Total Bridges
1,188
Public highway bridges in Michigan
State profile · Above median Poor share
Michigan bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Michigan, based on the FHWA National Bridge Inventory.
- 1,188
- Public bridges
- 28.4%
- Good condition
- 8.9%
- Poor condition
Data updated May 2026
Good Condition
28.4%
337 bridges rated 7-9
-21.6pp vs 50% benchmark
Poor Condition
8.9%
106 bridges whose lowest applicable component is rated 0-4
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 - Poor-condition share 29.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Michigan on the same metric.
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
MI
Michigan
8.92% top marginal rate
AK
Alaska
10.12% top marginal rate
PA
Pennsylvania
10.50% top marginal rate
Bridges Needing Most Attention in Michigan
Six lowest-condition bridges in Michigan, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
STEVENSON ROAD
PoorOver: 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
PoorOver: MANISTEE RIVER
SECTION 28 T24N R11W, Wexford, MI
Built 1906 Load: 2.9 t ADT: 106
PARKE LANE ROAD
PoorOver: 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
PoorOver: SEXTON-KILFOIL DRAIN
IN ALLEN PARK, Wayne, MI
Built 1960 Load: 7.8 t ADT: 5,600
LOG ROAD
PoorOver: 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
WOODLAND ROAD
PoorOver: AU TRAIN RIVER
0.75 MI E OF AU TRAIN, Alger, MI
Built 1910
28 MILE RD
PoorOver: DEER CREEK
1000' E OF PLACE RD, Macomb, MI
Built 1968 ADT: 70
MILLER ROAD
PoorOver: CONRAIL
DEARBORN S/MICHIGAN, Wayne, MI
Built 1931 ADT: 23,965
STEVENSON ROAD
PoorOver: 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
PoorOver: MANISTEE RIVER
SECTION 28 T24N R11W, Wexford, MI
Built 1906 Load: 2.9 t ADT: 106
PARKE LANE ROAD
PoorOver: 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
PoorOver: SEXTON-KILFOIL DRAIN
IN ALLEN PARK, Wayne, MI
Built 1960 Load: 7.8 t ADT: 5,600
LOG ROAD
PoorOver: SOUTH BR SWAN CREEK
BETHEL TWP SEC 8, Branch, MI
Built 1982 Load: 8.1 t ADT: 110
OLD-27
PoorOver: ST JOSEPH RIVER
TEKSHONA TWP SEC 27, Calhoun, MI
Built 1930 Load: 8.1 t ADT: 2,524
ROSBOLT RD
PoorOver: PAINT CREEK
AUGUSTA TWP SEC 15, Washtenaw, MI
Built 1928 Load: 8.1 t ADT: 69
CHESTERFIELD RD
PoorOver: QUARTON BR/ROUGE RIVER
IN BLOOMFIELD HILLS, Oakland, MI
Built 1979 Load: 8.7 t ADT: 1,000
34 MILE RD
PoorOver: HIGHBANK CREEK
1200' E OF ARMADA RIDGE, Macomb, MI
Built 1968 Load: 10.4 t ADT: 114
CASSOPOLIS RD
PoorOver: CHRISTIANA CREEK
580 FT N OF MT ZION ST, Cass, MI
Built 1960 Load: 10.7 t ADT: 159
PARKER ROAD
PoorOver: TRIB TO MILL CREEK
SCIO TWP SEC 30, Washtenaw, MI
Built 1968 Load: 10.7 t ADT: 300
USFS RTE 3458
PoorOver: CARP RIVER
3 MI N BURMA ROAD, Mackinac, MI
Built 1955 Load: 11.3 t ADT: 50
MAIN ST OVERPASS
PoorOver: AMTRAK RAILROAD
MATTAWAN MICHIGAN, Van Buren, MI
Built 1980 Load: 11.3 t ADT: 5,023
SIBLEY ROAD (EAST)
PoorOver: LETTS CREEK
SYLVAN TWP SEC 2, Washtenaw, MI
Built 1968 Load: 12.0 t ADT: 200
Showing 1,051-1,100 of 1,188 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.