US Bridges

Labyrinth Mtn. Rd. over Rainy Creek

Fair

Chelan County, Washington · No Data Entered · Structure no. 061706000001443

Built
1956
69 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
48 ft
3 main spans
Daily traffic
50
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Labyrinth Mtn. Rd. over Rainy Creek is a wood or timber stringer/multi-beam or girder carrying Labyrinth Mtn. Rd. over Rainy Creek in Chelan County, Washington. It was built in 1956, so it is 69 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 48 ft (14.5 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesLabyrinth Mtn. Rd.
CrossesRainy Creek
LocationNo Data Entered
RouteFederal Lands Road 67010
CountyChelan County
StateWashington
Coordinates47.85109, -120.9654
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 rating37 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length48 ft (14.5 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 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 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 Labyrinth Mtn. Rd. over Rainy Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Labyrinth Mtn. Rd. over Rainy Creek 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 June 2024.

How much traffic does Labyrinth Mtn. Rd. over Rainy Creek carry?

About 50 vehicles per day (1995 count).

How long is Labyrinth Mtn. Rd. over Rainy Creek?

The structure is 48 ft (14.5 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Labyrinth Mtn. Rd. over Rainy Creek?

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