US Bridges

SR 164 over Pussyfoot Creek

Good

King County, Washington · 7.9 E JCT SR 18 · Structure no. 0019609A0000000

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
168 ft
1 main span
Daily traffic
10,707
2023 count
Owner
State
State Highway Agency

About this bridge

SR 164 over Pussyfoot Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 164 over Pussyfoot Creek in King County, Washington. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,707 vehicles a day, roughly 8% of them trucks, projected to reach 46,425 by 2039. The structure is 168 ft (51.2 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 164
CrossesPussyfoot Creek
Location7.9 E JCT SR 18
RouteState Highway 164
Coordinates47.23338, -122.10562
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length168 ft (51.2 m)
Longest span163 ft (49.6 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,707 (2023)
Projected traffic46,425 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 164 over Pussyfoot Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR 164 over Pussyfoot 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 November 2023.

How much traffic does SR 164 over Pussyfoot Creek carry?

About 10,707 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 164 over Pussyfoot Creek?

The structure is 168 ft (51.2 m) long with a longest span of 163 ft (49.6 m) and a deck 40 ft wide.

Who owns SR 164 over Pussyfoot Creek?

It is owned by the State Highway Agency.