US Bridges

Burnt Mill Road over Platte River

Good

Benzie County, Michigan · Inland Twp Sec 4 · Structure no. 000000000013575

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
58 ft
3 main spans
Daily traffic
53
2010 count
Owner
County
County Highway Agency

About this bridge

Burnt Mill Road over Platte River is a wood or timber stringer/multi-beam or girder carrying Burnt Mill Road over Platte River in Benzie County, Michigan. It was built in 2010, so it is 15 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 53 vehicles a day, roughly 3% of them trucks, projected to reach 79 by 2020. The structure is 58 ft (17.7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBurnt Mill Road
CrossesPlatte River
LocationInland Twp Sec 4
RouteCounty Highway 0
Coordinates44.68506, -85.88869
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span26 ft (7.9 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2010)
Projected traffic79 by 2020
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Burnt Mill Road over Platte River built?

It was built in 2010, making it 15 years old in 2025.

What condition is Burnt Mill Road over Platte River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Burnt Mill Road over Platte River carry?

About 53 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is Burnt Mill Road over Platte River?

The structure is 58 ft (17.7 m) long with a longest span of 26 ft (7.9 m) and a deck 30 ft wide.

Who owns Burnt Mill Road over Platte River?

It is owned by the County Highway Agency.