US Bridges

Raven Roost over Mid. Fork Little Naches

Good

Yakima County, Washington · Near Crow Creek Camp · Structure no. 061708000001530

Built
1964
61 years old, rebuilt 1994
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
2 main spans
Daily traffic
50
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Raven Roost over Mid. Fork Little Naches is a prestressed concrete stringer/multi-beam or girder carrying Raven Roost over Mid. Fork Little Naches in Yakima County, Washington. It was built in 1964 and reconstructed in 1994, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 180 ft (54.9 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRaven Roost
CrossesMid. Fork Little Naches
LocationNear Crow Creek Camp
RouteFederal Lands Road 19020
Coordinates47.01389, -121.13361
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadOther
Structure length180 ft (54.9 m)
Longest span99 ft (30.1 m)
Deck width18 ft (5.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1995)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Raven Roost over Mid. Fork Little Naches built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1994.

What condition is Raven Roost over Mid. Fork Little Naches in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

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

About 50 vehicles per day (1995 count).

How long is Raven Roost over Mid. Fork Little Naches?

The structure is 180 ft (54.9 m) long with a longest span of 99 ft (30.1 m) and a deck 18 ft wide.

Who owns Raven Roost over Mid. Fork Little Naches?

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