US Bridges

Betsie River Road over Betsie River

Good

Grand Traverse County, Michigan · 1.3 M NW of Karlin · Structure no. 000000000003057

Built
1973
52 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
532
2019 count
Owner
County
County Highway Agency

About this bridge

Betsie River Road over Betsie River is a steel culvert carrying Betsie River Road over Betsie River in Grand Traverse County, Michigan. It was built in 1973, so it is 52 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 532 vehicles a day, roughly 25% of them trucks, projected to reach 600 by 2030. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBetsie River Road
CrossesBetsie River
Location1.3 M NW of Karlin
RouteCounty Highway 0
Coordinates44.59278, -85.79657
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span25 ft (7.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic532 (2019)
Projected traffic600 by 2030
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Betsie River Road over Betsie River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Betsie River Road over Betsie 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 Betsie River Road over Betsie River carry?

About 532 vehicles per day (2019 count), of which roughly 25% are trucks.

How long is Betsie River Road over Betsie River?

The structure is 25 ft (7.5 m) long with a longest span of 25 ft (7.5 m).

Who owns Betsie River Road over Betsie River?

It is owned by the County Highway Agency.