US Bridges

Hooper Lane over Pahsimeroi River

Good

Custer County, Idaho · 3.5 S 0.8 E May · Structure no. 000000000034630

Built
2011
14 years old
Condition
Good
inspected July 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

Hooper Lane over Pahsimeroi River is a steel stringer/multi-beam or girder carrying Hooper Lane over Pahsimeroi River in Custer 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, roughly 15% of them trucks, projected to reach 105 by 2039. The structure is 39 ft (11.9 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesHooper Lane
CrossesPahsimeroi River
Location3.5 S 0.8 E May
RouteCounty Highway 0
StateIdaho
Coordinates44.55381, -113.89622
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hooper Lane over Pahsimeroi River built?

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

What condition is Hooper Lane over Pahsimeroi River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does Hooper Lane over Pahsimeroi River carry?

About 70 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Hooper Lane over Pahsimeroi River?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 24 ft wide.

Who owns Hooper Lane over Pahsimeroi River?

It is owned by the County Highway Agency.