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-15
GoodOver: CLINTON RIVER
INDEPENDENCE TWP SEC 20, Oakland, MI
Built 2005 Load: 41.5 t ADT: 16,486
COLONY DRIVE
GoodOver: UNNAMED CANAL
0.7 MI W OF VAN DYKE, St. Clair, MI
Built 1995 Load: 41.5 t ADT: 500
NEPESSING STREET
GoodOver: FLINT RIVER
3265 FT EAST OF M24 JUNCT, Lapeer, MI
Built 1973 Load: 41.8 t ADT: 5,850
DEXTER-PINCKNEY RD
GoodOver: PORTAGE LAKE CANAL
DEXTER TWP SECTION 2, Washtenaw, MI
Built 2010 Load: 41.8 t ADT: 7,407
HERMAN ROAD
GoodOver: DENOMIE CREEK
L'ANSE TWP SEC 22, Baraga, MI
Built 2003 Load: 42.1 t ADT: 296
OLD US-41
GoodOver: KELSEY CREEK
BARAGA TWP SEC 27-28, Baraga, MI
Built 2004 Load: 42.1 t ADT: 113
WOLF LAKE ROAD
GoodOver: BLACK CREEK
EGELSTON TWP SEC 32/33, Muskegon, MI
Built 2006 Load: 42.2 t ADT: 2,564
37TH STREET
GoodOver: GULL LAKE OUTLET
ROSS TWP SEC 31, Kalamazoo, MI
Built 2012 Load: 42.4 t ADT: 1,600
BRIDGE STREET
GoodOver: ROUGE RIVER
N OF 8 MILE RD, Oakland, MI
Built 2001 Load: 42.4 t ADT: 1,234
FILION ROAD
GoodOver: TAFT DRAIN
SEC. 15-22 MEADE TWP., Huron, MI
Built 1995 Load: 42.5 t ADT: 930
PARKER RD
GoodOver: MILL CREEK
SCIO TWP SEC 18, Washtenaw, MI
Built 2007 Load: 42.6 t ADT: 2,867
WHITTAKER ROAD
GoodOver: PAINT CREEK
YPSILANTI TWP SEC 28, Washtenaw, MI
Built 2007 Load: 42.7 t ADT: 11,389
RIDGE RD
GoodOver: ROUGE RIVER
RIDGE S OF MCNICHOLS, Wayne, MI
Built 2009 Load: 42.7 t ADT: 612
ALEXANDER STREET
GoodOver: MCCOY CREEK MILL RACE
CITY OF BUCHANAN, Berrien, MI
Built 1998 Load: 42.8 t ADT: 100
I-75 NB
GoodOver: SEXTON AND KILFOIL DRAIN
IN ALLEN PARK, Wayne, MI
Built 2018 Load: 42.8 t ADT: 40,500
FENCE LAKE ROAD
GoodOver: SPRUCE RIVER
3 MI S OF THREE LAKES, Baraga, MI
Built 1993 Load: 42.9 t ADT: 28
M-40
GoodOver: S BR MACATAWA RIVER
4.0 MI SE OF OTTAWA COL, Allegan, MI
Built 2000 Load: 43.1 t ADT: 11,124
M-6 WB
GoodOver: BUCK CREEK
BYRON TWP SEC 1, Kent, MI
Built 2000 Load: 43.1 t ADT: 26,271
KENDAVILLE ROAD
GoodOver: HERRON DRAIN
0.2 MI EAST OF FEDERAL RD, Montcalm, MI
Built 2014 Load: 43.1 t ADT: 1,525
SOUTH MAIN STREET
GoodOver: FALLS RIVER
VILLAGE OF L'ANSE, Baraga, MI
Built 2010 Load: 43.4 t ADT: 381
BRUTUS ROAD
GoodOver: MAPLE RIVER
SEC 24&25 MAPLE RIVER TWP, Emmet, MI
Built 2016 Load: 43.4 t ADT: 976
FDR8100
GoodOver: SO BR PRESQUE ISLE RIVER
6 MI S OF MARENISCO, Gogebic, MI
Built 2021 Load: 43.4 t ADT: 20
NO DATA ENTERED
GoodOver: W BR PRESQUE ISLE RIVER
6 MI SW OF MARENISCO, Gogebic, MI
Built 2018 Load: 44.1 t ADT: 50
M-46
GoodOver: SUCKER CREEK
2.8 MI E OF M-24, Tuscola, MI
Built 2012 Load: 44.4 t ADT: 4,040
WEST ROAD
GoodOver: FRANK & POET DRAIN
TRENTON W/FORT, Wayne, MI
Built 2020 Load: 44.4 t ADT: 23,000
BELSAY ROAD
GoodOver: KEARSLEY CREEK
BET DAVISON & RICHFIELD, Genesee, MI
Built 1994 Load: 44.7 t ADT: 12,023
I-275 SB
GoodOver: TONQUISH CR
3.5 MI SE OF PLYMOUTH, Wayne, MI
Built 1972 Load: 44.7 t ADT: 63,759
FDR3350
GoodOver: BUSH CREEK
19 MI E 9 MI N WATERSMEET, Iron, MI
Built 2021 Load: 45.0 t ADT: 100
FDR 3610
GoodOver: JUMBO RIVER
7 MI S OF KENTON, Iron, MI
Built 2021 Load: 45.0 t ADT: 20
WHEELING ROAD
GoodOver: NORTH BR. MILL CREEK DN.
