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
I-96WB
UnknownOver: M-11
@ M-11, Kent, MI
Built 1961 ADT: 42,456
I-296 WB/US-131 SB
UnknownOver: ANN STREET
IN GRAND RAPIDS (ANN ST), Kent, MI
Built 1962 ADT: 17,300
M-6 EB
UnknownOver: KRAFT AVENUE
CALEDONIA TWP SEC 5&6, Kent, MI
Built 1999 ADT: 11,460
US-131 NB
UnknownOver: GRAND RIVER & FULTON ST
IN GRAND RAPIDS, Kent, MI
Built 1999 ADT: 11,470
US-131 SB
UnknownOver: CESAR E CHAVEZ AVE
IN GRAND RAPIDS, Kent, MI
Built 1999 ADT: 3,662
BURLINGAME AVE
UnknownOver: M-6
BYRON TWP SEC 2&3, Kent, MI
Built 2001 ADT: 51,630
M-6 EB
UnknownOver: CLYDE PARK AVENUE
BYRON TWP SEC 1&2, Kent, MI
Built 2000 ADT: 3,500
M-6 WB C-D
UnknownOver: CLYDE PARK AVENUE
BYRON TWP SEC 1&2, Kent, MI
Built 2000 ADT: 3,500
M-6 WB
UnknownOver: DIVISION AVENUE
BYRON TWP SEC 1, Kent, MI
Built 2000 ADT: 3,500
M-6 WB
UnknownOver: EASTERN AVENUE
GAINES TWP SEC 5&6, Kent, MI
Built 2001 ADT: 3,500
EAST PARIS AVE
UnknownOver: M-6
GAINES TWP SEC 1&2, Kent, MI
Built 2001 ADT: 40,180
PATTERSON AVENUE
UnknownOver: M-6
GAINES TWP SEC 1, Kent, MI
Built 2000 ADT: 40,180
US-131 S TO M-6 W
UnknownOver: CLYDE PARK AVENUE
BYRON TWP SEC 1&2, Kent, MI
Built 2000 ADT: 2,000
US-131 SB
UnknownOver: FRONT AVENUE
IN GRAND RAPIDS, Kent, MI
Built 2000 ADT: 2,500
US-131 SB
UnknownOver: PEARL STREET
IN GRAND RAPIDS, Kent, MI
Built 2000 ADT: 10,945
AIRWAY STREET
UnknownOver: JUPITER AVE
0.3 MI E OF HUNSBERGER AV, Kent, MI
Built 1999 ADT: 8,500
I-96 WB
UnknownOver: RAMP A
CASCADE TWP, Kent, MI
Built 2005 ADT: 22,000
I-96 WB
UnknownOver: RAMP B
CASCADE TWP, Kent, MI
Built 2005 ADT: 1,500
NB CONN TO I-96 WB
UnknownOver: I-96 WB TO 36TH SB CONN
CASCADE TWP, Kent, MI
Built 2005 ADT: 12,500
I-296 (US-131) SB
UnknownOver: US-131 BR (LEONARD)
IN GRAND RAPIDS, Kent, MI
Built 1961 ADT: 22,078
CASCADE RD WB
UnknownOver: I-96
1 MI N OF M-21, Kent, MI
Built 2016 ADT: 76,745
LATSON ROAD
UnknownOver: I-96
GENOA TWP SEC 8-9, Livingston, MI
Built 2013 ADT: 46,200
CONRAIL
UnknownOver: I-696
IN CENTERLINE, Macomb, MI
Built 1972 ADT: 174,100
M-59 EB
UnknownOver: I-94
CHESTERFIELD/HARRISON TWP, Macomb, MI
Built 1996 ADT: 97,216
M-53 SB
UnknownOver: VAN DYKE RD & M-53 RMP
0.3 MI N OF 18 MILE RD, Macomb, MI
Built 2004 ADT: 77,777
M-20 WB
UnknownOver: TITTABAWASSEE RIVER
IN MIDLAND, Midland, MI
