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
ORCHARD LAKE ROAD
FairOver: UPPER ROUGE RIVER
BTWN M-5 & GRAND RIV AVE, Oakland, MI
Built 1955 Load: 12.1 t ADT: 12,500
USFS RTE 3199
FairOver: HENDRIE RIVER
5 MI N 2 MI W TROUT LAKE, Chippewa, MI
Built 1980 Load: 12.3 t ADT: 10
COUNTY ROAD H 42
FairOver: RAPID RIVER
10.5 M N 1.5 M W RAPID RI, Delta, MI
Built 1964 Load: 12.3 t ADT: 21
15TH STREET
FairOver: MILLER CREEK
APPROX 1/4MI S OF 128TH A, Allegan, MI
Built 1973 Load: 13.0 t ADT: 70
FOREST ROAD 5250
FairOver: M BR ONTONAGON RIVER
6 MI N 5 MI E OF WATERSM, Ontonagon, MI
Built 1954 Load: 13.0 t ADT: 50
GRISWOLD STREET
FairOver: MIDDLE ROUGE RIVER
NORTHVILLE N/MAIN ST, Wayne, MI
Built 1928 Load: 13.4 t ADT: 5,403
MAPLE ROAD
FairOver: HURON RIVER
ANN ARBOR TWP SEC 7, Washtenaw, MI
Built 1876 Load: 13.6 t ADT: 1,963
GUENTHER RD
FairOver: MILL CREEK
LIMA TWP SEC 34, Washtenaw, MI
Built 1944 Load: 14.3 t ADT: 139
SECOND AVE
FairOver: LOWER ROUGE RIVER
IN CITY OF WAYNE, Wayne, MI
Built 1976 Load: 14.3 t ADT: 2,457
3332
FairOver: CARP RIVER
3.062 WEST ON 3332, Mackinac, MI
Built 1951 Load: 14.6 t ADT: 15
NO DATA ENTERED
FairOver: BEAVER CREEK
T45N, R17W, SEC. 18, Schoolcraft, MI
Built 1996 Load: 14.6 t ADT: 50
BUNO ROAD
FairOver: HURON RIVER
MILFORD TWP SEC 28, Oakland, MI
Built 1940 Load: 15.0 t ADT: 750
FOREST ROAD 3470
FairOver: SOUTH BRANCH PAINT RIVER
3.3 MI N OF BEECHWOOD, Iron, MI
Built 1952 Load: 15.9 t ADT: 50
GRAHAM ROAD
FairOver: UPPER ROUGE RIVER
REDFORD W/TELEGRAPH, Wayne, MI
Built 1947 Load: 16.8 t ADT: 500
COLBY ROAD
FairOver: FISH CREEK
EVERGREEN TWP SEC 11-14, Montcalm, MI
Built 1980 Load: 17.2 t ADT: 164
FOREST ROAD 3350
FairOver: BUSH CREEK
4.5 MI NW GIBBS CITY, Iron, MI
Built 1955 Load: 17.8 t ADT: 50
LOTZ ROAD
FairOver: LOWER ROUGE RIVER
CANTON N/MICHIGAN, Wayne, MI
Built 1952 Load: 17.8 t ADT: 5,173
PENDELL ROAD
FairOver: DRAIN #290
SEC 1 SUMNER TWP, Gratiot, MI
Built 1978 Load: 18.2 t ADT: 116
KENNETH ROAD
FairOver: N. BRANCH CARP RIVER
3 M S & 5 M E OF OZARK, Mackinac, MI
Built 1979 Load: 18.5 t ADT: 125
SULLIVAN CREEK TR.
