US Bridges

US 97 over Peshastin Creek

Fair

Chelan County, Washington · 9.5 N Kittitas CO · Structure no. 0006062B0000000

Built
1958
67 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
48 ft
1 main span
Daily traffic
6,057
2023 count
Owner
State
State Highway Agency

About this bridge

US 97 over Peshastin Creek is a concrete culvert carrying US 97 over Peshastin Creek in Chelan County, Washington. It was built in 1958, so it is 67 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 6,057 vehicles a day, roughly 22% of them trucks, projected to reach 7,083 by 2039. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 97
CrossesPeshastin Creek
Location9.5 N Kittitas CO
RouteU.S. Route 97
CountyChelan County
StateWashington
Coordinates47.41699, -120.65939
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,057 (2023)
Projected traffic7,083 by 2039
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 97 over Peshastin Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is US 97 over Peshastin 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 August 2024.

How much traffic does US 97 over Peshastin Creek carry?

About 6,057 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is US 97 over Peshastin Creek?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m).

Who owns US 97 over Peshastin Creek?

It is owned by the State Highway Agency.