US Bridges

Grandview Road over High Line Canal

Fair

Bingham County, Idaho · 4.3 W. 1.0 N Sterling · Structure no. 000000000022440

Built
1971
54 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Grandview Road over High Line Canal is a prestressed concrete tee beam carrying Grandview Road over High Line Canal in Bingham County, Idaho. It was built in 1971, so it is 54 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 5 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 44 ft (13.4 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesGrandview Road
CrossesHigh Line Canal
Location4.3 W. 1.0 N Sterling
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates43.05303, -112.82167
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 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 closed8.1 mi (13 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$444,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Grandview Road over High Line Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is Grandview Road over High 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 2024.

How much traffic does Grandview Road over High Line Canal carry?

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

How long is Grandview Road over High Line Canal?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 30 ft wide.

Who owns Grandview Road over High Line Canal?

It is owned by the County Highway Agency.