US Bridges

3300 East RD over Low Line Canal

Fair

Twin Falls County, Idaho · 5.1 S. 3.5 E. Twin Falls · Structure no. 000000000025595

Built
1981
44 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
84 ft
2 main spans
Daily traffic
140
2023 count
Owner
Local
Other Local Agency

About this bridge

3300 East RD over Low Line Canal is a prestressed concrete tee beam carrying 3300 East RD over Low Line Canal in Twin Falls County, Idaho. It was built in 1981, so it is 44 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 140 vehicles a day, roughly 10% of them trucks, projected to reach 210 by 2039. The structure is 84 ft (25.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries3300 East RD
CrossesLow Line Canal
Location5.1 S. 3.5 E. Twin Falls
RouteCounty Highway 0
CountyTwin Falls County
StateIdaho
Coordinates42.48089, -114.4015
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating22 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span41 ft (12.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2023)
Projected traffic210 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$756,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 3300 East RD over Low Line Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is 3300 East RD 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 2023.

How much traffic does 3300 East RD over Low Line Canal carry?

About 140 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 3300 East RD over Low Line Canal?

The structure is 84 ft (25.6 m) long with a longest span of 41 ft (12.5 m) and a deck 30 ft wide.

Who owns 3300 East RD over Low Line Canal?

It is owned by the Other Local Agency.