US Bridges

Dosewallips Road over Rocky Brook Creek

Fair

Jefferson County, Washington · 3.0NW JCT SR101 · Structure no. 083814000000000

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
98
2021 count
Owner
County
County Highway Agency

About this bridge

Dosewallips Road over Rocky Brook Creek is a prestressed concrete tee beam carrying Dosewallips Road over Rocky Brook Creek in Jefferson County, Washington. It was built in 1964, so it is 61 years old, older 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 98 vehicles a day, roughly 5% of them trucks, projected to reach 226 by 2042. The structure is 47 ft (14.2 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesDosewallips Road
CrossesRocky Brook Creek
Location3.0NW JCT SR101
RouteCounty Highway 25000
CountyJefferson County
StateWashington
Coordinates47.71861, -122.94333
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating11.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span45 ft (13.7 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2021)
Projected traffic226 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dosewallips Road over Rocky Brook Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Dosewallips Road over Rocky Brook 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 April 2023.

How much traffic does Dosewallips Road over Rocky Brook Creek carry?

About 98 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Dosewallips Road over Rocky Brook Creek?

The structure is 47 ft (14.2 m) long with a longest span of 45 ft (13.7 m) and a deck 26 ft wide.

Who owns Dosewallips Road over Rocky Brook Creek?

It is owned by the County Highway Agency.