US Bridges

US 2 over Nason Creek

Poor

Chelan County, Washington · 7.7 E King CO · Structure no. 0013281A0000000

Built
1987
38 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
176 ft
2 main spans
Daily traffic
5,262
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Nason Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 2 over Nason Creek in Chelan County, Washington. It was built in 1987, so it is 38 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,262 vehicles a day, roughly 5% of them trucks, projected to reach 6,086 by 2039. The structure is 176 ft (53.6 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 2
CrossesNason Creek
Location7.7 E King CO
RouteU.S. Route 2
Coordinates47.77356, -120.96792
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckOther
Main spans2
Design loadHS 20 + Mod
Structure length176 ft (53.6 m)
Longest span84 ft (25.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,262 (2023)
Projected traffic6,086 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Nason Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 2 over Nason Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does US 2 over Nason Creek carry?

About 5,262 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 2 over Nason Creek?

The structure is 176 ft (53.6 m) long with a longest span of 84 ft (25.6 m) and a deck 43 ft wide.

Who owns US 2 over Nason Creek?

It is owned by the State Highway Agency.