US Bridges

Sma 7028;BEACON Lt over Farmers Union Canal

Good

Ada County, Idaho · 2.0 N. 0.3 E. Eagle · Structure no. 000000000026146

Built
1993
32 years old
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
5,900
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7028;BEACON Lt over Farmers Union Canal is a prestressed concrete box beam or girders - multiple carrying Sma 7028;BEACON Lt over Farmers Union Canal in Ada County, Idaho. It was built in 1993, so it is 32 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,900 vehicles a day, roughly 23% of them trucks, projected to reach 8,850 by 2042. The structure is 35 ft (10.7 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSma 7028;BEACON Lt
CrossesFarmers Union Canal
Location2.0 N. 0.3 E. Eagle
RouteCounty Highway 7028
CountyAda County
StateIdaho
Coordinates43.72082, -116.34781
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2023)
Projected traffic8,850 by 2042
Trucks23%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Sma 7028;BEACON Lt over Farmers Union Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is Sma 7028;BEACON Lt over Farmers Union Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2022.

How much traffic does Sma 7028;BEACON Lt over Farmers Union Canal carry?

About 5,900 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Sma 7028;BEACON Lt over Farmers Union Canal?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 43 ft wide.

Who owns Sma 7028;BEACON Lt over Farmers Union Canal?

It is owned by the County Highway Agency.