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
SAVANNAH AVENUE
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1967 ADT: 152,325
I-75N RMP WINCHEST
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1967 ADT: 165,038
DEQUINDRE U-TURN
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 143,588
MEADE ST
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 166,750
CONRAIL & GTW RR
UnknownOver: I-75
IN DETROIT OVER I75 &W GD, Wayne, MI
Built 1968 ADT: 151,136
GTW RR
UnknownOver: I-75
IN DETROIT, Wayne, MI
Built 1969 ADT: 143,588
GTW RR
UnknownOver: I-75 RAMP
IN DETROIT I75 RAMP, Wayne, MI
Built 1971 ADT: 23,000
US-24-I-75 CONN SB
UnknownOver: RACHO RD
IN TAYLOR OVER RACHO RD, Wayne, MI
Built 1964 ADT: 2,762
US-24 I-75 CONN NB
UnknownOver: RACHO RD
IN TAYLOR OVER RACHO RD, Wayne, MI
Built 1964 ADT: 2,762
US-24,I-75 CONN SB
UnknownOver: US-24 NB
IN TAYLOR OVER US-24 NB, Wayne, MI
Built 1964 ADT: 12,478
WILL CARLETON RD
UnknownOver: I-275
WAYNE MONROE CO LINE, Wayne, MI
Built 1974 ADT: 44,518
WILLOW RD
UnknownOver: I-275
0.8 MI E OF WILLOW, Wayne, MI
Built 1974 ADT: 44,518
I-94 EB
UnknownOver: I-275 SB TO I-94 EB RAMP
IN ROMULUS, Wayne, MI
Built 1972 ADT: 8,100
NS RR
UnknownOver: I-275
IN ROMULUS (EAST), Wayne, MI
Built 1972 ADT: 70,806
NS RR
UnknownOver: I-275 EXIT RAMP F
IN ROMULUS, Wayne, MI
Built 1972 ADT: 5,900
I-275 NB
UnknownOver: VANBORN ROAD
2.2 MI W OF WAYNE, Wayne, MI
Built 1974 ADT: 6,768
I-275 NB
UnknownOver: MICHIGAN AVE(US-12)
3/4 MI W OF WAYNE C LTS, Wayne, MI
Built 1974 ADT: 54,744
WARREN RD
UnknownOver: I-275
3 MI SE OF PLYMOUTH, Wayne, MI
Built 1972 ADT: 127,518
M-14 ANN ARBOR RD
UnknownOver: I-275
0.5 MI W OF LIVONIA, Wayne, MI
Built 1972 ADT: 131,306
I-275 NB COLLECTOR
UnknownOver: M-14
0.3 MI W OF LIVONIA, Wayne, MI
Built 1971 ADT: 93,826
GTW RR
UnknownOver: EUREKA ROAD
WYANDOTTE W/JEFFERSON, Wayne, MI
Built 1927 ADT: 36,041
CONRAIL
UnknownOver: EUREKA ROAD
WYANDOTTE W/JEFFERSON, Wayne, MI
Built 1927 ADT: 36,041
GTW RR
UnknownOver: EUREKA ROAD
WYANDOTTE W/JEFFERSON, Wayne, MI
Built 1927 ADT: 36,041
GTW RR
UnknownOver: EUREKA ROAD
WYANDOTTE W/JEFFERSON, Wayne, MI
Built 1927 ADT: 36,041
CONRAIL
UnknownOver: SOUTHFIELD ROAD
ECORSE W/JEFFERSON, Wayne, MI
Built 1929 ADT: 36,754
CONRAIL
UnknownOver: SOUTHFIELD ROAD
ECORSE W/JEFFERSON, Wayne, MI
