US Bridges

175th E./Poplar RD over Anderson Canal

Fair

Bonneville County, Idaho · 0.3 S. 4.5 E. Ririe · Structure no. 000000000031130

Built
1971
54 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
160
2023 count
Owner
County
County Highway Agency

About this bridge

175th E./Poplar RD over Anderson Canal is a prestressed concrete tee beam carrying 175th E./Poplar RD over Anderson Canal in Bonneville 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 160 vehicles a day, roughly 7% of them trucks, projected to reach 240 by 2042. The structure is 39 ft (11.9 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries175th E./Poplar RD
CrossesAnderson Canal
Location0.3 S. 4.5 E. Ririe
RouteCounty Highway 0
CountyBonneville County
StateIdaho
Coordinates43.62153, -111.68578
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2023)
Projected traffic240 by 2042
Trucks7%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 175th E./Poplar RD over Anderson Canal built?

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

What condition is 175th E./Poplar RD over Anderson 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 175th E./Poplar RD over Anderson Canal carry?

About 160 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is 175th E./Poplar RD over Anderson Canal?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 30 ft wide.

Who owns 175th E./Poplar RD over Anderson Canal?

It is owned by the County Highway Agency.