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
CANAL ROAD
GoodOver: CANADIAN NATIONAL RR
WINDSOR TWP SEC 3-4, Eaton, MI
Built 2004 Load: 71.9 t ADT: 7,624
TANK SITE NO 1
GoodOver: E BR AU SABLE RIVER
0.15 MI N OF JONES LK RD, Crawford, MI
Built 1999 Load: 72.3 t ADT: 50
USFS RTE 2473
GoodOver: BIG INDIAN RIVER
0.5 MI W OF MIRROR LAKE, Alger, MI
Built 2005 Load: 72.6 t ADT: 50
MOONSTONE DRIVE
GoodOver: THREAD CREEK
GRAND BLANC TWP SEC 12, Genesee, MI
Built 2004 Load: 73.9 t ADT: 660
I-96 RAMPS
GoodOver: WETLANDS WILDLIFE PATH
CASCADE TWP, Kent, MI
Built 2005 Load: 75.2 t
CR 687
GoodOver: S BR BLACK RIVER
0.25 MI N OF M-43, Van Buren, MI
Built 1999 Load: 77.4 t ADT: 1,950
FR7300
GoodOver: BANNER CREEK
NO DATA ENTERED, Gogebic, MI
Built 2018 Load: 79.7 t ADT: 50
I-75
GoodOver: ROUGE RIVER (SPRAGUE DR)
0.5 MI EAST OF COOLIDGE, Oakland, MI
Built 2020 Load: 85.5 t ADT: 105,868
DECKER ROAD
GoodOver: LAKE CHANNEL
2 MI S OF COLON, St. Joseph, MI
Built 2015 Load: 85.9 t ADT: 564
ROUND LAKE RD FH78
GoodOver: STURGEON RIVER
2 MI E OF W BR LAKE RD, Alger, MI
Built 2001 Load: 86.8 t ADT: 191
I-75 & M-85 NB
GoodOver: SMITH CREEK
1.5 MI N OF N HURON RI DR, Wayne, MI
Built 2008 Load: 95.3 t ADT: 28,645
GREY RD
GoodOver: BULLOCK CREEK
0.4 M N OF STEWART RD, Midland, MI
Built 2022 Load: 95.6 t ADT: 644
ROUND LAKE RD FH78
GoodOver: WEST BRANCH CREEK
0.25 MI N W BRANCH LAKE, Alger, MI
Built 1949 Load: 97.2 t ADT: 191
WARREN DUNES ST PK
GoodOver: PAINTERVILLE CREEK
LAKE TWP SEC 35, Berrien, MI
Built 2009 Load: 97.2 t ADT: 150
SPRINGBROOK ROAD
GoodOver: N BR BOYNE RIVER
2.0 MI E OF BOYNE FALLS, Charlevoix, MI
Built 2012 Load: 97.2 t ADT: 100
US-10 EB
GoodOver: LITTLE TOBACCO DRAIN
0.4 MI SE OF US-127, Clare, MI
Built 2019 Load: 97.2 t ADT: 5,400
COUNTY ROAD I 26
GoodOver: TACOOSH RIVER
.5 M W .5 M N RAPID RIVER, Delta, MI
Built 2017 Load: 97.2 t ADT: 78
COUNTY RD S554
GoodOver: SALMON TROUT RIVER
0.1 MI W REDRIDGE, Houghton, MI
Built 1979 Load: 97.2 t ADT: 250
ASKEL RD P109
GoodOver: OTTER RIVER
4 MI NE OF ELO, Houghton, MI
Built 1983 Load: 97.2 t ADT: 170
X AVENUE
GoodOver: LITTLE PORTAGE CREEK
1 MI S,1.1 MI W OF FULTON, Kalamazoo, MI
Built 1997 Load: 97.2 t ADT: 163
Q AVENUE
GoodOver: PORTAGE RIVER
0.51 MI E OF 29TH STREET, Kalamazoo, MI
Built 2017 Load: 97.2 t ADT: 1,079
M-6
GoodOver: PLASTER CREEK
GAINES TWP SEC 3, Kent, MI
Built 2001 Load: 97.2 t ADT: 40,180
BROCKER RD
GoodOver: S BR OF FLINT RIVER
385 FT W OF GARDNER RD, Lapeer, MI
Built 2015 Load: 97.2 t ADT: 250
COUNTY RD 500
GoodOver: LITTLE TWO HEARTED RIVER
3 MI N OF M-123, Luce, MI
Built 1985 Load: 97.2 t ADT: 150
I-696
GoodOver: PEBBLE CREEK
E OF INKSTER RD, Oakland, MI
Built 2023 Load: 97.2 t ADT: 158,700
