US Bridges

Power Plant Road over I 84;POWER Plant RD Gs

Fair

Gooding County, Idaho · 6.4 W. Bliss · Structure no. 000000000024490

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
2 main spans
Daily traffic
70
2023 count
Owner
State
State Highway Agency

About this bridge

Power Plant Road over I 84;POWER Plant RD Gs is a prestressed concrete stringer/multi-beam or girder carrying Power Plant Road over I 84;POWER Plant RD Gs in Gooding County, Idaho. It was built in 1970, so it is 55 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 105 by 2042. The structure is 251 ft (76.5 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPower Plant Road
CrossesI 84;POWER Plant RD Gs
Location6.4 W. Bliss
RouteCounty Highway 0
CountyGooding County
StateIdaho
Coordinates42.94167, -115.08494
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 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 rating60 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length251 ft (76.5 m)
Longest span97 ft (29.7 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 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 Power Plant Road over I 84;POWER Plant RD Gs built?

It was built in 1970, making it 55 years old in 2025.

What condition is Power Plant Road over I 84;POWER Plant 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 July 2023.

How much traffic does Power Plant Road over I 84;POWER Plant RD Gs carry?

About 70 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Power Plant Road over I 84;POWER Plant RD Gs?

The structure is 251 ft (76.5 m) long with a longest span of 97 ft (29.7 m) and a deck 32 ft wide.

Who owns Power Plant Road over I 84;POWER Plant RD Gs?

It is owned by the State Highway Agency.