HomeMy WebLinkAboutFile Documents.219 N Monarch St.0207.2019 (2).ARBKCone Section Opening Volume to Width of Depth of gravel Dia of Percent Concrete Cylinde Cone section Ht.
(ft) Detain (cf) Gravel (ft) Below M.H. (ft) M.H. Voids (%) Thickness (in) (ft)
2 14.7 1.0 1 4 30 5 2.0
Volume in gravel starts at: 7
Area of M.H. (sqft) 12.6
Area of Gravel (sqft) 18.3
Area of Concrete Cylinder (sq 5.78
Volume of 6" PCC Slab (sqft) 6.3
Volume of Gravel Bottom 36.7
Depth Volume of Vol of Gravel Vol of Drywell Vol of Drywell Vol of Total Volume
Varied Gravel Voids Conic Section Cyl. Section Drywell Volume Met
(ft) (cf) (cf) (cf) (cf) (cf) (cf)
1 0.0 0.0 0.0 0.0 0.0 0.0 no
2 0.0 0.0 33.5 0.0 33.5 33.5 Meets Min.
3 0.0 0.0 14.6 12.6 27.2 27.2 Meets Min.
4 0.0 0.0 14.6 25.1 33.5 33.5 Meets Min.
5 0.0 0.0 14.6 37.7 46.1 46.1 Meets Min.
6 0.0 0.0 14.6 50.3 58.6 58.6 Meets Min.
7 36.7 11.0 14.6 62.8 71.2 82.2 Meets Min.
8 55.0 16.5 14.6 75.4 83.8 100.3 Meets Min.
9 73.3 22.0 14.6 88.0 96.3 118.3 Meets Min.
10 91.7 27.5 14.6 100.5 108.9 136.4 Meets Min.
11 110.0 33.0 14.6 113.1 121.5 154.5 Meets Min.
12 128.3 38.5 14.6 125.7 134.0 172.5 Meets Min.
13 146.6 44.0 14.6 138.2 146.6 190.6 Meets Min.
Transmissivity Calc.
Depth of Gravel (ft)= 5
K from NRCS National Engineering Handbook, figure 3‐10, soil class GM
AP=(VR)/(K)(43,200)
AP=Total area of sides (sf)107.34
VR = runoff volume (cf)14.7
K= Hydraulic Conductivity (ft/s 0.000035
.
Area of Percolation Required 9.72
←UPPER CHAMBER
MEETS WQCV (14.7 CF)
219 N. MONARCH STREET
DRAINAGE STUDY DRYWELL CALCULATIONS
October 11, 2019 HCE #: 2171613.01
Drywell Calculations
Tele: (970) 945-8676 - Fax (970) 945-2555
Calculation of Drywell and Gravel
4' DIAMETER, 10' DEEP DRYW ELL
1517 BLAKE AVENUE
Glenwood Springs, CO 81601
Variables
10/16/2019
Reviewed by Engineering
10/28/2019 10:42:11 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.