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
EB I-74
UnknownOver: N MAIN STREET
N MAIN ST IN MORTON, Tazewell, IL
Built 1960 ADT: 6,450
WB I-74
UnknownOver: N MAIN STREET
N MAIN ST IN MORTON, Tazewell, IL
Built 1960 ADT: 6,450
IL 8/ IL 116
UnknownOver: RICHLAND ST.
CEDAR ST EXTENSION, Tazewell, IL
Built 1966 ADT: 2,150
IL 8/ IL 116
UnknownOver: EDMUND ST
CEDAR ST EXTENSION, Tazewell, IL
Built 1966 ADT: 4,300
IL 8/ IL 116
UnknownOver: CENTER STREET
CEDAR ST EXTENSION, Tazewell, IL
Built 1962 ADT: 1,350
IL 8/ IL 116
UnknownOver: US 24/ IL 29
CEDAR ST EXT E PEO, Tazewell, IL
Built 1963 ADT: 26,200
US 150- MEADOWS AV
UnknownOver: FARM CR TPW RR, NS RR
MEADOWS AVE E. PEO., Tazewell, IL
Built 1935 ADT: 150
RIVERFRONT DR
UnknownOver: CAMP ST
N CAMP ST, E PEORIA, Tazewell, IL
Built 1959 ADT: 13,200
RIVERFRONT DR
UnknownOver: WEST WASHINGTON ST
.5 MI SW OF I-74, Tazewell, IL
Built 1958 ADT: 9,650
RAMP FR ILL116 TO1
UnknownOver: ILL 116
INTERCHANGE, Tazewell, IL
Built 1964 ADT: 21,200
EB US 24
UnknownOver: ILL 116
INTERCHANGE 24&116, Tazewell, IL
Built 1962 ADT: 20,400
WB US 24
UnknownOver: ILL 116
INTERCHANGE RT24&116, Tazewell, IL
Built 1962 ADT: 21,200
EB US 24
UnknownOver: RAMP FR ILL116 TO150
.75mi E McClugage Br, Tazewell, IL
Built 1961 ADT: 3,500
WB US 24
UnknownOver: RAMP FR IL116 TO 150
.75mi E McClugage Br, Tazewell, IL
Built 1961 ADT: 3,500
FAS 2467 - CH 3
UnknownOver: I-74
1.5 MI E OF MORTON, Tazewell, IL
Built 1960 ADT: 26,200
FAS 470 - CH 6
UnknownOver: I-74
SW OF DEER CREEK, Tazewell, IL
Built 1960 ADT: 26,200
TENNESSEE RD-TR234
UnknownOver: I-74
EAST EDGE OF MORTON, Tazewell, IL
Built 1960 ADT: 26,200
FONDULAC DR
UnknownOver: I-74
JUST E ILL-116 INTER, Tazewell, IL
Built 1958 ADT: 40,800
ILL 122
UnknownOver: I-155
2 MI W OF HOPEDALE, Tazewell, IL
Built 1971 ADT: 13,800
TOBOGGAN AVE-FAS 4
UnknownOver: I-155
1M S OF HOPEDALE, Tazewell, IL
Built 1972 ADT: 11,800
WB I-474
UnknownOver: EB I-74
2 MI W OF MORTON, Tazewell, IL
Built 1979 ADT: 38,200
FAU 6720 (PINECRES
UnknownOver: I-474
NEAR CTR 10 GROVELND, Tazewell, IL
Built 1979 ADT: 15,200
SPFLD RD FAU 6719
UnknownOver: I-474
.3 MI N OF MULLER RD, Tazewell, IL
Built 1972 ADT: 15,200
COLE ST
UnknownOver: I-474
0.25 MI N MULLER RD, Tazewell, IL
Built 1972 ADT: 15,200
EB I-474
UnknownOver: ILL 29
S. EDGE OF CR COEUR, Tazewell, IL
