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
MARATHON ROAD
GoodOver: FLINT RIVER
VILLAGE OF COLUMBIAVILLE, Lapeer, MI
Built 2015 Load: 53.8 t ADT: 1,491
MERRIMAN ROAD
GoodOver: TARABUSI DRAIN
LIVONIA S/SEVEN MILE, Wayne, MI
Built 2022 Load: 53.8 t ADT: 21,637
IRR BIA RTE 1214
GoodOver: PEAVINE CREEK
EDWARDS STREET, Cass, MI
Built 2008 Load: 53.9 t ADT: 25
W KAREN LAKE RD
GoodOver: E BR AUSABLE RIVER
0.1 MI E OF BOBCAT TRAIL, Crawford, MI
Built 2016 Load: 54.4 t ADT: 50
NO DATA ENTERED
GoodOver: PINE RIVER
NO DATA ENTERED, Alcona, MI
Built 2011 Load: 54.8 t ADT: 100
BERRY RD
GoodOver: GRAND RIVER
3 MI E OF RIVES JUNCTION, Jackson, MI
Built 2011 Load: 54.8 t ADT: 2,500
LOOMIS ROAD
GoodOver: TUTTLEVILLE DRAIN
SEC 26-35 AKRON TWP, Tuscola, MI
Built 1980 Load: 54.8 t ADT: 133
I-275 RAMP
GoodOver: MCCLAUGHERY DRAIN
1 MI SW OF WAYNE, Wayne, MI
Built 1974 Load: 54.8 t ADT: 4,160
STURGEON AVENUE
GoodOver: NEWELL DRAIN
LARKIN TWP SEC 29/30, Midland, MI
Built 2019 Load: 55.1 t ADT: 3,328
11 MILE RD
GoodOver: NOVI-LYON DRAIN
LYON TWP SEC 14/23, Oakland, MI
Built 2021 Load: 55.1 t ADT: 140
NORTH POINT DRIVE
GoodOver: LAUGHING WHITEFISH RIVER
1.5 MI N OF DEERTON, Alger, MI
Built 2006 Load: 55.7 t ADT: 50
REMUS ROAD
GoodOver: ONION CREEK
400 FT E OF WISE ROAD, Isabella, MI
Built 2019 Load: 55.7 t ADT: 101
AUSTIN ROAD
GoodOver: SALINE RIVER
SALINE TWP SEC 4, Washtenaw, MI
Built 2015 Load: 55.7 t ADT: 3,335
I-75 SB
GoodOver: GTW RR
IN WOODHAVEN, Wayne, MI
Built 2006 Load: 55.7 t ADT: 36,248
ALLEN ROAD
GoodOver: BROWNSTOWN CREEK
BROWNSTOWN S/VREELAND, Wayne, MI
Built 2020 Load: 55.7 t ADT: 14,720
MOHRLE ROAD
GoodOver: CONWAY COHOCTAH DRAIN
CONWAY TWP SEC 10-11, Livingston, MI
Built 2007 Load: 56.1 t ADT: 1,909
WEST CO LINE RD
GoodOver: TAMARACK CREEK
0.5 MI NORTH OF M-82, Montcalm, MI
Built 2021 Load: 56.1 t ADT: 1,394
BEECH-DALY ROAD
GoodOver: MIDDLE ROUGE RIVER
DBN HTS N/WARREN, Wayne, MI
Built 1953 Load: 56.4 t ADT: 24,549
MAPLE POINT RD
GoodOver: MOLASSES RIVER
250 FT W OF FORNIER RD, Gladwin, MI
Built 2022 Load: 56.7 t ADT: 250
WILSON DRIVE
GoodOver: E FORK SAND CREEK
0.17 MI N OF 3 MILE ROAD, Kent, MI
Built 1996 Load: 57.0 t ADT: 800
E CR 638
GoodOver: GRAND LAKE OUTLET
0.75 MI E OF US-23, Presque Isle, MI
Built 2018 Load: 57.0 t ADT: 718
WEST RIVER ROAD
GoodOver: BLACK CREEK
JEROME TWP SEC 11, Midland, MI
Built 2016 Load: 57.3 t ADT: 350
SUCKER CREEK ROAD
GoodOver: BLACK RIVER
0.64 MI W OF US-23, Alcona, MI
Built 2012 Load: 57.7 t ADT: 100
M-140
GoodOver: PAW PAW LAKE OUTLET
1.7 MI N OF WATERVLIET, Berrien, MI
Built 1958 Load: 57.7 t ADT: 4,525
DAVID HWY
GoodOver: LIBHART CREEK
2 MI S OF IONIA 4.6 MI E, Ionia, MI
Built 2016 Load: 57.7 t ADT: 1,550
