US Bridges

Seabeck HWY NW over Seabeck Creek

Good

Kitsap County, Washington · 0.1 S JCT Foley Lane NW · Structure no. 088218000000000

Built
2010
15 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
3,662
2023 count
Owner
County
County Highway Agency

About this bridge

Seabeck HWY NW over Seabeck Creek is a concrete culvert carrying Seabeck HWY NW over Seabeck Creek in Kitsap County, Washington. It was built in 2010, so it is 15 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 3,662 vehicles a day, roughly 16% of them trucks, projected to reach 4,028 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSeabeck HWY NW
CrossesSeabeck Creek
Location0.1 S JCT Foley Lane NW
RouteCounty Highway 11709
Coordinates47.62389, -122.83806
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,662 (2023)
Projected traffic4,028 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$387,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Seabeck HWY NW over Seabeck Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Seabeck HWY NW over Seabeck 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 HWY NW over Seabeck Creek carry?

About 3,662 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Seabeck HWY NW over Seabeck Creek?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns Seabeck HWY NW over Seabeck Creek?

It is owned by the County Highway Agency.