US Bridges

US 2 over Nason CR

Fair

Chelan County, Washington · 16.3 E King CO · Structure no. 000000MF0000000

Built
1953
72 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
5,184
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Nason CR is a concrete continuous tee beam carrying US 2 over Nason CR in Chelan County, Washington. It was built in 1953, so it is 72 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 5,184 vehicles a day, roughly 8% of them trucks, projected to reach 6,133 by 2039. The structure is 170 ft (51.8 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 2
CrossesNason CR
Location16.3 E King CO
RouteU.S. Route 2
Coordinates47.76911, -120.803
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length170 ft (51.8 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,184 (2023)
Projected traffic6,133 by 2039
Trucks8%
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$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Nason CR built?

It was built in 1953, making it 72 years old in 2025.

What condition is US 2 over Nason CR 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 2 over Nason CR carry?

About 5,184 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 2 over Nason CR?

The structure is 170 ft (51.8 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns US 2 over Nason CR?

It is owned by the State Highway Agency.