US Bridges

Broomhead Road over S Br Boardman River

Fair

Grand Traverse County, Michigan · 7 Miles S of Williamsburg · Structure no. 000000000003070

Built
1954
71 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
36 ft
2 main spans
Daily traffic
111
2019 count
Owner
County
County Highway Agency

About this bridge

Broomhead Road over S Br Boardman River is a steel culvert carrying Broomhead Road over S Br Boardman River in Grand Traverse County, Michigan. It was built in 1954, so it is 71 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 111 vehicles a day, roughly 9% of them trucks, projected to reach 150 by 2030. The structure is 36 ft (11 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesBroomhead Road
CrossesS Br Boardman River
Location7 Miles S of Williamsburg
RouteCounty Highway 0
CountyGrand Traverse County
StateMichigan
Coordinates44.67539, -85.38651
Functional classRural Minor Collector

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 rating36.7 US tons
Inventory rating29.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2019)
Projected traffic150 by 2030
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Broomhead Road over S Br Boardman River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Broomhead Road over S Br 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 Broomhead Road over S Br Boardman River carry?

About 111 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is Broomhead Road over S Br Boardman River?

The structure is 36 ft (11 m) long with a longest span of 8 ft (2.4 m).

Who owns Broomhead Road over S Br Boardman River?

It is owned by the County Highway Agency.