SW6211206_Supplement-EZ Form_20220314

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
rOJECT INFORMATION
1 Project Name Baywood Terrace Subdivision
2 Project Area ac
3 Coastal Wetland Area (ac)
4 Surface Water Area ac
5 Is this project High or Low Density?
6 1 Does this project use an off -site SCM?
OMPLIANCE WITH 02H .1003(4)
_7N/A
_ Width of vegetated setbacks provided (feet) _
8 Will the vegetated setback remain vegetated?
9 if SLIA is proposed in the setback, does it meet NCAC 02H.I003 4 c-d ?
10 Is streambank stabilization proposed on this project? No
10.35
0
Law
No
NIA
NiA
NUMBER AND TYPE OF SCMs:
11 1 Infiltration System
12 Bioretention Cell
13 Wet Pond — --
14 Stormwater Wetland
15 Permeable Pavement
16 Sand Filter
17 Rainwater Harvesting (RWH
18 Green Roof
19 Level Spreader -Filter Strip LS-FS
20 Disconnected Impervious Surface DIS
21 Treatment Swale
22 Dry Pond
23 SLormFilter
24 Silva Cell
25 Ba finer
26 Filterra
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Gege M. Rose, DesIgn Engineer
28 Organization: George M. Rose, P.E.
29 Street address: P.O. Box 53441
30 City, State, Zip: Fayetteville, NC 28305
31 Phone numbers : 910-977-5822
32 Email: [e-mail]
Certification Statement:
I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the
information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans,
specifications, operation and maintenance agreements and other supporting information are consistent with the information provided here.
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FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: Gege M. Rose, DesIgn Engineer
28 Organization: George M. Rose, P.E.
29 Street address: P.O. Box 53441
30 City, State, Zip: Fayetteville, NC 28305
31 Phone numbers : 910-977-5822
32 Email: [e-mail]
Certification Statement:
I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the
information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans,
specifications, operation and maintenance agreements and other supporting information are consistent with the information provided here.
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Signature 7"igner
Certification Statement:
I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or supervision; that the
information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that the engineering plans,
specifications, operation and maintenance agreements and other supporting information are consistent with the information provided here.
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DRAINAGE AREAS
1
Is this a high density project?
No
2
If so, number of drainage areasISCMs
0
3
Does this project have low density areas?
Yes
4
If so, number of low density drainage areas
1
5
Is alllpart of this project subject to previous rule
versions?
No
CLICK TO LOAD FORM
DRAINAGE
4
AREA INFORMATION
Type of SCIVI
j Entire Site
450,840
450,840
0
100092 sf
LD1
LD 2
5
Total draina a area (sq ft
450,840
6
Onsite drainage area (sq ft
450,840
7
Offsite drainage area (sq ft
0
8
Total BUA in project (sq ft
100092 sf
77880 sf
9
New BUA on subdivided lots (subject to permitting)
(sq ft
77880 sf
10permitting)
New BUA not on subdivided lots (subject to
so
22212 sf
22212 sf
11
Offsite BUA (sq ft)
sf
sf
12
Breakdown of new BUR not on subdivided lots:
Parkin s ft)
sf
sf
Sidewalk (sq
sf
sf
- Roof (sq ft
sf
sf
Roadway s ft
22212 sf
22212 sf
Future (sq ft
sf
sf
- Other, please specify in the comment box
below (sq ft
13
New infiltrating permeable pavement on
subdivided lots (sq ft
sf
sf_
14
New infiltrating permeable pavement not on
subdivided lots (sq ft
sf
sf
15
Existing BUA that will remain (not subject to
permitting) (sq ft)
sf
sf
16
1 Existing BUA that is already permitted (sq ft
sf
sf
17
Existing BUA that will be removed (sq ft
sf
sf
18
Percent BUA
22%
22%
19
Design storm inches
1.0 in
1.0 in
20
Design volume of SCM cu ft
NIA
NIA
21
Calculation method for design volume
NIA
NIA
ADDITIONAL INFORMATION
22
Please use this space to provide any additional information about the
drainage area(s):

LOW DENSITY
DESIG-N
REQUIREMENTS FOR LOW DENSITY PROJECTS F OM 02H .1003
Is project below density thresholds set forth in the applicable stormwater rule?
Yes
1
2
Does project maximize dispersed flow and minimize channelization of flow?
Yes
3
Has the use of piping been minimized per .1003(2)(c)?
Yes
4
Side slopes of the vegetated conveyances (H:V)
3:1 and 4:1
5
Maximum velocity in the vegetated conveyances during the 10-year storm?
1.6
6
Are curb outlet swales proposed?
No
7
Maximum longitudinal slope of curb outlet swale(s) (%)
a
Bottom width of curb outlet swale(s) (feet)
9
Maximum side slope of curb outlet swale(s) (H:V)
10
Minimum length of curb outlet swale(s) (feet)
11
Are treatment swales used instead of curb outlet swales?
12
Is stormwater released at the edge of the setback as dispersed flow?
Yes
13
Have stormwater outlets been designed to prevent downslope erosion?
Yes
14
Are variations to rule .1003 proposed?
No
ADDITIONAL INFORMATION
15
1 Please use this space to provide any additional information about this low density project:
Swale #1 is the roadside ditch on the west sloe of Baywood Terrace Drive. Swale#2 is the roadside ditch on the east side
of Baywood Terrace Drive.
Swale
#
Drainage
Area
LL
BUA
(ac)
Pervious
area
ac
C
Q
(cfs)
Slope
N
V,,,o
(fps)
V,n ,,
(fps)
Flow depth
(ft)
1
2.64
1.15
1.49
0.47
1 9.90
0.20
3.00
1.50
1.39
2
2.44
1.15
1.29
0.50
1 9.70
0.20
3.00
1.50
1.39
3
4
9
7
g i
9
10
11
— —
12
13
14-
15
16
17
18
19
_
20
_
21
22
23
24
25
26
27