US Bridges

304 ST E over South Creek

Good

Pierce County, Washington · .68 W JCT SR7 · Structure no. 087711000000000

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
1,675
2024 count
Owner
County
County Highway Agency

About this bridge

304 ST E over South Creek is a prestressed concrete tee beam carrying 304 ST E over South Creek in Pierce County, Washington. It was built in 2008, so it is 17 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 1,675 vehicles a day, roughly 5% of them trucks, projected to reach 2,800 by 2040. The structure is 90 ft (27.4 m) long and 38 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Carries304 ST E
CrossesSouth Creek
Location.68 W JCT SR7
RouteCounty Highway 45560
Coordinates46.99694, -122.37167
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span85 ft (25.9 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,675 (2024)
Projected traffic2,800 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 304 ST E over South Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is 304 ST E over South 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 August 2024.

How much traffic does 304 ST E over South Creek carry?

About 1,675 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 304 ST E over South Creek?

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 38 ft wide.

Who owns 304 ST E over South Creek?

It is owned by the County Highway Agency.