US Bridges

Stc 6707; E 97th S over Sand Creek

FairPosted for load

Bonneville County, Idaho · 2.0 N. 0.75 E.Taylorville · Structure no. 000000000020775

Built
1969
56 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
910
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 6707; E 97th S over Sand Creek is a prestressed concrete tee beam carrying Stc 6707; E 97th S over Sand Creek in Bonneville 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 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. Its operating status is: posted for load restriction.

It carries about 910 vehicles a day, roughly 5% of them trucks, projected to reach 1,365 by 2042. The structure is 40 ft (12.2 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStc 6707; E 97th S
CrossesSand Creek
Location2.0 N. 0.75 E.Taylorville
RouteCounty Highway 6707
StateIdaho
Coordinates43.40997, -112.01989
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating36 US tons
Inventory rating15 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic910 (2023)
Projected traffic1,365 by 2042
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$528,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 6707; E 97th S over Sand Creek built?

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

What condition is Stc 6707; E 97th S 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 November 2023.

How much traffic does Stc 6707; E 97th S over Sand Creek carry?

About 910 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Stc 6707; E 97th S over Sand Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 36 ft wide.

Who owns Stc 6707; E 97th S over Sand Creek?

It is owned by the County Highway Agency.