US Bridges

Frontage Road over N Canal

Good

Jerome County, Idaho · 0.6 S. 0.9 W. Jerome · Structure no. 000000000024575

Built
1964
61 years old
Condition
Good
inspected November 2022
Type
Frame
Concrete
Length
25 ft
1 main span
Daily traffic
170
2023 count
Owner
Local
Other Local Agency

About this bridge

Frontage Road over N Canal is a concrete frame carrying Frontage Road over N Canal in Jerome County, Idaho. It was built in 1964, so it is 61 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 170 vehicles a day, roughly 13% of them trucks, projected to reach 255 by 2042. The structure is 25 ft (7.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFrontage Road
CrossesN Canal
Location0.6 S. 0.9 W. Jerome
RouteCounty Highway 0
StateIdaho
Coordinates42.71451, -114.53648
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2023)
Projected traffic255 by 2042
Trucks13%
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

OwnerOther Local Agency
Maintained byOther Local 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 Frontage Road over N Canal built?

It was built in 1964, making it 61 years old in 2025.

What condition is Frontage Road over N 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 2022.

How much traffic does Frontage Road over N Canal carry?

About 170 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Frontage Road over N Canal?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns Frontage Road over N Canal?

It is owned by the Other Local Agency.