US Bridges

IRR BIA RTE 182 over Bannock Creek

Fair

Power County, Idaho · 14 KM S JCT I-15 & Rt 161 · Structure no. 00000000000P432

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
30
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 182 over Bannock Creek is a prestressed concrete channel beam carrying IRR BIA RTE 182 over Bannock Creek in Power County, Idaho. It was built in 1972, so it is 53 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 30 vehicles a day, roughly 5% of them trucks, projected to reach 70 by 2043. The structure is 42 ft (12.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIRR BIA RTE 182
CrossesBannock Creek
Location14 KM S JCT I-15 & Rt 161
RouteFederal Lands Road 182
CountyPower County
StateIdaho
Coordinates42.76922, -112.62269
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating21.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length42 ft (12.7 m)
Longest span39 ft (12 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic70 by 2043
Trucks5%
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

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$37,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR BIA RTE 182 over Bannock Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is IRR BIA RTE 182 over Bannock 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 June 2023.

How much traffic does IRR BIA RTE 182 over Bannock Creek carry?

About 30 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 182 over Bannock Creek?

The structure is 42 ft (12.7 m) long with a longest span of 39 ft (12 m) and a deck 33 ft wide.

Who owns IRR BIA RTE 182 over Bannock Creek?

It is owned by the Bureau of Indian Affairs.