US Bridges

Stp 3794;EAGLE RD over Farr Lateral Canal

Fair

Ada County, Idaho · 3.4 N. 3.3 E. Kuna · Structure no. 000000000025926

Built
1993
32 years old
Condition
Fair
inspected March 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
2,000
2023 count
Owner
County
County Highway Agency

About this bridge

Stp 3794;EAGLE RD over Farr Lateral Canal is a concrete frame carrying Stp 3794;EAGLE RD over Farr Lateral Canal in Ada County, Idaho. It was built in 1993, so it is 32 years old, younger than the Idaho average of 45.3 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 2,000 vehicles a day, projected to reach 3,000 by 2042. The structure is 28 ft (8.5 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesStp 3794;EAGLE RD
CrossesFarr Lateral Canal
Location3.4 N. 3.3 E. Kuna
RouteCounty Highway 3794
CountyAda County
StateIdaho
Coordinates43.54067, -116.35436
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width61 ft (18.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2023)
Projected traffic3,000 by 2042
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stp 3794;EAGLE RD over Farr Lateral Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is Stp 3794;EAGLE RD over Farr Lateral Canal 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 March 2023.

How much traffic does Stp 3794;EAGLE RD over Farr Lateral Canal carry?

About 2,000 vehicles per day (2023 count).

How long is Stp 3794;EAGLE RD over Farr Lateral Canal?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 61 ft wide.

Who owns Stp 3794;EAGLE RD over Farr Lateral Canal?

It is owned by the County Highway Agency.