US Bridges

Forest Road 30100 over South Fk. Spread Ckeek

Fair

Teton County, Wyoming · 12 Mi. Se. of Moran Wy · Structure no. 040306000001057

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
60 ft
1 main span
Daily traffic
100
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road 30100 over South Fk. Spread Ckeek is a steel continuous stringer/multi-beam or girder carrying Forest Road 30100 over South Fk. Spread Ckeek in Teton County, Wyoming. It was built in 1971, so it is 54 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 100 vehicles a day, projected to reach 150 by 2045. The structure is 60 ft (18.3 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesForest Road 30100
CrossesSouth Fk. Spread Ckeek
Location12 Mi. Se. of Moran Wy
RouteFederal Lands Road 30100
CountyTeton County
StateWyoming
Coordinates43.76128, -110.3223
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span54 ft (16.4 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (—)
Projected traffic150 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$180,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Road 30100 over South Fk. Spread Ckeek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Forest Road 30100 over South Fk. Spread Ckeek 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 October 2023.

How much traffic does Forest Road 30100 over South Fk. Spread Ckeek carry?

About 100 vehicles per day (latest count).

How long is Forest Road 30100 over South Fk. Spread Ckeek?

The structure is 60 ft (18.3 m) long with a longest span of 54 ft (16.4 m) and a deck 27 ft wide.

Who owns Forest Road 30100 over South Fk. Spread Ckeek?

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