US Bridges

S3784;LOCUST Grove over Rawson Canal

Fair

Ada County, Idaho · 5.3 S. 0.8 E. Meridian · Structure no. 000000000026050

Built
1973
52 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
1,600
2023 count
Owner
County
County Highway Agency

About this bridge

S3784;LOCUST Grove over Rawson Canal is a prestressed concrete tee beam carrying S3784;LOCUST Grove over Rawson Canal in Ada County, Idaho. It was built in 1973, so it is 52 years old, older 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 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS3784;LOCUST Grove
CrossesRawson Canal
Location5.3 S. 0.8 E. Meridian
RouteCounty Highway 3784
CountyAda County
StateIdaho
Coordinates43.53417, -116.37425
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.9 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 Rawson Canal built?

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

What condition is S3784;LOCUST Grove over Rawson 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 October 2023.

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

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

How long is S3784;LOCUST Grove over Rawson Canal?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns S3784;LOCUST Grove over Rawson Canal?

It is owned by the County Highway Agency.