US Bridges

S. Edison Road over A Line Canal

Fair

Owyhee County, Idaho · 1.8 S. 1.0 W. Marsing · Structure no. 000000000028215

Built
1979
46 years old
Condition
Fair
inspected February 2023
Type
Frame
Prestressed Concrete
Length
23 ft
2 main spans
Daily traffic
130
2023 count
Owner
Local
Other Local Agency

About this bridge

S. Edison Road over A Line Canal is a prestressed concrete frame carrying S. Edison Road over A Line Canal in Owyhee County, Idaho. It was built in 1979, so it is 46 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 5 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 130 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2039. The structure is 23 ft (7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS. Edison Road
CrossesA Line Canal
Location1.8 S. 1.0 W. Marsing
RouteCounty Highway 0
CountyOwyhee County
StateIdaho
Coordinates43.51861, -116.8315
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeFrame
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2023)
Projected traffic195 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$291,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S. Edison Road over A Line Canal built?

It was built in 1979, making it 46 years old in 2025.

What condition is S. Edison Road over A Line 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 February 2023.

How much traffic does S. Edison Road over A Line Canal carry?

About 130 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is S. Edison Road over A Line Canal?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 32 ft wide.

Who owns S. Edison Road over A Line Canal?

It is owned by the Other Local Agency.