US Bridges

Liberty Road over Swauk Creek

Good

Kittitas County, Washington · 0.03 E HWY 97 · Structure no. 089534000000000

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Slab
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
291
2022 count
Owner
County
County Highway Agency

About this bridge

Liberty Road over Swauk Creek is a prestressed concrete slab carrying Liberty Road over Swauk Creek in Kittitas County, Washington. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 291 vehicles a day, roughly 20% of them trucks, projected to reach 771 by 2042. The structure is 68 ft (20.7 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

No coordinates are recorded for this structure.

CarriesLiberty Road
CrossesSwauk Creek
Location0.03 E HWY 97
RouteCounty Highway 38350
CountyKittitas County
StateWashington
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length68 ft (20.7 m)
Longest span66 ft (20.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic291 (2022)
Projected traffic771 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Liberty Road over Swauk Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is Liberty Road over Swauk Creek 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 November 2024.

How much traffic does Liberty Road over Swauk Creek carry?

About 291 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Liberty Road over Swauk Creek?

The structure is 68 ft (20.7 m) long with a longest span of 66 ft (20.1 m) and a deck 35 ft wide.

Who owns Liberty Road over Swauk Creek?

It is owned by the County Highway Agency.