US Bridges

SR 202 over Sammamish R

Good

King County, Washington · 0.4 E JCT SR 522 · Structure no. 002005210000000

Built
2019
6 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
1 main span
Daily traffic
9,203
2023 count
Owner
State
State Highway Agency

About this bridge

SR 202 over Sammamish R is a prestressed concrete stringer/multi-beam or girder carrying SR 202 over Sammamish R in King County, Washington. It was built in 2019, so it is 6 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 9,203 vehicles a day, roughly 4% of them trucks, projected to reach 13,185 by 2039. The structure is 140 ft (42.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 202
CrossesSammamish R
Location0.4 E JCT SR 522
RouteState Highway 202
CountyKing County
StateWashington
Coordinates47.75393, -122.16794
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length140 ft (42.7 m)
Longest span135 ft (41.1 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,203 (2023)
Projected traffic13,185 by 2039
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 202 over Sammamish R built?

It was built in 2019, making it 6 years old in 2025.

What condition is SR 202 over Sammamish R 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 July 2023.

How much traffic does SR 202 over Sammamish R carry?

About 9,203 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 202 over Sammamish R?

The structure is 140 ft (42.7 m) long with a longest span of 135 ft (41.1 m) and a deck 40 ft wide.

Who owns SR 202 over Sammamish R?

It is owned by the State Highway Agency.