US Bridges

STC6732;OLD HWY 91 over Beaver Creek

Good

Jefferson County, Idaho · 5.0 N. 1.0 W. Hamer · Structure no. 000000000032610

Built
1963
62 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
39 ft
1 main span
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

STC6732;OLD HWY 91 over Beaver Creek is a concrete stringer/multi-beam or girder carrying STC6732;OLD HWY 91 over Beaver Creek in Jefferson County, Idaho. It was built in 1963, so it is 62 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 58% of them trucks, projected to reach 450 by 2042. The structure is 39 ft (11.9 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSTC6732;OLD HWY 91
CrossesBeaver Creek
Location5.0 N. 1.0 W. Hamer
RouteCounty Highway 6732
StateIdaho
Coordinates43.99514, -112.23061
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic450 by 2042
Trucks58%
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

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 STC6732;OLD HWY 91 over Beaver Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is STC6732;OLD HWY 91 over Beaver Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does STC6732;OLD HWY 91 over Beaver Creek carry?

About 300 vehicles per day (2023 count), of which roughly 58% are trucks.

How long is STC6732;OLD HWY 91 over Beaver Creek?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 46 ft wide.

Who owns STC6732;OLD HWY 91 over Beaver Creek?

It is owned by the County Highway Agency.