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
TR 61
FairOver: SUGAR CREEK
4 MI E LITTLETON, Schuyler, IL
Built 1988 Load: 32.4 t ADT: 25
TR 83A
FairOver: RICHIE BR. CRK.
1 MI NW OF RAY, Schuyler, IL
Built 1995 Load: 32.4 t ADT: 25
TR 105
FairOver: RICHIE BRANCH
2.75 MI W RAY, Schuyler, IL
Built 1995 Load: 32.4 t ADT: 25
TR 37
FairOver: SUGAR CREEK
7 MI NE LITTLETON, Schuyler, IL
Built 1995 Load: 32.4 t ADT: 25
TR 302
FairOver: SUGAR CREEK
7 MI E LITTLETON, Schuyler, IL
Built 1995 Load: 32.4 t ADT: 25
TR 234
FairOver: SUGAR CREEK
2.5 MI NW OF RAY, Schuyler, IL
Built 1980 Load: 32.4 t ADT: 25
TR 245
FairOver: HORNY BRNCH
3.0 SW RUSHVILLE, Schuyler, IL
Built 2000 Load: 32.4 t ADT: 25
TR 160
FairOver: HORNEY BRANCH
6.0 MI SW RUSHVILLE, Schuyler, IL
Built 1999 Load: 32.4 t ADT: 25
TR 158
FairOver: RYAN BRNCH
5.0 N W RIPLEY, Schuyler, IL
Built 2005 Load: 32.4 t ADT: 25
OLD US 36
FairOver: PLUM CREEK
1.5 MI W RIGGSTON, Scott, IL
Built 1951 Load: 32.4 t ADT: 1,850
CH 13
FairOver: PLUM CREEK
1.5 MI SSW EXETER, Scott, IL
Built 1977 Load: 32.4 t ADT: 125
TR 154
FairOver: BRUSHY CREEK
5.0 MI E WINCHESTER, Scott, IL
Built 2000 Load: 32.4 t ADT: 50
TR 136
FairOver: LITTLE SANDY CK
2.5 MI NE ALSEY, Scott, IL
Built 1986 Load: 32.4 t ADT: 25
TR 79
FairOver: BIG BRANCH
2 MI ENE WINCHESTER, Scott, IL
Built 1977 Load: 32.4 t ADT: 50
TR 104
FairOver: BIG SANDY CREEK
SE WINCHESTER, Scott, IL
Built 2005 Load: 32.4 t ADT: 75
TR 59
FairOver: PLUM CREEK
WEST OF BLOOMFIELD, Scott, IL
Built 1978 Load: 32.4 t ADT: 75
TR 55B
FairOver: WALNUT CREEK
1.2 M N ILL 106, Scott, IL
Built 1983 Load: 32.4 t ADT: 50
TR 23
FairOver: MAUVAISE TERRE CREEK
1 MI NNE MERRITT, Scott, IL
Built 1977 Load: 32.4 t ADT: 50
TR 181
FairOver: RICHLAND CREEK
3.8 MI SW WINDSOR, Shelby, IL
Built 1983 Load: 32.4 t ADT: 25
TR 425
FairOver: HENRY CREEK
1.0 MI N OF SIGEL, Shelby, IL
Built 1983 Load: 32.4 t ADT: 200
TR 223
FairOver: SEXSON BRANCH
3.8 MI NE STRASBURG, Shelby, IL
Built 1982 Load: 32.4 t ADT: 75
TR 40 A
FairOver: OPOSSUM CREEK
4.0 MI NE OCONEE, Shelby, IL
Built 1983 Load: 32.4 t ADT: 50
TR 303
FairOver: OPOSSUM CREEK
2.1 MI N OCONEE, Shelby, IL
Built 1982 Load: 32.4 t ADT: 75
TR 115
FairOver: STREAM
1.5 MI NW WINDSOR, Shelby, IL
Built 1982 Load: 32.4 t ADT: 50
TR 140
FairOver: MUD CREEK
3.6 MI NE TOWER HILL, Shelby, IL
Built 1981 Load: 32.4 t ADT: 75
TR 238
FairOver: STREAM
3 MI N OF FINDLAY, Shelby, IL
Built 1982 Load: 32.4 t ADT: 25
TR 421
FairOver: POLECAT CREEK
