US Bridges

Register RD over I 86;CO Frontage RD Gs

Fair

Power County, Idaho · 12.0 W. American Falls · Structure no. 000000000023580

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
364 ft
2 main spans
Daily traffic
50
2023 count
Owner
State
State Highway Agency

About this bridge

Register RD over I 86;CO Frontage RD Gs is a concrete continuous box beam or girders - single or spread carrying Register RD over I 86;CO Frontage RD Gs in Power County, Idaho. It was built in 1983, so it is 42 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2042. The structure is 364 ft (110.9 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRegister RD
CrossesI 86;CO Frontage RD Gs
Location12.0 W. American Falls
RouteCounty Highway 0
StateIdaho
Coordinates42.65306, -113.01339
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating23 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length364 ft (110.9 m)
Longest span200 ft (61 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Register RD over I 86;CO Frontage RD Gs built?

It was built in 1983, making it 42 years old in 2025.

What condition is Register RD over I 86;CO Frontage RD Gs 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 May 2024.

How much traffic does Register RD over I 86;CO Frontage RD Gs carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Register RD over I 86;CO Frontage RD Gs?

The structure is 364 ft (110.9 m) long with a longest span of 200 ft (61 m) and a deck 34 ft wide.

Who owns Register RD over I 86;CO Frontage RD Gs?

It is owned by the State Highway Agency.