US Bridges

W Fort ST over Railroad

Good

King County, Washington · W Fort ST & Gilman Ave W · Structure no. 085223000000000

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
1,600
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Fort ST over Railroad is a prestressed concrete stringer/multi-beam or girder carrying W Fort ST over Railroad in King County, Washington. It was built in 1986, so it is 39 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 1,600 vehicles a day, roughly 5% of them trucks, projected to reach 1,830 by 2045. The structure is 130 ft (39.6 m) long and 38 ft wide.

CarriesW Fort ST
CrossesRailroad
LocationW Fort ST & Gilman Ave W
RouteCity Street 1140
Coordinates47.66106, -122.39228
Functional classUrban Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating23 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span125 ft (38.1 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic1,830 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

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$5.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was W Fort ST over Railroad built?

It was built in 1986, making it 39 years old in 2025.

What condition is W Fort ST over Railroad 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 W Fort ST over Railroad carry?

About 1,600 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is W Fort ST over Railroad?

The structure is 130 ft (39.6 m) long with a longest span of 125 ft (38.1 m) and a deck 38 ft wide.

Who owns W Fort ST over Railroad?

It is owned by the City or Municipal Highway Agency.