US Bridges

Sand Creek RD over ST Anthony Canal

Fair

Fremont County, Idaho · 0.9 N. 1.4 E. ST Anthony · Structure no. 000000000032210

Built
1978
47 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
340
2023 count
Owner
County
County Highway Agency

About this bridge

Sand Creek RD over ST Anthony Canal is a prestressed concrete box beam or girders - multiple carrying Sand Creek RD over ST Anthony Canal in Fremont County, Idaho. It was built in 1978, so it is 47 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 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 340 vehicles a day, roughly 10% of them trucks, projected to reach 510 by 2039. The structure is 51 ft (15.5 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSand Creek RD
CrossesST Anthony Canal
Location0.9 N. 1.4 E. ST Anthony
RouteCounty Highway 0
CountyFremont County
StateIdaho
Coordinates43.97247, -111.65378
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2023)
Projected traffic510 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$446,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sand Creek RD over ST Anthony Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is Sand Creek RD over ST Anthony 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 November 2023.

How much traffic does Sand Creek RD over ST Anthony Canal carry?

About 340 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sand Creek RD over ST Anthony Canal?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.

Who owns Sand Creek RD over ST Anthony Canal?

It is owned by the County Highway Agency.