Rehabilitation of Flat Creek, Teton County, Wyoming;

Planning, design and implementation

A cooperative effort between:Trout Unlimited, Jackson Hole Chapter

Teton Conservation DistrictTown of Jackson

Teton CountyWyoming Game and Fish Department

HabiTech, IncOthers

Project Goal

Reduce icing and winter flooding of Flat Creek through stream improvements which allow the creek to approach its

fisheries and ecological potential

Project Tasks

PHASE 1:Conduct a planning and feasibility study to determine the aquatic habitat limitations of Flat Creek and recommend likely concepts and strategies for rehabilitation;

PHASE 2:Conduct a detailed siting and design study leading to the recommendation of specific rehabilitation treatments and the submittal of necessary

documents to the appropriate state and federal agencies for permitting purposes;

PHASE 3:Implement the recommended and permitted rehabilitation treatments and provide a post implementation evaluation.

Project Priorities

1. Winter icing and flooding;

2. Discontinuing thaw well use and not adding additional thaw wells;

3. Storm water runoff storage in stream banks and sediment load management;

4. Fish habitat

Project Priorities

Project Priorities

What’s been done to date?

• Completion of 2 reaches• Monitored & Analyzed Results on first 2 reaches

– 1st reach flood– 2nd reach with stood coldest winter in recent history

• Preliminary design of Karnes Meadow Reach • Site specific survey and hydraulic modeling• Development of improvement concepts

Reach #1Downstream of Hwy 191 to High School Road

Reach #1Downstream of Hwy 191 to High School Road

Reach #1Downstream of Hwy 191 to High School Road

Reach #1Downstream of Hwy 191 to High School Road

Reach #1Downstream of Hwy 191 to High School Road

• No Frazil ice production during extreme cold (-10°F)• Surface Ice Formation

Reach #1Downstream of Hwy 191 to High School Road

• Flood• What did we learn• Will it happen again

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #2 Downstream of Saddle Butte Bridge to Hwy 191

Reach #3 Karnes Meadow

Reach #3 Karnes Meadow