Total Bridges
1,188
Public highway bridges in Michigan
State profile · Above national median SD
Michigan bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Michigan — drawn straight from the FHWA National Bridge Inventory.
- 1,188
- Public bridges
- 28.4%
- Good condition
- 8.9%
- Poor condition
- 8.9%
- Structurally deficient
Good Condition
28.4%
337 bridges rated 7-9
-21.6pp vs 50% benchmark
Poor Condition
8.9%
106 bridges rated 0-4
Structurally Deficient
8.9%
106 bridges flagged for repair priority
1.9pp vs national avg 7.0%
Michigan vs national bridge condition
Michigan — Good condition share 28.4%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Michigan — Structurally deficient share 29.7%
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 — Michigan (FHWA NBI)
Counties (83)
Alcona 8 Alger 9 Allegan 25 Alpena 3 Antrim 0 Arenac 2 Baraga 9 Barry 10 Bay 10 Benzie 3 Berrien 22 Branch 9 Calhoun 16 Cass 3 Charlevoix 3 Cheboygan 7 Chippewa 12 Clare 13 Clinton 9 Crawford 5 Delta 5 Dickinson 0 Eaton 8 Emmet 4 Genesee 15 Gladwin 6 Gogebic 11 Grand Traverse 5 Gratiot 10 Hillsdale 3 Houghton 9 Huron 4 Ingham 5 Ionia 3 Iosco 0 Iron 8 Isabella 12 Jackson 3 Kalamazoo 12 Kalkaska 0 Kent 37 Keweenaw 0 Lake 0 Lapeer 13 Leelanau 2 Lenawee 3 Livingston 6 Luce 2 Mackinac 7 Macomb 21 Manistee 2 Marquette 8 Mason 4 Mecosta 2 Menominee 2 Midland 10 Missaukee 2 Monroe 9 Montcalm 7 Montmorency 3 Muskegon 5 Newaygo 7 Oakland 49 Oceana 3 Ogemaw 0 Ontonagon 5 Osceola 3 Oscoda 1 Otsego 2 Ottawa 7 Presque Isle 2 Roscommon 5 Saginaw 4 Sanilac 1 Schoolcraft 16 Shiawassee 2 St. Clair 14 St. Joseph 8 Tuscola 29 Van Buren 17 Washtenaw 93 Wayne 460 Wexford 14
Michigan 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 Michigan on the same metric.
25
Massachusetts
7.96% top marginal rate
29
Missouri
8.53% top marginal rate
26
Michigan
8.92% top marginal rate
02
Alaska
10.12% top marginal rate
42
Pennsylvania
10.50% top marginal rate
Bridges Needing Most Attention in Michigan
Six lowest-condition bridges in Michigan, ranked by composite NBI rating. Each is inspected at least every 24 months.
