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
ILL 91
FairOver: NORTH CREEK
1 MI N PRINCEVILLE, Peoria, IL
Built 2000 Load: 48.0 t ADT: 1,550
FAS 2937-IL 169
FairOver: POST CREEK CUTOFF
0.5 MI E OF KARNAK, Pulaski, IL
Built 1993 Load: 48.0 t ADT: 1,300
AIRPORT ROAD
FairOver: CASE CREEK
0.8 MI. E. OF I-280, Rock Island, IL
Built 2005 Load: 48.0 t ADT: 4,150
IL 100
FairOver: ILLINOIS R TRIB.
1.1M N BROWNING CTR, Schuyler, IL
Built 1935 Load: 48.0 t ADT: 600
IL 101
FairOver: WILLIAMS CREEK
2.5M E IL61-AUGUSTA, Schuyler, IL
Built 1929 Load: 48.0 t ADT: 675
US RT 20
FairOver: YELLOW CREEK
1.5 MI W ILL 73, Stephenson, IL
Built 1970 Load: 48.0 t ADT: 5,750
US 20 BR
FairOver: CN RR
0.5 MI E FREEPORT, Stephenson, IL
Built 1956 Load: 48.0 t ADT: 7,000
IL 122
FairOver: CRANE CREEK TRIB
1 MI W OF DELAVAN, Tazewell, IL
Built 1991 Load: 48.0 t ADT: 700
IL 164
FairOver: Cedar Creek
1.51 mi NE of US 34, Warren, IL
Built 2017 Load: 48.0 t ADT: 1,500
IL 92 FAP 587
FairOver: BR MASTERS CR
.7 MI W VAN ORIN, Bureau, IL
Built 1932 Load: 48.3 t ADT: 650
IL 40
FairOver: OTTER CREEK
1.3 MI W MILLEDGVILL, Carroll, IL
Built 2015 Load: 48.3 t ADT: 1,850
IL 72 (LEE ST)
FairOver: WILLOW CREEK
0.2 M S I-90 NW TOLL, Cook, IL
Built 1940 Load: 48.3 t ADT: 29,700
STATE ST.
FairOver: THIRD CREEK
0.7M.S.OF US-30, Cook, IL
Built 1987 Load: 48.3 t ADT: 3,450
MONTROSE DRIVE
FairOver: PEDESTRIAN UNDERPASS
4400N 500W, Cook, IL
Built 1936 Load: 48.3 t ADT: 6,250
IL 72 FAP 553
FairOver: SOO LINE/IC & E RR
W EDGE OF KIRKLAND, DeKalb, IL
Built 2006 Load: 48.3 t ADT: 2,150
ILL 54/FAP 71A
FairOver: DRAIN DITCH
3.42mi N/Champaign C, Ford, IL
Built 1934 Load: 48.3 t ADT: 1,100
ILL 97
FairOver: PUTT CREEK
2.2 MI N OF CUBA, Fulton, IL
Built 2003 Load: 48.3 t ADT: 900
TR 203
FairOver: STREAM
2.7 M N ELDRED, Greene, IL
Built 1978 Load: 48.3 t ADT: 25
FAP-855 (ILL-14)
FairOver: WHEELER CREEK
4 MI E ILL-142, Hamilton, IL
Built 1953 Load: 48.3 t ADT: 2,100
CH 2-S MUDLINE RD
FairOver: BRANCH OF CAMP CREEK
1 M SW OF ORAVILLE, Jackson, IL
Built 1980 Load: 48.3 t ADT: 150
PLANK ROAD
FairOver: PINGREE CREEK
2.3 MI W UDINA, Kane, IL
Built 2001 Load: 48.3 t ADT: 5,400
Lyle Avenue
FairOver: Sandy Creek
0.15 Mi. N Highland Ave., Kane, IL
Built 1985 Load: 48.3 t ADT: 2,100
ILL 351 FAP 619
FairOver: LONE STAR CEMENT RR
2.0 MI S OF US 6, LaSalle, IL
Built 1939 Load: 48.3 t ADT: 4,250
FAP 327 (US 50)
FairOver: EMBARRAS RIVER
.5 MI W IL 1, Lawrence, IL
Built 2007 Load: 48.3 t ADT: 3,650
ILL 61
FairOver: La MOINE RIVER
1 MI S OF COLMAR, McDonough, IL
Built 2011 Load: 48.3 t ADT: 950
GRAF ROAD
FairOver: W BR PISCASAW CREEK
