US Bridges

70th Ave E over I-5

Good

Pierce County, Washington · 0.9 N JCT SR 99 · Structure no. 0019333A0000000

Built
2021
4 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
226 ft
1 main span
Daily traffic
17,977
2020 count
Owner
State
State Highway Agency

About this bridge

70th Ave E over I-5 is a prestressed concrete stringer/multi-beam or girder carrying 70th Ave E over I-5 in Pierce County, Washington. It was built in 2021, so it is 4 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 17,977 vehicles a day, roughly 30% of them trucks, projected to reach 28,888 by 2040. The structure is 226 ft (68.9 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries70th Ave E
CrossesI-5
Location0.9 N JCT SR 99
RouteCounty Highway 0
CountyPierce County
StateWashington
Coordinates47.24223, -122.33855
Functional classUrban 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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length226 ft (68.9 m)
Longest span220 ft (67.1 m)
Deck width69 ft (21 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,977 (2020)
Projected traffic28,888 by 2040
Trucks30%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$5.9 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 70th Ave E over I-5 built?

It was built in 2021, making it 4 years old in 2025.

What condition is 70th Ave E over I-5 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 July 2023.

How much traffic does 70th Ave E over I-5 carry?

About 17,977 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is 70th Ave E over I-5?

The structure is 226 ft (68.9 m) long with a longest span of 220 ft (67.1 m) and a deck 69 ft wide.

Who owns 70th Ave E over I-5?

It is owned by the State Highway Agency.