US Bridges

South Vaughn RD NW over Vaughn Bay

Good

Pierce County, Washington · 1.0 E JCT SR 302 · Structure no. 088161000000000

Built
2010
15 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
219 ft
1 main span
Daily traffic
2,175
2020 count
Owner
County
County Highway Agency

About this bridge

South Vaughn RD NW over Vaughn Bay is a concrete stringer/multi-beam or girder carrying South Vaughn RD NW over Vaughn Bay in Pierce 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 2,175 vehicles a day, roughly 5% of them trucks, projected to reach 3,600 by 2040. The structure is 219 ft (66.8 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth Vaughn RD NW
CrossesVaughn Bay
Location1.0 E JCT SR 302
RouteCounty Highway 92190
Coordinates47.34118, -122.76404
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum 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 rating52 US tons
Inventory rating31 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length219 ft (66.8 m)
Longest span214 ft (65.2 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,175 (2020)
Projected traffic3,600 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Vaughn RD NW over Vaughn Bay built?

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

What condition is South Vaughn RD NW over Vaughn Bay 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 South Vaughn RD NW over Vaughn Bay carry?

About 2,175 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is South Vaughn RD NW over Vaughn Bay?

The structure is 219 ft (66.8 m) long with a longest span of 214 ft (65.2 m) and a deck 38 ft wide.

Who owns South Vaughn RD NW over Vaughn Bay?

It is owned by the County Highway Agency.