US Bridges

SR 202 over Sammamish Crk

Good

King County, Washington · 4.1 E JCT SR 522 · Structure no. 0023422A0000000

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
17,808
2023 count
Owner
State
State Highway Agency

About this bridge

SR 202 over Sammamish Crk is a concrete culvert carrying SR 202 over Sammamish Crk in King County, Washington. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,808 vehicles a day, roughly 5% of them trucks, projected to reach 26,774 by 2043. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 202
CrossesSammamish Crk
Location4.1 E JCT SR 522
RouteState Highway 202
CountyKing County
StateWashington
Coordinates47.71239, -122.13175
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length27 ft (8.1 m)
Longest span27 ft (8.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,808 (2023)
Projected traffic26,774 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 202 over Sammamish Crk built?

It was built in 2024, making it 1 years old in 2025.

What condition is SR 202 over Sammamish Crk 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 November 2024.

How much traffic does SR 202 over Sammamish Crk carry?

About 17,808 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 202 over Sammamish Crk?

The structure is 27 ft (8.1 m) long with a longest span of 27 ft (8.1 m).

Who owns SR 202 over Sammamish Crk?

It is owned by the State Highway Agency.