Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
Data updated May 2026
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
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 - Poor-condition share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
Rhode Island
7.69% top marginal rate
NE
Nebraska
7.73% top marginal rate
IL
Illinois
7.88% top marginal rate
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
PoorOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
PoorOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
PoorOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
IL 4
GoodOver: S Trib to Maxwell Cr
0.5 MI S SPARTA, Randolph, IL
Built 1996 Load: 32.4 t ADT: 3,000
UNMARKED PARK RD
GoodOver: TRIB. TO PLUM CREEK
WORLD SHOOTING COMPL, Randolph, IL
Built 2003 Load: 32.4 t ADT: 100
IL 153
GoodOver: TRIB TO MUD CREEK
300' S WASH CO LINE, Randolph, IL
Built 1934 Load: 32.4 t ADT: 1,350
FAS 849 CH 1
GoodOver: GRAVEL CREEK
CH1 OVER GRAVEL CR., Randolph, IL
Built 1973 Load: 32.4 t ADT: 2,150
FAS 849 CH 1
GoodOver: TINDALL CREEK
CH1 OVER TINDALL CK, Randolph, IL
Built 1972 Load: 32.4 t ADT: 2,050
FAS 1870 CH 2
GoodOver: FRICKLES BRANCH
.5 MI W. OF WELGE, Randolph, IL
Built 2010 Load: 32.4 t ADT: 725
FAS 863/CH 19
GoodOver: COX CREEK
SOUTH STEELEVILLE, Randolph, IL
Built 2006 Load: 32.4 t ADT: 2,150
FAS 863 (CH19)
GoodOver: COX DRAINAGE DITCH
.5MI S OF STEELVILLE, Randolph, IL
Built 2009 Load: 32.4 t ADT: 2,150
CH 22
GoodOver: TRIB TO COX CREEK
2 MILES S OF PERCY, Randolph, IL
Built 2004 Load: 32.4 t ADT: 650
TR 224
GoodOver: PLUM CREEK
TR 224 OVER PLUM CRK, Randolph, IL
Built 1978 Load: 32.4 t ADT: 250
TR 264
GoodOver: LICK BRANCH
T5S R5W, Randolph, IL
Built 1981 Load: 32.4 t ADT: 25
TR 236
GoodOver: TRIB OF PLUM CR
2.5 MI NE OF SPARTA, Randolph, IL
Built 1980 Load: 32.4 t ADT: 300
TR 236
GoodOver: PLUM CR
2.5 MI NE SPARTA, Randolph, IL
Built 1980 Load: 32.4 t ADT: 100
TR 92
GoodOver: NINE MILE CREEK
2.0 NE ELLIS GROVE, Randolph, IL
Built 1990 Load: 32.4 t ADT: 50
TR 67
GoodOver: TRIB TO PLUM CREEK
2 MI W. HOUSTON, Randolph, IL
Built 1992 Load: 32.4 t ADT: 25
TR 187
GoodOver: LITTLE MARY'S RIVER
3 MILES SOUTH SPARTA, Randolph, IL
Built 1994 Load: 32.4 t ADT: 75
TR 21
GoodOver: TRIB. TO PLUM CRK
NORTH OF SPARTA, Randolph, IL
Built 1997 Load: 32.4 t ADT: 25
TR-159A
GoodOver: Mary's River
4 MILES SE OF SPARTA, Randolph, IL
Built 2003 Load: 32.4 t ADT: 50
TR 109
GoodOver: MARY'S RIVER
TR 109 OVER MARYS RV, Randolph, IL
Built 1978 Load: 32.4 t ADT: 100
TR 87
GoodOver: MARY'S RIVER
S. OF COULTERVILLE, Randolph, IL
Built 1998 Load: 32.4 t ADT: 150
TR 33-KELLY ROAD
GoodOver: TRIB TO PLUM CREEK
3MI N OF SPARTA, Randolph, IL
Built 2007 Load: 32.4 t ADT: 50
TR 232
GoodOver: TRIB ROCKCASTLE CK
2MI S/W STEELEVILLE, Randolph, IL
Built 2009 Load: 32.4 t ADT: 225
TR 160
GoodOver: WELGE CREEK