Built 1929 ADT: 36,754
ROTUNDA DRIVE
UnknownOver: SCHAEFER ROAD
DEARBORN N/I-94, Wayne, MI
Built 1932 ADT: 11,663
WARREN AVENUE
UnknownOver: E N HINES DRIVE
DBN HTS W/ANN ARBOR TRAIL, Wayne, MI
Built 1957 ADT: 16,370
PEDESTRIAN WALKWAY
UnknownOver: JOY ROAD
CANTON/PLYMOUTH E/I-275, Wayne, MI
Built 1974 ADT: 16,417
PEDESTRIAN WALKWAY
UnknownOver: ANN ARBOR TRAIL
PLYMOUTH @ SHELDON, Wayne, MI
Built 1975 ADT: 7,125
PLYMOUTH ROAD
UnknownOver: E N HINES DRIVE
PLYMOUTH TWP W/HAGGERTY, Wayne, MI
Built 1934 ADT: 7,192
SIX MILE ROAD
UnknownOver: EN HINES DRIVE
NORTHVILLE T W/NORTHV RD, Wayne, MI
Built 1933 ADT: 1,959
OUTER DRIVE
UnknownOver: MT OLIVET CEMETERY DR
DETROIT N/SIX MILE, Wayne, MI
Built 1946 ADT: 20
MERRIMAN ROAD
UnknownOver: E N HINES DRIVE
WESTLAND N/WARREN, Wayne, MI
Built 1951 ADT: 14,193
INKSTER ROAD
UnknownOver: E N HINES DRIVE
DBNHTS/WESTLDS/JOY, Wayne, MI
Built 1953 ADT: 15,190
CSX RR
UnknownOver: BEECH-DALY ROAD
REDFORD N/PLYMOUTH, Wayne, MI
Built 1954 ADT: 37,528
NORFOLK SOUTHRN RR
UnknownOver: PELHAM ROAD
ALLEN PK/TAYLOR S/I-94, Wayne, MI
Built 1940 ADT: 29,560
GREENFIELD ROAD
UnknownOver: CSX RR & FULLERTON RD
DETROIT N/I-96, Wayne, MI
Built 1970 ADT: 1,000
CONRAIL
UnknownOver: OUTER DRIVE
ECORSE W/JEFFERSON, Wayne, MI
Built 1939 ADT: 20,877
GTW RR
UnknownOver: OUTER DRIVE
ALLEN PK & MLVINDL S/I-94, Wayne, MI
Built 1931 ADT: 24,077
GTW RR
UnknownOver: SCHAEFER ROAD
RIVER ROUGE W/JEFFERSON, Wayne, MI
Built 1927 ADT: 19,921
CSX RR
UnknownOver: OAKMAN BLVD
DEARBORN S/FORD, Wayne, MI
Built 1931 ADT: 12,602
CSX RR
UnknownOver: MILLER ROAD
DEARBORN N/MICHIGAN, Wayne, MI
Built 1927 ADT: 7,511
GTW RR
UnknownOver: JOSEPH CAMPAU
HAMTRMCK N/HAMTRCK DRIVE, Wayne, MI
Built 1928 ADT: 6,985
CONRAIL
UnknownOver: JOSEPH CAMPAU
HAMTRMCK N/HAMTRCK DRIVE, Wayne, MI
Built 1928 ADT: 6,985
CONRAIL
UnknownOver: CONANT AVENUE
HAMTRAMCK S/HOLBROOK, Wayne, MI
Built 1936 ADT: 13,614
CONRAIL
UnknownOver: HAMTRAMCK DRIVE
HAMTRMCK W/JOS CAMPAU, Wayne, MI
Built 1983 ADT: 4,445
MDOT RR CORRIDOR
UnknownOver: NOWLIN RD
IN DEARBORN, Wayne, MI
Built 1967 ADT: 5,600
GRAND TRUNK RR
UnknownOver: EAGLE RD
IN DEARBORN, Wayne, MI
Built 1925 ADT: 11,060
C & O RAILROAD (W)
UnknownOver: SOUTHERN AVENUE
IN DEARBORN, Wayne, MI
Built 1930 ADT: 2,600
Showing 351-400 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 |