US Bridges

SR 3 over SR 310/KITSAP Way

Good

Kitsap County, Washington · 3.5 N JCT SR 304 · Structure no. 0009476B0000000

Built
1974
51 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
209 ft
3 main spans
Daily traffic
23,583
2023 count
Owner
State
State Highway Agency

About this bridge

SR 3 over SR 310/KITSAP Way is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 3 over SR 310/KITSAP Way in Kitsap County, Washington. It was built in 1974, so it is 51 years old, older 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 23,583 vehicles a day, roughly 5% of them trucks, projected to reach 30,395 by 2039. The structure is 209 ft (63.7 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 3
CrossesSR 310/KITSAP Way
Location3.5 N JCT SR 304
RouteState Highway 3
CountyKitsap County
StateWashington
Coordinates47.56931, -122.68431
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length209 ft (63.7 m)
Longest span106 ft (32.2 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,583 (2023)
Projected traffic30,395 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 3 over SR 310/KITSAP Way built?

It was built in 1974, making it 51 years old in 2025.

What condition is SR 3 over SR 310/KITSAP Way 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 April 2023.

How much traffic does SR 3 over SR 310/KITSAP Way carry?

About 23,583 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 3 over SR 310/KITSAP Way?

The structure is 209 ft (63.7 m) long with a longest span of 106 ft (32.2 m) and a deck 46 ft wide.

Who owns SR 3 over SR 310/KITSAP Way?

It is owned by the State Highway Agency.