US Bridges

SR 516 over Green River

Good

King County, Washington · 2.3 E JCT I-5 · Structure no. 0012383A0000000

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
367 ft
3 main spans
Daily traffic
12,389
2023 count
Owner
State
State Highway Agency

About this bridge

SR 516 over Green River is a prestressed concrete continuous box beam or girders - multiple carrying SR 516 over Green River in King County, Washington. It was built in 1984, so it is 41 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 12,389 vehicles a day, roughly 5% of them trucks, projected to reach 16,254 by 2039. The structure is 367 ft (111.9 m) long and 77 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSR 516
CrossesGreen River
Location2.3 E JCT I-5
RouteState Highway 516
Coordinates47.37703, -122.25762
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length367 ft (111.9 m)
Longest span145 ft (44.2 m)
Deck width77 ft (23.5 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,389 (2023)
Projected traffic16,254 by 2039
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed8.7 mi (14 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$13.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 516 over Green River built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR 516 over Green River 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 September 2023.

How much traffic does SR 516 over Green River carry?

About 12,389 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 516 over Green River?

The structure is 367 ft (111.9 m) long with a longest span of 145 ft (44.2 m) and a deck 77 ft wide.

Who owns SR 516 over Green River?

It is owned by the State Highway Agency.