US Bridges

No Data Entered over Mid Fork Satsop River

Good

Mason County, Washington · No Data Entered · Structure no. 060901000001036

Built
1967
58 years old
Condition
Good
inspected August 2024
Type
Frame
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over Mid Fork Satsop River is a concrete continuous frame carrying No Data Entered over Mid Fork Satsop River in Mason 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 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 115 ft (35.1 m) long and 17 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesNo Data Entered
CrossesMid Fork Satsop River
LocationNo Data Entered
RouteFederal Lands Road 23660
Coordinates47.39328, -123.45058
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating29 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length115 ft (35.1 m)
Longest span75 ft (22.9 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was No Data Entered over Mid Fork Satsop River built?

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

What condition is No Data Entered over Mid Fork Satsop River 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 August 2024.

How much traffic does No Data Entered over Mid Fork Satsop River carry?

About 50 vehicles per day (latest count).

How long is No Data Entered over Mid Fork Satsop River?

The structure is 115 ft (35.1 m) long with a longest span of 75 ft (22.9 m) and a deck 17 ft wide.

Who owns No Data Entered over Mid Fork Satsop River?

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