US Bridges

US 95 over Weiser River

Fair

Adams County, Idaho · 9.4 N. Council Ncl · Structure no. 000000000018231

Built
2020
5 years old
Condition
Fair
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
272 ft
2 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over Weiser River is a prestressed concrete stringer/multi-beam or girder carrying US 95 over Weiser River in Adams County, Idaho. It was built in 2020, so it is 5 years old, younger 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 2,300 vehicles a day, roughly 24% of them trucks, projected to reach 3,450 by 2042. The structure is 272 ft (82.9 m) long and 42 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUS 95
CrossesWeiser River
Location9.4 N. Council Ncl
RouteU.S. Route 95
CountyAdams County
StateIdaho
Coordinates44.84886, -116.37825
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2022
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length272 ft (82.9 m)
Longest span135 ft (41.1 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,450 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 95 over Weiser River built?

It was built in 2020, making it 5 years old in 2025.

What condition is US 95 over 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 June 2022.

How much traffic does US 95 over Weiser River carry?

About 2,300 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US 95 over Weiser River?

The structure is 272 ft (82.9 m) long with a longest span of 135 ft (41.1 m) and a deck 42 ft wide.

Who owns US 95 over Weiser River?

It is owned by the State Highway Agency.