US Bridges

White River Road over Napeequa River

Good

Chelan County, Washington · 6.4N JCT Little Wen. RD · Structure no. 087197000000000

Built
2001
24 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
135 ft
1 main span
Daily traffic
111
2021 count
Owner
County
County Highway Agency

About this bridge

White River Road over Napeequa River is a prestressed concrete tee beam carrying White River Road over Napeequa River in Chelan County, Washington. It was built in 2001, so it is 24 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 111 vehicles a day, roughly 2% of them trucks, projected to reach 150 by 2041. The structure is 135 ft (41.2 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWhite River Road
CrossesNapeequa River
Location6.4N JCT Little Wen. RD
RouteCounty Highway 39890
Coordinates47.92188, -120.89519
Functional classRural Local

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length135 ft (41.2 m)
Longest span132 ft (40.3 m)
Deck width24 ft (7.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2021)
Projected traffic150 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was White River Road over Napeequa River built?

It was built in 2001, making it 24 years old in 2025.

What condition is White River Road over Napeequa River 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 September 2024.

How much traffic does White River Road over Napeequa River carry?

About 111 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is White River Road over Napeequa River?

The structure is 135 ft (41.2 m) long with a longest span of 132 ft (40.3 m) and a deck 24 ft wide.

Who owns White River Road over Napeequa River?

It is owned by the County Highway Agency.