US Bridges

Company Creek Road over Stehekin River

Good

Chelan County, Washington · 1.2 Miles from Maintenanc · Structure no. 9470011P0000000

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Truss - Thru
Steel
Length
167 ft
1 main span
Daily traffic
100
2019 count
Owner
Federal
National Park Service

About this bridge

Company Creek Road over Stehekin River is a steel truss - thru carrying Company Creek Road over Stehekin River in Chelan County, Washington. It was built in 2001, so it is 24 years old, younger 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 200 by 2039. The structure is 167 ft (51 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCompany Creek Road
CrossesStehekin River
Location1.2 Miles from Maintenanc
RouteFederal Lands Road 100
Coordinates48.34917, -120.71389
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating43 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadHS 20
Structure length167 ft (51 m)
Longest span163 ft (49.6 m)
Deck width20 ft (6.2 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck11 ft (3.4 m)

Traffic and service

Average daily traffic100 (2019)
Projected traffic200 by 2039
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Company Creek Road over Stehekin River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Company Creek Road over Stehekin 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 October 2024.

How much traffic does Company Creek Road over Stehekin River carry?

About 100 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Company Creek Road over Stehekin River?

The structure is 167 ft (51 m) long with a longest span of 163 ft (49.6 m) and a deck 20 ft wide.

Who owns Company Creek Road over Stehekin River?

It is owned by the National Park Service.