US Bridges

6th Street North over Phyllis Canal

Good

Canyon County, Idaho · In Nampa · Structure no. 000000000021836

Built
2000
25 years old
Condition
Good
inspected March 2024
Type
Frame
Concrete
Length
24 ft
1 main span
Daily traffic
5,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th Street North over Phyllis Canal is a concrete frame carrying 6th Street North over Phyllis Canal in Canyon County, Idaho. It was built in 2000, so it is 25 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 5,400 vehicles a day, projected to reach 8,100 by 2042. The structure is 24 ft (7.3 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries6th Street North
CrossesPhyllis Canal
LocationIn Nampa
RouteCity Street 0
StateIdaho
Coordinates43.58731, -116.55667
Functional classUrban 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 inspectionMarch 2024
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic8,100 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 6th Street North over Phyllis Canal built?

It was built in 2000, making it 25 years old in 2025.

What condition is 6th Street North 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 2024.

How much traffic does 6th Street North over Phyllis Canal carry?

About 5,400 vehicles per day (2023 count).

How long is 6th Street North over Phyllis Canal?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 64 ft wide.

Who owns 6th Street North over Phyllis Canal?

It is owned by the City or Municipal Highway Agency.