Bioretention Proposal For Everson Museum of Art

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Bioretention Proposal For Everson Museum of
Art Charles Martin, Jill Crispell Dr. T.
Endreny. FEG 340 Engineering Hydrology
Hydraulics Course, 207 Marshall Hall, SUNY
College of Environmental Science and Forestry,
Syracuse, NY 13210
Design Findings Some formulas that were used are
the NRCS Curve Number Method, The Green and Ampt
Infiltration Model, and the Manning equation.
For my filtering material I used loamy sand.
(Wurbs)

• Background Information
• The stormwater goal for this project is to filter
  out pollutants in storm waters in the plaza at
  Everson and control runoff. Another goal is to
  reduce garbage in the water. To do this we must
  use a bioretention that can be incorporated into
  an existing facility. It needs to capture water
  in a 24-hr duration 2-yr recurrence interval
  storm of a depth of 6.8. It needs to pond water
  in a depth of 15 cm and the water must infiltrate
  every 6 hours and be reset. Vegetation and
  microbes must be present. After the water filters
  through the soil, it will then run into a storm
  drain via a pipe.
• An alternative design would be a storm drain
  directly to a water treatment plant. Another
  alternative design would be to remove all the
  concrete and replace it with grass. The
  bioretention basin would be the best because it
  would naturally remove pollutants without the
  need for expensive water treatment and it would
  not involve tearing up all the concrete. In order
  to produce the area for the bioretention basin,
  one must first figure out the total area for the
  sub watershed. Then with that the runoff volume
  can be calculated to determine the dimensions of
  the bioretention basin. After the stormwater
  infiltration is calculated, the discharge into
  the pipes under the basin and their dimensions
  can also be calculated.
• This design will remove the existing pool at the
  Everson Museum of Art and replace it with a new
  pool with vegetation. The current pool has an
  abundance of garbage in it. With the bioretention
  basin, it will be dry and easily cleaned up. It
  will expand the plaza so you can add more art
  work to it. Under it the bioretention, there is a
  6in PVC pipe to drain the water to a storm drain.
  This design was found to be able to control and
  store runoff effectively.
• DESIGN GOALS
• Filter out pollutants from the stormwater system
• Regulate Runoff
• Add Vegetation
• Reduce litter

DESIGN CONSTRAINTS Must be a bioretention
basin Must be able to contain a rainfall depth of
6.8cm for a 24-hr 2-yr event Must be tied into a
storm system Must pond water for the designed
event to 15cm Must infiltrate water every 6-hr
period Must include vegetation
Green and Ampt Model
Location Characteristics Located at the Everson
Museum of Art Paved Plaza with art work and
sculptures in it 7 in deep pool in middle
Curve Number Method
Manning Equation
Figure 4 Cross-Sectional Area of Bioretention
Basin
Figure 2 Aerial Photograph of Site
Design Alternatives Two alternative designs would
be to have the stormwater run directly into a
storm drain or to remove most of the concrete and
replace it with grass. These would not be viable
options. With the storm drain you will need to
run the water off to a water treatment plant to
be sanitized. In addition the existing pool would
be difficult to clean up. The removal of the
concrete from this site would be costly and would
have drastic change on the areas appearance. Then
it would also be costly To plant grass seed or
sod on the site.
Conclusion The bioretention basin would be the
best alternative because it would be the most
effective and the cleanest one. It would filter
the storm water naturally, reducing costs by
eliminating the need for the stormwater to go to
a water treatment facility. The runoff would be
effectively regulated by creating a storage area.
It would add vegetation to the middle of the
plaza, making it more attractive. The existing
pool area which will not be used for the
bioretention will be raised up and will have
concrete laid on it. The expansion of the
concrete areas will allow for more art work to be
placed there. When the bioretention area dries
up, the removal of litter will much less
difficult. The material for the drainage will be
loamy soil. Underneath that soil will be a 6 in
diameter PVC pipe that will drain the water in a
storm water network.
References Wurbs, Ralph A., Wesley P. James.
Water Resources Engineering. Prentice Hall, New
Jersey 2002. Chapter 4 and 8.
Figure 3 Vegetative Bioretention Swale
cross-section
Figure 1 Location of Site