US Bridges

Old Stronach Road over Little Manistee River

Fair

Manistee County, Michigan · 1.5 Mile East of Stronach · Structure no. 000000000006468

Built
2011
14 years old
Condition
Fair
inspected May 2024
Type
Slab
Wood or Timber
Length
109 ft
4 main spans
Daily traffic
280
1993 count
Owner
County
County Highway Agency

About this bridge

Old Stronach Road over Little Manistee River is a wood or timber slab carrying Old Stronach Road over Little Manistee River in Manistee County, Michigan. It was built in 2011, so it is 14 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 280 vehicles a day, roughly 2% of them trucks, projected to reach 450 by 2018. The structure is 109 ft (33.3 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesOld Stronach Road
CrossesLittle Manistee River
Location1.5 Mile East of Stronach
RouteCounty Highway 0
Coordinates44.21021, -86.24504
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20 + Mod
Structure length109 ft (33.3 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (1993)
Projected traffic450 by 2018
Trucks2%
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 Old Stronach Road over Little Manistee River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Old Stronach Road over Little Manistee River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Old Stronach Road over Little Manistee River carry?

About 280 vehicles per day (1993 count), of which roughly 2% are trucks.

How long is Old Stronach Road over Little Manistee River?

The structure is 109 ft (33.3 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns Old Stronach Road over Little Manistee River?

It is owned by the County Highway Agency.