US Bridges

Homestead Vlly RD over S Fk Snoqualmie River

Poor

King County, Washington · 0.1 S JCT I-90 · Structure no. 0009534C0000000

Built
1974
51 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
216 ft
3 main spans
Daily traffic
200
2013 count
Owner
State
State Highway Agency

About this bridge

Homestead Vlly RD over S Fk Snoqualmie River is a prestressed concrete continuous stringer/multi-beam or girder carrying Homestead Vlly RD over S Fk Snoqualmie River in King County, Washington. It was built in 1974, so it is 51 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 262 by 2033. The structure is 216 ft (65.8 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesHomestead Vlly RD
CrossesS Fk Snoqualmie River
Location0.1 S JCT I-90
RouteCounty Highway 90
Coordinates47.44164, -121.66853
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length216 ft (65.8 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2013)
Projected traffic262 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$3.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Homestead Vlly RD over S Fk Snoqualmie River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Homestead Vlly RD over S Fk Snoqualmie River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Homestead Vlly RD over S Fk Snoqualmie River carry?

About 200 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Homestead Vlly RD over S Fk Snoqualmie River?

The structure is 216 ft (65.8 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns Homestead Vlly RD over S Fk Snoqualmie River?

It is owned by the State Highway Agency.