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
WEIR RD
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1950 ADT: 94,864
LONYO AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1949 ADT: 112,162
MARTIN STREET
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1949 ADT: 140,776
LIVERNOIS AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1950 ADT: 140,776
JUNCTION ST
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1950 ADT: 121,602
14TH ST
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1953 ADT: 154,312
TRUMBULL AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2016 ADT: 144,545
M-10 EB
UnknownOver: I-94 RAMP
IN DETROIT, Wayne, MI
Built 1953 ADT: 116,000
M-10 EB
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1953 ADT: 118,166
I-94EB RMP TO M-10
UnknownOver: I-94 WB & M-10 SB
IN DETROIT RAMP B-G, Wayne, MI
Built 1953 ADT: 63,154
CSX RR
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1948 ADT: 121,602
CONRAIL
UnknownOver: I-94
IN DETROIT (E. BRIDGE), Wayne, MI
Built 1955 ADT: 154,312
BRUSH ST
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2019 ADT: 142,650
CHENE ST
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2018 ADT: 142,650
WB E GRAND BLVD
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2021 ADT: 149,050
EB E GRAND BLVD
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2021 ADT: 144,050
MT ELLIOT ST
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2021 ADT: 136,125
CONCORD AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2019 ADT: 142,650
FRONTENAC AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2022 ADT: 164,105
HARPER AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1958 ADT: 166,726
CHENE RAMP TO I-94
UnknownOver: E BD E GRAND BLVD
CITY OF DETROIT, Wayne, MI
Built 1983 ADT: 1,500
M-3 (GRATIOT)
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2018 ADT: 142,650
CADILLAC AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2022 ADT: 164,105
FRENCH ROAD
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2019 ADT: 142,650
SB CONNER AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1958 ADT: 148,534
NB CONNER AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1958 ADT: 128,570
DICKERSON AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1958 ADT: 130,650
WHITTIER RD
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1959 ADT: 130,650
CADIEUX AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1959 ADT: 130,650
MORANG AVE
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 1959 ADT: 130,650
MOROSS RD NB
UnknownOver: I-94
IN DETROIT, Wayne, MI
Built 2003 ADT: 130,650
WOODSIDE AVE
UnknownOver: I-94
IN HARPER WOODS, Wayne, MI
Built 1959 ADT: 130,650
MDOT RR CORRIDOR
UnknownOver: US-24
IN DEARBORN, Wayne, MI
Built 1937 ADT: 57,728
US-24 SB
UnknownOver: HINES DRIVE
IN DEARBORN HTS, Wayne, MI
Built 1959 ADT: 31,500
US-24 NB
UnknownOver: HINES DRIVE
IN DEARBORN HTS, Wayne, MI
Built 1959 ADT: 23,300
CSX RR
UnknownOver: US-12
IN WAYNE, Wayne, MI
Built 1931 ADT: 36,902
CSX RR
UnknownOver: US-12
IN DEARBORN 12600 W MICH, Wayne, MI
Built 1927 ADT: 28,335
CONRAIL
UnknownOver: US-12
@ MILLER & MICHIGAN AVE, Wayne, MI
Built 1927 ADT: 28,335
CONRAIL
UnknownOver: US-12
IN DETROIT, Wayne, MI
Built 1941 ADT: 12,118
CONRAIL
UnknownOver: I-75 RAMP C& NB OLD 25
IN LINCOLN PARK, Wayne, MI
Built 1966 ADT: 12,200
MILLER RD
UnknownOver: M-153
IN DEARBORN, Wayne, MI
Built 1940 ADT: 30,375
GREENFIELD RD
UnknownOver: M-153
IN DEARBORN, Wayne, MI
Built 1961 ADT: 65,932
EVERGREEN RD NB
UnknownOver: M-153
IN DEARBORN, Wayne, MI
Built 1972 ADT: 60,140
EVERGREEN RD SB
UnknownOver: M-153
IN DEARBORN, Wayne, MI
Built 1972 ADT: 60,140
CSX RR
UnknownOver: M-153
DEARBORN,300' W OF OAKMAN, Wayne, MI
Built 1973 ADT: 33,154
OLD M-39-SCHAEFER
UnknownOver: ENT TO FORD PLANT
IN DEARBORN, Wayne, MI
Built 1957 ADT: 20,000
HINES DRIVE
UnknownOver: OLD M-14 (ANN ARBOR RD)
IN LIVONIA, Wayne, MI
Built 1948 ADT: 25,314
NAPIER ROAD
UnknownOver: M-14
3 MI W OF PLYMOUTH, Wayne, MI
Built 1975 ADT: 55,818
N TERRITORIAL RD
UnknownOver: M-14
2.5 MI W OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 55,818
BECK ROAD
UnknownOver: M-14
1.0 MI W. OF PLYMOUTH, Wayne, MI
Built 1976 ADT: 73,280
Showing 151-200 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 |