US Bridges

I-5 S-E Ramp over Terrain

Good

Pierce County, Washington · WB Nalley Valley · Structure no. 0017594C0000000

Built
2011
14 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
420 ft
4 main spans
Daily traffic
3,842
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 S-E Ramp over Terrain is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 S-E Ramp over Terrain in Pierce County, Washington. It was built in 2011, so it is 14 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 3,842 vehicles a day, roughly 10% of them trucks, projected to reach 5,732 by 2039. The structure is 420 ft (128 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 S-E Ramp
CrossesTerrain
LocationWB Nalley Valley
RouteInterstate 5
CountyPierce County
StateWashington
Coordinates47.23411, -122.46347
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length420 ft (128 m)
Longest span98 ft (29.9 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,842 (2022)
Projected traffic5,732 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 S-E Ramp over Terrain built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-5 S-E Ramp over Terrain 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 2023.

How much traffic does I-5 S-E Ramp over Terrain carry?

About 3,842 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is I-5 S-E Ramp over Terrain?

The structure is 420 ft (128 m) long with a longest span of 98 ft (29.9 m) and a deck 29 ft wide.

Who owns I-5 S-E Ramp over Terrain?

It is owned by the State Highway Agency.