US Bridges

500 West Road over I 84;500 West RD Gs

Fair

Minidoka County, Idaho · 1.2 E. Burley · Structure no. 000000000025315

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
3 main spans
Daily traffic
150
2023 count
Owner
State
State Highway Agency

About this bridge

500 West Road over I 84;500 West RD Gs is a prestressed concrete stringer/multi-beam or girder carrying 500 West Road over I 84;500 West RD Gs in Minidoka County, Idaho. It was built in 1961, so it is 64 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 225 by 2042. The structure is 212 ft (64.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries500 West Road
CrossesI 84;500 West RD Gs
Location1.2 E. Burley
RouteCounty Highway 0
CountyMinidoka County
StateIdaho
Coordinates42.56806, -113.76397
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic225 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 500 West Road over I 84;500 West RD Gs built?

It was built in 1961, making it 64 years old in 2025.

What condition is 500 West Road over I 84;500 West 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 April 2024.

How much traffic does 500 West Road over I 84;500 West RD Gs carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 500 West Road over I 84;500 West RD Gs?

The structure is 212 ft (64.6 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns 500 West Road over I 84;500 West RD Gs?

It is owned by the State Highway Agency.