US Bridges

SH 33 over S.Fk.Leigh Creek

Good

Teton County, Idaho · 2.8 S. Tetonia · Structure no. 000000000013960

Built
1979
46 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
35 ft
1 main span
Daily traffic
5,600
2023 count
Owner
State
State Highway Agency

About this bridge

SH 33 over S.Fk.Leigh Creek is a concrete box beam or girders - multiple carrying SH 33 over S.Fk.Leigh Creek in Teton County, Idaho. It was built in 1979, so it is 46 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 5,600 vehicles a day, roughly 6% of them trucks, projected to reach 8,400 by 2042. The structure is 35 ft (10.7 m) long and 40 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSH 33
CrossesS.Fk.Leigh Creek
Location2.8 S. Tetonia
RouteState Highway 33
CountyTeton County
StateIdaho
Coordinates43.80336, -111.11103
Functional classRural Minor Arterial

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating33 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2023)
Projected traffic8,400 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$708,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 33 over S.Fk.Leigh Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is SH 33 over S.Fk.Leigh 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 July 2024.

How much traffic does SH 33 over S.Fk.Leigh Creek carry?

About 5,600 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 33 over S.Fk.Leigh Creek?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 40 ft wide.

Who owns SH 33 over S.Fk.Leigh Creek?

It is owned by the State Highway Agency.