US Bridges

Little Naches Road over Mid. Fork Little Naches

Fair

Yakima County, Washington · Near End of Asphalt · Structure no. 061708000001529

Built
1969
56 years old, rebuilt 1994
Condition
Fair
inspected September 2023
Type
Frame
Concrete Continuous
Length
65 ft
3 main spans
Daily traffic
60
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Little Naches Road over Mid. Fork Little Naches is a concrete continuous frame carrying Little Naches Road over Mid. Fork Little Naches in Yakima County, Washington. It was built in 1969 and reconstructed in 1994, so it is 56 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 60 vehicles a day, projected to reach 90 by 2045. The structure is 65 ft (19.8 m) long and 35 ft wide. If it were closed, the detour would be 81.4 mi (131 km).

Location

Open in Google Maps
CarriesLittle Naches Road
CrossesMid. Fork Little Naches
LocationNear End of Asphalt
RouteFederal Lands Road 19000
CountyYakima County
StateWashington
Coordinates47.08528, -121.29778
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length65 ft (19.8 m)
Longest span40 ft (12.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1995)
Projected traffic90 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed81.4 mi (131 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Naches Road over Mid. Fork Little Naches built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1994.

What condition is Little Naches Road over Mid. Fork Little Naches 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 September 2023.

How much traffic does Little Naches Road over Mid. Fork Little Naches carry?

About 60 vehicles per day (1995 count).

How long is Little Naches Road over Mid. Fork Little Naches?

The structure is 65 ft (19.8 m) long with a longest span of 40 ft (12.2 m) and a deck 35 ft wide.

Who owns Little Naches Road over Mid. Fork Little Naches?

It is owned by the U.S. Forest Service.