US Bridges

Stp 9463;FIVE Mile over Ridenbaugh Canal

Good

Ada County, Idaho · 0.5 S. 3.9 E. Meridian · Structure no. 000000000026086

Built
1995
30 years old
Condition
Good
inspected November 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
24,000
2023 count
Owner
County
County Highway Agency

About this bridge

Stp 9463;FIVE Mile over Ridenbaugh Canal is a concrete frame carrying Stp 9463;FIVE Mile over Ridenbaugh Canal in Ada County, Idaho. It was built in 1995, so it is 30 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 24,000 vehicles a day, roughly 2% of them trucks, projected to reach 36,000 by 2042. The structure is 26 ft (7.9 m) long and 85 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStp 9463;FIVE Mile
CrossesRidenbaugh Canal
Location0.5 S. 3.9 E. Meridian
RouteCounty Highway 9463
CountyAda County
StateIdaho
Coordinates43.60467, -116.31428
Functional classUrban Other Principal Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating89 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width85 ft (25.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,000 (2023)
Projected traffic36,000 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Stp 9463;FIVE Mile over Ridenbaugh Canal built?

It was built in 1995, making it 30 years old in 2025.

What condition is Stp 9463;FIVE Mile over Ridenbaugh 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 Stp 9463;FIVE Mile over Ridenbaugh Canal carry?

About 24,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Stp 9463;FIVE Mile over Ridenbaugh Canal?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 85 ft wide.

Who owns Stp 9463;FIVE Mile over Ridenbaugh Canal?

It is owned by the County Highway Agency.