US Bridges

S 277th ST over Green Rv & Green Rv Rd.

Good

King County, Washington · Green River at S 277th ST · Structure no. 087150000000000

Built
2000
25 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
467 ft
3 main spans
Daily traffic
22,100
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

S 277th ST over Green Rv & Green Rv Rd. is a concrete box beam or girders - multiple carrying S 277th ST over Green Rv & Green Rv Rd. in King County, Washington. It was built in 2000, so it is 25 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 22,100 vehicles a day, roughly 5% of them trucks, projected to reach 23,000 by 2040. The structure is 467 ft (142.3 m) long and 81 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesS 277th ST
CrossesGreen Rv & Green Rv Rd.
LocationGreen River at S 277th ST
RouteCity Street 615
CountyKing County
StateWashington
Coordinates47.35444, -122.20994
Functional classUrban Other Principal 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length467 ft (142.3 m)
Longest span183 ft (55.8 m)
Deck width81 ft (24.7 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,100 (2024)
Projected traffic23,000 by 2040
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$33.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S 277th ST over Green Rv & Green Rv Rd. built?

It was built in 2000, making it 25 years old in 2025.

What condition is S 277th ST over Green Rv & Green Rv Rd. 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 April 2024.

How much traffic does S 277th ST over Green Rv & Green Rv Rd. carry?

About 22,100 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is S 277th ST over Green Rv & Green Rv Rd.?

The structure is 467 ft (142.3 m) long with a longest span of 183 ft (55.8 m) and a deck 81 ft wide.

Who owns S 277th ST over Green Rv & Green Rv Rd.?

It is owned by the City or Municipal Highway Agency.