US Bridges

US 195 over Spring Flat Creek

Poor

Whitman County, Washington · 12.4 N JCT SR 270 · Structure no. 000000GR0000000

Built
1920
105 years old
Condition
Poor
inspected July 2024
Type
Tee Beam
Concrete
Length
37 ft
1 main span
Daily traffic
9,093
2023 count
Owner
State
State Highway Agency

About this bridge

US 195 over Spring Flat Creek is a concrete tee beam carrying US 195 over Spring Flat Creek in Whitman County, Washington. It was built in 1920, so it is 105 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,093 vehicles a day, roughly 13% of them trucks, projected to reach 10,177 by 2039. The structure is 37 ft (11.3 m) long and 80 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 195
CrossesSpring Flat Creek
Location12.4 N JCT SR 270
RouteU.S. Route 195
Coordinates46.87461, -117.365
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 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 rating36 US tons
Inventory rating22 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width80 ft (24.4 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,093 (2023)
Projected traffic10,177 by 2039
Trucks13%
Lanes on structure4
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$1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 195 over Spring Flat Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is US 195 over Spring Flat Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does US 195 over Spring Flat Creek carry?

About 9,093 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 195 over Spring Flat Creek?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 80 ft wide.

Who owns US 195 over Spring Flat Creek?

It is owned by the State Highway Agency.