US Bridges

SH 33 over Teton Creek

Fair

Teton County, Idaho · 1.1 S. Driggs · Structure no. 000000000013965

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
2 main spans
Daily traffic
11,500
2023 count
Owner
State
State Highway Agency

About this bridge

SH 33 over Teton Creek is a prestressed concrete box beam or girders - multiple carrying SH 33 over Teton 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 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 11,500 vehicles a day, roughly 6% of them trucks, projected to reach 17,250 by 2042. The structure is 54 ft (16.5 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
CrossesTeton Creek
Location1.1 S. Driggs
RouteState Highway 33
CountyTeton County
StateIdaho
Coordinates43.70822, -111.11056
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJuly 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 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 rating83 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span26 ft (7.9 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic17,250 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$903,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 33 over Teton Creek built?

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

What condition is SH 33 over Teton 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 July 2024.

How much traffic does SH 33 over Teton Creek carry?

About 11,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 33 over Teton Creek?

The structure is 54 ft (16.5 m) long with a longest span of 26 ft (7.9 m) and a deck 40 ft wide.

Who owns SH 33 over Teton Creek?

It is owned by the State Highway Agency.