US Bridges

I-5 over I-705 SR 7 Ramps RR

Good

Pierce County, Washington · 1.3 N JCT SR 16 · Structure no. 0018607C0000000

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Girder and Floorbeam System
Prestressed Concrete Continuous
Length
718 ft
5 main spans
Daily traffic
74,394
2023 count
Owner
State
State Highway Agency

About this bridge

I-5 over I-705 SR 7 Ramps RR is a prestressed concrete continuous girder and floorbeam system carrying I-5 over I-705 SR 7 Ramps RR in Pierce County, Washington. It was built in 2016, so it is 9 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 74,394 vehicles a day, roughly 8% of them trucks, projected to reach 124,242 by 2039. The structure is 718 ft (218.8 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5
CrossesI-705 SR 7 Ramps RR
Location1.3 N JCT SR 16
RouteInterstate 5
CountyPierce County
StateWashington
Coordinates47.23294, -122.43347
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length718 ft (218.8 m)
Longest span170 ft (51.8 m)
Deck width73 ft (22.3 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,394 (2023)
Projected traffic124,242 by 2039
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$24.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 over I-705 SR 7 Ramps RR built?

It was built in 2016, making it 9 years old in 2025.

What condition is I-5 over I-705 SR 7 Ramps RR 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 May 2023.

How much traffic does I-5 over I-705 SR 7 Ramps RR carry?

About 74,394 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-5 over I-705 SR 7 Ramps RR?

The structure is 718 ft (218.8 m) long with a longest span of 170 ft (51.8 m) and a deck 73 ft wide.

Who owns I-5 over I-705 SR 7 Ramps RR?

It is owned by the State Highway Agency.