US Bridges

Lttl Weiser Rvr RD over Little Weiser River

Fair

Adams County, Idaho · 4.7S 2.2E Indian Valley · Structure no. 000000000026550

Built
1953
72 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
2 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Lttl Weiser Rvr RD over Little Weiser River is a steel stringer/multi-beam or girder carrying Lttl Weiser Rvr RD over Little Weiser River in Adams County, Idaho. It was built in 1953, so it is 72 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 45 by 2039. The structure is 72 ft (21.9 m) long and 15 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesLttl Weiser Rvr RD
CrossesLittle Weiser River
Location4.7S 2.2E Indian Valley
RouteCounty Highway 0
StateIdaho
Coordinates44.48953, -116.39094
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum 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 rating55 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span37 ft (11.3 m)
Deck width15 ft (4.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$672,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lttl Weiser Rvr RD over Little Weiser River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Lttl Weiser Rvr RD over Little Weiser River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Lttl Weiser Rvr RD over Little Weiser River carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Lttl Weiser Rvr RD over Little Weiser River?

The structure is 72 ft (21.9 m) long with a longest span of 37 ft (11.3 m) and a deck 15 ft wide.

Who owns Lttl Weiser Rvr RD over Little Weiser River?

It is owned by the County Highway Agency.