US Bridges

Perkins Lane over Squaw Creek

FairPosted for load

Gem County, Idaho · 1.0 S. 0.6 W. Ola · Structure no. 000000000028031

Built
1992
33 years old
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
62 ft
1 main span
Daily traffic
13
2023 count
Owner
County
County Highway Agency

About this bridge

Perkins Lane over Squaw Creek is a steel truss - thru carrying Perkins Lane over Squaw Creek in Gem County, Idaho. It was built in 1992, so it is 33 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. Its operating status is: posted for load restriction.

It carries about 13 vehicles a day, roughly 5% of them trucks, projected to reach 20 by 2039. The structure is 62 ft (18.9 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPerkins Lane
CrossesSquaw Creek
Location1.0 S. 0.6 W. Ola
RouteCounty Highway 0
CountyGem County
StateIdaho
Coordinates44.16544, -116.30625
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 15
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13 (2023)
Projected traffic20 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$596,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Perkins Lane over Squaw Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Perkins Lane over Squaw Creek 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 July 2024.

How much traffic does Perkins Lane over Squaw Creek carry?

About 13 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Perkins Lane over Squaw Creek?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 20 ft wide.

Who owns Perkins Lane over Squaw Creek?

It is owned by the County Highway Agency.