US Bridges

Dole Valley Road over Rock Creek

Fair

Clark County, Washington · 3.79 S JCT CO RD12 · Structure no. 080328000000000

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
81 ft
1 main span
Daily traffic
130
2016 count
Owner
County
County Highway Agency

About this bridge

Dole Valley Road over Rock Creek is a wood or timber stringer/multi-beam or girder carrying Dole Valley Road over Rock Creek in Clark County, Washington. It was built in 1975, so it is 50 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 5 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 130 vehicles a day, roughly 11% of them trucks, projected to reach 461 by 2038. The structure is 81 ft (24.8 m) long and 16 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesDole Valley Road
CrossesRock Creek
Location3.79 S JCT CO RD12
RouteCounty Highway 54910
Coordinates45.77552, -122.33802
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1 (+1 approach)
Design loadHS 15
Structure length81 ft (24.8 m)
Longest span60 ft (18.3 m)
Deck width16 ft (5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2016)
Projected traffic461 by 2038
Trucks11%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedReplacement because of relocation of road
Estimated improvement cost$2.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dole Valley Road over Rock Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Dole Valley Road over Rock 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 November 2023.

How much traffic does Dole Valley Road over Rock Creek carry?

About 130 vehicles per day (2016 count), of which roughly 11% are trucks.

How long is Dole Valley Road over Rock Creek?

The structure is 81 ft (24.8 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.

Who owns Dole Valley Road over Rock Creek?

It is owned by the County Highway Agency.