US Bridges

S. 11th Avenue over Indian Creek

Good

Canyon County, Idaho · In Caldwell; 11th Ave · Structure no. 000000000027661

Built
2009
16 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
968
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

S. 11th Avenue over Indian Creek is a steel stringer/multi-beam or girder carrying S. 11th Avenue over Indian Creek in Canyon County, Idaho. It was built in 2009, so it is 16 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 968 vehicles a day, roughly 2% of them trucks, projected to reach 1,452 by 2039. The structure is 54 ft (16.5 m) long and 154 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesS. 11th Avenue
CrossesIndian Creek
LocationIn Caldwell; 11th Ave
RouteCity Street 0
StateIdaho
Coordinates43.66336, -116.68508
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span49 ft (14.9 m)
Deck width154 ft (46.9 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic968 (2023)
Projected traffic1,452 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 S. 11th Avenue over Indian Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is S. 11th Avenue 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 2023.

How much traffic does S. 11th Avenue over Indian Creek carry?

About 968 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S. 11th Avenue over Indian Creek?

The structure is 54 ft (16.5 m) long with a longest span of 49 ft (14.9 m) and a deck 154 ft wide.

Who owns S. 11th Avenue over Indian Creek?

It is owned by the City or Municipal Highway Agency.