US Bridges

W. Snoq Valley RD over Tuck Creek

Fair

King County, Washington · JCT W Snoq Valley RD · Structure no. 086443000000000

Built
1999
26 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
5,973
2019 count
Owner
County
County Highway Agency

About this bridge

W. Snoq Valley RD over Tuck Creek is a steel stringer/multi-beam or girder carrying W. Snoq Valley RD over Tuck Creek in King County, Washington. It was built in 1999, so it is 26 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 5,973 vehicles a day, projected to reach 10,790 by 2039. The structure is 30 ft (9.1 m) long and 14 ft wide.

Location

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CarriesW. Snoq Valley RD
CrossesTuck Creek
LocationJCT W Snoq Valley RD
RouteCounty Highway 96812
CountyKing County
StateWashington
Coordinates47.74366, -122.00906
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span26 ft (7.9 m)
Deck width14 ft (4.3 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,973 (2019)
Projected traffic10,790 by 2039
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$499,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W. Snoq Valley RD over Tuck Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is W. Snoq Valley RD over Tuck Creek 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 August 2023.

How much traffic does W. Snoq Valley RD over Tuck Creek carry?

About 5,973 vehicles per day (2019 count).

How long is W. Snoq Valley RD over Tuck Creek?

The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m) and a deck 14 ft wide.

Who owns W. Snoq Valley RD over Tuck Creek?

It is owned by the County Highway Agency.