STEVENSON ROAD
Structurally DeficientOver: S BR PINE RIVER
0.5 MI W OF NINE MILE RD, Bay, MI
Built 1970 Load: 0.3 t ADT: 150
NO 19 ROAD
Structurally DeficientOver: MANISTEE RIVER
SECTION 28 T24N R11W, Wexford, MI
Built 1906 Load: 2.9 t ADT: 106
PARKE LANE ROAD
Structurally DeficientOver: THOROFARE CH(GROSSE ILE)
GROSSE ILETWP S/BRIDGE ST, Wayne, MI
Built 1930 Load: 3.2 t ADT: 1,365
STREICHER ROAD
PoorOver: SILVER CREEK
BROWNSTOWN S/HURON RIV DR, Wayne, MI
Built 1936 Load: 7.8 t ADT: 253
REECK ROAD
Structurally DeficientOver: SEXTON-KILFOIL DRAIN
IN ALLEN PARK, Wayne, MI
Built 1960 Load: 7.8 t ADT: 5,600
LOG ROAD
Structurally DeficientOver: SOUTH BR SWAN CREEK
BETHEL TWP SEC 8, Branch, MI
Built 1982 Load: 8.1 t ADT: 110
All Bridges in Michigan
C&O RAILROAD
UnknownOver: CHASE RD
IN DEARBORN, Wayne, MI
Built 1900 ADT: 9,600
CONRAIL
UnknownOver: LIVERNOIS AVE
N OF TOLEDO, Wayne, MI
Built 1928 ADT: 12,087
NORFOLK SOUTHRN RR
UnknownOver: LIVERNOIS AVE
N OF TOLEDO, Wayne, MI
Built 1928 ADT: 9,042
CONRAIL
UnknownOver: LIVERNOIS AVE
S OF JOHN KRONK, Wayne, MI
Built 1936 ADT: 29,757
GRAND TRUNK W RR
UnknownOver: WARREN AVE
W OF GRAND RIVER, Wayne, MI
Built 1905 ADT: 14,377
CONRAIL & C&O RRS
UnknownOver: M-85 (FORT ST)
FORT ST WEST OF DEARBORN, Wayne, MI
Built 1929 ADT: 10,722
NS RR
UnknownOver: M-85 (FORT ST)
FORT ST WEST OF LAWNDALE, Wayne, MI
Built 1924 ADT: 10,722
CONRAIL
UnknownOver: SPRINGWELLS AVE
N OF FISHER FREEWAY, Wayne, MI
Built 1930 ADT: 10,608
CONRAIL
UnknownOver: CENTRAL AVE
S OF MICHIGAN, Wayne, MI
Built 1913 ADT: 11,365
CONRAIL
UnknownOver: VERNOR HWY
W OF LIVERNOIS, Wayne, MI
Built 1924 ADT: 21,139
CONRAIL
UnknownOver: LONYO ROAD
S OF JOHN KRONK, Wayne, MI
Built 1913 ADT: 10,836
CONRAIL
UnknownOver: LONYO ROAD
S OF JOHN KRONK, Wayne, MI
Built 1913 ADT: 10,836
CONRAIL
UnknownOver: LONYO ROAD
S OF JOHN KRONK, Wayne, MI
Built 1913 ADT: 10,836
CONRAIL
UnknownOver: TWELFTH ST
N OF KIRBY, Wayne, MI
Built 1917 ADT: 5,813
CONRAIL
UnknownOver: BRUSH ST
S OF MILWAUKEE, Wayne, MI
Built 1911 ADT: 6,632
CONRAIL
UnknownOver: BRUSH ST
S OF MILWAUKEE, Wayne, MI
Built 1911 ADT: 6,632
GTWRR & CONR
UnknownOver: BRUSH ST
S OF MILWAUKEE, Wayne, MI
Built 1911 ADT: 6,632
CONRAIL
UnknownOver: RUSSELL ST
S OF TROMBLY, Wayne, MI
Built 1929 ADT: 16,257
NORFOLK SOUTHRN RR
UnknownOver: JUNCTION AVE
S OF KONKEL, Wayne, MI
Built 1907 ADT: 5,627
CONRAIL
UnknownOver: RUSSELL ST
N OF E GRAND BOULEVARD, Wayne, MI
Built 1912 ADT: 6,030
NORFOLK SOUTHRN RR
UnknownOver: LAWNDALE
N OF FORT, Wayne, MI
Built 1930 ADT: 2,287
CONRAIL
UnknownOver: LAWTON
S OF WARREN, Wayne, MI
Built 1926 ADT: 1,400