0.4 MI W MAXON RD, McHenry, IL
Built 2012 Load: 48.3 t ADT: 350
US 51 NB
FairOver: Norfolk Southern Railway
US 51 NB BLOOMINGTON, McLean, IL
Built 1981 Load: 48.3 t ADT: 8,700
LANCASTER ROAD
FairOver: BR LA MARSH CREEK
SEC 34 LIMESTONE TWP, Peoria, IL
Built 2008 Load: 48.3 t ADT: 3,400
CS1110-COMMERCIAL
FairOver: BRIAR CREEK
PULASKI, Pulaski, IL
Built 1993 Load: 48.3 t ADT: 350
I-88 EB
FairOver: MEREDOSIA DITCH
AT WHITESIDE CO LN, Rock Island, IL
Built 1976 Load: 48.3 t ADT: 6,250
ILL 34 & 145
FairOver: BRIER CREEK
1 MI.S.PANKEYVILLE, Saline, IL
Built 1925 Load: 48.3 t ADT: 4,100
TR 223
FairOver: DRAKE CREEK
5.65 MI NE STRASBURG, Shelby, IL
Built 2016 Load: 48.3 t ADT: 100
US 150- MEADOWS AV
FairOver: LITTLE FARM CREEK
1.7 MI E OF ILL 8, Tazewell, IL
Built 2009 Load: 48.3 t ADT: 5,700
135TH (WB) ST
FairOver: W.B.DESPLAINES RIVER
0.46 MI E IL 53, Will, IL
Built 1950 Load: 48.3 t ADT: 7,100
135TH (WB) ST
FairOver: E.B.DESPLAINES RIVER
0.7 MI E ILL 53, Will, IL
Built 1950 Load: 48.3 t ADT: 7,100
I-39 & US 20 N B
FairOver: CN RR
4.7 MI E OF IL 251, Winnebago, IL
Built 1963 Load: 48.3 t ADT: 25,450
I-39 & US 20 SB
FairOver: CN RR
4.7 MI E OF IL 251, Winnebago, IL
Built 1963 Load: 48.3 t ADT: 25,450
US 20 E B
FairOver: W CHANNEL ROCK RIV
.5 MI E OF IL 2, Winnebago, IL
Built 2014 Load: 48.3 t ADT: 32,000
IL 251
FairOver: EAST PANTHER CREEK
6.45 MI S OF ILL 116, Woodford, IL
Built 2011 Load: 48.3 t ADT: 1,750
ILL 127
FairOver: SANDY CREEK
1 MI SO OF TAMMS, Alexander, IL
Built 1989 Load: 48.6 t ADT: 650
IL 16 EB (FAP 91)
FairOver: Eastern IL RR
1.0 MI W CHARLESTON, Coles, IL
Built 1961 Load: 48.6 t ADT: 15,100
IL 16 WB (FAP 91)
FairOver: Eastern IL RR
1.0 MI W CHARLESTON, Coles, IL
Built 1961 Load: 48.6 t ADT: 15,100
ILL 72
FairOver: COON CREEK
.5 MI W KANE CO LN, DeKalb, IL
Built 1989 Load: 48.6 t ADT: 4,950
I-290
FairOver: SPRING BROOK
0.6 M S OF IL 19, DuPage, IL
Built 1970 Load: 48.6 t ADT: 89,900
ILL 100
FairOver: GRAHAM HOLLOW CREEK
1.2M N GRAFTON, Jersey, IL
Built 1938 Load: 48.6 t ADT: 1,850
IL 97
FairOver: LITTLERS CREEK
2 MI N OF RAPATEE, Knox, IL
Built 2002 Load: 48.6 t ADT: 1,350
FAP 322 (US 51)
FairOver: SPRING CREEK
S BETWEEN IL48&BSN51, Macon, IL
Built 1976 Load: 48.6 t ADT: 4,400
ILL 108
FairOver: HURRICANE CREEK
W EDGE CARLINVILLE, Macoupin, IL
Built 1992 Load: 48.6 t ADT: 1,750
ILL 4
FairOver: HURRICANE CREEK
2.5 M N CARLINVILLE, Macoupin, IL
Built 1960 Load: 48.6 t ADT: 2,900
MSS 42 FAIRMONT AV
FairOver: CANTEEN CANAL
1.5MI W COLLINSVILLE, Madison, IL
Built 1973 Load: 48.6 t ADT: 825
Showing 13,151-13,200 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.