US Bridges

9th Ave N. over Indian Creek

Good

Canyon County, Idaho · In NAMPA;9th Ave N · Structure no. 000000000027685

Built
1980
45 years old
Condition
Good
inspected March 2024
Type
Culvert
Steel
Length
24 ft
1 main span
Daily traffic
1,700
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th Ave N. over Indian Creek is a steel culvert carrying 9th Ave N. over Indian Creek in Canyon County, Idaho. It was built in 1980, so it is 45 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 1,700 vehicles a day, roughly 10% of them trucks, projected to reach 2,550 by 2039. The structure is 24 ft (7.3 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries9th Ave N.
CrossesIndian Creek
LocationIn NAMPA;9th Ave N
RouteCity Street 0
StateIdaho
Coordinates43.58417, -116.55889
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 48 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 rating67 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width54 ft (16.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,550 by 2039
Trucks10%
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 9th Ave N. over Indian Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is 9th Ave N. over Indian Creek 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 9th Ave N. over Indian Creek carry?

About 1,700 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 9th Ave N. over Indian Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 54 ft wide.

Who owns 9th Ave N. over Indian Creek?

It is owned by the City or Municipal Highway Agency.