US Bridges

S3784;LOCUST Grove over Farr Lateral Canal

Fair

Ada County, Idaho · 3.4 S. 0.9 E. Meridian · Structure no. 000000000026391

Built
1993
32 years old
Condition
Fair
inspected March 2021
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
1,600
2023 count
Owner
County
County Highway Agency

About this bridge

S3784;LOCUST Grove over Farr Lateral Canal is a concrete frame carrying S3784;LOCUST Grove 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 1,600 vehicles a day, roughly 5% of them trucks, projected to reach 2,400 by 2042. The structure is 23 ft (7 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS3784;LOCUST Grove
CrossesFarr Lateral Canal
Location3.4 S. 0.9 E. Meridian
RouteCounty Highway 3784
CountyAda County
StateIdaho
Coordinates43.55322, -116.37464
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 2021
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 alignment7: Better than present minimum 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 length23 ft (7 m)
Longest span23 ft (7 m)
Deck width58 ft (17.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic2,400 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S3784;LOCUST Grove over Farr Lateral Canal built?

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

What condition is S3784;LOCUST Grove 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 2021.

How much traffic does S3784;LOCUST Grove over Farr Lateral Canal carry?

About 1,600 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S3784;LOCUST Grove over Farr Lateral Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 58 ft wide.

Who owns S3784;LOCUST Grove over Farr Lateral Canal?

It is owned by the County Highway Agency.