US Bridges

Scharmen RD over Boardman River

Fair

Grand Traverse County, Michigan · 1 MI N & 0.8 M E Mayfield · Structure no. 000000000003062

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
38 ft
2 main spans
Daily traffic
392
2019 count
Owner
County
County Highway Agency

About this bridge

Scharmen RD over Boardman River is a steel culvert carrying Scharmen RD over Boardman River in Grand Traverse County, Michigan. It was built in 1958, so it is 67 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 392 vehicles a day, roughly 16% of them trucks, projected to reach 500 by 2030. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesScharmen RD
CrossesBoardman River
Location1 MI N & 0.8 M E Mayfield
RouteCounty Highway 0
CountyGrand Traverse County
StateMichigan
Coordinates44.64227, -85.51517
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating52.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic392 (2019)
Projected traffic500 by 2030
Trucks16%
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 Scharmen RD over Boardman River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Scharmen RD over Boardman River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Scharmen RD over Boardman River carry?

About 392 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is Scharmen RD over Boardman River?

The structure is 38 ft (11.5 m) long with a longest span of 15 ft (4.5 m).

Who owns Scharmen RD over Boardman River?

It is owned by the County Highway Agency.