US Bridges

Park Entrance over Smith Creek

Good

King County, Washington · Saltwater State Park · Structure no. 086483000000000

Built
1992
33 years old
Condition
Good
inspected March 2023
Type
Slab
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
850
2012 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Park Entrance over Smith Creek is a prestressed concrete slab carrying Park Entrance over Smith Creek in King County, Washington. It was built in 1992, so it is 33 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.

It carries about 850 vehicles a day, projected to reach 1,054 by 2036. The structure is 32 ft (9.8 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesPark Entrance
CrossesSmith Creek
LocationSaltwater State Park
RouteState Lands Road 82001
Coordinates47.373, -122.32325
Functional classUrban 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width34 ft (10.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2012)
Projected traffic1,054 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$410,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Park Entrance over Smith Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Park Entrance over Smith 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 March 2023.

How much traffic does Park Entrance over Smith Creek carry?

About 850 vehicles per day (2012 count).

How long is Park Entrance over Smith Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.

Who owns Park Entrance over Smith Creek?

It is owned by the State Park, Forest, or Reservation Agency.