US Bridges

NHS8031;OLD Butte over E Lateral Canal

Fair

Bonneville County, Idaho · In Idaho Falls · Structure no. 000000000031145

Built
1928
97 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
1,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

NHS8031;OLD Butte over E Lateral Canal is a concrete frame carrying NHS8031;OLD Butte over E Lateral Canal in Bonneville County, Idaho. It was built in 1928, so it is 97 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 1,000 vehicles a day, roughly 19% of them trucks, projected to reach 1,500 by 2042. The structure is 22 ft (6.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNHS8031;OLD Butte
CrossesE Lateral Canal
LocationIn Idaho Falls
RouteCity Street 8031
CountyBonneville County
StateIdaho
Coordinates43.508, -112.083
Functional classUrban Other Principal Arterial

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,500 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 NHS8031;OLD Butte over E Lateral Canal built?

It was built in 1928, making it 97 years old in 2025.

What condition is NHS8031;OLD Butte over E Lateral Canal 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 November 2023.

How much traffic does NHS8031;OLD Butte over E Lateral Canal carry?

About 1,000 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is NHS8031;OLD Butte over E Lateral Canal?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns NHS8031;OLD Butte over E Lateral Canal?

It is owned by the City or Municipal Highway Agency.