US Bridges

US 93; on Ramp over US 93

Fair

Twin Falls County, Idaho · 4.7 W. Twin Falls Wcl · Structure no. 000000000019388

Built
2011
14 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
268 ft
2 main spans
Daily traffic
5,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 93; on Ramp over US 93 is a prestressed concrete continuous box beam or girders - single or spread carrying US 93; on Ramp over US 93 in Twin Falls County, Idaho. It was built in 2011, so it is 14 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 5,600 vehicles a day, roughly 20% of them trucks, projected to reach 8,400 by 2042. The structure is 268 ft (81.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 93; on Ramp
CrossesUS 93
Location4.7 W. Twin Falls Wcl
RouteU.S. Route 93
CountyTwin Falls County
StateIdaho
Coordinates42.59303, -114.57172
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating37.5 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length268 ft (81.7 m)
Longest span131 ft (40 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2023)
Projected traffic8,400 by 2042
Trucks20%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 US 93; on Ramp over US 93 built?

It was built in 2011, making it 14 years old in 2025.

What condition is US 93; on Ramp over US 93 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 August 2023.

How much traffic does US 93; on Ramp over US 93 carry?

About 5,600 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is US 93; on Ramp over US 93?

The structure is 268 ft (81.7 m) long with a longest span of 131 ft (40 m) and a deck 31 ft wide.

Who owns US 93; on Ramp over US 93?

It is owned by the State Highway Agency.