US Bridges

STC3780;W Galloway over Notus Canal

Good

Canyon County, Idaho · 1.7 N. 2.4 E. Notus · Structure no. 000000000027090

Built
1969
56 years old
Condition
Good
inspected February 2023
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
410
2023 count
Owner
Local
Other Local Agency

About this bridge

STC3780;W Galloway over Notus Canal is a concrete frame carrying STC3780;W Galloway over Notus Canal in Canyon County, Idaho. It was built in 1969, so it is 56 years old, older 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 410 vehicles a day, roughly 46% of them trucks, projected to reach 615 by 2042. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSTC3780;W Galloway
CrossesNotus Canal
Location1.7 N. 2.4 E. Notus
RouteCounty Highway 3780
StateIdaho
Coordinates43.74911, -116.75281
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2023)
Projected traffic615 by 2042
Trucks46%
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 STC3780;W Galloway over Notus Canal built?

It was built in 1969, making it 56 years old in 2025.

What condition is STC3780;W Galloway over Notus 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 2023.

How much traffic does STC3780;W Galloway over Notus Canal carry?

About 410 vehicles per day (2023 count), of which roughly 46% are trucks.

How long is STC3780;W Galloway over Notus Canal?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns STC3780;W Galloway over Notus Canal?

It is owned by the Other Local Agency.