US Bridges

Washington Road over Pere Marquette River

Fair

Oceana County, Michigan · 8 MI NE of Walkerville · Structure no. 000000000008376

Built
1959
66 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
670
2021 count
Owner
County
County Highway Agency

About this bridge

Washington Road over Pere Marquette River is a prestressed concrete box beam or girders - multiple carrying Washington Road over Pere Marquette River in Oceana County, Michigan. It was built in 1959, so it is 66 years old, older 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 670 vehicles a day, roughly 2% of them trucks, projected to reach 820 by 2041. The structure is 120 ft (36.6 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesWashington Road
CrossesPere Marquette River
Location8 MI NE of Walkerville
RouteCounty Highway 6491
CountyOceana County
StateMichigan
Coordinates43.81594, -86.0846
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width34 ft (10.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2021)
Projected traffic820 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Washington Road over Pere Marquette River built?

It was built in 1959, making it 66 years old in 2025.

What condition is Washington Road over Pere Marquette 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 July 2024.

How much traffic does Washington Road over Pere Marquette River carry?

About 670 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Washington Road over Pere Marquette River?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 34 ft wide.

Who owns Washington Road over Pere Marquette River?

It is owned by the County Highway Agency.