US Bridges

FARMINGTON/1000 over Pine Creek

Fair

Whitman County, Washington · 0.03 MI W Frmngtn Cty Lmt · Structure no. 080509000000000

Built
1915
110 years old
Condition
Fair
inspected November 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
364
2021 count
Owner
County
County Highway Agency

About this bridge

FARMINGTON/1000 over Pine Creek is a concrete arch - deck carrying FARMINGTON/1000 over Pine Creek in Whitman County, Washington. It was built in 1915, so it is 110 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 364 vehicles a day, roughly 25% of them trucks, projected to reach 364 by 2044. The structure is 40 ft (12.2 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFARMINGTON/1000
CrossesPine Creek
Location0.03 MI W Frmngtn Cty Lmt
RouteCounty Highway 10000
CountyWhitman County
StateWashington
Coordinates47.08962, -117.05332
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic364 (2021)
Projected traffic364 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FARMINGTON/1000 over Pine Creek built?

It was built in 1915, making it 110 years old in 2025.

What condition is FARMINGTON/1000 over Pine 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 November 2023.

How much traffic does FARMINGTON/1000 over Pine Creek carry?

About 364 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is FARMINGTON/1000 over Pine Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns FARMINGTON/1000 over Pine Creek?

It is owned by the County Highway Agency.