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
HOULIHAN ROAD
GoodOver: BIRCH RUN DRAIN
SEC 15 T11N R4E, Saginaw, MI
Built 1999 Load: 36.3 t ADT: 10
MARLEY DRIVE
GoodOver: CANAL (MIDDLE)
BROWNSTOWNE/DERN, Wayne, MI
Built 2002 Load: 36.3 t ADT: 760
MARLEY DRIVE
GoodOver: CANAL (EAST)
BROWNSTOWNE/MARCUS, Wayne, MI
Built 2002 Load: 36.3 t ADT: 760
M-115
GoodOver: NORWAY CREEK
0.8 MI SE OF OSCEOLA COL, Clare, MI
Built 1938 Load: 36.6 t ADT: 5,855
OTTO ROAD
GoodOver: THORNAPPLE RIVER
6 MI N OF CHARLOTTE, Eaton, MI
Built 1986 Load: 36.6 t ADT: 630
CASS ROAD
GoodOver: BOARDMAN RIVER
0.26 MI W OF KEYSTONE RD, Grand Traverse, MI
Built 2016 Load: 36.6 t ADT: 7,384
WIKARYASZ ROAD
GoodOver: N BR THUNDER BAY RIVER
1.8 MI WEST OF BOLTON, Alpena, MI
Built 2002 Load: 36.9 t ADT: 60
BURNT MILL ROAD
GoodOver: PLATTE RIVER
INLAND TWP SEC 4, Benzie, MI
Built 2010 Load: 36.9 t ADT: 53
M-66
GoodOver: QUAKER BROOK
2.5 MI S OF NASHVILLE, Barry, MI
Built 2006 Load: 37.3 t ADT: 2,159
WHITE CREEK ROAD
GoodOver: WHITE CREEK DRAIN #2
SEC 1-2 KOYLTON TWP, Tuscola, MI
Built 1993 Load: 37.3 t ADT: 600
GEDDES ROAD
GoodOver: FOWLER DRAIN
CANTON W/BARR, Wayne, MI
Built 2001 Load: 37.3 t ADT: 5,404
KLENK AVE
GoodOver: FOX CREEK
NORTH OF RIVERSIDE, Wayne, MI
Built 1981 Load: 37.3 t ADT: 116
MIDDLE BELT ROAD
GoodOver: BELL CREEK
LIVONIA N/FIVE MILE, Wayne, MI
Built 2022 Load: 37.6 t ADT: 31,000
M-553
GoodOver: CARP RIVER
0.5 MI S OF M-554, Marquette, MI
Built 2002 Load: 37.9 t ADT: 6,595
I-75 NB
GoodOver: CSX RR
0.3 MI S OF M-46, Saginaw, MI
Built 2021 Load: 37.9 t ADT: 32,900
COLONY DRIVE
GoodOver: UNNAMED CANAL
100FT W OF VAN DYKE, St. Clair, MI
Built 1995 Load: 37.9 t ADT: 500
ALLEN ROAD
GoodOver: ECORSE CREEK
ALLEN PARK S/OUTER DRV, Wayne, MI
Built 2021 Load: 37.9 t ADT: 23,260
VASSAR ROAD
GoodOver: PERRY CREEK
SEC 7 MILLINGTON TWP, Tuscola, MI
Built 1985 Load: 38.0 t ADT: 1,690
CALL RD
GoodOver: MARKS CREEK
SEC 5/6, T21N, R7W, Missaukee, MI
Built 2000 Load: 38.2 t ADT: 180
VASSAR ROAD
GoodOver: NORTHWEST DRAIN
SEC 18 FAIRGROVE TWP, Tuscola, MI
Built 1971 Load: 38.2 t ADT: 650
MCGEE ROAD
GoodOver: MOSQUITO CREEK
SEC 21/22, T22N, R7W, Missaukee, MI
Built 2000 Load: 38.6 t ADT: 112
KENNETT ROAD
GoodOver: CN & GTW RR
1/4 MI SE TELEGR & OAKLND, Oakland, MI
Built 2004 Load: 38.6 t ADT: 5,700
I-275 RAMP N
GoodOver: CSX RR
S OF SCHOOLCRAFT, Wayne, MI
Built 1971 Load: 38.6 t ADT: 8,760
JEFFERSON AVENUE
GoodOver: CONRAIL (ABN)
E OF BEAUFAIT, Wayne, MI
Built 2016 Load: 38.6 t ADT: 24,850
CHERRY STREET
GoodOver: FARNUM DRAIN
150 FT S OF TEEDS ST, Lapeer, MI
Built 2011 Load: 38.9 t ADT: 8
NOVI RD
GoodOver: CSX RR & MID ROUGE RIVER
