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
I-80 EB
FairOver: ADAMS CREEK
1.8 MI W IL 89, Bureau, IL
Built 2011 Load: 47.6 t ADT: 11,450
I-80 WB
FairOver: ADAMS CREEK
1.8 MI W IL 89, Bureau, IL
Built 2010 Load: 47.6 t ADT: 11,450
ILL 161
FairOver: LOST CREEK
1.7 E ILL 127, Clinton, IL
Built 1937 Load: 47.6 t ADT: 4,100
US 14 (MINER ST)
FairOver: DES PLAINES RIVER
0.7 M W I-294, Cook, IL
Built 1925 Load: 47.6 t ADT: 16,100
GREEN BAY RD
FairOver: N SHORE CHANNEL
0.2 M N SIMPSON, Cook, IL
Built 1936 Load: 47.6 t ADT: 10,150
US 30 (LINCOLN HWY
FairOver: THIRD CREEK
2 M W IL 394, Cook, IL
Built 1982 Load: 47.6 t ADT: 18,200
US 30 (LINCOLN HWY
FairOver: BUTTERFIELD CREEK
0.6 M E OF IL 50, Cook, IL
Built 1983 Load: 47.6 t ADT: 37,300
US 30 (LINCOLN HWY
FairOver: BUTTERFIELD CREEK
0.1 M W CRAWFORD AVE, Cook, IL
Built 1985 Load: 47.6 t ADT: 37,300
I-294 NB
FairOver: C&NW RR
0.6 M N ILL 58 P11, Cook, IL
Built 1958 Load: 47.6 t ADT: 71,350
I-294 SB
FairOver: C&NW RR
0.6 M N ILL 58 P11, Cook, IL
Built 1958 Load: 47.6 t ADT: 71,350
FAP 116 (IL 130)
FairOver: RANGE CREEK
.8 MI N JASPER CO LI, Cumberland, IL
Built 2016 Load: 47.6 t ADT: 1,900
FAP-774 (ILL-33)
FairOver: MORRIS CREEK
4.3 MI E BEECHER CTY, Effingham, IL
Built 1939 Load: 47.6 t ADT: 3,400
IL 96
FairOver: WEAVER CREEK
.75 MI W OF LOMAX, Henderson, IL
Built 1992 Load: 47.6 t ADT: 1,500
FAI 74 & 280 EB
FairOver: MOSQUITO CREEK
3.8 MI W JCT FAI 80, Henry, IL
Built 1961 Load: 47.6 t ADT: 7,500
FAI 80 WB
FairOver: MUD CREEK
0.7 MI W JCT ILL 78, Henry, IL
Built 1961 Load: 47.6 t ADT: 8,800
ATKINSON ROAD
FairOver: GREEN RIVER
3.5 MI. N. ATKINSON, Henry, IL
Built 2001 Load: 47.6 t ADT: 600
IL RTE 13
FairOver: LITTLE CRAB ORCHARD
0.19MI E NEW ERA RD, Jackson, IL
Built 2007 Load: 47.6 t ADT: 21,600
WILMOT RD
FairOver: W FK N BR CHGO RIVER
.3 M E 94 1.8 M S 22, Lake, IL
Built 1963 Load: 47.6 t ADT: 2,600
FAP 332 (IL 1)
FairOver: BRUSHY FORK CREEK
.25 N PINKSTAFF RD, Lawrence, IL
Built 2003 Load: 47.6 t ADT: 3,600
US 52 & IL 2 & IL
FairOver: ROCK RIVER
DIXON, Lee, IL
Built 2002 Load: 47.6 t ADT: 22,100
I 39&US 51
FairOver: WILLOW CREEK
0.6 MI N. CHICAGO RD, Lee, IL
Built 1983 Load: 47.6 t ADT: 18,700
I-88 EB
FairOver: STEWARD CR
AT OGLE CO LN, Lee, IL
Built 1974 Load: 47.6 t ADT: 8,050
ILL 121(FAP 320)
FairOver: STEVENS CREEK
NW EDGE OF DECATUR, Macon, IL
Built 1984 Load: 47.6 t ADT: 7,950
ILL 143
FairOver: MOONEY CREEK
0.5 M E JCT 157, Madison, IL
Built 1940 Load: 47.6 t ADT: 4,450
US 136 (EB)
FairOver: E FORK La MOINE RIVR
1.4 MI W JCT 61 136, McDonough, IL
Built 2008 Load: 47.6 t ADT: 3,400
US 136 (WB)
