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 121
GoodOver: DEER CREEK
1.3MI SE LINCOLN, Logan, IL
Built 1999 Load: 43.4 t ADT: 3,650
EMDEN-BURTON VIEW
GoodOver: PRAIRIE CR TRIB
2 MI S EMDEN, Logan, IL
Built 1999 Load: 43.4 t ADT: 450
TR 46
GoodOver: South Fork Creek
3.2 Mi. N Warrensbur, Macon, IL
Built 2017 Load: 43.4 t ADT: 50
SBI-142 (ILL-37)
GoodOver: RACCOON CREEK MIDDLE
1 MILE S OF IL 161, Marion, IL
Built 1997 Load: 43.4 t ADT: 4,500
TR-254
GoodOver: Crooked Crk Overflow
2.5 Mi S Rt. 50, Marion, IL
Built 2019 Load: 43.4 t ADT: 725
HEMMINGSON RD.
GoodOver: S.BR.KISHWAUKEE RIV.
2.0M.E.OF UNION, McHenry, IL
Built 1991 Load: 43.4 t ADT: 500
North Union Road
GoodOver: Kishwaukee River
.8 MI N IL 176, McHenry, IL
Built 2019 Load: 43.4 t ADT: 500
US 67 NB
GoodOver: NORFOLK SOUTHERN RR
4.5M N US67/I72/US36, Morgan, IL
Built 1998 Load: 43.4 t ADT: 5,450
US 52 (FAS 2079)
GoodOver: GOOSE HOLLOW CREEK
1 MI. SE. BROOKVILLE, Ogle, IL
Built 1991 Load: 43.4 t ADT: 800
CHANA RD
GoodOver: HONEY CREEK
1MI N OF CHANA, Ogle, IL
Built 2013 Load: 43.4 t ADT: 900
BRIM.JUBILEE ROAD
GoodOver: JUBILEE CREEK
SE1/4-16-JUBILEE, Peoria, IL
Built 2021 Load: 43.4 t ADT: 400
ILL.154
GoodOver: GALUM CREEK
E OF ILL.150, Perry, IL
Built 1992 Load: 43.4 t ADT: 2,150
US 6
GoodOver: COAL CREEK
0.2 MI. E. OF US 150, Rock Island, IL
Built 1993 Load: 43.4 t ADT: 11,500
63 STREET
GoodOver: BRANCH OF MILL CREEK
0.9 MILES N SHERRARD, Rock Island, IL
Built 1983 Load: 43.4 t ADT: 1,350
IL 34
GoodOver: UNNAMED STREAM
0.8 MI SE OF GALATIA, Saline, IL
Built 2019 Load: 43.4 t ADT: 3,250
TR 28
GoodOver: PRAIRIE CREEK
3.0 MI WEST GALATIA, Saline, IL
Built 1982 Load: 43.4 t ADT: 25
VETERANS / IL 4 (S
GoodOver: NS RR & GATEWAY W RR
.2M N I-72, Sangamon, IL
Built 1990 Load: 43.4 t ADT: 31,800
TR 281
GoodOver: Lick Creek Trib
0.43 mi W TR 8, Sangamon, IL
Built 2019 Load: 43.4 t ADT: 25
IL 100
GoodOver: FRIDDLE BRANCH
1.9M S BROWNING CTR, Schuyler, IL
Built 1992 Load: 43.4 t ADT: 1,100
HILLVIEW RD
GoodOver: SANDY CREEK
5 MI S IL 106/OLD 36, Scott, IL
Built 1940 Load: 43.4 t ADT: 450
FAP 325(IL 16)
GoodOver: RICHLAND CREEK
2.3 MI W IL 32, Shelby, IL
Built 1980 Load: 43.4 t ADT: 4,250
TR 145
GoodOver: MUD CREEK TRIB
3.4 MI NE TOWER HILL, Shelby, IL
Built 1985 Load: 43.4 t ADT: 25
FAI 255 SB
GoodOver: HARDING DITCH north
1.9MI N FAI 64, St. Clair, IL
Built 1985 Load: 43.4 t ADT: 21,750
IL 177
GoodOver: LOOP CREEK
3MI WEST OF 158, St. Clair, IL
Built 2007 Load: 43.4 t ADT: 7,800
TR 183
GoodOver: STREAM
5.65 MI N OF US 150, Vermilion, IL
Built 1995 Load: 43.4 t ADT: 75
IL 7
