US Bridges

FARMINGTON/1000 over Hangman Creek

Fair

Whitman County, Washington · 0.05 MI S Golf Course · Structure no. 083438000000000

Built
1916
109 years old
Condition
Fair
inspected November 2023
Type
Arch - Deck
Concrete
Length
70 ft
1 main span
Daily traffic
406
2021 count
Owner
County
County Highway Agency

About this bridge

FARMINGTON/1000 over Hangman Creek is a concrete arch - deck carrying FARMINGTON/1000 over Hangman Creek in Whitman County, Washington. It was built in 1916, so it is 109 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 406 vehicles a day, roughly 25% of them trucks, projected to reach 406 by 2044. The structure is 70 ft (21.3 m) long and 30 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesFARMINGTON/1000
CrossesHangman Creek
Location0.05 MI S Golf Course
RouteCounty Highway 10000
CountyWhitman County
StateWashington
Coordinates47.21645, -117.06638
Functional classRural Major 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
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 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 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 rating31.4 US tons
Inventory rating23.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length70 ft (21.3 m)
Longest span69 ft (21 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic406 (2021)
Projected traffic406 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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 FARMINGTON/1000 over Hangman Creek built?

It was built in 1916, making it 109 years old in 2025.

What condition is FARMINGTON/1000 over Hangman 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 Hangman Creek carry?

About 406 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is FARMINGTON/1000 over Hangman Creek?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 30 ft wide.

Who owns FARMINGTON/1000 over Hangman Creek?

It is owned by the County Highway Agency.