US Bridges

1150 East Road over East Main Canal

Poor

Lincoln County, Idaho · 6.0 N. 1.0 W. Richfield · Structure no. 000000000025085

Built
1977
48 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
37 ft
2 main spans
Daily traffic
50
2023 count
Owner
Local
Other Local Agency

About this bridge

1150 East Road over East Main Canal is a steel continuous stringer/multi-beam or girder carrying 1150 East Road over East Main Canal in Lincoln County, Idaho. It was built in 1977, so it is 48 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 37 ft (11.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries1150 East Road
CrossesEast Main Canal
Location6.0 N. 1.0 W. Richfield
RouteCounty Highway 0
StateIdaho
Coordinates43.13317, -114.17478
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span17 ft (5.2 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$395,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1150 East Road over East Main Canal built?

It was built in 1977, making it 48 years old in 2025.

What condition is 1150 East Road over East Main Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does 1150 East Road over East Main Canal carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 1150 East Road over East Main Canal?

The structure is 37 ft (11.3 m) long with a longest span of 17 ft (5.2 m) and a deck 22 ft wide.

Who owns 1150 East Road over East Main Canal?

It is owned by the Other Local Agency.