US Bridges

NE West Kingston over Carpenter Creek

Good

Kitsap County, Washington · 1.37 E JCT Miller Bay RD · Structure no. 089001000000000

Built
2017
8 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
150 ft
2 main spans
Daily traffic
4,676
2023 count
Owner
County
County Highway Agency

About this bridge

NE West Kingston over Carpenter Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying NE West Kingston over Carpenter Creek in Kitsap County, Washington. It was built in 2017, so it is 8 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 4,676 vehicles a day, roughly 13% of them trucks, projected to reach 5,180 by 2041. The structure is 150 ft (45.7 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNE West Kingston
CrossesCarpenter Creek
Location1.37 E JCT Miller Bay RD
RouteCounty Highway 86671
Coordinates47.7949, -122.51241
Functional classRural Major Collector

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating54.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length150 ft (45.7 m)
Longest span71 ft (21.5 m)
Deck width42 ft (12.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,676 (2023)
Projected traffic5,180 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NE West Kingston over Carpenter Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is NE West Kingston over Carpenter 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 May 2024.

How much traffic does NE West Kingston over Carpenter Creek carry?

About 4,676 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NE West Kingston over Carpenter Creek?

The structure is 150 ft (45.7 m) long with a longest span of 71 ft (21.5 m) and a deck 42 ft wide.

Who owns NE West Kingston over Carpenter Creek?

It is owned by the County Highway Agency.