US Bridges

Stc 4698;E 600 N over Southside Canal

Fair

Cassia County, Idaho · 6.8 N. 3.3 E. Declo · Structure no. 000000000024211

Built
1998
27 years old
Condition
Fair
inspected March 2022
Type
Frame
Concrete
Length
73 ft
2 main spans
Daily traffic
720
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 4698;E 600 N over Southside Canal is a concrete frame carrying Stc 4698;E 600 N over Southside Canal in Cassia County, Idaho. It was built in 1998, so it is 27 years old, younger 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 720 vehicles a day, projected to reach 1,080 by 2042. The structure is 73 ft (22.3 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStc 4698;E 600 N
CrossesSouthside Canal
Location6.8 N. 3.3 E. Declo
RouteCounty Highway 4698
CountyCassia County
StateIdaho
Coordinates42.61942, -113.564
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span35 ft (10.7 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2023)
Projected traffic1,080 by 2042
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 4698;E 600 N over Southside Canal built?

It was built in 1998, making it 27 years old in 2025.

What condition is Stc 4698;E 600 N over Southside 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 March 2022.

How much traffic does Stc 4698;E 600 N over Southside Canal carry?

About 720 vehicles per day (2023 count).

How long is Stc 4698;E 600 N over Southside Canal?

The structure is 73 ft (22.3 m) long with a longest span of 35 ft (10.7 m) and a deck 48 ft wide.

Who owns Stc 4698;E 600 N over Southside Canal?

It is owned by the Other Local Agency.