US Bridges

Grove ST over Pine River

Good

Arenac County, Michigan · 0.23 MI S of Wyatt RD · Structure no. 000000000014559

Built
1969
56 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
35 ft
1 main span
Daily traffic
3,306
2021 count
Owner
County
County Highway Agency

About this bridge

Grove ST over Pine River is a steel culvert carrying Grove ST over Pine River in Arenac County, Michigan. It was built in 1969, so it is 56 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 3,306 vehicles a day, roughly 5% of them trucks, projected to reach 3,802 by 2041. The structure is 35 ft (10.7 m) long.

CarriesGrove ST
CrossesPine River
Location0.23 MI S of Wyatt RD
RouteCounty Highway 631
Coordinates44.00835, -83.95712
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,306 (2021)
Projected traffic3,802 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Grove ST over Pine River built?

It was built in 1969, making it 56 years old in 2025.

What condition is Grove ST over 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 2024.

How much traffic does Grove ST over Pine River carry?

About 3,306 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Grove ST over Pine River?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m).

Who owns Grove ST over Pine River?

It is owned by the County Highway Agency.