US Bridges

Stc 1843;E 800 N over Sand Creek

Fair

Bingham County, Idaho · 0.5 N. 2.3 E. Firth · Structure no. 000000000019260

Built
1982
43 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
550
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 1843;E 800 N over Sand Creek is a steel stringer/multi-beam or girder carrying Stc 1843;E 800 N over Sand Creek in Bingham County, Idaho. It was built in 1982, so it is 43 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 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 550 vehicles a day, roughly 8% of them trucks, projected to reach 825 by 2042. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesStc 1843;E 800 N
CrossesSand Creek
Location0.5 N. 2.3 E. Firth
RouteCounty Highway 1843
StateIdaho
Coordinates43.31147, -112.14003
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2023)
Projected traffic825 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 1843;E 800 N over Sand Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Stc 1843;E 800 N over 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 March 2024.

How much traffic does Stc 1843;E 800 N over Sand Creek carry?

About 550 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Stc 1843;E 800 N over Sand Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 40 ft wide.

Who owns Stc 1843;E 800 N over Sand Creek?

It is owned by the County Highway Agency.