US Bridges

3500 East Road over Low Line Canal

Fair

Twin Falls County, Idaho · 3.5 S. Kimberly · Structure no. 000000000025505

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Channel Beam
Prestressed Concrete
Length
78 ft
2 main spans
Daily traffic
1,300
2023 count
Owner
Local
Other Local Agency

About this bridge

3500 East Road over Low Line Canal is a prestressed concrete channel beam carrying 3500 East Road over Low Line Canal in Twin Falls County, Idaho. It was built in 1967, so it is 58 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 1,300 vehicles a day, roughly 2% of them trucks, projected to reach 1,950 by 2042. The structure is 78 ft (23.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries3500 East Road
CrossesLow Line Canal
Location3.5 S. Kimberly
RouteCounty Highway 0
StateIdaho
Coordinates42.48222, -114.36417
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 20
Structure length78 ft (23.8 m)
Longest span39 ft (11.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,950 by 2042
Trucks2%
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

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$757,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 3500 East Road over Low Line Canal built?

It was built in 1967, making it 58 years old in 2025.

What condition is 3500 East Road over Low Line 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 February 2024.

How much traffic does 3500 East Road over Low Line Canal carry?

About 1,300 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is 3500 East Road over Low Line Canal?

The structure is 78 ft (23.8 m) long with a longest span of 39 ft (11.9 m) and a deck 28 ft wide.

Who owns 3500 East Road over Low Line Canal?

It is owned by the Other Local Agency.