US Bridges

Ferguson Lane over Willow Creeek

Good

Bonneville County, Idaho · 1.8 S 2.7 W Ririe · Structure no. 000000000031126

Built
2014
11 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Ferguson Lane over Willow Creeek is a prestressed concrete tee beam carrying Ferguson Lane over Willow Creeek in Bonneville County, Idaho. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 11% of them trucks, projected to reach 150 by 2042. The structure is 71 ft (21.6 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesFerguson Lane
CrossesWillow Creeek
Location1.8 S 2.7 W Ririe
RouteCounty Highway 0
StateIdaho
Coordinates43.60147, -111.82681
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span69 ft (21 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic150 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Ferguson Lane over Willow Creeek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Ferguson Lane over Willow Creeek 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 April 2024.

How much traffic does Ferguson Lane over Willow Creeek carry?

About 100 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ferguson Lane over Willow Creeek?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (21 m) and a deck 26 ft wide.

Who owns Ferguson Lane over Willow Creeek?

It is owned by the County Highway Agency.