US Bridges

1000 South Road over Low Line Canal

Fair

Bingham County, Idaho · 1.5 W. 1.0 N Sterling · Structure no. 000000000022575

Built
1972
53 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

1000 South Road over Low Line Canal is a prestressed concrete tee beam carrying 1000 South Road over Low Line Canal in Bingham County, Idaho. It was built in 1972, so it is 53 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 225 by 2039. The structure is 37 ft (11.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries1000 South Road
CrossesLow Line Canal
Location1.5 W. 1.0 N Sterling
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates43.05206, -112.7645
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic225 by 2039
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$410,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1000 South Road over Low Line Canal built?

It was built in 1972, making it 53 years old in 2025.

What condition is 1000 South 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 March 2023.

How much traffic does 1000 South Road over Low Line Canal carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 1000 South Road over Low Line Canal?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns 1000 South Road over Low Line Canal?

It is owned by the County Highway Agency.