CR380 20TH AVE
GoodOver: CEDAR CREEK
0.25 MI EAST OF M-43, Van Buren, MI
Built 2015 Load: 58.3 t ADT: 1,925
WEST BRIDGE STREET
GoodOver: ROGUE RIVER
100 FT E OF RIVER ST, Kent, MI
Built 2002 Load: 59.6 t ADT: 3,300
PICKEREL LAKE ROAD
GoodOver: MINNEHAHA CREEK
SPRINGVALE TWP SEC 5, Emmet, MI
Built 2018 Load: 60.3 t ADT: 1,660
OLD M-20 (ECHO DR)
GoodOver: ROBINSON CREEK
AT BINGHAM AVE & ECHO RD, Newaygo, MI
Built 2023 Load: 60.3 t ADT: 2,377
FISHING LOOP
GoodOver: J TO H SPILLWAY
SEC 18 T45N R13W, Schoolcraft, MI
Built 1943 Load: 60.8 t ADT: 50
NORTHROP STREET
GoodOver: CHRISTIANA CREEK
0.25 MI E OF CHAIN LK ST, Cass, MI
Built 2008 Load: 61.2 t ADT: 143
DATE ROAD
GoodOver: KEELO CREEK
2 MI S OF STEVENSVILLE, Berrien, MI
Built 2014 Load: 61.6 t ADT: 462
M-100
GoodOver: SHARP DRAIN
3.6 MI N OF POTTERVILLE, Eaton, MI
Built 2016 Load: 62.2 t ADT: 5,425
WASHINGTON ROAD
GoodOver: BAD RIVER
SEC 34 LAFAYETTE TWP, Gratiot, MI
Built 2012 Load: 62.2 t ADT: 667
POINT MILLS RD
GoodOver: GOOSENECK CREEK
DOLLAR BAY, Houghton, MI
Built 2021 Load: 62.5 t ADT: 1,778
I-275 NB
GoodOver: MCCLAUGHREY DRAIN
1 MI SW OF WAYNE, Wayne, MI
Built 1974 Load: 62.5 t ADT: 44,965
SUMMERTON ROAD
GoodOver: LEWIS DRAIN
0.6 MI S OF WEIDMAN ROAD, Isabella, MI
Built 2014 Load: 62.9 t ADT: 185
BANWELL RD
GoodOver: CEDAR CREEK
0.63 MI S OF PARKE RD, Emmet, MI
Built 2021 Load: 63.8 t ADT: 700
ROBINSON RD
GoodOver: MAPLE RIVER
1.6 MI E OF PELLSTON, Emmet, MI
Built 2022 Load: 63.8 t ADT: 2,394
HAMLIN ROAD E BD
GoodOver: CLINTON RIVER
BET SQUIRREL AND ADAMS, Oakland, MI
Built 1989 Load: 63.8 t ADT: 6,000
I-75
GoodOver: LITTLE LAKE CREEK
540 FT N OF RAMP B, Monroe, MI
Built 2020 Load: 65.1 t ADT: 58,900
BAY CITY-FORESTVIL
GoodOver: WISCOGGIN DRAIN
SEC 6-7 COLUMBIA TWP, Tuscola, MI
Built 2018 Load: 65.8 t ADT: 1,854
GULLEY ROAD
GoodOver: ECORSE CREEK
IN DEARBORN HEIGHTS, Wayne, MI
Built 1958 Load: 66.1 t ADT: 9,000
TTP BIA 1011
GoodOver: ONION CREEK
SAGINAW CHIPPEWA RES., Isabella, MI
Built 2021 Load: 66.7 t
M-153
GoodOver: FELLOWS CREEK
3.3 MI E OF WASHTENAW COL, Wayne, MI
Built 2006 Load: 66.7 t ADT: 25,833
BLAKELY ROAD
GoodOver: EAST BR. PIGEON RIVER
SEC. 14 GRANT TWP., Huron, MI
Built 2017 Load: 67.4 t ADT: 62
2ND STREET
GoodOver: GUN RIVER
APPROX 1/4 MI N OF 112TH, Allegan, MI
Built 2012 Load: 70.0 t ADT: 580
M-123
GoodOver: BLACK CREEK
3.1 MI S OF PARADISE, Chippewa, MI
Built 2018 Load: 70.3 t ADT: 1,200
AAA ROAD
GoodOver: SALMON TROUT RIVER
CHAMPION TWP SEC 4, Marquette, MI
Built 2014 Load: 70.6 t ADT: 1,400
GARLOCK ROAD
GoodOver: BUTTERNUT CREEK
BLOOMER TWP SEC 11, Montcalm, MI
Built 2016 Load: 71.3 t ADT: 850
Showing 1,001-1,050 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 |