US Bridges

SMA7743;OLD HWY 30 over Notus Canal

Fair

Canyon County, Idaho · 2.0 N. 0.1 W. Caldwell · Structure no. 000000000027101

Built
1993
32 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
2,100
2023 count
Owner
Local
Other Local Agency

About this bridge

SMA7743;OLD HWY 30 over Notus Canal is a prestressed concrete stringer/multi-beam or girder carrying SMA7743;OLD HWY 30 over Notus Canal in Canyon 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 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 2,100 vehicles a day, roughly 6% of them trucks, projected to reach 3,150 by 2042. The structure is 32 ft (9.8 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSMA7743;OLD HWY 30
CrossesNotus Canal
Location2.0 N. 0.1 W. Caldwell
RouteCounty Highway 7743
CountyCanyon County
StateIdaho
Coordinates43.69103, -116.69149
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2023)
Projected traffic3,150 by 2042
Trucks6%
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

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$56,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SMA7743;OLD HWY 30 over Notus Canal built?

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

What condition is SMA7743;OLD HWY 30 over Notus 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 SMA7743;OLD HWY 30 over Notus Canal carry?

About 2,100 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SMA7743;OLD HWY 30 over Notus Canal?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns SMA7743;OLD HWY 30 over Notus Canal?

It is owned by the Other Local Agency.