US Bridges

STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR

Fair

Elmore County, Idaho · 2.0 S. Mountain Home · Structure no. 000000000013765

Built
1973
52 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
277 ft
5 main spans
Daily traffic
3,200
2023 count
Owner
Local
Other Local Agency

About this bridge

STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR is a prestressed concrete stringer/multi-beam or girder carrying STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR in Elmore County, Idaho. It was built in 1973, so it is 52 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 3,200 vehicles a day, roughly 6% of them trucks, projected to reach 4,800 by 2042. The structure is 277 ft (84.4 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSTC3813;OLD Ore TR
CrossesSTC3816;OLD US 30;UPRR
Location2.0 S. Mountain Home
RouteCounty Highway 3813
CountyElmore County
StateIdaho
Coordinates43.08864, -115.66211
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length277 ft (84.4 m)
Longest span59 ft (18 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2023)
Projected traffic4,800 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR built?

It was built in 1973, making it 52 years old in 2025.

What condition is STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR 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 2023.

How much traffic does STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR carry?

About 3,200 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR?

The structure is 277 ft (84.4 m) long with a longest span of 59 ft (18 m) and a deck 40 ft wide.

Who owns STC3813;OLD Ore TR over STC3816;OLD US 30;UPRR?

It is owned by the Other Local Agency.