US Bridges

N 3700 E Road over Perrine Coulee Canal

Fair

Twin Falls County, Idaho · 1.3 W. 1.3 S. Hansen · Structure no. 000000000025528

Built
1962
63 years old
Condition
Fair
inspected February 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
70
2023 count
Owner
Local
Other Local Agency

About this bridge

N 3700 E Road over Perrine Coulee Canal is a steel stringer/multi-beam or girder carrying N 3700 E Road over Perrine Coulee Canal in Twin Falls County, Idaho. It was built in 1962, so it is 63 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 70 vehicles a day, projected to reach 105 by 2040. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN 3700 E Road
CrossesPerrine Coulee Canal
Location1.3 W. 1.3 S. Hansen
RouteCounty Highway 0
CountyTwin Falls County
StateIdaho
Coordinates42.51036, -114.32547
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 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating84 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2040
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 N 3700 E Road over Perrine Coulee Canal built?

It was built in 1962, making it 63 years old in 2025.

What condition is N 3700 E Road over Perrine Coulee 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 2022.

How much traffic does N 3700 E Road over Perrine Coulee Canal carry?

About 70 vehicles per day (2023 count).

How long is N 3700 E Road over Perrine Coulee Canal?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns N 3700 E Road over Perrine Coulee Canal?

It is owned by the Other Local Agency.