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
M-14 WB
UnknownOver: SHELDON ROAD
1.2 MI W OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 23,100
ROBINWOOD DRIVE
UnknownOver: M-14
0.3 MI NORTH OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 93,826
SCHOOLCRAFT CONN
UnknownOver: M-14
1 MI W OF W CTY LTS LIVON, Wayne, MI
Built 1977 ADT: 93,826
CSX RR
UnknownOver: M-14
0.5 MI NORTH OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 93,826
HAMILTON AVENUE
UnknownOver: M-8, DAVISON FWY
HIGHLAND PARK E/LODGE FWY, Wayne, MI
Built 1996 ADT: 79,030
JOHN R STREET
UnknownOver: M-8, DAVISON FWY
HIGHLAND PARK E/WOODWARD, Wayne, MI
Built 1996 ADT: 80,714
EB M-8 RMP TO I-75
UnknownOver: S SERVICE DRIVE, M-8
IN DETROIT O S SERVICE RD, Wayne, MI
Built 1971 ADT: 7,500
MONROE AVE
UnknownOver: I-375
IN DETROIT, Wayne, MI
Built 1959 ADT: 48,074
LAFAYETTE AVE
UnknownOver: I-375
IN DETROIT, Wayne, MI
Built 1960 ADT: 48,074
CHRYSLER DR
UnknownOver: I-375
IN DETROIT, Wayne, MI
Built 1962 ADT: 19,243
WASHINGTON ST
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1958 ADT: 74,078
LARNED ST RAMP
UnknownOver: M-10 NB
IN DETROIT, Wayne, MI
Built 1959 ADT: 37,039
M-85 (FORT ST,)
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1958 ADT: 74,300
LAFAYETTE BLVD
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1952 ADT: 74,300
HOWARD ST
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1953 ADT: 74,300
US-12
UnknownOver: M-10 NB
IN DETROIT, Wayne, MI
Built 1954 ADT: 52,258
US-12
UnknownOver: M-10 SB
IN DETROIT, Wayne, MI
Built 1954 ADT: 52,258
MLK JR BLVD EB
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 2017 ADT: 98,775
FOREST AVE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1950 ADT: 129,400
WARREN AV
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1950 ADT: 129,400
CLAIRMOUNT AVENUE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1954 ADT: 126,934
CHICAGO BLVD
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1955 ADT: 132,618
GLENDALE AVE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1955 ADT: 134,688
M-8 EB DAVISON
UnknownOver: M-10 SB
IN DETROIT OVER M-10 SB, Wayne, MI
Built 1956 ADT: 78,042
NB TO WB DAVISON
UnknownOver: M-10 SB
IN DETROIT, Wayne, MI
Built 1957 ADT: 78,042
OAKMAN BLVD
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1955 ADT: 156,084
ROSA PARKS BLVD
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1957 ADT: 156,084
LINWOOD AVE
UnknownOver: M-10 JOHN LODGE FRWY
IN DETROIT, Wayne, MI
Built 1955 ADT: 156,084
DEXTER-BELDEN AVE
UnknownOver: M-10 JOHN LODGE FRWY
IN DETROIT, Wayne, MI
Built 1955 ADT: 155,986
LIVERNOIS AVE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1955 ADT: 157,070
WYOMING AVE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1955 ADT: 157,070
MYERS RD TURNAROUN
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1963 ADT: 150,070
OUTER DRIVE EB
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1964 ADT: 124,630
OUTER DRIVE WB
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1964 ADT: 124,630
SCHAEFER SE TURN
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1964 ADT: 124,630
7 MI RD
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1964 ADT: 124,630
PEMBROKE AVE
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1963 ADT: 123,644
M-102 RAMP
UnknownOver: M-10 RAMP
N LTS OF DETROIT, Wayne, MI
Built 1965 ADT: 9,500
GREENFIELD RD LF T
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1964 ADT: 70,270
LIVERNOIS AV UTURN
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1987 ADT: 157,070
CONRAIL
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1949 ADT: 126,308
CONRAIL
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1957 ADT: 156,084
GTW RR
UnknownOver: M-5, GRAND RIVER AVE
IN DETROIT (W BRIDGE), Wayne, MI
Built 1936 ADT: 8,109
NEWBURGH RD
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1974 ADT: 131,900
FARMINGTON RD
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1974 ADT: 136,900
MERRIMAN RD
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1974 ADT: 157,688
WARNER COURT
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1974 ADT: 145,800
RACE TRACK ENTRC
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1971 ADT: 145,000
CARDWELL RD
UnknownOver: I-96
IN LIVONIA, Wayne, MI
Built 1971 ADT: 145,000
GARFIELD ST U-TRN
UnknownOver: I-96
IN REDFORD TWP, Wayne, MI
Built 1974 ADT: 139,400
Showing 201-250 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 |