1.25 MI SW OF BLAIR, Randolph, IL
Built 2003 Load: 32.4 t ADT: 25
TR 311
GoodOver: TRIB TO MARY'S RIVER
1 MI E OF CHESTER, Randolph, IL
Built 1976 Load: 32.4 t ADT: 550
TR 90
GoodOver: Trib to Nine Mile Cr
1 Mile E Ellis Grove, Randolph, IL
Built 2013 Load: 32.4 t ADT: 100
TR-226A EBENEZER R
GoodOver: ROCK CREEK
.25 MI NE ROCKWOOD, Randolph, IL
Built 2002 Load: 32.4 t ADT: 50
TR 231
GoodOver: MARY'S RIVER
TR231 .75MW STEEVLLE, Randolph, IL
Built 1981 Load: 32.4 t ADT: 225
TR 144
GoodOver: Trib to Welge Creek
5 Mi S of Schuline, Randolph, IL
Built 2014 Load: 32.4 t ADT: 275
TR 262
GoodOver: TRIB TO COX CREEK
1.5 M SE STEELEVILLE, Randolph, IL
Built 1981 Load: 32.4 t ADT: 50
TR 194
GoodOver: MILL CREEK
TR194 OVERMILL CRK, Randolph, IL
Built 1983 Load: 32.4 t ADT: 225
TR 327
GoodOver: PATTEN BRANCH
1.5 MI E OF CHESTER, Randolph, IL
Built 1982 Load: 32.4 t ADT: 200
TR 122A
GoodOver: GRAVEL CREEK
TR122A OVR GRAVEL CR, Randolph, IL
Built 1983 Load: 32.4 t ADT: 150
TR 110
GoodOver: NINEMILE CR
SELZ 3M NE ELLIS GR, Randolph, IL
Built 1983 Load: 32.4 t ADT: 50
TR 225
GoodOver: NINE MILE CREEK
1M N OF N PALESTINE, Randolph, IL
Built 1984 Load: 32.4 t ADT: 50
TR 257
GoodOver: TRIB TO RILEY CREEK
2 MI S ELISGROVE, Randolph, IL
Built 1984 Load: 32.4 t ADT: 50
TR 140
GoodOver: TRIB TO LITTLE MARYS
6 M W STEELVILLE, Randolph, IL
Built 1984 Load: 32.4 t ADT: 25
TR 243
GoodOver: ROBINSON CREE
3 MI EAST ELLISGROVE, Randolph, IL
Built 1985 Load: 32.4 t ADT: 50
TR 92
GoodOver: LITTLE NINE MILE CK
SEC 8 1M N ELLIS GRO, Randolph, IL
Built 1990 Load: 32.4 t ADT: 50
TR 276
GoodOver: N FORK COX CREEK
1.5 M NE STEELVILLE, Randolph, IL
Built 1986 Load: 32.4 t ADT: 100
TR122
GoodOver: TINDALL CREEK
2 MILES NE CHESTR, Randolph, IL
Built 1989 Load: 32.4 t ADT: 175
TR 122
GoodOver: MORRISON BRANCH
1 3/4 MI. NE CHESTER, Randolph, IL
Built 1989 Load: 32.4 t ADT: 175
TR 108
GoodOver: TRIB TO GRAVEL CK
1 1/2 MI N CHESTER, Randolph, IL
Built 1991 Load: 32.4 t ADT: 175
TR 210
GoodOver: DRY CREEK
1.5NW LEANDERVILLE, Randolph, IL
Built 1994 Load: 32.4 t ADT: 25
TR 198
GoodOver: TRIBUTARY TO MARYS R
2.25 N ROCKWOOD, Randolph, IL
Built 1978 Load: 32.4 t ADT: 50
TR-256 (Piney Cr R
GoodOver: Piney Branch Cr
2 MI SW OF SHILOH, Randolph, IL
Built 2002 Load: 32.4 t ADT: 25
TR 137
GoodOver: CAMPS CREEK
MARIGOLD ROAD, Randolph, IL
Built 1997 Load: 32.4 t ADT: 75
TR 203
GoodOver: Trib to Kaskaskia
3 M NW Ellis Grove, Randolph, IL
Built 2013 Load: 32.4 t ADT: 50
TR 215
GoodOver: THE DISCHARGE
3 MILES S OF MODOC, Randolph, IL
Built 2008 Load: 32.4 t ADT: 50
TR 149
GoodOver: TRIB TO FISH LK CRK
2MI W PRAIRIE DU-ROC, Randolph, IL
Built 1994 Load: 32.4 t ADT: 50
TR 149
GoodOver: 1 MILE RACE
NW PD ROCHER, Randolph, IL
Built 1998 Load: 32.4 t ADT: 50
Showing 20,251-20,300 of 27,743 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.