Built 1978 ADT: 27,800
WB I-474
UnknownOver: ILL 29
S EDGE OF CREVE COEU, Tazewell, IL
Built 1978 ADT: 20,400
EB I-474
UnknownOver: ILLINOIS RIVER, T&P RR
SW OF CREVE COEUR, Tazewell, IL
Built 1975 ADT: 300
WB I-474
UnknownOver: ILLINOIS RIVER, T&P RR
SW OF CREVE COEUR, Tazewell, IL
Built 1975 ADT: 300
ILL 9
UnknownOver: ILLINOIS RIVER, T&P RR
ILL RIVER AT PEKIN, Tazewell, IL
Built 1982 ADT: 200
Pleasant Hill Road
UnknownOver: I-74
1.5 MI W OF I-155, Tazewell, IL
Built 1980 ADT: 52,900
Muller Road
UnknownOver: I-74
1 MI W OF I-155, Tazewell, IL
Built 1980 ADT: 52,900
I-474 RP# 461
UnknownOver: WB I-474
3 MI NW OF MORTON, Tazewell, IL
Built 1980 ADT: 14,200
I-474 RP# 461
UnknownOver: I-74
3.5 MI E OF E. PEO., Tazewell, IL
Built 1980 ADT: 38,200
IL 40
UnknownOver: IL RIV,WASH.ST, T&P RR
Bob Michel Bridge, Tazewell, IL
Built 1993 ADT: 6,250
IL8 EB TO US24 WB
UnknownOver: US 24
0.5 MI E. GRANGE RD, Tazewell, IL
Built 1988 ADT: 15,900
SB I-155
UnknownOver: IL 98
1.2 MI S OF I-74, Tazewell, IL
Built 1989 ADT: 6,850
NB I-155
UnknownOver: IL 98
1.2 MI S OF I-74, Tazewell, IL
Built 1988 ADT: 8,200
QUEENWOOD RD
UnknownOver: I-155
1 MI S OF ILL 98, Tazewell, IL
Built 1992 ADT: 19,600
SB MAIN ST
UnknownOver: I-155
1.6 MI S OF IL 98, Tazewell, IL
Built 1990 ADT: 16,800
BROADWAY
UnknownOver: I-155
2.5 MI S OF IL 98, Tazewell, IL
Built 1990 ADT: 21,000
ALLENTOWN RD
UnknownOver: I-155
2 MI N OF ILL 9, Tazewell, IL
Built 1992 ADT: 18,300
SB I-155
UnknownOver: ILL 9
5.6 MI S OF IL 98, Tazewell, IL
Built 1990 ADT: 7,800
NB I-155
UnknownOver: ILL 9
5.6 MI S OF IL 98, Tazewell, IL
Built 1990 ADT: 5,250
TOWNLINE RD-CH 7
UnknownOver: I-155
3 MI S OF IL 9, Tazewell, IL
Built 1992 ADT: 15,100
FEATHER RD - FAS 4
UnknownOver: I-155
4.9 MI S OF ILL 9, Tazewell, IL
Built 1990 ADT: 13,800
ILL 122
UnknownOver: I-155
S. INTERCHGE IL 122, Tazewell, IL
Built 1992 ADT: 11,800
ARMINGTON RD-CH 8
UnknownOver: I-155
3 MI S OF ILL 122, Tazewell, IL
Built 1992 ADT: 75
MORTONAVE-FAU6729
UnknownOver: I-74
MORTON INTERCHANGE, Tazewell, IL
Built 1994 ADT: 26,200
Ramp H-4 to WB I-7
UnknownOver: I-74
EAST PEORIA, Tazewell, IL
Built 2004 ADT: 64,700
I74 RP 1.05(H-3)
UnknownOver: I74, RMPS H-1,4 DIVR CHA
EAST PEORIA, Tazewell, IL
Built 2004 ADT: 57,000
Showing 3,551-3,600 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 |