US Bridges

South Kingston RD over Carpenter Creek

Good

Kitsap County, Washington · 0.1 S JCT W Kingston RD · Structure no. 088419000000000

Built
2011
14 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
5,324
2023 count
Owner
County
County Highway Agency

About this bridge

South Kingston RD over Carpenter Creek is a prestressed concrete tee beam carrying South Kingston RD over Carpenter Creek in Kitsap County, Washington. It was built in 2011, so it is 14 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 5,324 vehicles a day, roughly 12% of them trucks, projected to reach 5,856 by 2043. The structure is 97 ft (29.6 m) long and 40 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSouth Kingston RD
CrossesCarpenter Creek
Location0.1 S JCT W Kingston RD
RouteCounty Highway 86685
Coordinates47.79467, -122.50719
Functional classUrban 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 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 rating75.4 US tons
Inventory rating53.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length97 ft (29.6 m)
Longest span95 ft (29 m)
Deck width40 ft (12.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,324 (2023)
Projected traffic5,856 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Kingston RD over Carpenter Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is South Kingston RD 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 South Kingston RD over Carpenter Creek carry?

About 5,324 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is South Kingston RD over Carpenter Creek?

The structure is 97 ft (29.6 m) long with a longest span of 95 ft (29 m) and a deck 40 ft wide.

Who owns South Kingston RD over Carpenter Creek?

It is owned by the County Highway Agency.