Accelera'ng  Ac'on  –  Restora'on  of  the  Built  Environment  

25 in.

8 in.

12 in.

Evapora'on  

Infiltra'on  

Runoff  

Natural  Water  Balance  Philadelphia,  PA  

Altered  Water  Balance  Philadelphia,  PA  

Annual  Rainfall  

45 in.

Challenges  to  Change    

•  Local  Codes  and  Ordinances  •  Permit  Approvals  and  Timelines    •  Construc'on  Prac'ces  and  Knowledge  •  Maintenance    •  Aesthe'c  Expecta'ons      

   

 

Stroud  Water  Research:  Exis'ng  vs  Natural  Condi'ons  

Stroud  site  generated:  

•  3.03  million  gallons  per  year  MORE  runoff  

         (That  would  equal  14  feet  of  water  in  all  the  buildings)  

 •  1.52  million  gallons  

LESS  recharge  

   

 

Upper Portion of Site Mushroom House

•  Five Rain Gardens •  Infiltration Trench •  Level Spreader

Porous Paths

Meadow

Meadow

Level Spreader Green Roof

Lower Portion of Site New Moorehead Environmental Complex

•  Five More Rain

Gardens •  Green Roof •  Two Level

Spreaders •  Two Cisterns •  Meadows •  Porous Pavements

Rain Gardens/ Bioretention

Level spreaders and Porous Pavers

Cisterns Capture roof runoff for re-use in research facility

Drinking your water isn’t easy

Shoemaker  Green  Univers i ty  of  Pennsylvania  

Stormwater:  Tennis  Court  Storage  Bed  &  Designed  Soi ls  

Layer   %  Sand  

%  Silt  

%  Clay   Ks  (cm/day)  

Ks  (in/hr)  

S1   86.4   8.5   5.1   231.6   3.8  S2   87.3   9.5   3.2   281.6   4.6  S3   92.0   5.0   3.0   516.4   8.5   Image  by  Andropogon  

S t o rmwa t e r :   S u b s u r f a c e   e x i s ' n g   c o n d i ' o n s  

S t o r mw a t e r   P l a n  All  Overflow  Beyond  the  Site’s  Capacity  (at  least  the  first  inch  of  runoff)  is  Directed  to  the  Storm  Sewer  

Image  by  Andropogon  

Stormwater:  Rain  Garden  

Delaware Riverkeeper Network Van Sciver School Bioretention Area at Saddlers Woods

Constructed Plan

Constructed Plan

To Saddlers Woods

Flow After Torrential Storm- Video

Van Sciver School Bioretention Area at Saddlers Woods

Van Sciver School Bioretention Area at Saddlers Woods

Van Sciver School Bioretention Area at Saddlers Woods

Challenges to Change •  Local Codes and Ordinances •  Permit Approvals and Timelines •  Construction Practices and Knowledge •  Maintenance •  Aesthetic Expectations