US Bridges

Osborn Loop over Fall Creek

Fair

Power County, Idaho · 2.0 E. Exit 21(COLDWATER) · Structure no. 000000000023555

Built
1981
44 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
95
2023 count
Owner
County
County Highway Agency

About this bridge

Osborn Loop over Fall Creek is a prestressed concrete stringer/multi-beam or girder carrying Osborn Loop over Fall Creek in Power County, Idaho. It was built in 1981, so it is 44 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 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 95 vehicles a day, roughly 10% of them trucks, projected to reach 143 by 2039. The structure is 102 ft (31.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOsborn Loop
CrossesFall Creek
Location2.0 E. Exit 21(COLDWATER)
RouteCounty Highway 0
StateIdaho
Coordinates42.62642, -113.08581
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating22 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2023)
Projected traffic143 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Osborn Loop over Fall Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Osborn Loop over Fall 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 March 2024.

How much traffic does Osborn Loop over Fall Creek carry?

About 95 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Osborn Loop over Fall Creek?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns Osborn Loop over Fall Creek?

It is owned by the County Highway Agency.