US Bridges

1700 South Road over High Line Canal

Fair

Bingham County, Idaho · 0.5 N. 2.0 W.Aberdeen · Structure no. 000000000022630

Built
1962
63 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

1700 South Road over High Line Canal is a prestressed concrete tee beam carrying 1700 South Road over High Line Canal in Bingham 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 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2039. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries1700 South Road
CrossesHigh Line Canal
Location0.5 N. 2.0 W.Aberdeen
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates42.95128, -112.87703
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic300 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$506,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1700 South Road over High Line Canal built?

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

What condition is 1700 South 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 April 2023.

How much traffic does 1700 South Road over High Line Canal carry?

About 200 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 1700 South Road over High Line Canal?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 28 ft wide.

Who owns 1700 South Road over High Line Canal?

It is owned by the County Highway Agency.