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
WHITTAKER ROAD
GoodOver: PAINT CREEK
AUGUSTA TWP SEC 9 & 10, Washtenaw, MI
Built 2007 Load: 47.2 t ADT: 3,400
NORTH DIXIE HWY
GoodOver: LITTLE SWAN CREEK
0.6 MI S OF SWAN CREEK RD, Monroe, MI
Built 2002 Load: 47.3 t ADT: 5,090
DRAKE ROAD
GoodOver: MINNOW POND DRAIN
0.35 MI N OF 13 MILE ROAD, Oakland, MI
Built 2016 Load: 47.3 t ADT: 9,550
I-275 SB ON RAMP
GoodOver: MCCLAUGHREY DRAIN
1 MI SW OF WAYNE, Wayne, MI
Built 1974 Load: 47.3 t ADT: 4,460
SUMMERTON ROAD
GoodOver: LITTLE SALT RIVER
0.5 MI S OF COE RD, Isabella, MI
Built 2007 Load: 47.7 t ADT: 45
S SALT POINT RD
GoodOver: E BR TAHQUAMENON RIVER
0.44 MI N OF M-28, Chippewa, MI
Built 2010 Load: 48.0 t ADT: 94
CR 669
GoodOver: SHALDA CREEK
0.24 MI N OF M-22, Leelanau, MI
Built 2020 Load: 48.0 t ADT: 700
WIXOM ROAD
GoodOver: HURON RIVER
NORTH OF GARDEN, Oakland, MI
Built 2018 Load: 48.0 t ADT: 9,900
FR 210
GoodOver: NUTHATCH CREEK
4.4 MILES NORTH OF M-28, Ontonagon, MI
Built 2010 Load: 48.0 t ADT: 6
DUNLOP RD
GoodOver: LITTLE TOBACCO DRAIN
0.34 MI W OF N MCEWAN ST, Clare, MI
Built 2022 Load: 48.6 t ADT: 50
GODDARD ROAD
GoodOver: SEXTON KILFOIL DRAIN
ALLEN PARK E/OLD GODDARD, Wayne, MI
Built 2021 Load: 48.6 t ADT: 8,664
SOUTH MINGES ROAD
GoodOver: MINGES BROOK
500 FT N OF ABRAM AVE, Calhoun, MI
Built 2014 Load: 48.9 t ADT: 3,000
WEIDMAN ROAD
GoodOver: NORTH BR CHIPPEWA RIVER
0.4M E NW COR SEC 24 T15N, Isabella, MI
Built 2000 Load: 49.1 t ADT: 1,275
BEARD RD
GoodOver: NEAL DRAIN
0.1 MI EAST OF BLIVEN RD, Shiawassee, MI
Built 2007 Load: 49.2 t ADT: 927
LOTZ ROAD
GoodOver: FELLOWS CREEK
CANTON N/PALMER, Wayne, MI
Built 1981 Load: 49.2 t ADT: 1,586
FORD RD
GoodOver: BROWNSTOWN CREEK
200 FT N OF VAN HORN RD, Wayne, MI
Built 2017 Load: 49.2 t ADT: 200
HURON RIVER DRIVE
GoodOver: HURON RIVER
SCIO TWP SECTION 11, Washtenaw, MI
Built 1994 Load: 49.4 t ADT: 3,534
DUPONT RD (OMA)
GoodOver: MONTREAL RIVER
IRONWOOD/OMA (WIS), Gogebic, MI
Built 2003 Load: 49.6 t ADT: 100
VAN HORN ROAD
GoodOver: SMITH CREEK
BROWNSTOWN E/ARSENAL, Wayne, MI
Built 2017 Load: 49.6 t ADT: 8,920
M-6 EB
GoodOver: RUSH CREEK
0.6 MI E OF WILSON AVE, Kent, MI
Built 2002 Load: 49.9 t ADT: 22,828
I-696
GoodOver: MINNOW POND DRAIN
0.5 MI E OF FARMINGTON RD, Oakland, MI
Built 2023 Load: 49.9 t ADT: 129,433
MONROE ROAD
GoodOver: NEWELL DRAIN
LARKIN TWP SEC 20/29, Midland, MI
Built 2020 Load: 50.2 t ADT: 2,317
ELMWOOD ROAD
GoodOver: WISCOGGIN DRAIN
SEC 31 COLUMBIA TWP, Tuscola, MI
Built 2013 Load: 50.2 t ADT: 202
OTIS ROAD
GoodOver: COLDWATER RIVER
OVID TWP SEC 16, Branch, MI
Built 1999 Load: 50.5 t ADT: 33
M-6 EB C-D
GoodOver: NORFOLK SOUTHERN RR
BYRON TWP SEC 1, Kent, MI
Built 2000 Load: 50.5 t ADT: 15,300
