US Bridges

US 95 over M.Fk.Weiser River

Fair

Adams County, Idaho · 5.4 S. Council · Structure no. 000000000018200

Built
1974
51 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
3 main spans
Daily traffic
2,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over M.Fk.Weiser River is a prestressed concrete stringer/multi-beam or girder carrying US 95 over M.Fk.Weiser River in Adams County, Idaho. It was built in 1974, so it is 51 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 5 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 2,900 vehicles a day, roughly 14% of them trucks, projected to reach 4,350 by 2042. The structure is 160 ft (48.8 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesUS 95
CrossesM.Fk.Weiser River
Location5.4 S. Council
RouteU.S. Route 95
CountyAdams County
StateIdaho
Coordinates44.65675, -116.45222
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span71 ft (21.6 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2023)
Projected traffic4,350 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 M.Fk.Weiser River built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 95 over M.Fk.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 2024.

How much traffic does US 95 over M.Fk.Weiser River carry?

About 2,900 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 95 over M.Fk.Weiser River?

The structure is 160 ft (48.8 m) long with a longest span of 71 ft (21.6 m) and a deck 40 ft wide.

Who owns US 95 over M.Fk.Weiser River?

It is owned by the State Highway Agency.