S OF GRAND RIVER AVE, Oakland, MI
Built 2011 Load: 38.9 t ADT: 19,810
WATER STREET
GoodOver: STOCKS CREEK
0.24 MI W OF W WATER ST, St. Clair, MI
Built 2015 Load: 38.9 t ADT: 6,794
M-85 NB
GoodOver: SEXTON-KILFOIL DRAIN
IN LINCOLN PARK, Wayne, MI
Built 2011 Load: 38.9 t ADT: 18,478
HALBERT RD
GoodOver: WABASCON CREEK
0.4 MI W OF M-37, Calhoun, MI
Built 2019 Load: 39.2 t ADT: 200
US-31
GoodOver: BOARDMAN RIVER
IN TRAVERSE CITY, Grand Traverse, MI
Built 1951 Load: 39.2 t ADT: 26,650
M-46
GoodOver: W BR PINE RIVER
2.1 MI W OF US 27, Gratiot, MI
Built 2006 Load: 39.2 t ADT: 6,570
RIVER PARK RD
GoodOver: CARP RIVER
0.1 M E OF N LAKESHORE DR, Marquette, MI
Built 1996 Load: 39.2 t ADT: 1,000
E N HINES DRIVE
GoodOver: MIDDLE ROUGE RIVER
DBN HTS N/FORD, Wayne, MI
Built 2023 Load: 39.2 t ADT: 15,754
M-102 WB
GoodOver: PLUM CREEK
0.5 MI E OF US-24, Wayne, MI
Built 2013 Load: 39.2 t ADT: 61,780
DELONG ROAD
GoodOver: ROCKY RIVER
1 MI SE OF HOWARDSVILLE, St. Joseph, MI
Built 2001 Load: 39.3 t ADT: 68
M-6 WB
GoodOver: RUSH CREEK
0.6 MI E OF WILSON AVE, Kent, MI
Built 2002 Load: 39.5 t ADT: 22,828
ROCKRIVER ROAD
GoodOver: ROCK RIVER
1.1 MI S OF M-28, Alger, MI
Built 2007 Load: 39.7 t ADT: 145
MASON ROAD
GoodOver: POTATO CREEK DRAIN
SEC 1-2 HAMILTON TWP, Gratiot, MI
Built 1994 Load: 39.7 t ADT: 77
COUNTY RD 400
GoodOver: FORTY SEVEN MILE CREEK
2.0 MI. SW OF PERRONVILLE, Menominee, MI
Built 1999 Load: 39.9 t ADT: 20
RMP, 8TH TO M-6 EB
GoodOver: RUSH CREEK
JAMETOWN TWP SEC 2, Ottawa, MI
Built 2002 Load: 39.9 t ADT: 6,600
BOLTON ROAD
GoodOver: MONAGHAN CREEK
0.4 MI N OF E CO RD 634, Presque Isle, MI
Built 2017 Load: 39.9 t ADT: 117
FORD BOULEVARD
GoodOver: MDOT RR CORRIDOR
YPSILANTI TWP SEC 11, Washtenaw, MI
Built 2013 Load: 39.9 t ADT: 16,513
ALVIN ROAD
GoodOver: DUVAL CREEK
3.7 S 1 MI W OF MIKADO, Alcona, MI
Built 1991 Load: 40.0 t ADT: 125
BOONE ROAD
GoodOver: SOUTH BR HOG CREEK
QUINCY TWP SEC 12, Branch, MI
Built 1989 Load: 40.0 t ADT: 210
CANTON CENTER ROAD
GoodOver: FELLOWS CREEK
CANTON N/FORD, Wayne, MI
Built 2001 Load: 40.2 t ADT: 30,266
COOK ROAD
GoodOver: DAWE DRAIN
0.2 MI. E. OF TORREY RD., Genesee, MI
Built 1998 Load: 40.5 t ADT: 389
I-69 BL
GoodOver: SAUK RIVER
IN COLDWATER, Branch, MI
Built 1929 Load: 40.8 t ADT: 6,063
200TH AVE
GoodOver: TRIB OF CUSHMAN CREEK
0.18 MI N OF MCKINLEY RD, Oceana, MI
Built 2002 Load: 40.8 t ADT: 100
VEHICLE ENTRANCE
GoodOver: BEAR CREEK
NEAR ARMY PK AUTO CMD, Macomb, MI
Built 2011 Load: 41.4 t ADT: 1,000
SPICERVILLE HWY
GoodOver: BATTLE CREEK RIVER
3 MI N OF DUTTONVILLE, Eaton, MI
Built 1991 Load: 41.5 t ADT: 332
Showing 851-900 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 |