US Bridges

Wynooche Valley RD over (unnamed Tributary)

Fair

Grays Harbor County, Washington · 24.23 Miles N. SR12 · Structure no. 087970000000000

Built
2003
22 years old
Condition
Fair
inspected December 2022
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
217
2022 count
Owner
County
County Highway Agency

About this bridge

Wynooche Valley RD over (unnamed Tributary) is a steel culvert carrying Wynooche Valley RD over (unnamed Tributary) in Grays Harbor County, Washington. It was built in 2003, so it is 22 years old, younger than the Washington average of 49.8 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 217 vehicles a day, roughly 20% of them trucks, projected to reach 265 by 2042. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWynooche Valley RD
Crosses(unnamed Tributary)
Location24.23 Miles N. SR12
RouteCounty Highway 95190
CountyGrays Harbor County
StateWashington
Coordinates47.25792, -123.61486
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadOther
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic217 (2022)
Projected traffic265 by 2042
Trucks20%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wynooche Valley RD over (unnamed Tributary) built?

It was built in 2003, making it 22 years old in 2025.

What condition is Wynooche Valley RD over (unnamed Tributary) 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 December 2022.

How much traffic does Wynooche Valley RD over (unnamed Tributary) carry?

About 217 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Wynooche Valley RD over (unnamed Tributary)?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns Wynooche Valley RD over (unnamed Tributary)?

It is owned by the County Highway Agency.