US Bridges

US 93 over Perrine Coulee;bike Path

Fair

Twin Falls County, Idaho · In Twin Falls · Structure no. 000000000019393

Built
2006
19 years old
Condition
Fair
inspected August 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
33,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 over Perrine Coulee;bike Path is a prestressed concrete box beam or girders - multiple carrying US 93 over Perrine Coulee;bike Path in Twin Falls County, Idaho. It was built in 2006, so it is 19 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 33,000 vehicles a day, roughly 6% of them trucks, projected to reach 49,500 by 2042. The structure is 39 ft (11.9 m) long and 140 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 93
CrossesPerrine Coulee;bike Path
LocationIn Twin Falls
RouteU.S. Route 93
StateIdaho
Coordinates42.59191, -114.47159
Functional classUrban Other Principal Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width140 ft (42.7 m)
Roadway width102 ft (31.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,000 (2023)
Projected traffic49,500 by 2042
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 93 over Perrine Coulee;bike Path built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 93 over Perrine Coulee;bike Path 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 2021.

How much traffic does US 93 over Perrine Coulee;bike Path carry?

About 33,000 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 93 over Perrine Coulee;bike Path?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 140 ft wide.

Who owns US 93 over Perrine Coulee;bike Path?

It is owned by the State Highway Agency.