US Bridges

WAWAWAI/9000 over Unnamed Drainage

Good

Whitman County, Washington · 20.59 MI SW SR 195 · Structure no. 083863000000000

Built
1972
53 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
117
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 1972, so it is 53 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 117 vehicles a day, roughly 25% of them trucks, projected to reach 117 by 2039. The structure is 71 ft (21.5 m) long and 28 ft wide. If it were closed, the detour would be 70.2 mi (113 km).

CarriesWAWAWAI/9000
CrossesUnnamed Drainage
Location20.59 MI SW SR 195
RouteCounty Highway 90000
Coordinates46.57563, -117.29
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 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 rating35.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length71 ft (21.5 m)
Longest span69 ft (21 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2020)
Projected traffic117 by 2039
Trucks25%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was WAWAWAI/9000 over Unnamed Drainage built?

It was built in 1972, making it 53 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 117 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is WAWAWAI/9000 over Unnamed Drainage?

The structure is 71 ft (21.5 m) long with a longest span of 69 ft (21 m) and a deck 28 ft wide.

Who owns WAWAWAI/9000 over Unnamed Drainage?

It is owned by the County Highway Agency.