US Bridges

I 84B ;first Ave over Little Canyon Creek

Fair

Elmore County, Idaho · In Glenns Ferry;first Ave · Structure no. 000000000016580

Built
1962
63 years old
Condition
Fair
inspected August 2021
Type
Tee Beam
Concrete
Length
30 ft
1 main span
Daily traffic
3,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 84B ;first Ave over Little Canyon Creek is a concrete tee beam carrying I 84B ;first Ave over Little Canyon Creek in Elmore County, Idaho. It was built in 1962, so it is 63 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 3,000 vehicles a day, roughly 3% of them trucks, projected to reach 4,500 by 2042. The structure is 30 ft (9.1 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 84B ;first Ave
CrossesLittle Canyon Creek
LocationIn Glenns Ferry;first Ave
RouteCity Street 84
StateIdaho
Coordinates42.95375, -115.304
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width52 ft (15.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2023)
Projected traffic4,500 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

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 I 84B ;first Ave over Little Canyon Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 84B ;first Ave over Little Canyon 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 August 2021.

How much traffic does I 84B ;first Ave over Little Canyon Creek carry?

About 3,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is I 84B ;first Ave over Little Canyon Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 52 ft wide.

Who owns I 84B ;first Ave over Little Canyon Creek?

It is owned by the State Highway Agency.