WATTLES ROAD
GoodOver: ROUGE RIVER
0.4 MI E OF ADAMS ROAD, Oakland, MI
Built 1957 Load: 50.5 t ADT: 8,500
SCENIC DRIVE
GoodOver: DUCK LAKE CHANNEL
OUTLET OF DUCK LAKE, Muskegon, MI
Built 2004 Load: 50.8 t ADT: 1,850
I-196 EB/US-31 NB
GoodOver: KUIPERS DRAIN
AT JCT OF US-31NB&I-196EB, Allegan, MI
Built 2012 Load: 50.9 t ADT: 6,700
EDGEWATER DRIVE
GoodOver: PAW PAW RIVER
BENTON HARBOR/ST JOSEPH, Berrien, MI
Built 2004 Load: 50.9 t ADT: 4,000
D DRIVE N
GoodOver: HARPER CREEK
500 FT W OF 8 MI RD, Calhoun, MI
Built 2019 Load: 50.9 t ADT: 1,200
FISH LAKE RD
GoodOver: SHIAWASSEE RIVER
HOLLY TWP SEC 29/28, Oakland, MI
Built 2022 Load: 50.9 t ADT: 3,780
SHAYS LAKE ROAD
GoodOver: SUCKER CREEK DRAIN
SEC 11-14 DAYTON TWP, Tuscola, MI
Built 2018 Load: 50.9 t ADT: 480
INDIAN TRAIL
GoodOver: POLLY ANN TRAIL
IN SUBDIVISION SEC 3, Oakland, MI
Built 1999 Load: 51.0 t ADT: 500
GARDNER RD
GoodOver: S BR FLINT RIVER
0.25 MI N OF E BROCKER RD, Lapeer, MI
Built 2021 Load: 51.5 t ADT: 100
M-89
GoodOver: KALAMAZOO RIVER OVERFLOW
6.0 MI E OF FENNVILLE, Allegan, MI
Built 1952 Load: 51.8 t ADT: 4,275
I-75
GoodOver: LANE DRAIN
I-75, Oakland, MI
Built 2020 Load: 51.8 t ADT: 103,878
M-231
GoodOver: BEELINE DRAIN
2.5 MI N OF M-45, Ottawa, MI
Built 2015 Load: 51.8 t ADT: 5,750
DENNISON ROAD
GoodOver: SALINE RIVER
YORK TWP SEC 28, Washtenaw, MI
Built 1965 Load: 51.8 t ADT: 1,049
WAVELAND RD
GoodOver: MILLIGAN CREEK
500 FT N OF W BRADY RD, Cheboygan, MI
Built 2018 Load: 52.2 t ADT: 50
W BRADY RD
GoodOver: MILLIGAN CREEK
0.8 MI E OF ETHINGTON RD, Cheboygan, MI
Built 2018 Load: 52.2 t ADT: 50
BENSCH RD
GoodOver: MID BR TITTABAWASSE RIV
0.68 MI S OF M-30, Gladwin, MI
Built 2022 Load: 52.2 t ADT: 450
COLONIAL ROAD
GoodOver: MARQUETTE RAILROAD
ASHLAND TWP SEC 1, Newaygo, MI
Built 2019 Load: 52.5 t ADT: 500
SALO RD
GoodOver: LILY CREEK
0.38 MI S OF WAASA RD, Houghton, MI
Built 2018 Load: 52.8 t ADT: 296
INSELRUHE AVE
GoodOver: NASHUA CANAL
BELLE ISLE, Wayne, MI
Built 1999 Load: 52.8 t ADT: 308
JENNINGS ROAD
GoodOver: SWARTZ CREEK
BET HILL ROAD & MAPLE AVE, Genesee, MI
Built 2017 Load: 53.1 t ADT: 230
US-23 NB
GoodOver: MDOT RR CORRIDOR
0.5 MI S OF LIVINGSTON CO, Washtenaw, MI
Built 2017 Load: 53.1 t ADT: 33,375
I-275 SB
GoodOver: CSX RR
IN ROMULUS, Wayne, MI
Built 1973 Load: 53.1 t ADT: 35,403
CARTER RD
GoodOver: GILCHRIST CREEK
0.28 MI E OF M-33, Montmorency, MI
Built 2021 Load: 53.5 t ADT: 150
SHARON VALLEY ROAD
GoodOver: RIVER RAISIN
SHARON TWP SEC 31, Washtenaw, MI
Built 2019 Load: 53.5 t ADT: 997
MCKINLEY RD(C 600)
GoodOver: CHERRY CREEK
MENTOR TWP SEC 5, Oscoda, MI
Built 2003 Load: 53.7 t ADT: 1,430
Showing 951-1,000 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 |