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NURP Pond Design
POND #2 NURP DESIGN - POND # 2 PROJECT: PIONEER PASS PROJ. NO.: 21996-01 CLIENT: PIONEER PASS, LLC LOCATION: CHANHASSEN, MN COMPo DATE: 08-17-06 NURP POND DESIGN INPUT DATA TOTAL WATERSHED AREA (ACRES): 23.97 TOTAL IMPERVIOUS AREA DIRECTLY CONNECTED TO STORM SEWER: 5.5 AREA WEIGHTED MEAN SCS CURVE NUMBER: 67 DESIGN STORM SIZE (INCHES): 2.5 NURP POND DESIGN OUTPUT PARAMETERS IMPERVIOUS FRACTION: 22.95% MAXIMUM SOIL RETENTION (INCHES) 4.93 DESIGN STORM RUNOFF (INCHES): 0.85 MIN. REQUIRED WET VOLUME STORAGE (NURP) VOLUME (ac-ft): 1.69 DESIGNED WET VOLUME STORAGE (NURP) VOLUME (ac-ft): 2.82 REQUIRED MPCA PERMANENT VOLUME (1800FT^3/AC) (ac-ft): 0.99 Method of calculation is taken from "DESIGN CALCULATIONS FOR WET DETENTION PONDS" by William W. Walker, October, 1987. Page 1 NURP DESIGN - POND # 6 PROJECT: PIONEER PASS PROJ. NO.: 21996-01 CLIENT: PIONEER PASS, LLC LOCATION: CHANHASSEN, MN COMPo DATE: 08-17-06 NURP POND DESIGN INPUT DATA TOTAL WATERSHED AREA (ACRES): 5.03 TOTAL IMPERVIOUS AREA DIRECTLY CONNECTED TO STORM SEWER: 1.8 AREA WEIGHTED MEAN SCS CURVE NUMBER: 67 DESIGN STORM SIZE (INCHES): 2.5 NURP POND DESIGN OUTPUT PARAMETERS IMPERVIOUS FRACTION: 35.79% MAXIMUM SOIL RETENTION (INCHES) 4.93 DESIGN STORM RUNOFF (INCHES): 1.12 MIN. REQUIRED.WET VOLUME STORAGE (NURP) VOLUME (ac-ft): 0.47 DESIGNED WET VOLUME STORAGE (NURP) VOLUME (ac-ft): 1.44 REQUIRED MPCA PERMANENT VOLUME (1800FT^3/AC) (ac-ft): 0.21 Method of calculation is taken from "DESIGN CALCULATIONS FOR WET DETENTION PONDS" by William W. Walker, October, 1987. NURP DESIGN - POND # 7 PROJECT: PIONEER PASS PROJ. NO.: 21996-01 CLIENT: PIONEER PASS, LLC LOCATION: CHANHASSEN, MN COMPo DATE: 08-17-06 NURP POND DESIGN INPUT DATA TOTAL WATERSHED AREA (ACRES): 7.01 TOTAL IMPERVIOUS AREA DIRECTLY CONNECTED TO STORM SEWER: 1.62 AREA WEIGHTED MEAN SCS CURVE NUMBER: 67 DESIGN STORM SIZE (INCHES): 2.5 NURP POND DESIGN OUTPUT PARAMETERS IMPERVIOUS FRACTION: 23.11 % MAXIMUM SOIL RETENTION (INCHES) 4.93 DESIGN STORM RUNOFF (INCHES): 0.85 MIN..REQUIREDWET VOLUME STORAGE (NURP) VOLUME (ac-ft): 0.50 DESIGNED WET VOLUME STORAGE (NURP) VOLUME (ac-ft): 1.37 REQUIRED MPCA PERMANENT VOLUME (1800FT^3/AC) (ac-ft): 0.29 Method of calculation is taken from "DESIGN CALCULATIONS FOR WET DETENTION PONDS" by William W. Walker, October, 1987.