US Bridges

STC2866;300 N. Rd. over Main Northside Canal

Good

Minidoka County, Idaho · Acequia · Structure no. 000000000025271

Built
2001
24 years old
Condition
Good
inspected April 2021
Type
Frame
Concrete Continuous
Length
53 ft
2 main spans
Daily traffic
270
2023 count
Owner
County
County Highway Agency

About this bridge

STC2866;300 N. Rd. over Main Northside Canal is a concrete continuous frame carrying STC2866;300 N. Rd. over Main Northside Canal in Minidoka County, Idaho. It was built in 2001, so it is 24 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 270 vehicles a day, roughly 42% of them trucks, projected to reach 405 by 2042. The structure is 53 ft (16.2 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSTC2866;300 N. Rd.
CrossesMain Northside Canal
LocationAcequia
RouteCounty Highway 2866
CountyMinidoka County
StateIdaho
Coordinates42.66339, -113.60419
Functional classRural Minor Collector

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 inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span25 ft (7.6 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2023)
Projected traffic405 by 2042
Trucks42%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 STC2866;300 N. Rd. over Main Northside Canal built?

It was built in 2001, making it 24 years old in 2025.

What condition is STC2866;300 N. Rd. over Main Northside 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 April 2021.

How much traffic does STC2866;300 N. Rd. over Main Northside Canal carry?

About 270 vehicles per day (2023 count), of which roughly 42% are trucks.

How long is STC2866;300 N. Rd. over Main Northside Canal?

The structure is 53 ft (16.2 m) long with a longest span of 25 ft (7.6 m) and a deck 38 ft wide.

Who owns STC2866;300 N. Rd. over Main Northside Canal?

It is owned by the County Highway Agency.