CONRAIL
UnknownOver: LINCOLN
S OF W GRAND BLVD, Wayne, MI
Built 1916 ADT: 2,506
GTW RR
UnknownOver: LINCOLN
S OF W GRAND BLVD, Wayne, MI
Built 1916 ADT: 2,506
CONRAIL
UnknownOver: COMMONWEALTH
S OF W GRAND BLVD, Wayne, MI
Built 1916 ADT: 420
CONRAIL
UnknownOver: HOLDEN
S OF W GRAND BLVD, Wayne, MI
Built 1916 ADT: 3,225
GTW RR
UnknownOver: MCKINLEY
N OF MYRTLE, Wayne, MI
Built 1933 ADT: 345
CONRAIL
UnknownOver: ROOSEVELT
S OF BUCHANAN, Wayne, MI
Built 1933 ADT: 590
GTW RR
UnknownOver: ROOSEVELT
S OF BUCHANAN, Wayne, MI
Built 1933 ADT: 590
VINING RD
UnknownOver: I-94
CITY OF ROMULUS, Wayne, MI
Built 1996 ADT: 112,408
RAMP A (WB)
UnknownOver: M-14
0.9 MI W OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 93,826
CSX RAILROAD
UnknownOver: NEWBURGH ROAD
CITY OF WESTLAND, Wayne, MI
Built 1996 ADT: 23,300
SB RMP/TERMINAL DR
UnknownOver: LOWER ACC'S RD&ROGELL DR
DETROIT METRO AIRPORT, Wayne, MI
Built 1997 ADT: 3,500
SB I-75 EXIT RAMP
UnknownOver: EB I-96
AMBASSADOR GATEWAY, Wayne, MI
Built 2007 ADT: 35,000
CSX RR
UnknownOver: SHELDON ROAD
PLYMOUTH TWP, Wayne, MI
Built 2006 ADT: 23,900
MIDFIELD RMP A, A2
UnknownOver: MIDFIELD RAMP B2
MIDFIELD TERMINIAL, Wayne, MI
Built 2002
SB DINGELL RD
UnknownOver: EAST SERVICE RD
0.8 MI S OF I-94, Wayne, MI
Built 2000 ADT: 1,566
MIDFIELD RAMP C1
UnknownOver: DINGELL RD
1.2 MI N OF EUREKA, Wayne, MI
Built 2002 ADT: 15,763
PLAZA TO I-75
UnknownOver: NB&SB RMPS TO VERNOR
AMBASSADOR GATEWAY, Wayne, MI
Built 2007 ADT: 862
TOLEDO-DIX HWY
UnknownOver: I-75
N OF WOODHAVEN, Wayne, MI
Built 2012 ADT: 102,180
US-131 SB
UnknownOver: 50 MILE RD
5 MI S OF CADILLAC, Wexford, MI
Built 1966 ADT: 60
US-131 NB
UnknownOver: 50 MILE RD
5 MI S OF CADILLAC, Wexford, MI
Built 1966 ADT: 60
NO. 30 ROAD
UnknownOver: US-131
2 MI N OF BOON ROAD, Wexford, MI
Built 2000 ADT: 7,150
US-131 SB
UnknownOver: OLD US-131
5.8 MI N OF M-55, Wexford, MI
Built 2000 ADT: 4,397
CONGDON ROAD
FairOver: GAYLORD/MAC RAIL TRAIL
0.4 W OF OLD 27, Otsego, MI
Built 2009 Load: 1.6 t ADT: 200
SECOND STREET
FairOver: KALAMAZOO RIVER
CITY OF ALLEGAN, Allegan, MI
Built 1886 Load: 3.2 t ADT: 2,582
DIVISION DRIVE
FairOver: WILDER CREEK
MARENGO TWP SEC 33, Calhoun, MI
Built 1974 Load: 4.9 t ADT: 760
SOUTHSIDE RD
FairOver: GRINDSTONE CREEK
2.0 MI N OF HIAWATHA, Schoolcraft, MI
Built 1991 Load: 5.5 t ADT: 24
SAND LAKE ROAD
FairOver: SAND RIVER
0.25 MI S OF SAND RIVER, Alger, MI
Built 1915 Load: 8.1 t ADT: 50
DANCER ROAD
FairOver: MILL CREEK
LIMA TWP SEC 26 & 27, Washtenaw, MI
Built 1928 Load: 10.1 t ADT: 149
Showing 401-450 of 1,188 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 |