US Bridges

Road over Swauk Creek

Fair

Kittitas County, Washington · No Data Entered · Structure no. 061703000001412

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
55 ft
3 main spans
Daily traffic
30
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Swauk Creek is a wood or timber stringer/multi-beam or girder carrying Road over Swauk Creek in Kittitas County, Washington. It was built in 1955, so it is 70 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 30 vehicles a day, projected to reach 45 by 2045. The structure is 55 ft (16.8 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesRoad
CrossesSwauk Creek
LocationNo Data Entered
RouteFederal Lands Road 97001
CountyKittitas County
StateWashington
Coordinates47.29019, -120.69927
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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span35 ft (10.7 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1995)
Projected traffic45 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 Road over Swauk Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Road over Swauk 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 May 2024.

How much traffic does Road over Swauk Creek carry?

About 30 vehicles per day (1995 count).

How long is Road over Swauk Creek?

The structure is 55 ft (16.8 m) long with a longest span of 35 ft (10.7 m) and a deck 15 ft wide.

Who owns Road over Swauk Creek?

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