GoodOver: MILNE CREEK
0.7 M E OF IL 171, Will, IL
Built 1988 Load: 43.4 t ADT: 15,200
HIGH ROAD
GoodOver: LONG RUN CREEK
1 MI S 135TH ST, Will, IL
Built 2008 Load: 43.4 t ADT: 1,450
MORSAY DR
GoodOver: KEITH CREEK,NORTH BR
0.03 MI E FAIRVIEW, Winnebago, IL
Built 1967 Load: 43.4 t ADT: 3,000
I-57
GoodOver: COPPER SLOUGH
.4 MI N FAI 72 INT, Champaign, IL
Built 1965 Load: 43.7 t ADT: 34,400
ILL 104
GoodOver: LAKE SANGCHRIS
.25 E SANG CO, Christian, IL
Built 1932 Load: 43.7 t ADT: 2,700
FAS 1707
GoodOver: East Mill Creek
2 Mi. W Marshall, Clark, IL
Built 2023 Load: 43.7 t ADT: 3,200
IL 133 (FAP 749)
GoodOver: HICKORY GROVE CREEK
1.0 MI W OF REDMON, Edgar, IL
Built 1936 Load: 43.7 t ADT: 1,900
FAS-1712 (CH-16)
GoodOver: BISHOP CREEK
3 MI W DIETRICH, Effingham, IL
Built 2022 Load: 43.7 t ADT: 775
SILVER CR RD - TR
GoodOver: LITTLER'S CREEK
NE-10-T8NR4E, Fulton, IL
Built 1992 Load: 43.7 t ADT: 250
US 6 FAU 5952
GoodOver: NETTLE CREEK
2.49 MI W OF IL 47, Grundy, IL
Built 2008 Load: 43.7 t ADT: 7,400
US ROUTE 34
GoodOver: INDIAN CREEK
0.2 MI W JCT ILL 78, Henry, IL
Built 1958 Load: 43.7 t ADT: 2,400
TR 94
GoodOver: CAMP CREEK
1.5 MI N ANDOVER, Henry, IL
Built 2008 Load: 43.7 t ADT: 50
CH 32
GoodOver: LOGAN HOLLOW
0.5 MI N OF IL 3, Jackson, IL
Built 1993 Load: 43.7 t ADT: 150
TR 217A
GoodOver: TRIB TO DITCH
3 MI. SO. IL 3, Jackson, IL
Built 2012 Load: 43.7 t ADT: 50
FOX RIVER DR
GoodOver: CLEAR CREEK
CH1 OVER CLAR CREEK, Kendall, IL
Built 2021 Load: 43.7 t ADT: 1,000
TR 244A(STOCKS RD)
GoodOver: MARROWBONE CR TRIB
.8 MI N SHELBY CO LI, Macon, IL
Built 1984 Load: 43.7 t ADT: 25
CH-3 (CH-S42)
GoodOver: S BRANCH CROW CREEK
T29N-R1W-3PM SEC 21, Marshall, IL
Built 2018 Load: 43.7 t ADT: 50
IL 336
GoodOver: WILDLIFE CROSSING
1.18MI N of US 136, McDonough, IL
Built 2016 Load: 43.7 t ADT: 1,600
I-55/I-74 NB
GoodOver: Union Pacific Railroad
2.4 MI S JCT ILL 9, McLean, IL
Built 1963 Load: 43.7 t ADT: 21,550
TR 244
GoodOver: POPE CREEK
SW-31-T14NR1W, Mercer, IL
Built 1983 Load: 43.7 t ADT: 25
PINES ROAD
GoodOver: BR. PINE CREEK
7 MI. E. POLO, Ogle, IL
Built 1990 Load: 43.7 t ADT: 1,550
FAP 841-IL 154
GoodOver: LITTLE BEAUCOUP CR
1.2 MI W US 51, Perry, IL
Built 2001 Load: 43.7 t ADT: 4,000
TR 183
GoodOver: LAKE FORK DRAIN DITC
3.5 MI NW ATWOOD, Piatt, IL
Built 2022 Load: 43.7 t ADT: 50
ILL 71
GoodOver: DRAINAGE DITCH
1.14 MI W OF ILL 89, Putnam, IL
Built 2015 Load: 43.7 t ADT: 4,700
FAI 74 SB
GoodOver: ROCK RIVER, SIDE RDS
S EDGE MOLINE, Rock Island, IL
Built 2002 Load: 43.7 t ADT: 15,750
Showing 24,051-24,100 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 |