US Bridges

Stc 1851; 1300 N over Little Sand Creek

Fair

Bingham County, Idaho · 2.5 E. Shelley · Structure no. 000000000019310

Built
1968
57 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
1,500
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 1851; 1300 N over Little Sand Creek is a prestressed concrete tee beam carrying Stc 1851; 1300 N over Little Sand Creek in Bingham County, Idaho. It was built in 1968, so it is 57 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 1,500 vehicles a day, roughly 9% of them trucks, projected to reach 2,250 by 2042. The structure is 42 ft (12.8 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStc 1851; 1300 N
CrossesLittle Sand Creek
Location2.5 E. Shelley
RouteCounty Highway 1851
StateIdaho
Coordinates43.38125, -112.07459
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
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 typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic2,250 by 2042
Trucks9%
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

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 Stc 1851; 1300 N over Little Sand Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Stc 1851; 1300 N over Little Sand Creek 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 Stc 1851; 1300 N over Little Sand Creek carry?

About 1,500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Stc 1851; 1300 N over Little Sand Creek?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 36 ft wide.

Who owns Stc 1851; 1300 N over Little Sand Creek?

It is owned by the County Highway Agency.