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
MDOT RR CORRIDOR
UnknownOver: M-39
IN DEARBORN, Wayne, MI
Built 1929 ADT: 105,075
CSX RR
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1963 ADT: 151,036
CONRAIL
UnknownOver: M-39 NB
IN LINCOLN PARK, Wayne, MI
Built 1923 ADT: 43,626
LYNDON AVE
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1961 ADT: 162,158
FENKELL AVE
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1962 ADT: 154,908
6 MI RD
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1962 ADT: 154,908
7 MI RD
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1963 ADT: 148,994
PEMBROKE AVE
UnknownOver: M-39
IN DETROIT, Wayne, MI
Built 1962 ADT: 132,268
I-75
UnknownOver: ROUGE R,DEARBORN ST & RR
IN DETROIT, Wayne, MI
Built 1967 ADT: 9,250
I-75 NB OFF RAMP
UnknownOver: RR AND MAINT RD
IN DETROIT, Wayne, MI
Built 1967 ADT: 100
I-75 SB ON RAMP
UnknownOver: ROUGE RIVER & PLEASANT S
IN DETROIT, Wayne, MI
Built 1967 ADT: 190,000
I-75 NB
UnknownOver: OUTER DRIVE
IN MELVINDALE, Wayne, MI
Built 1966 ADT: 19,000
I-75 SB
UnknownOver: OUTER DRIVE
IN MELVINDALE, Wayne, MI
Built 1966 ADT: 19,000
LIVERNOIS AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 2021 ADT: 111,018
VERNOR AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 2007 ADT: 82,122
I-75 SB
UnknownOver: I-96 WB
IN DETROIT, Wayne, MI
Built 1970 ADT: 17,896
US-12
UnknownOver: I-75 SB
IN DETROIT, Wayne, MI
Built 1970 ADT: 33,794
14TH ST
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1970 ADT: 80,318
ROSA PARKS (12TH)
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1970 ADT: 87,782
ROSA PARKS EXT RMP
UnknownOver: I-75 N COLLECTOR-DIST RD
IN DETROIT, Wayne, MI
Built 1970 ADT: 23,700
M-10 SB TO EB RAMP
UnknownOver: I-75 & RAMP TO SB
IN DETROIT, Wayne, MI
Built 1970 ADT: 43,891
I-75 E-N RAMP
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1970 ADT: 104,516
M-10S TO I-75E RMP
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1970 ADT: 104,516
M-10N TO I-75S RMP
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1970 ADT: 111,518
I-75 W S RAMP
UnknownOver: M-10
IN DETROIT, Wayne, MI
Built 1970 ADT: 111,518
M-10 N-W RAMP
UnknownOver: I-75 & EXIT RAMPS
IN DETROIT, Wayne, MI
Built 1970 ADT: 92,802
I-75 SB ENT RMP
UnknownOver: I-75 NB ENT RAMP
IN DETROIT OVER LODGE, Wayne, MI
Built 1970 ADT: 9,500
THIRD AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1967 ADT: 92,802
SECOND BLVD
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1967 ADT: 75,000
CLIFFORD ST
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1967 ADT: 92,802
RUSSELL ST
UnknownOver: I-75 CONN TO M-3
IN DETROIT, Wayne, MI
Built 1970 ADT: 22,748
M-3 (GRATIOT AVE)
UnknownOver: I-375
DOWNTOWN DETROIT, Wayne, MI
Built 1963 ADT: 74,048
I-75 SB
UnknownOver: I-75 SB TO EB RAMP
I-75 & I-375 INTCHG, Wayne, MI
Built 1970 ADT: 2,700
M-3 NB CONN
UnknownOver: I-75 & I-375
IN DETROIT OVER I-375, Wayne, MI
Built 1964 ADT: 87,592
M-3 WB CONN
UnknownOver: I-375 & I-75 RAMP
IN DETROIT OVER I-375 NW, Wayne, MI
Built 1964 ADT: 11,800
M-3 TO I-375 S RMP
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1963 ADT: 116,840
CANFIELD AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1962 ADT: 145,494
I-75 SB EXIT RAMP
UnknownOver: I-75 E&W TO SB TURN RDWY
IN DETROIT, Wayne, MI
Built 1964 ADT: 22,400
I-94 W-S RAMP
UnknownOver: I-94EB TO I-75NB RAMP
IN DETROIT, Wayne, MI
Built 1964 ADT: 12,100
I-75NB&I-94WB RAMP
UnknownOver: I-75 & RAMP
IN DETROIT, Wayne, MI
Built 1964 ADT: 127,708
I-94 W-S RAMP
UnknownOver: I-75 & RAMP
IN DETROIT, Wayne, MI
Built 1962 ADT: 151,136
I-75 S-E RAMP
UnknownOver: I-75 SB
IN DETROIT, Wayne, MI
Built 1962 ADT: 75,568
MILWAUKEE AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 2021 ADT: 155,775
E GRAND BLVD
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1968 ADT: 151,136
CLAY AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 156,100
HOLBROOK AVE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 156,100
7 MI RD NB LEFT TU
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 2003 ADT: 165,038
M-102 EB SERV RD
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 165,038
DEQUINDRE AVE
UnknownOver: I-75
IN HAMTRAMCK, Wayne, MI
Built 1969 ADT: 143,588
COMMER AVE
UnknownOver: I-75
IN HAMTRAMCK, Wayne, MI
Built 1969 ADT: 159,874
Showing 301-350 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.