US Bridges

SR 7 NB over SR 7 SB

Good

Pierce County, Washington · 5.6 N JCT SR 512 · Structure no. 0007326E0000000

Built
1965
60 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
230 ft
3 main spans
Daily traffic
15,025
2023 count
Owner
State
State Highway Agency

About this bridge

SR 7 NB over SR 7 SB is a concrete continuous box beam or girders - multiple carrying SR 7 NB over SR 7 SB in Pierce County, Washington. It was built in 1965, so it is 60 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 15,025 vehicles a day, roughly 4% of them trucks, projected to reach 21,675 by 2039. The structure is 230 ft (70.1 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 7 NB
CrossesSR 7 SB
Location5.6 N JCT SR 512
RouteState Highway 7
Coordinates47.23259, -122.43197
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating90.9 US tons
Inventory rating54 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length230 ft (70.1 m)
Longest span85 ft (25.9 m)
Deck width38 ft (11.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,025 (2023)
Projected traffic21,675 by 2039
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$4.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 7 NB over SR 7 SB built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR 7 NB over SR 7 SB 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 November 2024.

How much traffic does SR 7 NB over SR 7 SB carry?

About 15,025 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 7 NB over SR 7 SB?

The structure is 230 ft (70.1 m) long with a longest span of 85 ft (25.9 m) and a deck 38 ft wide.

Who owns SR 7 NB over SR 7 SB?

It is owned by the State Highway Agency.