2.6 MI NE HERRICK, Shelby, IL
Built 1983 Load: 32.4 t ADT: 50
TR 70
FairOver: BECK'S CREEK TRIB
4.1 MI NW HERRICK, Shelby, IL
Built 1987 Load: 32.4 t ADT: 50
CH-29
FairOver: Long Grove Crk Trib
1.5 MI NW MOWEAQUA, Shelby, IL
Built 1983 Load: 32.4 t ADT: 125
TR 124 B
FairOver: MITCHELL CREEK
3.3 MI SW COWDEN, Shelby, IL
Built 1987 Load: 32.4 t ADT: 75
TR 41
FairOver: FLAT BRANCH
4 MI NW YANTISVILLE, Shelby, IL
Built 1992 Load: 32.4 t ADT: 50
TR 112C
FairOver: POLECAT CREEK
2.8 MI NE HERRICK, Shelby, IL
Built 1990 Load: 32.4 t ADT: 50
TR 335 A
FairOver: BRUSH CREEK
3 MI NW STEWARDSON, Shelby, IL
Built 1996 Load: 32.4 t ADT: 175
TR 78
FairOver: TRIB TO BECK'S CREEK
6 MI SSW TOWER HILL, Shelby, IL
Built 1999 Load: 32.4 t ADT: 100
CH 7
FairOver: RICHLAND CREEK
3.0 MI NW HERBORN, Shelby, IL
Built 2007 Load: 32.4 t ADT: 225
TR 140
FairOver: MITCHELL CREEK
2.1 MI NW COWDEN, Shelby, IL
Built 2011 Load: 32.4 t ADT: 50
ILL 177
FairOver: SILVER CREEK
WCL MASCOUTAH, St. Clair, IL
Built 1961 Load: 32.4 t ADT: 7,000
ILL 159
FairOver: W FORK RICHLAND CRK
2 M S SMITHTON, St. Clair, IL
Built 1954 Load: 32.4 t ADT: 4,600
FAI 64 WB
FairOver: LITTLE SILVER CREEK
1.5 MI W OF ILL 4, St. Clair, IL
Built 1971 Load: 32.4 t ADT: 20,950
US 50
FairOver: SILVER CREEK BKWATER
1.3 MI W ILL 4, St. Clair, IL
Built 1939 Load: 32.4 t ADT: 16,000
FAU 9166 LINCOLN H
FairOver: OGLES CREEK
.14 E IL 159, St. Clair, IL
Built 1985 Load: 32.4 t ADT: 17,900
IL 4
FairOver: N1 TRIB L SILVER CRK
2 MI N OF US 50, St. Clair, IL
Built 1930 Load: 32.4 t ADT: 6,800
IL 15
FairOver: Abandoned RR,Salt Storag
2 mi NW of IL 159, St. Clair, IL
Built 1959 Load: 32.4 t ADT: 21,800
LAKE DRIVE
FairOver: DRAINGE TO FHSP LAKE
2.5 MI NW OF IL 157, St. Clair, IL
Built 1929 Load: 32.4 t ADT: 2,750
SCOTT TROY FAU 917
FairOver: HAGEMANN CREEK
2.9 MI N U.S. RTE 50, St. Clair, IL
Built 1976 Load: 32.4 t ADT: 7,500
TOWN HALL ROAD CH
FairOver: RAYHILL SLOUGH
2.0 MI E OF ILL RTE4, St. Clair, IL
Built 1979 Load: 32.4 t ADT: 350
FAU 9167 SULLIVAN
FairOver: METRO LINK
0.2M N ILL 161, St. Clair, IL
Built 1980 Load: 32.4 t ADT: 8,250
BOHLEYSVILLE RD CH
FairOver: PRAIRIE DULONG CR
4.6 MI S MILLSTADT, St. Clair, IL
Built 1981 Load: 32.4 t ADT: 350
CEMETERY RD FAS 84
FairOver: JACKS RUN CREEK
0.5 MI E FREEBURG, St. Clair, IL
Built 1983 Load: 32.4 t ADT: 1,050
FAU 9175
FairOver: OGLE CREEK
0.5M S MADISON C LN, St. Clair, IL
Built 1983 Load: 32.4 t ADT: 8,100
Showing 9,501-9,550 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.