US Bridges

Ditto Creek Road over I 84;DITTO Creek RD Gs

Fair

Elmore County, Idaho · 11.4 W. Mountain Home · Structure no. 000000000027880

Built
1959
66 years old, rebuilt 1978
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
212 ft
2 main spans
Daily traffic
650
2023 count
Owner
State
State Highway Agency

About this bridge

Ditto Creek Road over I 84;DITTO Creek RD Gs is a prestressed concrete box beam or girders - multiple carrying Ditto Creek Road over I 84;DITTO Creek RD Gs in Elmore County, Idaho. It was built in 1959 and reconstructed in 1978, so it is 66 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 650 vehicles a day, roughly 8% of them trucks, projected to reach 975 by 2042. The structure is 212 ft (64.6 m) long and 29 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesDitto Creek Road
CrossesI 84;DITTO Creek RD Gs
Location11.4 W. Mountain Home
RouteCounty Highway 0
CountyElmore County
StateIdaho
Coordinates43.23706, -115.83797
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span48 ft (14.6 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2023)
Projected traffic975 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed32.9 mi (53 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 Ditto Creek Road over I 84;DITTO Creek RD Gs built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1978.

What condition is Ditto Creek Road over I 84;DITTO Creek 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 2023.

How much traffic does Ditto Creek Road over I 84;DITTO Creek RD Gs carry?

About 650 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ditto Creek Road over I 84;DITTO Creek RD Gs?

The structure is 212 ft (64.6 m) long with a longest span of 48 ft (14.6 m) and a deck 29 ft wide.

Who owns Ditto Creek Road over I 84;DITTO Creek RD Gs?

It is owned by the State Highway Agency.