20220737 Ver 1_Stormwater Infiltration Basin Details #3_20220606

\l/ Pt -
III/ ZIP
m
z�
Coastal Wetlands
Line(TYp•)
--..e%•.� •• �. ;5L _—..—.. Sf�===:� =`�_ ...�I[ 404Wetlands
404 Wetlands " ` CL
30' CAMA Buffer � Line T � � � �lNb"W: ._ ..� .. � y .. � .IV
_ : �' :;rss ...r r \ , - ' • \ • \ Line (Typ.)
Line (TYP•) •,-PIPE, antItt :-- _ ..• . •41 as
� i�• 3'•� ... s€- • '— CL % / 3-� C=M sp • \ \
Uffer
PtF
r' \ \\ r. \
0000' IF, to Fammos
500
..... .:,
�1 x "•..
Coastal Wetlands .•�-• �,`',� ,,....... �.....:.... \ \\ \ sp .\ �iC,•\.
\IF \
..�
y // Infiltration Basin
by Bottom Elev.4.50 Drainage \ ��
i i a Utility \ \ \
. , �+� - F`FFF._ — — — — — _ 350' Overflow Inv. Out - Easement / \ \ -
Inv. OutFOOF"1 Spillway At Elev. 5,50 4.50 (width varier) �/ �
4,50 /
oFoe
5.50
� 5.0 5.0 .� .>,
— — — — — — — — — — — — — — — — — — — — —.�— — — — — — — — — — — — — — — — — — — — — — — — — — — — — V..
\ � 4:1 Slopes, ' Skimmer For Erosion Control —� — — ip / \V
/ i \ \ This Infiltration Basin Only i mage ( ing Initial
Utility Easement Land rDisturbance /•
_ \
30 31 /
Infiltration Basin #3
Scale: 1"=20'
0 20 40 60 _
FEET
Notes:
1. Notify Engineer 48 hours prior to beginning construction.
2. The Infiltration Basin requires inspection during construction
by the certifying Engineer and upon completion requires a -
Certification of Construction letter issued to the North - - - - - -
Carolina Division of Water Quality by a North Carolina - - -
Professional Engineer. - -
All cut slopes
3. It is the intent of the design that the sediment traps be - 8' Min. Berm Width - to basin bottom
At Overflow Spillway to have grass sod
installed in the same locations as the Infiltration Basins, then 1.0' Freeboard --
upon stabilization of the upslope areas, the sediment shall be -
removed and the Infiltration Basin graded to its final design.
4. Excavate and grade the side slopes and bottom of the basin To Elev. 6.50 /- �'• to size and elevations shown on plan. Water Quality Volume - / Spillway Elev. 5.50
5. Contractor shall measure basin to ensure correct size. to All fill singes
pipes, pipes P to have grass sod txng gradeti Ex•• 5IQPe'..—.vari�
6. Install inlet i es, all sediment in i es to be removed prior g 1.0' Maximum
to final certification. i"-"' Water Depth hti
" 7. Contractor shall contact Engineer to verify/approve basin 4" Min. Clean Sand Inlet Pipe
construction prior to seeding or sodding. - - (1-2 % fines or less) -
8. Sod cut and fill slopes with centipede or bermuda sod -
9. See plans for required basin sizes and elevations. Grade •� - -
Ex.6i- Bottom Elev. 4,50
10. For additional information, see Stormwater Management Permit. "
_ - - - 12' Min. 12" Min. Undisturbed In -Situ Soil .. -
Seasonal High Water Table Elev. 2.50 ...
Infiltration Basin Typical Section
Not to scale Infiltration Basin #3 Detail Sheet
011511111#p,,,
.•���,tN.... goy BRI DGE VIEW �OPOFasSid •4;i••y�•.
Q r9�
SEAL Town of Cedar Pointy Carteret County, North Carolina
`.E 37928 c i _
O ;LP�Owner/Developer.
Poe 9j2�q� Cedar Point Developers, LLC
N ,,rNa'L MG
ttt 0 %%%% 166 Center Street
Jacksonville, North Caroline 28546
[phone] .. .
DATE: 08/20/2021
SCALES As Noted
BELL AND PHILLIPS
Coco: 20779.erd Consulting Engineers - Land Surveyors - Land Planners
_ - - Filename: BridgeView-ESC CAD.dwB - Cedar Point, North Carolina
< Drawn By: AS 604E Cedar Point Boulevard
Job No.: S200 e G Phone [phone]- www.BellandPhilli s com
"Job No.: S200316-7321 Sheet 1v Of 18 Firm License Number. F-0108 P