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
CROSS STREET
PoorOver: HURON RIVER
IN CITY OF YPSILANTI, Washtenaw, MI
Built 1984 Load: 19.4 t ADT: 5,000
CHESTNUT
PoorOver: CLAM RIVER
IN CADILLAC, Wexford, MI
Built 1968 Load: 19.8 t ADT: 12,000
FAWN RIVER ROAD
PoorOver: FAWN RIVER
0.7 MI WEST OF FAWN RIVER, St. Joseph, MI
Built 1964 Load: 20.1 t ADT: 1,441
E N HINES DRIVE
PoorOver: MIDDLE ROUGE RIVER
WESTLAND W/MERRIMAN, Wayne, MI
Built 1948 Load: 20.4 t ADT: 14,193
STONY CREEK ROAD
PoorOver: PAINT CREEK
YPSILANTI TWP SEC 20 & 21, Washtenaw, MI
Built 1920 Load: 20.7 t ADT: 8,856
OLD DIXBORO ROAD
PoorOver: HURON RIVER
ANN ARBOR TWP SEC 36, Washtenaw, MI
Built 1921 Load: 20.8 t ADT: 16,342
FRASER ST
PoorOver: KAWKAWLIN RIVER
100' E OF CHIP RD., Bay, MI
Built 1959 Load: 22.0 t ADT: 784
JERUSALEM ROAD
PoorOver: MILL CREEK
LIMA TWP SEC 23 & 26, Washtenaw, MI
Built 1974 Load: 22.2 t ADT: 129
CHERRY HILL RD
PoorOver: FLEMING CREEK
SUPERIOR TWP SEC 18, Washtenaw, MI
Built 1980 Load: 22.4 t ADT: 1,941
US-12BR, M-17
PoorOver: HURON RIVER
IN YPSILANTI (E MICH AVE), Washtenaw, MI
Built 1912 Load: 24.3 t ADT: 21,936
OLD-27
PoorOver: STATE AND INDIAN CREEK
LEE TWP SEC 18, Calhoun, MI
Built 1931 Load: 24.9 t ADT: 2,925
DIX ROAD
PoorOver: ROUGE RIVER
DEARBORN/DETROIT W/MILLER, Wayne, MI
Built 1927 Load: 25.3 t ADT: 11,218
WARRENDALE DRIVE
PoorOver: MIDDLE ROUGE RIVER
DBN HTS S/E N HINES DRV, Wayne, MI
Built 1959 Load: 26.6 t ADT: 800
WILLIS ROAD
PoorOver: PAINT CREEK
AUGUSTA TWP SEC 3 & 10, Washtenaw, MI
Built 1924 Load: 26.8 t ADT: 6,209
E N HINES DRIVE
PoorOver: MIDDLE ROUGE RIVER
PLYMOUTH TWP E/I-275, Wayne, MI
Built 1932 Load: 27.2 t ADT: 7,365
NORTHVILLE ROAD
PoorOver: MIDDLE ROUGE RIVER
NORTHVILE T S/SEVEN MILE, Wayne, MI
Built 1959 Load: 27.5 t ADT: 15,628
ELBA DRIVE
PoorOver: ELBA CANAL
GROSSE ILE E/E RIVER RD, Wayne, MI
Built 1934 Load: 28.8 t ADT: 1,000
M-46
PoorOver: SEVILLE SUMNER DRAIN
@ PINGREE RD, Gratiot, MI
Built 1936 Load: 29.5 t ADT: 5,634
MCGLYNN ROAD
PoorOver: CEDAR CREEK
0.7 MI E OF M-37, Barry, MI
Built 1970 Load: 29.8 t ADT: 100
HOLDEN ROAD
PoorOver: E BR GALIEN RIVER
WEESAW TWP SEC 3-4, Berrien, MI
Built 2000 Load: 31.4 t ADT: 187
M-61
PoorOver: M BR PINE RIVER
2.0 MI W OF STANDISH, Arenac, MI
Built 1952 Load: 31.8 t ADT: 4,242
ASHBURY DRIVE
PoorOver: MIDDLE BR ROUGE RIVER
CHASE FARMS SUBDIVISION, Oakland, MI
Built 1991 Load: 32.7 t ADT: 100
DUNCAN ST
PoorOver: RIVER RAISIN
IN VILLAGE OF MANCHESTER, Washtenaw, MI
Built 1970 Load: 32.7 t ADT: 2,300
I-96 RAMP
PoorOver: OPEN GROUND
IN DETROIT, Wayne, MI
Built 1973 Load: 32.7 t ADT: 18,870
SUMPTER ROAD
PoorOver: SWAN CREEK
SUMPTER S/WILLIS, Wayne, MI
Built 1950 Load: 32.7 t ADT: 5,924
NORTH MARSHALL RD
