US Bridges

Kamber Road over Richards Creek

Fair

King County, Washington · SE 26th & 132nd · Structure no. 087398000000000

Built
2005
20 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
9,709
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kamber Road over Richards Creek is a prestressed concrete slab carrying Kamber Road over Richards Creek in King County, Washington. It was built in 2005, so it is 20 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,709 vehicles a day, roughly 9% of them trucks, projected to reach 12,136 by 2042. The structure is 34 ft (10.4 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKamber Road
CrossesRichards Creek
LocationSE 26th & 132nd
RouteCity Street 7380
CountyKing County
StateWashington
Coordinates47.58733, -122.16189
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width72 ft (21.9 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,709 (2022)
Projected traffic12,136 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kamber Road over Richards Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Kamber Road over Richards Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Kamber Road over Richards Creek carry?

About 9,709 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Kamber Road over Richards Creek?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 72 ft wide.

Who owns Kamber Road over Richards Creek?

It is owned by the City or Municipal Highway Agency.