JOHNSON STREET
GoodOver: PONTIAC CREEK
SW OF N CASS AVE, Oakland, MI
Built 1969 Load: 97.2 t ADT: 200
WACO RD
GoodOver: CREEK
400 FT E OF ROSCOMMON RD, Roscommon, MI
Built 2010 Load: 97.2 t ADT: 50
CAPAC ROAD
GoodOver: CAPAC DRAIN
340 FT S OF DONALD ROAD, St. Clair, MI
Built 2015 Load: 97.2 t ADT: 7,208
SHIMMEL RD
GoodOver: SHERMAN MILL CREEK
1.9 MI N OF US-12, St. Joseph, MI
Built 2022 Load: 97.2 t ADT: 2,225
76TH STREET
GoodOver: DEERLICK CREEK
0.25 MI N OF BLUE STAR HY, Van Buren, MI
Built 1995 Load: 97.2 t ADT: 1,190
N TERRITORIAL RD
GoodOver: HORSESHOE DRAIN
321 FT E OF NB US-23, Washtenaw, MI
Built 2017 Load: 97.2 t ADT: 7,025
US-31 NB
GoodOver: QUINN CREEK
0.9 MI N OF COUNTY LINE, Mason, MI
Built 1986 Load: 99.9 t ADT: 4,256
STREICHER ROAD
PoorOver: SILVER CREEK
BROWNSTOWN S/HURON RIV DR, Wayne, MI
Built 1936 Load: 7.8 t ADT: 253
USFS RTE 3458
PoorOver: CARP RIVER
3 MI N BURMA ROAD, Mackinac, MI
Built 1955 Load: 11.3 t ADT: 50
E N HINES DRIVE
PoorOver: MIDDLE ROUGE RIVER
WESTLAND E/MERRIMAN, Wayne, MI
Built 1952 Load: 12.3 t ADT: 14,193
SHARON VALLEY RD
PoorOver: RAISIN RIVER
SHARON TWP SEC. 33, Washtenaw, MI
Built 1960 Load: 12.9 t ADT: 151
MESSER ROAD
PoorOver: COLDWATER RIVER
0.46 MI N OF E BROWN RD, Barry, MI
Built 1972 Load: 13.6 t ADT: 50
COBURN ROAD
PoorOver: CEDAR CREEK
0.25 MI W OF MCKEOWN ROAD, Barry, MI
Built 1970 Load: 13.6 t ADT: 100
USFS RTE 2251
PoorOver: NORTH BR STUTTS CREEK
2 MI SW OF SHINGLETON, Schoolcraft, MI
Built 1951 Load: 13.6 t ADT: 15
NOSTWICK ROAD
PoorOver: BETSIE RIVER
4MI N 2.5MI E OF THMPSNVL, Benzie, MI
Built 1900 Load: 14.3 t ADT: 95
SHELDON ROAD
PoorOver: SINES DRAIN
CANTON N/MICHIGAN, Wayne, MI
Built 1935 Load: 14.6 t ADT: 2,100
YOUNG DRIVE
PoorOver: W GIBRALTAR WATERWAY
EAST OF WORTH, Wayne, MI
Built 1990 Load: 16.5 t ADT: 380
CASS CITY ROAD
PoorOver: SOUTHGATE DRAIN
SEC 19-30 AKRON TWP, Tuscola, MI
Built 1945 Load: 16.7 t ADT: 77
DAUBER ROAD
PoorOver: FAWN RIVER
NOBLE TWP SEC 18, Branch, MI
Built 1971 Load: 17.2 t ADT: 315
SNOVER ROAD
PoorOver: BEACH DRAIN
SEC 22-27 FREMONT TWP, Tuscola, MI
Built 1935 Load: 18.9 t ADT: 540
EAST-WEST RD
PoorOver: ROXBURY CREEK
12 MI N ECKERMAN, Chippewa, MI
Built 1947 Load: 19.1 t ADT: 30
EAST-WEST RD
PoorOver: NAOMIKONG CR
10 MI N OF STRONGS, Chippewa, MI
Built 1947 Load: 19.1 t ADT: 30
EVANSTON RD
PoorOver: BLACK CREEK
0.1 MI E OF CHATTERSON RD, Muskegon, MI
Built 1963 Load: 19.1 t ADT: 1,400
SWAN DRIVE
PoorOver: SWAN CHANNEL
GROSSE ILE W/S POINTE DR, Wayne, MI
Built 1956 Load: 19.1 t ADT: 200
NO DATA ENTERED
PoorOver: S BRANCH STUTTS CREEK
T44N, R17W, SEC. 6, Schoolcraft, MI
Built 1996 Load: 19.4 t ADT: 50
Showing 1,051-1,100 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 |