CREEK
2200N 1130E, Pike, IL
Built 1987 Load: 37.6 t ADT: 125
TR 115
GoodOver: TRIB TO HESS BAYOU
1 MI E MERIDIAN RD, Pulaski, IL
Built 1999 Load: 37.6 t ADT: 75
FAS 859
GoodOver: LITTLE MARYS RIVER
3.5 MI W STEELVILLE, Randolph, IL
Built 1992 Load: 37.6 t ADT: 900
ANDALUSIA RD
GoodOver: DRAINAGE DITCH
0.3MI W JCT US67, Rock Island, IL
Built 2001 Load: 37.6 t ADT: 10,400
TR 4 (18W)
GoodOver: Spring Creek
0.32 mi N of I-72, Sangamon, IL
Built 2022 Load: 37.6 t ADT: 75
TR 164
GoodOver: Lick Creek
0.02 mi. S TR 283, Sangamon, IL
Built 2017 Load: 37.6 t ADT: 250
TR 162
GoodOver: BIG SANDY CREEK
6MI ENE WINCHESTER, Scott, IL
Built 1989 Load: 37.6 t ADT: 50
ROCK CITY RD
GoodOver: PECATONICA RIVER
7.0 MI E FREEPORT, Stephenson, IL
Built 1950 Load: 37.6 t ADT: 1,100
TR 195/KENTUCKY RD
GoodOver: BEAUCOUP CREEK
2MI S OF BEAUCOUP, Washington, IL
Built 2002 Load: 37.6 t ADT: 50
FAP 855 - IL 14
GoodOver: STREAM
4 MI E ENFIELD JCT, White, IL
Built 2006 Load: 37.6 t ADT: 3,050
CH 13
GoodOver: TRIB TO LIMEKILN CR
3 MI W CENTERVILLE, White, IL
Built 2014 Load: 37.6 t ADT: 75
US 45
GoodOver: HICKORY CREEK
50 FT N US-30, Will, IL
Built 1999 Load: 37.6 t ADT: 33,700
CONDON ROAD
GoodOver: CANAL CREEK
0.3 MI E ROTHWELL RD, Winnebago, IL
Built 1976 Load: 37.6 t ADT: 275
TR 118
GoodOver: SAND BRANCH
2.75 MI S W MENDON, Adams, IL
Built 1979 Load: 37.9 t ADT: 125
CH 4
GoodOver: PIGEON CREEK
2.5 MI E PAYSON, Adams, IL
Built 2000 Load: 37.9 t ADT: 575
TR 13
GoodOver: BEARCAT CREEK
.61 MI S. PANAMA, Bond, IL
Built 1996 Load: 37.9 t ADT: 25
FAS 522
GoodOver: LONG POINT SLOUGH
.09 MI N OF LONGVIEW, Champaign, IL
Built 1988 Load: 37.9 t ADT: 500
WILLOW RD
GoodOver: SKOKIE RIVER
0.4 M E I-94, Cook, IL
Built 1935 Load: 37.9 t ADT: 17,300
ED BOSSERT DR
GoodOver: I&M CANAL
.16 MI. N. OF MAIN, Cook, IL
Built 1991 Load: 37.9 t ADT: 600
FAP-332 (ILL-1)
GoodOver: BR SUGAR CREEK
0.5 MI S TRIMBLE, Crawford, IL
Built 1989 Load: 37.9 t ADT: 2,500
US 51 (SB)(FAP 322
GoodOver: TEN MILE CREEK
1.5 MI S WAPELLA, De Witt, IL
Built 1979 Load: 37.9 t ADT: 10,300
FAP 323(US 36)
GoodOver: DRAINAGE DITCH
1.25 MI W OF NEWMAN, Douglas, IL
Built 1989 Load: 37.9 t ADT: 2,600
FAP 323(US 36)
GoodOver: BRUSHY FORK TRIB
2.06 MI W OF NEWMAN, Douglas, IL
Built 1991 Load: 37.9 t ADT: 2,100
FAP 323(US 36)
GoodOver: STREAM
1 MI E OF IL 49, Edgar, IL
Built 1989 Load: 37.9 t ADT: 1,650
FAP 323(US 36)
GoodOver: STREAM
2.1 MI E OF IL 49, Edgar, IL
Built 1989 Load: 37.9 t ADT: 1,650
TR-62
GoodOver: BIG CREEK
3 MI S DEXTER, Effingham, IL
Built 1984 Load: 37.9 t ADT: 125
TR 217
GoodOver: SALT CREEK
1.25 MI SE WATSON WY, Effingham, IL
Built 1986 Load: 37.9 t ADT: 350
TR 34A
GoodOver: FULFER CREEK
1.25 MI SW GILMORE, Effingham, IL
Built 2013 Load: 37.9 t ADT: 50
CH 14
GoodOver: PRARIE CK
JIM BROWNING RD, Franklin, IL
Built 1979 Load: 37.9 t ADT: 350
Showing 22,851-22,900 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 |