PoorOver: COLD CREEK
COLDWATER TWP SEC 3-4, Branch, MI
Built 1930 Load: 33.3 t ADT: 5,588
HAGGERTY ROAD
PoorOver: FELLOWS CREEK
CANTON S/FORD, Wayne, MI
Built 1930 Load: 34.3 t ADT: 14,842
US-23 SB, M-14 EB
PoorOver: MDOT RR CORRIDOR
0.9 MI E OF W JCT M-14, Washtenaw, MI
Built 1962 Load: 34.7 t ADT: 36,627
MCKALE ROAD
PoorOver: PRAIRIE RIVER
4.5 MI NE OF STURGIS, St. Joseph, MI
Built 1965 Load: 35.3 t ADT: 77
M-3 (GRATIOT AVE)
PoorOver: DEQUINDRE CUT
IN DETROIT, Wayne, MI
Built 1929 Load: 35.3 t ADT: 19,649
GENESEE STREET
PoorOver: FARMERS CR
1450 FT EAST OF M24 JUNCT, Lapeer, MI
Built 1933 Load: 35.6 t ADT: 16,489
I-75 RAMP H & M
PoorOver: SWARTZ CREEK
WB I-69 RMP TO NB I-75, Genesee, MI
Built 1969 Load: 36.3 t ADT: 33,600
GIBRALTAR ROAD
PoorOver: BROWNSTOWN CREEK
GIBRALTAR W/JEFFERSON, Wayne, MI
Built 1976 Load: 37.9 t ADT: 9,406
GIBRALTAR ROAD
PoorOver: FRANK & POET DRAIN
GIBRALTAR E/JEFFERSON, Wayne, MI
Built 1932 Load: 38.2 t ADT: 6,206
MIDDLE BELT ROAD
PoorOver: LOWER ROUGE RIVER
INKSTER N/MICHIGAN, Wayne, MI
Built 1924 Load: 39.5 t ADT: 23,978
HANNAN ROAD
PoorOver: LOWER ROUGE RIVER
CANTON/WAYNE N/MICHIGAN, Wayne, MI
Built 1955 Load: 39.9 t ADT: 3,368
DUCK CREEK ROAD
PoorOver: DUCK CREEK
7.6 N/US-2, 9.2 E/M-94, Schoolcraft, MI
Built 1922 Load: 40.5 t ADT: 5
I-96 RAMP
PoorOver: LAND
IN DETROIT, Wayne, MI
Built 1973 Load: 41.5 t ADT: 18,870
I-296 NB ON RAMP D
PoorOver: PARKING LOT/RELIEF
IN GRAND RAPIDS, Kent, MI
Built 1963 Load: 43.1 t ADT: 4,500
ANDRUS ROAD
PoorOver: COLDWATER RIVER
1 MI S OF M-43, Barry, MI
Built 1970 Load: 46.7 t ADT: 50
NB M-39 SERVICE DR
PoorOver: NORTH BR. ECORSE RIVER
IN ALLEN PARK, Wayne, MI
Built 1962 Load: 48.0 t ADT: 8,800
17 MILE ROAD
PoorOver: MIDDLE BRANCH RIVER
MIDDLE BR TWP SEC 3/10, Osceola, MI
Built 1965 Load: 48.9 t ADT: 153
LONGNECKER RD
PoorOver: BEAR CREEK
0.22 MI W OF FULTON RD, St. Joseph, MI
Built 1969 Load: 49.9 t ADT: 57
M-39
PoorOver: ECORSE CREEK
IN ALLEN PARK, Wayne, MI
Built 1963 Load: 50.5 t ADT: 92,920
LEATON ROAD
PoorOver: JORDAN CREEK
0.37 MI S BEAL CITY ROAD, Isabella, MI
Built 1970 Load: 53.1 t ADT: 100
RUSH ROAD
PoorOver: LITTLE THORNAPPLE RIVER
550 FT S OF JORDAN RD, Barry, MI
Built 1972 Load: 65.8 t ADT: 50
WILLITS STREET
PoorOver: ROUGE RIVER
0.3 MI W OF N OLDWOODWARD, Oakland, MI
Built 1961 Load: 82.0 t ADT: 779
MACKINAW ROAD
PoorOver: SELLECK DRAIN
0.5 MI S OF MT FOREST RD, Bay, MI
Built 1975 Load: 91.7 t ADT: 335
M-43 (W SAGINAW)
PoorOver: CARRIER CREEK
0.4 MI W OF CREYTS ROAD, Eaton, MI
Built 1956 Load: 97.2 t ADT: 26,200
WOODLAND ROAD
Structurally DeficientOver: AU TRAIN RIVER
0.75 MI E OF AU TRAIN, Alger, MI
Built 1910
Showing 1,101-1,150 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 |