US Bridges

SH 31 over Trail Creek;victor Br

Fair

Teton County, Idaho · 0.3 S. Victor · Structure no. 000000000013856

Built
1996
29 years old
Condition
Fair
inspected September 2022
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
6,200
2023 count
Owner
State
State Highway Agency

About this bridge

SH 31 over Trail Creek;victor Br is a concrete frame carrying SH 31 over Trail Creek;victor Br in Teton County, Idaho. It was built in 1996, so it is 29 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 6,200 vehicles a day, roughly 4% of them trucks, projected to reach 9,300 by 2042. The structure is 22 ft (6.7 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 31
CrossesTrail Creek;victor Br
Location0.3 S. Victor
RouteState Highway 31
StateIdaho
Coordinates43.6025, -111.11964
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 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 alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2023)
Projected traffic9,300 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 31 over Trail Creek;victor Br built?

It was built in 1996, making it 29 years old in 2025.

What condition is SH 31 over Trail Creek;victor Br 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 September 2022.

How much traffic does SH 31 over Trail Creek;victor Br carry?

About 6,200 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SH 31 over Trail Creek;victor Br?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 51 ft wide.

Who owns SH 31 over Trail Creek;victor Br?

It is owned by the State Highway Agency.