US Bridges

US 26 over Ririe Outlet;willow Crk

Fair

Bonneville County, Idaho · 9.0 N. Idaho Falls · Structure no. 000000000013261

Built
2010
15 years old
Condition
Fair
inspected March 2024
Type
Frame
Concrete
Length
35 ft
1 main span
Daily traffic
7,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 26 over Ririe Outlet;willow Crk is a concrete frame carrying US 26 over Ririe Outlet;willow Crk in Bonneville County, Idaho. It was built in 2010, so it is 15 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 7,400 vehicles a day, roughly 8% of them trucks, projected to reach 11,100 by 2042. The structure is 35 ft (10.7 m) long and 112 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 26
CrossesRirie Outlet;willow Crk
Location9.0 N. Idaho Falls
RouteU.S. Route 26
CountyBonneville County
StateIdaho
Coordinates43.57583, -111.90664
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating55 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width112 ft (34.1 m)
Roadway width110 ft (33.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,400 (2023)
Projected traffic11,100 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 26 over Ririe Outlet;willow Crk built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 26 over Ririe Outlet;willow Crk 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 March 2024.

How much traffic does US 26 over Ririe Outlet;willow Crk carry?

About 7,400 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 26 over Ririe Outlet;willow Crk?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 112 ft wide.

Who owns US 26 over Ririe Outlet;willow Crk?

It is owned by the State Highway Agency.