US Bridges

STC3892;INDIAN Vly over Little Weiser River

Good

Adams County, Idaho · 1.2S Indian Valley · Structure no. 000000000020041

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
1 main span
Daily traffic
130
2023 count
Owner
County
County Highway Agency

About this bridge

STC3892;INDIAN Vly over Little Weiser River is a steel stringer/multi-beam or girder carrying STC3892;INDIAN Vly over Little Weiser River in Adams County, Idaho. It was built in 2002, so it is 23 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 130 vehicles a day, roughly 44% of them trucks, projected to reach 195 by 2042. The structure is 53 ft (16.2 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSTC3892;INDIAN Vly
CrossesLittle Weiser River
Location1.2S Indian Valley
RouteCounty Highway 3892
StateIdaho
Coordinates44.54028, -116.43278
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span51 ft (15.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2023)
Projected traffic195 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 STC3892;INDIAN Vly over Little Weiser River built?

It was built in 2002, making it 23 years old in 2025.

What condition is STC3892;INDIAN Vly over Little Weiser River 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 September 2024.

How much traffic does STC3892;INDIAN Vly over Little Weiser River carry?

About 130 vehicles per day (2023 count), of which roughly 44% are trucks.

How long is STC3892;INDIAN Vly over Little Weiser River?

The structure is 53 ft (16.2 m) long with a longest span of 51 ft (15.5 m) and a deck 24 ft wide.

Who owns STC3892;INDIAN Vly over Little Weiser River?

It is owned by the County Highway Agency.