US Bridges

Pierce Stocking DR over Greenan Road

GoodPosted for load

Leelanau County, Michigan · 2.5 Miles from Park Entra · Structure no. 6620001P0000000

Built
1960
65 years old, rebuilt 1986
Condition
Good
inspected September 2023
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
400
2019 count
Owner
Federal
National Park Service

About this bridge

Pierce Stocking DR over Greenan Road is a concrete tee beam carrying Pierce Stocking DR over Greenan Road in Leelanau County, Michigan. It was built in 1960 and reconstructed in 1986, so it is 65 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. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 4% of them trucks, projected to reach 480 by 2039. The structure is 33 ft (10.1 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPierce Stocking DR
CrossesGreenan Road
Location2.5 Miles from Park Entra
RouteFederal Lands Road 12
Coordinates44.86122, -86.04397
Functional classRural Minor 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.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.6 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deck14 ft (4.1 m)

Traffic and service

Average daily traffic400 (2019)
Projected traffic480 by 2039
Trucks4%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$60,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pierce Stocking DR over Greenan Road built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1986.

What condition is Pierce Stocking DR over Greenan Road 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 September 2023.

How much traffic does Pierce Stocking DR over Greenan Road carry?

About 400 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Pierce Stocking DR over Greenan Road?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.

Who owns Pierce Stocking DR over Greenan Road?

It is owned by the National Park Service.