US Bridges

S. 4th Avenue over Indian Creek

Good

Canyon County, Idaho · In Caldwell; S 4th Ave · Structure no. 000000000027591

Built
2023
2 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
470
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

S. 4th Avenue over Indian Creek is a prestressed concrete box beam or girders - multiple carrying S. 4th Avenue over Indian Creek in Canyon County, Idaho. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 470 vehicles a day, roughly 10% of them trucks, projected to reach 705 by 2042. The structure is 39 ft (11.9 m) long and 76 ft wide.

CarriesS. 4th Avenue
CrossesIndian Creek
LocationIn Caldwell; S 4th Ave
RouteCity Street 0
StateIdaho
Coordinates43.66856, -116.69217
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating57.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width76 ft (23.2 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2023)
Projected traffic705 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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. 4th Avenue over Indian Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is S. 4th 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 June 2023.

How much traffic does S. 4th Avenue over Indian Creek carry?

About 470 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is S. 4th Avenue over Indian Creek?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 76 ft wide.

Who owns S. 4th Avenue over Indian Creek?

It is owned by the City or Municipal Highway Agency.