US Bridges

STC6859;E Ririe Hy over Eagle Rock Canal

Fair

Bonneville County, Idaho · At Ririe · Structure no. 000000000021146

Built
2015
10 years old
Condition
Fair
inspected November 2021
Type
Frame
Concrete Continuous
Length
50 ft
2 main spans
Daily traffic
630
2023 count
Owner
County
County Highway Agency

About this bridge

STC6859;E Ririe Hy over Eagle Rock Canal is a concrete continuous frame carrying STC6859;E Ririe Hy over Eagle Rock Canal in Bonneville County, Idaho. It was built in 2015, so it is 10 years old, younger 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 630 vehicles a day, roughly 13% of them trucks, projected to reach 945 by 2042. The structure is 50 ft (15.2 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSTC6859;E Ririe Hy
CrossesEagle Rock Canal
LocationAt Ririe
RouteCounty Highway 6859
CountyBonneville County
StateIdaho
Coordinates43.62683, -111.77431
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating51.5 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span24 ft (7.3 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2023)
Projected traffic945 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 STC6859;E Ririe Hy over Eagle Rock Canal built?

It was built in 2015, making it 10 years old in 2025.

What condition is STC6859;E Ririe Hy over Eagle Rock 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 November 2021.

How much traffic does STC6859;E Ririe Hy over Eagle Rock Canal carry?

About 630 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is STC6859;E Ririe Hy over Eagle Rock Canal?

The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 52 ft wide.

Who owns STC6859;E Ririe Hy over Eagle Rock Canal?

It is owned by the County Highway Agency.