US Bridges

Pine Grove Road over S Branch Pine River

Poor

Montcalm County, Michigan · Pine Grove 0.01 N Edgar · Structure no. 000000000007522

Built
1920
105 years old, rebuilt 2004
Condition
Poor
inspected March 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
333
2003 count
Owner
County
County Highway Agency

About this bridge

Pine Grove Road over S Branch Pine River is a wood or timber slab carrying Pine Grove Road over S Branch Pine River in Montcalm County, Michigan. It was built in 1920 and reconstructed in 2004, so it is 105 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 333 vehicles a day, projected to reach 432 by 2023. The structure is 26 ft (7.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPine Grove Road
CrossesS Branch Pine River
LocationPine Grove 0.01 N Edgar
RouteCounty Highway 0
Coordinates43.42304, -84.95025
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating39.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (7.9 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic333 (2003)
Projected traffic432 by 2023
Trucks0%
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 Pine Grove Road over S Branch Pine River built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2004.

What condition is Pine Grove Road over S Branch Pine River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Pine Grove Road over S Branch Pine River carry?

About 333 vehicles per day (2003 count).

How long is Pine Grove Road over S Branch Pine River?

The structure is 26 ft (7.9 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Pine Grove Road over S Branch Pine River?

It is owned by the County Highway Agency.