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
AA RR
UnknownOver: US-23 BR
IN ANN ARBOR N MAIN ST, Washtenaw, MI
Built 1951 ADT: 23,379
US-23NB, I-94BL
UnknownOver: PACKARD RD
IN ANN ARBOR (PACKARD RD), Washtenaw, MI
Built 1962 ADT: 26,560
PLYMOUTH-ANNARBOR
UnknownOver: US-23
IN ANN ARBOR, Washtenaw, MI
Built 1962 ADT: 70,540
8 MI RD
UnknownOver: US-23
AT LIVINGSTON CO LINE, Washtenaw, MI
Built 2017 ADT: 66,750
WILLOW RD
UnknownOver: US-23
2.1 MI N OF MONROE COL, Washtenaw, MI
Built 1962 ADT: 41,226
WILLIS RD
UnknownOver: US-23
3.5 MI S OF US-12, Washtenaw, MI
Built 1962 ADT: 56,800
US-12
UnknownOver: US-23
@ US-12, Washtenaw, MI
Built 2023 ADT: 54,548
PONTIAC TRAIL
UnknownOver: US-23 SB, M-14 EB
0.5 MI E OF W JCT M-14, Washtenaw, MI
Built 1962 ADT: 36,627
PONTIAC TRAIL
UnknownOver: US-23 NB, M-14 WB
0.5 MI E OF W JCT M-14, Washtenaw, MI
Built 1962 ADT: 36,627
NIXON RD
UnknownOver: US-23, M-14
2.0 MI NE OF ANN ARBOR, Washtenaw, MI
Built 1962 ADT: 73,254
M-14 EB
UnknownOver: RAMP B US-23
E JCT US-23 (OVER RAMP B), Washtenaw, MI
Built 1964 ADT: 4,200
M-14 EB
UnknownOver: EARHART RD
0.5 MI E OF US-23, Washtenaw, MI
Built 1964 ADT: 250
US-23 SB/M-14 EB
UnknownOver: M-14 W
@ W JCT US-23 (LOWER), Washtenaw, MI
Built 1962 ADT: 36,627
M-14 WB
UnknownOver: EARHART RD
0.5 MI E OF US-23, Washtenaw, MI
Built 1964 ADT: 250
CURTIS ROAD
UnknownOver: M-14
3 MI W OF WAYNE CO LINE, Washtenaw, MI
Built 1975 ADT: 51,334
JOY ROAD
UnknownOver: M-14
5.0 M SW OF PLYMOUTH, Washtenaw, MI
Built 1975 ADT: 51,334
GOTFREDSON ROAD
UnknownOver: M-14
4.0 MI W OF PLYMOUTH, Washtenaw, MI
Built 1975 ADT: 55,818
NOTTEN RD
UnknownOver: I-94
0.4 MI E OF JACKSON COL, Washtenaw, MI
Built 1960 ADT: 45,876
I-94 WB
UnknownOver: DANCER RD
4.5 MI E OF M-52, Washtenaw, MI
Built 1961 ADT: 490
ZEEB RD
UnknownOver: I-94
1.5 MI W OF M-14, Washtenaw, MI
Built 2002 ADT: 77,206
M-14 EB
UnknownOver: I-94 WB
2.0 MI NW OF ANN ARBOR, Washtenaw, MI
Built 1966 ADT: 23,119
JACKSON AV WB,94BR
UnknownOver: I-94 RAMP
0.5 MI W OF I-94 BL, Washtenaw, MI
Built 1960 ADT: 9,998
MILLER RD
UnknownOver: M-14
1.3 MI NE OF I-94, Washtenaw, MI
Built 1966 ADT: 39,963
NEWPORT RD
UnknownOver: M-14
IN ANN ARBOR, Washtenaw, MI
Built 1966 ADT: 39,963
M-14
UnknownOver: US-23 BR HURON RIVER DRV
IN ANN ARBOR, Washtenaw, MI
Built 2000 ADT: 22,036
HURON PARKWAY
UnknownOver: HURON RV,GEDDES & NFS RR
1.0 MI W OF US-23, Washtenaw, MI
Built 1968 ADT: 11,500
ECORSE RD WB
UnknownOver: US-12 EB
4.8 MI E OF YPSILANTI, Wayne, MI
Built 2005 ADT: 7,282
I-94 WB
UnknownOver: HANNAN RD
3 MI E OF BELLEVILLE, Wayne, MI
Built 1972 ADT: 4,500
I-94 WB
UnknownOver: WAYNE RD
4.3 MI W OF TAYLOR, Wayne, MI
Built 1962 ADT: 21,170
I-94 WB
UnknownOver: MERRIMAN RD
1.9 MI W OF TAYLOR, Wayne, MI
Built 1993 ADT: 30,900
I-94 WB
UnknownOver: MIDDLEBELT RD
1.2 MI W OF TAYLOR, Wayne, MI
Built 1993 ADT: 17,700
I-94 EB
UnknownOver: ECORSE RD
IN TAYLOR,OVER ECORSE RD, Wayne, MI
Built 1962 ADT: 24,300
I-94 WB
UnknownOver: ECORSE RD
IN TAYLOR,OVER ECORSE RD, Wayne, MI
Built 1962 ADT: 24,300
I-94 EB
UnknownOver: BEECH-DALY RD
IN TAYLOR,OVER BEECH-DALY, Wayne, MI
Built 1962 ADT: 8,500
I-94 EB
UnknownOver: US-24 (TELEGRAPH RD)
IN TAYLOR,US-24, Wayne, MI
Built 2004 ADT: 64,724
I-94 EB
UnknownOver: MONROE BLVD
IN TAYLOR OVER MONROE BLV, Wayne, MI
Built 2004 ADT: 12,000
I-94 WB
UnknownOver: MONROE BLVD
IN TAYLOR OVER MONROE BLV, Wayne, MI
Built 2004 ADT: 12,000
I-94 WB
UnknownOver: OUTER DR
IN ALLEN PARK, Wayne, MI
Built 1996 ADT: 28,100
SCHAEFER HWY
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1978 ADT: 87,186
RAMP FROM US-12EB
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1948 ADT: 98,308
US-12 (MICHIGAN AV
UnknownOver: I-94 RAMP
IN DEARBORN, Wayne, MI
Built 1944 ADT: 22,000
US-12 (MICHIGAN AV
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1948 ADT: 98,308
RAMP TO US-12
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1948 ADT: 84,050
WYOMING AVE
UnknownOver: I-94
W LTS OF DETROIT, Wayne, MI
Built 1949 ADT: 94,864
I-94 EB RMP
UnknownOver: PELHAM ROAD
E OF PELHAM S OF I-94, Wayne, MI
Built 1984 ADT: 3,500
M-39 SB RAMP K
UnknownOver: I-94
IN ALLEN PARK, Wayne, MI
Built 1984 ADT: 89,000
I-94 EB
UnknownOver: M-39
IN ALLEN PARK, Wayne, MI
Built 1984 ADT: 59,978
CONRAIL
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1945 ADT: 87,186
CSX RR
UnknownOver: I-94
IN DEARBORN, Wayne, MI
Built 1944 ADT: 98,308
NS RR
UnknownOver: M-39 & I-94 RAMPS
S OF I-94 EB, Wayne, MI
Built 1984 ADT: 59,978
Showing 101-150 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 |