US Bridges

Farm Field Access over Rocky Coulee Drain Waste

FairPosted for load

Grant County, Washington · Nr Moses Lake Wa · Structure no. 11ELC0020

Built
1948
77 years old
Condition
Fair
inspected November 2023
Type
Truss - Thru
Steel
Length
41 ft
1 main span
Daily traffic
5
2023 count
Owner
Federal
Bureau of Reclamation

About this bridge

Farm Field Access over Rocky Coulee Drain Waste is a steel truss - thru carrying Farm Field Access over Rocky Coulee Drain Waste in Grant County, Washington. It was built in 1948, so it is 77 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 5 vehicles a day, projected to reach 5 by 2043. The structure is 41 ft (12.4 m) long and 12 ft wide.

Location

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CarriesFarm Field Access
CrossesRocky Coulee Drain Waste
LocationNr Moses Lake Wa
CountyGrant County
StateWashington
Coordinates47.05039, -119.22646
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating20.8 US tons
Inventory rating12.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length41 ft (12.4 m)
Longest span40 ft (12.2 m)
Deck width12 ft (3.7 m)
Roadway width10 ft (3.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2023)
Projected traffic5 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther Local Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Farm Field Access over Rocky Coulee Drain Waste built?

It was built in 1948, making it 77 years old in 2025.

What condition is Farm Field Access over Rocky Coulee Drain Waste 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 Farm Field Access over Rocky Coulee Drain Waste carry?

About 5 vehicles per day (2023 count).

How long is Farm Field Access over Rocky Coulee Drain Waste?

The structure is 41 ft (12.4 m) long with a longest span of 40 ft (12.2 m) and a deck 12 ft wide.

Who owns Farm Field Access over Rocky Coulee Drain Waste?

It is owned by the Bureau of Reclamation and maintained by the Other Local Agency.