US Bridges

Seabeck-Holly RD over Anderson Creek

Good

Kitsap County, Washington · 0.01 SW JCT Old Hollyhill · Structure no. 089000000000000

Built
2017
8 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
310
2023 count
Owner
County
County Highway Agency

About this bridge

Seabeck-Holly RD over Anderson Creek is a prestressed concrete slab carrying Seabeck-Holly RD over Anderson 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 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 310 vehicles a day, roughly 17% of them trucks, projected to reach 320 by 2041. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSeabeck-Holly RD
CrossesAnderson Creek
Location0.01 SW JCT Old Hollyhill
RouteCounty Highway 11300
Coordinates47.56678, -122.96767
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 rating78.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2023)
Projected traffic320 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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$522,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Seabeck-Holly RD over Anderson Creek built?

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

What condition is Seabeck-Holly RD over Anderson 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 June 2024.

How much traffic does Seabeck-Holly RD over Anderson Creek carry?

About 310 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Seabeck-Holly RD over Anderson Creek?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 29 ft wide.

Who owns Seabeck-Holly RD over Anderson Creek?

It is owned by the County Highway Agency.