US Bridges

SR 202 over Snoqualmie River

Poor

King County, Washington · 4.2 E JCT SR 203 · Structure no. 0001480A0000000

Built
1931
94 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
444 ft
1 main span
Daily traffic
9,740
2023 count
Owner
State
State Highway Agency

About this bridge

SR 202 over Snoqualmie River is a steel truss - thru carrying SR 202 over Snoqualmie River in King County, Washington. It was built in 1931, so it is 94 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 9,740 vehicles a day, roughly 7% of them trucks, projected to reach 13,697 by 2039. The structure is 444 ft (135.3 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 202
CrossesSnoqualmie River
Location4.2 E JCT SR 203
RouteState Highway 202
CountyKing County
StateWashington
Coordinates47.53942, -121.83269
Functional classUrban Minor Arterial

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+5 approach)
Design loadH 15
Structure length444 ft (135.3 m)
Longest span220 ft (67.1 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic9,740 (2023)
Projected traffic13,697 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 202 over Snoqualmie River built?

It was built in 1931, making it 94 years old in 2025.

What condition is SR 202 over 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 September 2024.

How much traffic does SR 202 over Snoqualmie River carry?

About 9,740 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 202 over Snoqualmie River?

The structure is 444 ft (135.3 m) long with a longest span of 220 ft (67.1 m) and a deck 25 ft wide.

Who owns SR 202 over Snoqualmie River?

It is owned by the State Highway Agency.