US Bridges

Fdr 30500 over Little Granite Creek

Good

Teton County, Wyoming · T39N R113W S 34 · Structure no. 040304000003059

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Frame
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
450
2018 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 30500 over Little Granite Creek is a prestressed concrete frame carrying Fdr 30500 over Little Granite Creek in Teton County, Wyoming. It was built in 2000, so it is 25 years old, younger than the Wyoming average of 48.4 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 450 vehicles a day, roughly 10% of them trucks, projected to reach 675 by 2045. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesFdr 30500
CrossesLittle Granite Creek
LocationT39N R113W S 34
RouteFederal Lands Road 30500
StateWyoming
Coordinates43.29777, -110.51812
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating25 US tons

Structure

Structure typeFrame
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2018)
Projected traffic675 by 2045
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 30500 over Little Granite Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Fdr 30500 over Little Granite 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 September 2024.

How much traffic does Fdr 30500 over Little Granite Creek carry?

About 450 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Fdr 30500 over Little Granite Creek?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Fdr 30500 over Little Granite Creek?

It is owned by the U.S. Forest Service.