US Bridges

ENDICOTT/4000 over Rebel Flat Creek

FairPosted for load

Whitman County, Washington · 27.79 MI E Adams Cnty Lne · Structure no. 080632000000000

Built
1920
105 years old, rebuilt 1961
Condition
Fair
inspected December 2023
Type
Arch - Deck
Concrete
Length
32 ft
1 main span
Daily traffic
672
2021 count
Owner
County
County Highway Agency

About this bridge

ENDICOTT/4000 over Rebel Flat Creek is a concrete arch - deck carrying ENDICOTT/4000 over Rebel Flat Creek in Whitman County, Washington. It was built in 1920 and reconstructed in 1961, 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 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. Its operating status is: posted for load restriction.

It carries about 672 vehicles a day, roughly 5% of them trucks, projected to reach 672 by 2044. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesENDICOTT/4000
CrossesRebel Flat Creek
Location27.79 MI E Adams Cnty Lne
RouteCounty Highway 40000
Coordinates46.89035, -117.44767
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating15.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 15
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic672 (2021)
Projected traffic672 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ENDICOTT/4000 over Rebel Flat Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1961.

What condition is ENDICOTT/4000 over Rebel Flat 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 2023.

How much traffic does ENDICOTT/4000 over Rebel Flat Creek carry?

About 672 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is ENDICOTT/4000 over Rebel Flat Creek?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 31 ft wide.

Who owns ENDICOTT/4000 over Rebel Flat Creek?

It is owned by the County Highway Agency.