US Bridges

US 195 over Palouse River

Fair

Whitman County, Washington · 0.7 N JCT SR 272 · Structure no. 0001542A0000000

Built
1931
94 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
240 ft
4 main spans
Daily traffic
6,729
2023 count
Owner
State
State Highway Agency

About this bridge

US 195 over Palouse River is a concrete tee beam carrying US 195 over Palouse River in Whitman County, Washington. It was built in 1931, so it is 94 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 5 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 6,729 vehicles a day, roughly 14% of them trucks, projected to reach 7,753 by 2039. The structure is 240 ft (73.2 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesUS 195
CrossesPalouse River
Location0.7 N JCT SR 272
RouteU.S. Route 195
CountyWhitman County
StateWashington
Coordinates46.88995, -117.36414
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length240 ft (73.2 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,729 (2023)
Projected traffic7,753 by 2039
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 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$4.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 195 over Palouse River built?

It was built in 1931, making it 94 years old in 2025.

What condition is US 195 over Palouse River 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 July 2024.

How much traffic does US 195 over Palouse River carry?

About 6,729 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 195 over Palouse River?

The structure is 240 ft (73.2 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns US 195 over Palouse River?

It is owned by the State Highway Agency.