US Bridges

ESTES/5300 over Branch Four Mile Creek

Fair

Whitman County, Washington · 00.20 MI E SR 27 · Structure no. 084698000000000

Built
1973
52 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
123
2020 count
Owner
County
County Highway Agency

About this bridge

ESTES/5300 over Branch Four Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying ESTES/5300 over Branch Four Mile Creek in Whitman County, Washington. It was built in 1973, so it is 52 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 123 vehicles a day, roughly 5% of them trucks, projected to reach 136 by 2039. The structure is 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesESTES/5300
CrossesBranch Four Mile Creek
Location00.20 MI E SR 27
RouteCounty Highway 53000
Coordinates46.82745, -117.11088
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
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating13.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic123 (2020)
Projected traffic136 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 ESTES/5300 over Branch Four Mile Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is ESTES/5300 over Branch 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 ESTES/5300 over Branch Four Mile Creek carry?

About 123 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is ESTES/5300 over Branch Four Mile Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.7 m) and a deck 24 ft wide.

Who owns ESTES/5300 over Branch Four Mile Creek?

It is owned by the County Highway Agency.