US Bridges

Old HWY 30 over Little Canyon Creek

Fair

Elmore County, Idaho · In Glenns Ferry · Structure no. 000000000027945

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
940
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old HWY 30 over Little Canyon Creek is a concrete tee beam carrying Old HWY 30 over Little Canyon Creek in Elmore County, Idaho. It was built in 1955, so it is 70 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 940 vehicles a day, projected to reach 1,410 by 2042. The structure is 120 ft (36.6 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesOld HWY 30
CrossesLittle Canyon Creek
LocationIn Glenns Ferry
RouteCity Street 0
StateIdaho
Coordinates42.95728, -115.30433
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span39 ft (11.9 m)
Deck width52 ft (15.8 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic940 (2023)
Projected traffic1,410 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Old HWY 30 over Little Canyon Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Old HWY 30 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 April 2023.

How much traffic does Old HWY 30 over Little Canyon Creek carry?

About 940 vehicles per day (2023 count).

How long is Old HWY 30 over Little Canyon Creek?

The structure is 120 ft (36.6 m) long with a longest span of 39 ft (11.9 m) and a deck 52 ft wide.

Who owns Old HWY 30 over Little Canyon Creek?

It is owned by the City or Municipal Highway Agency.