US Bridges

N 95th E over Willow Creek

Fair

Bonneville County, Idaho · 2.4 S. 3.5 W. Ririe · Structure no. 000000000031350

Built
1945
80 years old, rebuilt 1965
Condition
Fair
inspected April 2024
Type
Channel Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
170
2023 count
Owner
County
County Highway Agency

About this bridge

N 95th E over Willow Creek is a prestressed concrete channel beam carrying N 95th E over Willow Creek in Bonneville County, Idaho. It was built in 1945 and reconstructed in 1965, so it is 80 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 170 vehicles a day, roughly 13% of them trucks, projected to reach 255 by 2042. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN 95th E
CrossesWillow Creek
Location2.4 S. 3.5 W. Ririe
RouteCounty Highway 0
StateIdaho
Coordinates43.5931, -111.8444
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2023)
Projected traffic255 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$589,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N 95th E over Willow Creek built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1965.

What condition is N 95th E over Willow Creek 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 April 2024.

How much traffic does N 95th E over Willow Creek carry?

About 170 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is N 95th E over Willow Creek?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 27 ft wide.

Who owns N 95th E over Willow Creek?

It is owned by the County Highway Agency.