US Bridges

SH 24 over 702-A Canal

Good

Lincoln County, Idaho · 13.3 E. Shoshone · Structure no. 000000000013010

Built
1976
49 years old
Condition
Good
inspected November 2024
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
710
2023 count
Owner
State
State Highway Agency

About this bridge

SH 24 over 702-A Canal is a concrete frame carrying SH 24 over 702-A Canal in Lincoln County, Idaho. It was built in 1976, so it is 49 years old, older 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 710 vehicles a day, roughly 27% of them trucks, projected to reach 1,065 by 2042. The structure is 23 ft (7 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 24
Crosses702-A Canal
Location13.3 E. Shoshone
RouteState Highway 24
StateIdaho
Coordinates42.89764, -114.16875
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width66 ft (20.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2023)
Projected traffic1,065 by 2042
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 24 over 702-A Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is SH 24 over 702-A Canal 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 November 2024.

How much traffic does SH 24 over 702-A Canal carry?

About 710 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is SH 24 over 702-A Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 66 ft wide.

Who owns SH 24 over 702-A Canal?

It is owned by the State Highway Agency.