SEC. 11-12 GOODLAND TWP., Lapeer, MI
Built 2004 Load: 45.0 t ADT: 39
I-75 SB
GoodOver: SANDY CREEK
1.2 MI NE OF M-50, Monroe, MI
Built 2016 Load: 45.0 t ADT: 25,200
HOSSLER ROAD
GoodOver: THUNDER BAY RIVER
SECTION 20 BRILEY TWP, Montmorency, MI
Built 1962 Load: 45.0 t ADT: 120
NO DATA ENTERED
GoodOver: TENDERFOOT CREEK
NO DATA ENTERED, Gogebic, MI
Built 1981 Load: 45.4 t ADT: 50
FORSMAN RD
GoodOver: GOOSENECK CREEK
0.7 MI E OF AIRPORT PK RD, Houghton, MI
Built 2019 Load: 45.4 t ADT: 86
210TH AVENUE
GoodOver: PINE RIVER
BURDELL TWP SEC 21/22, Osceola, MI
Built 2003 Load: 45.4 t ADT: 133
S GIBRALTAR
GoodOver: FRANK & POET DRAIN
GIBRALTAR E/JEFFERSON, Wayne, MI
Built 1992 Load: 45.4 t ADT: 2,929
IRR BIA RTE 1162
GoodOver: DRAINAGE TO HORTON CREEK
LITTLE TRAVERSE BAY, Charlevoix, MI
Built 2009 Load: 45.5 t ADT: 50
TALLADAY ROAD
GoodOver: PAINT CREEK
AUGUSTA TWP SEC 15 & 22, Washtenaw, MI
Built 2003 Load: 45.9 t ADT: 357
54TH STREET
GoodOver: M BR BLACK RIVER
LEE TWP SEC 21-22, Allegan, MI
Built 2004 Load: 46.3 t ADT: 140
BALDWIN AVENUE
GoodOver: ROUGE RIVER
0.03 MI N OF W MAPLE, Oakland, MI
Built 2009 Load: 46.3 t ADT: 150
M-85 (FORT ST)
GoodOver: NORFOLK WESTERN RR
FORT ST, Wayne, MI
Built 2010 Load: 46.3 t ADT: 5,981
RIVER STREET
GoodOver: CLAM RIVER
IN CADILLAC, Wexford, MI
Built 2005 Load: 46.3 t ADT: 3,400
THORNAPPLE RVR DR
GoodOver: CSX RR
1.0 MILE N OF 48TH STREET, Kent, MI
Built 2004 Load: 46.5 t ADT: 21,000
CRUZEN ROAD
GoodOver: PINE RIVER
MIKADO TWP SEC 3/4, Alcona, MI
Built 2001 Load: 46.7 t ADT: 290
TAFT ROAD
GoodOver: OTTER CREEK
FULTON TWP SEC 19, Gratiot, MI
Built 2012 Load: 46.7 t ADT: 92
WHITE RD
GoodOver: CRANBERRY CREEK
0.46 MI N OF COHOCTAH RD, Livingston, MI
Built 2023 Load: 46.7 t ADT: 54
M-53 NB
GoodOver: EAST POND CREEK
BRUCE TWP SEC 35-36, Macomb, MI
Built 2002 Load: 46.7 t ADT: 14,182
ST CHARLES ROAD
GoodOver: BAD RIVER
SEC 26-35 LAFAYETTE TWP, Gratiot, MI
Built 1990 Load: 46.9 t ADT: 144
MCKINLEY ROAD
GoodOver: MILL CREEK FORK
LIMA TWP SEC 6, Washtenaw, MI
Built 2012 Load: 47.0 t ADT: 200
ON RAMP @ GRNFLD.
GoodOver: LAND
IN DETROIT, Wayne, MI
Built 1973 Load: 47.0 t ADT: 12,580
Showing 901-950 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 |