US Bridges

SR 202 over Patterson Crk East Trib

Good

King County, Washington · 12.0 E JCT SR 520 · Structure no. 0019269C0000000

Built
2020
5 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
7,187
2023 count
Owner
State
State Highway Agency

About this bridge

SR 202 over Patterson Crk East Trib is a concrete culvert carrying SR 202 over Patterson Crk East Trib in King County, Washington. It was built in 2020, so it is 5 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 7,187 vehicles a day, roughly 9% of them trucks, projected to reach 19,062 by 2038. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSR 202
CrossesPatterson Crk East Trib
Location12.0 E JCT SR 520
RouteState Highway 202
CountyKing County
StateWashington
Coordinates47.5776, -121.92561
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 rating80.4 US tons
Inventory rating61.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,187 (2023)
Projected traffic19,062 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$410,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 202 over Patterson Crk East Trib built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR 202 over Patterson Crk East Trib 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 Patterson Crk East Trib carry?

About 7,187 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 202 over Patterson Crk East Trib?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns SR 202 over Patterson Crk East Trib?

It is owned by the State Highway Agency.