US Bridges

SR 260 over Dry Wash

Poor

Franklin County, Washington · 0.1 E JCT SR 21 · Structure no. 0008140A0000000

Built
1967
58 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
664
2023 count
Owner
State
State Highway Agency

About this bridge

SR 260 over Dry Wash is a concrete continuous slab carrying SR 260 over Dry Wash in Franklin County, Washington. It was built in 1967, so it is 58 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.

It carries about 664 vehicles a day, roughly 30% of them trucks, projected to reach 797 by 2039. The structure is 82 ft (25 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 260
CrossesDry Wash
Location0.1 E JCT SR 21
RouteState Highway 260
Coordinates46.64389, -118.55547
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length82 ft (25 m)
Longest span31 ft (9.3 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic664 (2023)
Projected traffic797 by 2039
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 260 over Dry Wash built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR 260 over Dry Wash 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 July 2024.

How much traffic does SR 260 over Dry Wash carry?

About 664 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is SR 260 over Dry Wash?

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.3 m) and a deck 37 ft wide.

Who owns SR 260 over Dry Wash?

It is owned by the State Highway Agency.