US Bridges

Pine River Road over South Branch Pine River

Good

Arenac County, Michigan · 3.0 Miles E of Standish · Structure no. 000000000000432

Built
1981
44 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
108 ft
2 main spans
Daily traffic
2,650
1998 count
Owner
County
County Highway Agency

About this bridge

Pine River Road over South Branch Pine River is a prestressed concrete box beam or girders - multiple carrying Pine River Road over South Branch Pine River in Arenac County, Michigan. It was built in 1981, so it is 44 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 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 2,650 vehicles a day, projected to reach 1,300 by 1977. The structure is 108 ft (32.9 m) long and 43 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesPine River Road
CrossesSouth Branch Pine River
Location3.0 Miles E of Standish
RouteCounty Highway 630
Coordinates43.98296, -83.8935
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length108 ft (32.9 m)
Longest span54 ft (16.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (1998)
Projected traffic1,300 by 1977
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Pine River Road over South Branch Pine River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Pine River Road over South Branch Pine 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 2023.

How much traffic does Pine River Road over South Branch Pine River carry?

About 2,650 vehicles per day (1998 count).

How long is Pine River Road over South Branch Pine River?

The structure is 108 ft (32.9 m) long with a longest span of 54 ft (16.4 m) and a deck 43 ft wide.

Who owns Pine River Road over South Branch Pine River?

It is owned by the County Highway Agency.