US Bridges

3425 North Road over Dry Creek

Fair

Twin Falls County, Idaho · 0.9 E. Murtaugh · Structure no. 000000000025375

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
100
2023 count
Owner
Local
Other Local Agency

About this bridge

3425 North Road over Dry Creek is a prestressed concrete tee beam carrying 3425 North Road over Dry Creek in Twin Falls County, Idaho. It was built in 1965, so it is 60 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2039. The structure is 78 ft (23.8 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries3425 North Road
CrossesDry Creek
Location0.9 E. Murtaugh
RouteCounty Highway 0
StateIdaho
Coordinates42.49233, -114.14381
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length78 ft (23.8 m)
Longest span77 ft (23.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic150 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$554,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 3425 North Road over Dry Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is 3425 North Road over Dry Creek 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 3425 North Road over Dry Creek carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 3425 North Road over Dry Creek?

The structure is 78 ft (23.8 m) long with a longest span of 77 ft (23.5 m) and a deck 28 ft wide.

Who owns 3425 North Road over Dry Creek?

It is owned by the Other Local Agency.