US Bridges

S 216th ST over I-5

Good

King County, Washington · 1.1 N JCT SR 516 · Structure no. 0007090A0000000

Built
1963
62 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
290 ft
4 main spans
Daily traffic
15,928
2020 count
Owner
State
State Highway Agency

About this bridge

S 216th ST over I-5 is a prestressed concrete stringer/multi-beam or girder carrying S 216th ST over I-5 in King County, Washington. It was built in 1963, so it is 62 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 15,928 vehicles a day, roughly 1% of them trucks, projected to reach 26,414 by 2040. The structure is 290 ft (88.4 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesS 216th ST
CrossesI-5
Location1.1 N JCT SR 516
RouteCity Street 0
CountyKing County
StateWashington
Coordinates47.40819, -122.29258
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span87 ft (26.5 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,928 (2020)
Projected traffic26,414 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$4.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 216th ST over I-5 built?

It was built in 1963, making it 62 years old in 2025.

What condition is S 216th ST 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 November 2023.

How much traffic does S 216th ST over I-5 carry?

About 15,928 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is S 216th ST over I-5?

The structure is 290 ft (88.4 m) long with a longest span of 87 ft (26.5 m) and a deck 36 ft wide.

Who owns S 216th ST over I-5?

It is owned by the State Highway Agency.