US Bridges

Springbrook Road over N Br Boyne River

Good

Charlevoix County, Michigan · 2.0 MI E of Boyne Falls · Structure no. 000000000013843

Built
2012
13 years old
Condition
Good
inspected October 2024
Type
Slab
Wood or Timber
Length
28 ft
1 main span
Daily traffic
100
2012 count
Owner
County
County Highway Agency

About this bridge

Springbrook Road over N Br Boyne River is a wood or timber slab carrying Springbrook Road over N Br Boyne River in Charlevoix County, Michigan. It was built in 2012, so it is 13 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2032. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSpringbrook Road
CrossesN Br Boyne River
Location2.0 MI E of Boyne Falls
RouteCounty Highway 0
Coordinates45.17152, -84.87653
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadGreater than HL 93
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2012)
Projected traffic100 by 2032
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 Springbrook Road over N Br Boyne River built?

It was built in 2012, making it 13 years old in 2025.

What condition is Springbrook Road over N Br Boyne 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 October 2024.

How much traffic does Springbrook Road over N Br Boyne River carry?

About 100 vehicles per day (2012 count), of which roughly 3% are trucks.

How long is Springbrook Road over N Br Boyne River?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns Springbrook Road over N Br Boyne River?

It is owned by the County Highway Agency.