Built 2018 ADT: 22
OTTER CREEK RD
UnknownOver: I-75
4.0 MI SW OF MONROE, Monroe, MI
Built 1974 ADT: 58,600
ORCHARD LAKE RD
UnknownOver: US-24
IN PONTIAC, Oakland, MI
Built 2000 ADT: 54,018
M-10 WB
UnknownOver: US-24
IN SOUTHFIELD, Oakland, MI
Built 1964 ADT: 139,700
MIDDLEBELT RD
UnknownOver: I-696
5.7 MI E OF I-96, Oakland, MI
Built 1961 ADT: 158,700
FRANKLIN RD
UnknownOver: I-696
IN SOUTHFIELD, Oakland, MI
Built 2006 ADT: 158,700
GTWRR(EAST TRACK)
UnknownOver: M-59
CITY OF PONTIAC, Oakland, MI
Built 1998 ADT: 27,166
SQUIRREL RD SB
UnknownOver: M-59
PONTIAC TWP SEC 25, Oakland, MI
Built 1999 ADT: 81,056
WB M-59(OFF RMP)
UnknownOver: ADAMS RD ON RAMP
ROCHESTER HILLS, Oakland, MI
Built 2004 ADT: 6,000
UNIVERSITY DRIVE
UnknownOver: I-75
1.6 MI N OF M-59, Oakland, MI
Built 2015 ADT: 139,794
NB I-75
UnknownOver: NORTH TO WEST RAMP
SQUARE LAKE INTERCHANGE, Oakland, MI
Built 2017 ADT: 2,500
M-6 EB, RAMP D
UnknownOver: I-196 WB , RAMP C
GEORGETOWN TWP SEC 35, Ottawa, MI
Built 2004 ADT: 16,313
I-196 WB TO M-6 EB
UnknownOver: I-196 EB
GEORGETOWN TWP 35, Ottawa, MI
Built 2004 ADT: 17,686
M-231
UnknownOver: BUCHANAN STREET
1.0 MI N OF M-45, Ottawa, MI
Built 2014 ADT: 300
M-231
UnknownOver: NORTH CEDAR DRIVE
4.2 MI N OF M-45, Ottawa, MI
Built 2012 ADT: 200
MORRICE RD
UnknownOver: I-69
2.3 MI NE OF M-52, Shiawassee, MI
Built 1966 ADT: 36,360
MELDRUM RD
UnknownOver: I-94
4.3 MI NE OF MACOMB COL, St. Clair, MI
Built 1964 ADT: 31,102
I-94 & I-69
UnknownOver: M-25 PINE GROVE AVE
PORT HURON @ PLAZA, St. Clair, MI
Built 1993 ADT: 21,992
I-94 & I-69 EB
UnknownOver: BLACK RIVER & SCOTT AVE
W CITY LIMITS, St. Clair, MI
Built 2011 ADT: 150
I-196 SB
UnknownOver: 32 ND AVE (CR378)
5.1 MI NE OF BERRIEN COL, Van Buren, MI
Built 1963 ADT: 1,560
32ND ST (CR653)
UnknownOver: I-94
5.0 MI W OF KALAMAZOO COL, Van Buren, MI
Built 1960 ADT: 42,225
I-94 EB
UnknownOver: WIARD RD
2.0 MI SE OF YPSILANTI, Washtenaw, MI
Built 1958 ADT: 11,000
PLATT RD
UnknownOver: I-94
0.8 MI W OF US-23, Washtenaw, MI
Built 1998 ADT: 78,348
US-12 (M/E TRI LVL
UnknownOver: ACM TEST TRACK
0.5 MI W OF CO LINE, Washtenaw, MI
Built 1942 ADT: 11,500
HARRIS RD
UnknownOver: I-94
1.0 MI E OF YPSILANTI, Washtenaw, MI
Built 1971 ADT: 22,756
Showing 51-100 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.