US Bridges

ALBION-PARVIN/5260 over Four Mile Creek

Fair

Whitman County, Washington · 1.63 MI SE Parvin · Structure no. 084501000000000

Built
1975
50 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
55
2020 count
Owner
County
County Highway Agency

About this bridge

ALBION-PARVIN/5260 over Four Mile Creek is a prestressed concrete tee beam carrying ALBION-PARVIN/5260 over Four Mile Creek in Whitman County, Washington. It was built in 1975, so it is 50 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 6 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 55 vehicles a day, roughly 25% of them trucks, projected to reach 56 by 2039. The structure is 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesALBION-PARVIN/5260
CrossesFour Mile Creek
Location1.63 MI SE Parvin
RouteCounty Highway 52600
Coordinates46.83, -117.27587
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2020)
Projected traffic56 by 2039
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ALBION-PARVIN/5260 over Four Mile Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is ALBION-PARVIN/5260 over Four Mile Creek 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 December 2024.

How much traffic does ALBION-PARVIN/5260 over Four Mile Creek carry?

About 55 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is ALBION-PARVIN/5260 over Four Mile Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 24 ft wide.

Who owns ALBION-PARVIN/5260 over Four Mile Creek?

It is owned by the County Highway Agency.