US Bridges

7th Ave N. over Indian Creek

Good

Canyon County, Idaho · In NAMPA;7th Ave N · Structure no. 000000000027680

Built
1978
47 years old
Condition
Good
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
8,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th Ave N. over Indian Creek is a prestressed concrete tee beam carrying 7th Ave N. over Indian Creek in Canyon County, Idaho. It was built in 1978, so it is 47 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 8,000 vehicles a day, roughly 10% of them trucks, projected to reach 12,000 by 2039. The structure is 32 ft (9.8 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries7th Ave N.
CrossesIndian Creek
LocationIn NAMPA;7th Ave N
RouteCity Street 0
StateIdaho
Coordinates43.58528, -116.56128
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width53 ft (16.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2023)
Projected traffic12,000 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 7th Ave N. over Indian Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is 7th 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 February 2023.

How much traffic does 7th Ave N. over Indian Creek carry?

About 8,000 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 7th Ave N. over Indian Creek?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 53 ft wide.

Who owns 7th Ave N. over Indian Creek?

It is owned by the City or Municipal Highway Agency.