US Bridges

BIA Route 1102 over Wa-Atch River

Good

Clallam County, Washington · 3 KM SW of Neah Bay · Structure no. 00000000000P082

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
300
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

BIA Route 1102 over Wa-Atch River is a prestressed concrete stringer/multi-beam or girder carrying BIA Route 1102 over Wa-Atch River in Clallam County, Washington. It was built in 2010, so it is 15 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 5% of them trucks, projected to reach 334 by 2040. The structure is 189 ft (57.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBIA Route 1102
CrossesWa-Atch River
Location3 KM SW of Neah Bay
RouteFederal Lands Road 1102
Coordinates48.35044, -124.64556
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating58.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length189 ft (57.6 m)
Longest span60 ft (18.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2021)
Projected traffic334 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was BIA Route 1102 over Wa-Atch River built?

It was built in 2010, making it 15 years old in 2025.

What condition is BIA Route 1102 over Wa-Atch 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 August 2024.

How much traffic does BIA Route 1102 over Wa-Atch River carry?

About 300 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is BIA Route 1102 over Wa-Atch River?

The structure is 189 ft (57.6 m) long with a longest span of 60 ft (18.4 m) and a deck 43 ft wide.

Who owns BIA Route 1102 over Wa-Atch River?

It is owned by the Bureau of Indian Affairs.