US Bridges

Ridge Road over W.Fk.Weiser River

Good

Adams County, Idaho · 6.2 N. 1.1 W. Council · Structure no. 000000000026476

Built
2022
3 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

Ridge Road over W.Fk.Weiser River is a steel stringer/multi-beam or girder carrying Ridge Road over W.Fk.Weiser River in Adams County, Idaho. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, roughly 17% of them trucks, projected to reach 105 by 2042. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesRidge Road
CrossesW.Fk.Weiser River
Location6.2 N. 1.1 W. Council
RouteCounty Highway 0
CountyAdams County
StateIdaho
Coordinates44.819, -116.46072
Functional classRural 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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span57 ft (17.5 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2042
Trucks17%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Ridge Road over W.Fk.Weiser River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Ridge Road over W.Fk.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 August 2024.

How much traffic does Ridge Road over W.Fk.Weiser River carry?

About 70 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Ridge Road over W.Fk.Weiser River?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.5 m) and a deck 16 ft wide.

Who owns Ridge Road over W.Fk.Weiser River?

It is owned by the County Highway Agency.