US Bridges

Rose Gulch Road over Touchet River

PoorPosted for load

Columbia County, Washington · 0.2 N JCT SR 12 · Structure no. 082152000000000

Built
1963
62 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
2 main spans
Daily traffic
150
2019 count
Owner
County
County Highway Agency

About this bridge

Rose Gulch Road over Touchet River is a steel stringer/multi-beam or girder carrying Rose Gulch Road over Touchet River in Columbia County, Washington. It was built in 1963, so it is 62 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 40% of them trucks, projected to reach 225 by 2041. The structure is 160 ft (48.8 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesRose Gulch Road
CrossesTouchet River
Location0.2 N JCT SR 12
RouteCounty Highway 24110
CountyColumbia County
StateWashington
Coordinates46.29011, -118.04497
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.5 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span79 ft (24.1 m)
Deck width21 ft (6.3 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2019)
Projected traffic225 by 2041
Trucks40%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rose Gulch Road over Touchet River built?

It was built in 1963, making it 62 years old in 2025.

What condition is Rose Gulch Road over Touchet River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Rose Gulch Road over Touchet River carry?

About 150 vehicles per day (2019 count), of which roughly 40% are trucks.

How long is Rose Gulch Road over Touchet River?

The structure is 160 ft (48.8 m) long with a longest span of 79 ft (24.1 m) and a deck 21 ft wide.

Who owns Rose Gulch Road over Touchet River?

It is owned by the County Highway Agency.