US Bridges

4300 East Road over Twin Falls Main Canal

Fair

Twin Falls County, Idaho · 2.9 N. 2.4 W. Murtaugh · Structure no. 000000000025341

Built
1997
28 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

4300 East Road over Twin Falls Main Canal is a concrete continuous slab carrying 4300 East Road over Twin Falls Main Canal in Twin Falls County, Idaho. It was built in 1997, so it is 28 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 30 vehicles a day, projected to reach 45 by 2042. The structure is 125 ft (38.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries4300 East Road
CrossesTwin Falls Main Canal
Location2.9 N. 2.4 W. Murtaugh
RouteCounty Highway 0
CountyTwin Falls County
StateIdaho
Coordinates42.53556, -114.21111
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span47 ft (14.2 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 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

OwnerOther Local Agency
Maintained byOther Local 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 4300 East Road over Twin Falls Main Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is 4300 East Road over Twin Falls Main 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 4300 East Road over Twin Falls Main Canal carry?

About 30 vehicles per day (2023 count).

How long is 4300 East Road over Twin Falls Main Canal?

The structure is 125 ft (38.1 m) long with a longest span of 47 ft (14.2 m) and a deck 25 ft wide.

Who owns 4300 East Road over Twin Falls Main Canal?

It is owned by the Other Local Agency.