FairOver: BLACK CREEK
8 MI NW OF RUDYARD, Chippewa, MI
Built 1950 Load: 19.1 t ADT: 50
EAST DELHI ROAD
FairOver: HURON RIVER
SCIO TWP SEC 2, Washtenaw, MI
Built 1900 Load: 19.1 t ADT: 750
GIBRALTAR ROAD
FairOver: SILVER CREEK
FLATROCKE/TELEGRAPH, Wayne, MI
Built 1928 Load: 19.1 t ADT: 11,804
I-75 & RAMP A
FairOver: FRANK & POET DRAIN
IN TAYLOR, Wayne, MI
Built 1966 Load: 19.4 t ADT: 83,412
FULLER ROAD
FairOver: DICKERSON CREEK
MONTCALM TWP SEC 25, Montcalm, MI
Built 1974 Load: 20.0 t ADT: 75
DRIGGS RIVER ROAD
FairOver: DIVERSION DITCH
SEC 7 T45N R14W, Schoolcraft, MI
Built 1940 Load: 20.0 t ADT: 30
C-3 POOL ROAD
FairOver: DRIGGS RIVER
SEC 7 T45N R14W, Schoolcraft, MI
Built 1942 Load: 20.0 t ADT: 10
BAYSHORE DRIVE
FairOver: KELSEY CREEK
BARAGA TWP SEC 27, Baraga, MI
Built 2016 Load: 20.4 t ADT: 10
MAPLE GROVE ROAD
FairOver: HIGH BANKS CREEK
0.37MI E CHARLTON PARK RD, Barry, MI
Built 1970 Load: 20.4 t ADT: 500
SPRUCE AVE
FairOver: FIVE MILE CREEK
2.6 MI NE OF WHITE CLOUD, Newaygo, MI
Built 1954 Load: 20.7 t ADT: 450
FOREST ROAD 400
FairOver: CASCADE CREEK
4 MI N 5 MI E OF BERGLAND, Ontonagon, MI
Built 1963 Load: 21.1 t ADT: 50
FOREST ROAD 6930
FairOver: CISCO BR ONTONAGON RIVER
8 MI W OF PAULDING, Ontonagon, MI
Built 1951 Load: 21.1 t ADT: 50
FIFTH AVENUE
FairOver: PORTAGE RIVER
0.3 MI EAST OF US-131 BR, St. Joseph, MI
Built 1985 Load: 21.1 t ADT: 2,800
MARTINSVILLE ROAD
FairOver: BIG SWAN CREEK
SUMPTER N/JUDD, Wayne, MI
Built 1987 Load: 21.1 t ADT: 2,635
USFS RTE 2231
FairOver: STURGEON RIVER
SEC 17 NAHMA TWP, Delta, MI
Built 1948 Load: 21.4 t ADT: 10
MAIER ROAD
FairOver: FREMONT DRAIN
SEC 23 FREMONT TWP, Tuscola, MI
Built 1960 Load: 21.7 t ADT: 60
FOREST ROAD 2270
FairOver: STURGEON RIVER
S END OF PRICKETT LAKE, Houghton, MI
Built 1954 Load: 22.0 t ADT: 50
BEECH-DALY ROAD
FairOver: BELL CREEK
REDFORD TWP S/FIVE MILE, Wayne, MI
Built 1933 Load: 22.7 t ADT: 24,472
BEAVER ROAD
FairOver: KAWKAWLIN RIVER
200 FT W OF FOUR MILE RD, Bay, MI
Built 1928 Load: 23.0 t ADT: 3,404
THIRD STREET
FairOver: BRANDYWINE CREEK
0.5 MI S OF NILES, Berrien, MI
Built 1982 Load: 23.3 t ADT: 5,588
WHITE CREEK ROAD
FairOver: WHITE CREEK DRAIN #2
SEC 13-14 KOYLTON TWP, Tuscola, MI
Built 1980 Load: 23.3 t ADT: 800
FOREST ROAD 9300
FairOver: LITTLE PRESQUE ISLE RIV
3 MI N 4 MI W MARENISCO, Gogebic, MI
Built 1966 Load: 24.0 t ADT: 50
USFS RTE 3303
FairOver: BREVOORT RIVER
1.3 MI W CO RTE H57, Mackinac, MI
Built 1963 Load: 24.0 t ADT: 10
STANTON ROAD 522
FairOver: FISH CREEK
5 MI E OF STANTON, Montcalm, MI
Built 1920 Load: 24.4 t ADT: 3,223
PRATTVILLE ROAD
FairOver: E BR ST JOSEPH OF MAUMEE
0.4 MI W OF WALDRON RD, Hillsdale, MI
Built 1952 Load: 24.6 t ADT: 200
PRATT RD
FairOver: HONEY CREEK
SCIO TWP SEC 14 & 23, Washtenaw, MI
Built 1980 Load: 25.0 t ADT: 233
PARKS ROAD
FairOver: MAPLE RIVER
0.2 MI W OF SHEPARDSVILLE, Clinton, MI
Built 1920 Load: 25.1 t ADT: 107
MARTZ RD
FairOver: PAINT CREEK
YPSILANTI TWP SEC 34, Washtenaw, MI
Built 1965 Load: 25.7 t ADT: 4,021
20TH STREET
FairOver: MILLER CREEK
APPROX 0.1 MI S OF 128TH, Allegan, MI
Built 1968 Load: 25.9 t ADT: 1,327
HUNTERS CREEK ROAD
FairOver: SOUTH BR. FLINT RIVER
SEC26-35LAPEERTWP., Lapeer, MI
Built 1985 Load: 25.9 t ADT: 90
BARNES ROAD
FairOver: SQUAW CREEK DRAIN
SEC. 21-28 RICH TWP., Lapeer, MI
Built 1994 Load: 25.9 t ADT: 880
Showing 451-500 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 |