US Bridges

Powers Creek Road over Powers Creek

GoodPosted for load

Grays Harbor County, Washington · 1.5 NE JCT 7815 · Structure no. 080463000000000

Built
1985
40 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
103
2023 count
Owner
County
County Highway Agency

About this bridge

Powers Creek Road over Powers Creek is a prestressed concrete slab carrying Powers Creek Road over Powers Creek in Grays Harbor County, Washington. It was built in 1985, so it is 40 years old, younger than the Washington average of 49.8 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 103 vehicles a day, roughly 15% of them trucks, projected to reach 126 by 2043. The structure is 31 ft (9.5 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesPowers Creek Road
CrossesPowers Creek
Location1.5 NE JCT 7815
RouteCounty Highway 78330
CountyGrays Harbor County
StateWashington
Coordinates47.07267, -123.35467
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span30 ft (9 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2023)
Projected traffic126 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Powers Creek Road over Powers Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Powers Creek Road over Powers Creek 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 December 2023.

How much traffic does Powers Creek Road over Powers Creek carry?

About 103 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Powers Creek Road over Powers Creek?

The structure is 31 ft (9.5 m) long with a longest span of 30 ft (9 m) and a deck 28 ft wide.

Who owns Powers Creek Road over Powers Creek?

It is owned by the County Highway Agency.