US Bridges

STC1837;W River RD over Peoples Canal

Fair

Bingham County, Idaho · 5.6 N. 2.3 E. Blackfoot · Structure no. 000000000022875

Built
1954
71 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
62 ft
2 main spans
Daily traffic
1,300
2023 count
Owner
County
County Highway Agency

About this bridge

STC1837;W River RD over Peoples Canal is a concrete tee beam carrying STC1837;W River RD over Peoples Canal in Bingham County, Idaho. It was built in 1954, so it is 71 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 1,300 vehicles a day, roughly 11% of them trucks, projected to reach 1,950 by 2042. The structure is 62 ft (18.9 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSTC1837;W River RD
CrossesPeoples Canal
Location5.6 N. 2.3 E. Blackfoot
RouteCounty Highway 1837
CountyBingham County
StateIdaho
Coordinates43.27, -112.2994
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length62 ft (18.9 m)
Longest span30 ft (9.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,950 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$894,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC1837;W River RD over Peoples Canal built?

It was built in 1954, making it 71 years old in 2025.

What condition is STC1837;W River RD over Peoples 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 2024.

How much traffic does STC1837;W River RD over Peoples Canal carry?

About 1,300 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is STC1837;W River RD over Peoples Canal?

The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 27 ft wide.

Who owns STC1837;W River RD over Peoples Canal?

It is owned by the County Highway Agency.