US Bridges

WAWAWAI/9000 over Unnamed Drainage

Good

Whitman County, Washington · 30.78 MI SW SR 195 · Structure no. 000000QP0000000

Built
1973
52 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
268
2020 count
Owner
County
County Highway Agency

About this bridge

WAWAWAI/9000 over Unnamed Drainage is a prestressed concrete tee beam carrying WAWAWAI/9000 over Unnamed Drainage in Whitman County, Washington. It was built in 1973, so it is 52 years old, older 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 268 vehicles a day, roughly 22% of them trucks, projected to reach 273 by 2039. The structure is 81 ft (24.7 m) long and 35 ft wide. If it were closed, the detour would be 70.2 mi (113 km).

CarriesWAWAWAI/9000
CrossesUnnamed Drainage
Location30.78 MI SW SR 195
RouteCounty Highway 90000
Coordinates46.45167, -117.20558
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47.8 US tons
Inventory rating33.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span78 ft (23.9 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic268 (2020)
Projected traffic273 by 2039
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.2 mi (113 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was WAWAWAI/9000 over Unnamed Drainage built?

It was built in 1973, making it 52 years old in 2025.

What condition is WAWAWAI/9000 over Unnamed Drainage 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 December 2024.

How much traffic does WAWAWAI/9000 over Unnamed Drainage carry?

About 268 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is WAWAWAI/9000 over Unnamed Drainage?

The structure is 81 ft (24.7 m) long with a longest span of 78 ft (23.9 m) and a deck 35 ft wide.

Who owns WAWAWAI/9000 over Unnamed Drainage?

It is owned by the County Highway Agency.