FairOver: E FORK LA MOINE RIVR
1.4 MI W JCT 61 136, McDonough, IL
Built 2008 Load: 47.6 t ADT: 3,400
I-55 SB
FairOver: MACKINAW RIVER
2 MI SW OF LEXINGTON, McLean, IL
Built 1973 Load: 47.6 t ADT: 11,900
I-55 NB
FairOver: MACKINAW RIVER
2 MI SW OF LEXINGTON, McLean, IL
Built 1973 Load: 47.6 t ADT: 11,900
I-74
FairOver: DRY RUN CR
0.3MI W OF NEBRASKA, Peoria, IL
Built 1965 Load: 47.6 t ADT: 21,900
MOLINE RD (OLD IL2
FairOver: ZUMA CREEK
5.5 MI SW HILLSDALE, Rock Island, IL
Built 1923 Load: 47.6 t ADT: 675
FAI 74 NB
FairOver: ROCK RIVER, SIDE RDS
S EDGE MOLINE, Rock Island, IL
Built 2002 Load: 47.6 t ADT: 15,750
I-88
FairOver: DRAINAGE DITCH
5. MI SW HILLSDALE, Rock Island, IL
Built 1976 Load: 47.6 t ADT: 13,500
TR 15 (9N)
FairOver: FANCY CREEK
1.5 SW WILLIAMSVILLE, Sangamon, IL
Built 1900 Load: 47.6 t ADT: 175
FAI 72 WB
FairOver: DRAINAGE DITCH
2.6MI W IL 100 INT, Scott, IL
Built 1986 Load: 47.6 t ADT: 4,950
IL 126
FairOver: LILY CACHE CREEK
2 M E OF IL 59, Will, IL
Built 1983 Load: 47.6 t ADT: 14,300
BELT LINE RD
FairOver: IL RR
0.8 MI W OF ILL 251, Winnebago, IL
Built 2010 Load: 47.6 t ADT: 1,650
IL 2 NB
FairOver: MUD CREEK
0.4 MI S OLD RIVR RD, Winnebago, IL
Built 2012 Load: 47.6 t ADT: 11,800
COMLY ROAD
FairOver: COOLIDGE CREEK
0.1 MI W KEITH ROAD, Winnebago, IL
Built 1970 Load: 47.6 t ADT: 200
HONONEGAH RD
FairOver: DRY CREEK
1.3 MI. W. OF IL 251, Winnebago, IL
Built 1991 Load: 47.6 t ADT: 11,400
ILL 336 NB
FairOver: ROCK CREEK
2MI N I172/24 INT, Adams, IL
Built 1994 Load: 48.0 t ADT: 5,800
I-57
FairOver: STREAM
MP 196.4, Coles, IL
Built 1968 Load: 48.0 t ADT: 22,700
IL 1 (HALSTED ST
FairOver: BUTTERFIELD CREEK
2.5 M N US 30, Cook, IL
Built 1974 Load: 48.0 t ADT: 17,900
FAS-1696 TRIMBLE R
FairOver: TRIB SUGAR CREEK
1.5 MI SW TRIMBLE, Crawford, IL
Built 1992 Load: 48.0 t ADT: 2,800
US 24
FairOver: BNSF RR (063690C)
1 MI E OF SCHUYLER C, Fulton, IL
Built 1954 Load: 48.0 t ADT: 1,350
NETTLE CR ROAD CH-
FairOver: WEST FORK NETTLE CR
0.1 MI N OF TR 13, Grundy, IL
Built 1964 Load: 48.0 t ADT: 100
IL 1/FAP 332A
FairOver: SUGAR CREEK TRIB
3.18 M N OF CH 10, Iroquois, IL
Built 1994 Load: 48.0 t ADT: 2,200
IL 180
FairOver: CADWELL CR
2 MI N WILLIAMSFIELD, Knox, IL
Built 2000 Load: 48.0 t ADT: 400
US 150
FairOver: HENDERSON CREEK
6.3 MI N OF US 34, Knox, IL
Built 2012 Load: 48.0 t ADT: 2,950
FAS 1195 IL 180
FairOver: BR BRANDYWINE CR
4.5 MI N OF US 150, Knox, IL
Built 2009 Load: 48.0 t ADT: 400
I-74 EB
FairOver: LITTLE KICKAPOO CR
7.6 MI E OF US 51, McLean, IL
Built 1968 Load: 48.0 t ADT: 10,800
Showing 13,101-13,150 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.