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
FAI 72 EB
UnknownOver: TR92&149,NSRR,HADLEY
1.5M W BARRY INTCHG, Pike, IL
Built 1988 ADT: 50
I-72 WB
UnknownOver: TR92&149,NSRR,HADLEY
1.5M W BARRY INTCHG, Pike, IL
Built 1988 ADT: 25
CH 4
UnknownOver: I-72
BARRY INTERCHANGE, Pike, IL
Built 1989 ADT: 8,850
CH 2
UnknownOver: I-72
1.25M E BARRY INTCHG, Pike, IL
Built 1989 ADT: 8,850
TR 148
UnknownOver: I-72
3.5M E BARRY INTCHG, Pike, IL
Built 1988 ADT: 8,850
TR 180B
UnknownOver: I-72
4.2M W NEW SALEM INT, Pike, IL
Built 1988 ADT: 8,850
CH 3
UnknownOver: I-72
I-72 INT @ NEW SALEM, Pike, IL
Built 1989 ADT: 8,000
TR 304
UnknownOver: I-72
1.6M W IL 107 INTCHG, Pike, IL
Built 1989 ADT: 8,000
IL 107
UnknownOver: I-72
IL 107 INTERCHANGE, Pike, IL
Built 1988 ADT: 9,900
TR 362
UnknownOver: I-72
1.5M E IL 107, Pike, IL
Built 1987 ADT: 9,900
CH 14
UnknownOver: I-72
2.5M E IL 107 INTCHG, Pike, IL
Built 1987 ADT: 9,900
TR 490
UnknownOver: I-72
5.4M E IL 107 INTCHG, Pike, IL
Built 1987 ADT: 9,900
I-72 EB
UnknownOver: TR 490
6M E IL 107 INTCHG, Pike, IL
Built 1989 ADT: 25
I-72/US 36 (WB)
UnknownOver: I-172
I-72/I-172 TRMPT INT, Pike, IL
Built 1991 ADT: 7,850
I-72EB TO I-172NB
UnknownOver: I-172
I-72/I-172 TRMPT INT, Pike, IL
Built 1991 ADT: 7,850
TR 89
UnknownOver: FAI 72/US 36
.7M SW I-172, Pike, IL
Built 1998 ADT: 14,500
IL 106
UnknownOver: I-72 / US 36
1.2M E MO BORDER, Pike, IL
Built 1998 ADT: 14,500
NORFOLK SOUTHERN R
UnknownOver: IL 106
1.3M NW BARRY, Pike, IL
Built 1950 ADT: 1,300
N&W RR
UnknownOver: FAS 596
1.6 MI N BARRY, Pike, IL
Built 1950 ADT: 600
N&W RR
UnknownOver: TR 149
1 MI. US 36, Pike, IL
Built 1950 ADT: 25
N&W RR
UnknownOver: TR-151
2 MI. US 36, Pike, IL
Built 1950 ADT: 25
N&W RR
UnknownOver: TR 298
1 M E OF NEW SALEM, Pike, IL
Built 1900 ADT: 25
IC&G RR
UnknownOver: TR 358
1.5 M E OF NEBO, Pike, IL
Built 1900 ADT: 25
IC&G RR
UnknownOver: TR 461
W. EDGE PEARL, Pike, IL
Built 1900 ADT: 25
N & W RR
UnknownOver: TR 490
S CRP LMT VALLEY CTY, Pike, IL
Built 1900 ADT: 50
ILL 145
UnknownOver: ILL 146
JCT ILL 145 ILL 146, Pope, IL
Built 2013 ADT: 900
I 57 NB & US 51 NB
UnknownOver: FAS 2936 (UNMARKED)
OVER FAS 2936, Pulaski, IL
Built 1967 ADT: 1,500
I 57 SB & US 51 SB
UnknownOver: FAS 2936 (UNMARKED)
OVER FAS 2936, Pulaski, IL
Built 1967 ADT: 1,500
FAS 939-CH 8
UnknownOver: FAI 57 & US 51
2.2 MI N FAS 2936, Pulaski, IL
Built 1967 ADT: 13,300
FAS 940-CH 5 PERKS
UnknownOver: FAI 57 & US 51
1.2 MI S UNION CO, Pulaski, IL
Built 1962 ADT: 13,800
TR 44 SHUMAKER RD
UnknownOver: FAI 57 & US 51
3 MI N FAS 2936, Pulaski, IL
Built 1967 ADT: 13,300
TR 60 EASTWOOD RD
UnknownOver: FAI 57 & US 51
6.8 MI S UNION CO, Pulaski, IL
Built 1966 ADT: 13,300
TR 95A PULASKI RD
UnknownOver: FAI 57 & US 51
8.9 MI S UNION CO, Pulaski, IL
Built 1966 ADT: 13,300
TR 107 OLMSTED RD
UnknownOver: FAI 57 & US 51
4.5 MI N FAS 2936, Pulaski, IL
Built 1966 ADT: 13,300
I 57 & US 51
UnknownOver: TR 7 BUTTER RIDGE RD
2.8 MI S OF UNION CO, Pulaski, IL
Built 1995 ADT: 100
SHAWNEE COLLEGE RO
UnknownOver: I-57
OVER I-57, Pulaski, IL
Built 2020 ADT: 13,800
UP RR
UnknownOver: FAU 9415
CHESTER, Randolph, IL
Built 1956 ADT: 350
ILL 150
UnknownOver: MISS RIV/FAU 9416
AT CHESTER - MoDOT, Randolph, IL
Built 1942 ADT: 1,050
RAILROAD
UnknownOver: SBI 3
EVANSVILLE, Randolph, IL
Built 1929 ADT: 75
UNION PACIFIC R.R.
UnknownOver: ILLINOIS 154
SPARTA, Randolph, IL
Built 1938 ADT: 5,600
MO-PAC RR
UnknownOver: FAU 9416
CHESTER, Randolph, IL
Built 1956 ADT: 1,400
UP RR
UnknownOver: TR 58
2 MI S ROOTS, Randolph, IL
Built 1975 ADT: 150
UP RR
UnknownOver: TR-129
W OF SPARTA, Randolph, IL
Built 1900 ADT: 400
UP RR
UnknownOver: TR 327
3 MI E CHESTER, Randolph, IL
Built 1900 ADT: 25
FAP-327 (US-50)
UnknownOver: FAU-8492/WHITTLE AVE
OLNEY, Richland, IL
Built 1963 ADT: 1,200
CSXT RR
UnknownOver: FAP-187 (ILL-130)
OLNEY, Richland, IL
Built 1935 ADT: 7,850
FAI 80
UnknownOver: MISS R, ILL 84 & RR
W OF RAPIDS CITY, Rock Island, IL
Built 1967 ADT: 5,500
FAI 80 SB
UnknownOver: I-88 & IL 92
2.5 MI NE SILVIS, Rock Island, IL
Built 1965 ADT: 13,200
FAI 80 NB
UnknownOver: I-88 & IL 92
2.5 MI NE SILVIS, Rock Island, IL
Built 1965 ADT: 13,800
FAI 280 EB
UnknownOver: US RT 67
IN MILAN, Rock Island, IL
Built 1967 ADT: 10,100
Showing 3,151-3,200 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 |