US Bridges

Stc 1863;W 1400 S over High Line Canal

Good

Bingham County, Idaho · 3.5 N. 1.3 W. Aberdeen · Structure no. 000000000019330

Built
1968
57 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 1863;W 1400 S over High Line Canal is a prestressed concrete tee beam carrying Stc 1863;W 1400 S over High Line Canal in Bingham County, Idaho. It was built in 1968, so it is 57 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 30% of them trucks, projected to reach 450 by 2042. The structure is 43 ft (13.1 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStc 1863;W 1400 S
CrossesHigh Line Canal
Location3.5 N. 1.3 W. Aberdeen
RouteCounty Highway 1863
StateIdaho
Coordinates42.99504, -112.85982
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable 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 length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic450 by 2042
Trucks30%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 1863;W 1400 S over High Line Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Stc 1863;W 1400 S over High Line Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Stc 1863;W 1400 S over High Line Canal carry?

About 300 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Stc 1863;W 1400 S over High Line Canal?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 28 ft wide.

Who owns Stc 1863;W 1400 S over High Line Canal?

It is owned by the County Highway Agency.