US Bridges

STC8533;SMITH Ave over Phyllis Canal

Good

Canyon County, Idaho · 0.3 N 3.2 W Nampa · Structure no. 000000000027026

Built
2010
15 years old
Condition
Good
inspected March 2022
Type
Frame
Concrete
Length
21 ft
1 main span
Daily traffic
620
2023 count
Owner
Local
Other Local Agency

About this bridge

STC8533;SMITH Ave over Phyllis Canal is a concrete frame carrying STC8533;SMITH Ave over Phyllis Canal in Canyon County, Idaho. It was built in 2010, so it is 15 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 620 vehicles a day, projected to reach 930 by 2042. The structure is 21 ft (6.4 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSTC8533;SMITH Ave
CrossesPhyllis Canal
Location0.3 N 3.2 W Nampa
RouteCounty Highway 8533
CountyCanyon County
StateIdaho
Coordinates43.58314, -116.62514
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2022
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 rating99.9 US tons
Inventory rating61 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic620 (2023)
Projected traffic930 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 STC8533;SMITH Ave over Phyllis Canal built?

It was built in 2010, making it 15 years old in 2025.

What condition is STC8533;SMITH Ave over Phyllis 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 March 2022.

How much traffic does STC8533;SMITH Ave over Phyllis Canal carry?

About 620 vehicles per day (2023 count).

How long is STC8533;SMITH Ave over Phyllis Canal?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 45 ft wide.

Who owns STC8533;SMITH Ave over Phyllis Canal?

It is owned by the Other Local Agency.