Big Trout Lake Stormwater Management Design Project By Hannah Rollin Problem Valuable Trout Lake for the state of Minnesota Excess sediment and stormwater flows directly into.
Download ReportTranscript Big Trout Lake Stormwater Management Design Project By Hannah Rollin Problem Valuable Trout Lake for the state of Minnesota Excess sediment and stormwater flows directly into.
Slide 1
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 2
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 3
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 4
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 5
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 6
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 7
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 8
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 9
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 10
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 11
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 12
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 13
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 14
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 15
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 16
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 2
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 3
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 4
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 5
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 6
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 7
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 8
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 9
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 10
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 11
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 12
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 13
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 14
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 15
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?
Slide 16
Big Trout Lake
Stormwater
Management Design
Project
By Hannah Rollin
Problem
Valuable Trout Lake for the state of Minnesota
Excess sediment and stormwater flows directly
into the lake due to the current curb and
gutter system and the culvert
Increasing temperature of the lake and
decreasing the clarity
Constraints
Limited land area available
Snowmobile route
Steep slopes (instability)
Field Assessment
Surface and groundwater measurements
Temperature
Salinity
Soil type assessment
General land type observations
Proposed Solution
Use a vortex separator to remove sediment from the
stormwater
Downstream Defender®
The vortex system forces particles to settle into the sump
Efficient and easy to maintain
Small footprint
System of Perforated Pipes
Infiltration of stormwater will aid in temperature reduction
Watershed and Drainage
Assessment
Delineate the watershed in GIS
Calculate drainage area:
Grass/Vegetated area: 167,277ft2
Paved area: 156,722 ft2
Calculate runoff from precipitation data
37,040 ft3
Final Design
Two 4ft Downstream Defenders (each
can handle 8cfs)
12 perforated pipes, 2ft in diameter
Next Steps
Research possibility of installing larger pipes for
larger storage volume
Survey elevations to calculate gradients of
pipes
Cost analysis
Questions?