SW7080704_APPROVED PLANS_20091203

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
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YYYYMMDD
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ITE OIL
ROANOKE ISLAND "V/,��
DARE COUNTY, NC
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CROATAN SOUND
ROANOKE SOUND
US 64/264
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TOWN OF NAGS HEAD
U.S. 6 SIR WALTER
SHALLOWBAG
MANNS HARBOR BRIDGE RALEION ST. BAYBOWSERTOWN
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MANTEO,NC 27954
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VIRGINIA DARE MEMORIAL BRIDGE
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GENERAL NOTES
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PROJECT: BOWSERTOWN LANDING RESIDENTIAL DEVELOPMENT
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TOWN OF MANTEO
P.O. BOX 246
MANTEO, NC 27954
PIN 9789-06-48-7676
D.B. 785 PG. 634
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DARE COUNTY AFFORDABLE HOUSING PROJECT
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SUBJECT PROPERTY: A 5.74 ACRE TRACT LOCATED ON ROANOKE ISLAND AT 170 SOUTH CALIFORNIA ' Io
LANE, MANTEO NC 27954. SUBJECT PROPERTY FURTHER DESCRIBED AS HAVING DARE COUNTY PINS ! _ \ / �\
9798-06-47-0843 ALSO DEPICTED ON A PLAT RECORDED IN P.C. G SL. 101 AND DEED RECORDED
AT D.B. 1653 PG. 14, ROANOKE ISLAND, DARE COUNTY, NORTH CAROLINA
'solL BORE ea p1 ; ,/'�`.`. 4'F`�i,�9`•�
pR011NO ELEVATION - 3.0' .. i G
OWNER/APPLICANT: DARE COUNTY ! ; pppUREPoftr 10 B s -
as / ,AFP711 TER (C) 28 , ,: r" ,' \, ��1, r ♦\
NOW OR FORMERLY \ / WATER ELEVATION -1-0. Y, �} ♦` lc;
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! . / / + I �� EFERENCE TABLE Y♦, J / ♦,
ROBERT OUTTEN, COUNTY MANAGER i' ��;' !, STATE AT NORTH CARICE SkME \ \
P.O. BOX 1000, MANTEO, NC 27954 '' I c13 STATE SERVI PROPERTY CENTER
\' '' / � 7 � "� ' \• 9 ♦♦ m
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1321 MAIL SERV CENTER GE
! RALEIGH. NC R7699 \ / r '/ �♦ `♦ 4\ `
PIN 9789-06-48-0032 \ / ? r / ' '� ♦ 9y .♦
PROJECT LOCATION: 170 SOUTH CALIFORNIA STREET, ROANOKE ISLAND, DARE COUNTY, NC / 4P;'' BOAT RAMP AND PARKING AREA /
Al i, : ,cmpci!"' ;
LATITUDE: 35'53'55" N 075'41'02" W a0°N i P.o GOSL.?41
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i \ ; P f I /. I r, ___._.,. D.B. 1025 PG. 0603 \- _ _ "S /r /
' _ : r ✓ /CLEARING UMITS ♦\ \'♦
t� ♦i! GP?�i is :* � n20 L.F. 121 is ". : i' � r• � � ' �.. d. �� '♦ :� Z
SITE AREA SUMMARY: CULVERT w/ FEs
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♦ '� n �� �' . �� n•'•. � v .,,, ,, "�,. \ � / �, SWALE t }� ` ., \'!�' '`, ` O
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TOTAL TRACT AREA = 250,035 SQ. FT. (5.74 AC.) / ° ' FLL uMlTs 2.50'
TOTAL TRACT AREA LESS 22' RIGHT OF WAY (S. CALIFORNIA LN.) = 243,932 SQ. FT. (5.60 AC.) '' % FlLL TO 4.0' ;' S, , ! r , a 0 OL
;r // Z r� ♦\ G:' ., 1 h- 0�•/8• SILT FENCE \ , /' r , , `, ♦` \ \\`+{� ♦,\ •,z_'•,,,\ N (n
(RIGHT OF WAY FROM EDGE OF MAINTENANCE TO EDGE OF MAINTENANCE ON ROADWAY) / optP� ' p : ;' .' / f� DOWNSPOUT ERO RATEION ;4 \,
,i / O GP}!. r, I , BASIN 2 7, Pam`'........,LLI
AREA OF ACOE JURISDICTIONAL WETLANDS = 119.299 SO. FT. (2.74 AC.) /,�G : ♦ -- NSTALL LEVEL AT INV 3
FT. 2.86 AC. ✓ r ,� ..... ` �5.' <,�.\\ ?ir�:� - i ✓ 8"I CONTECH PERFORATED BRAIN '',,•t'
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TOTAL TRACT AREA LESS 22' RIGHT OF WAY AND WETLANDS - 124,633 SO. ( ) WITH c€oTExnLE 5oq( \ >
`♦C... �. ' ♦ ♦ a. !, ' . ♦ '3j'L BORE Bl
/ Q' ,., ♦ , - `:,,♦ ♦ r• i �.♦; ♦ ♦ _ •• a GR(lU ELEVATION 3.0'
V i;' ♦ ;: yy �'>-'/ % ♦'♦ ` `�P. DEPTH TO WATER (BOS) - &46' - ,>� 1 /' ` ,' SILT FENCE .✓'� l.-t
PROPOSED DEVELOPMENT SUMMARY: wREFR ENCE TAN
N LANDING RESIDENTIAL DEVELOPMENT IS BEING DEVELOPED AS AN /tip ;' ' ♦ _ Y y '
BOWSERTOW L ` r � •� , ` a'in SEAIEER�ORT�1094 0a-097 ,✓ ♦\ 4 LF. 121 HOPE
-WORKFORCE HOUSING PROJECT BY DARE COUNTY WITH COOPERATION OF THE OUTER / " SOIL BORE BS
;s �, .. �: GROUND ELEVATION - 3.0' ' �. fL' I ,'r!P
AFFORDABLE -WO // ; / s,; r SWALE 7 \ DEPTH TO WATER (BGS) - 283' J r 0
FOUNDATION. THE PROJECT INCLUDES 5 SEPARATE STRUCTURES WITH A TOTAL / ;i J' `"' •� 1, wAtER ELEv4noN . oae•
BANKS COMMUNITY U / 1 , REFERENCE TABLE 1 '' y :,;
SED FROM AN 20' ASPHALT � � .:� ! � , •:;,, � CULVERT wjl,F£S
OF 21 SINGLE FAMILY TOWN HOMES. THE PROJECT WILL BE ACCES " y Nv zs
,, .. . I ` CLEA NG LIMITS Pp1T 1054-06- , , \
ROADWAY WITH CONCRETE DRIVES TO THE INDIVIDUAL HOMES. : - ♦ _ I' - - _u ERE 097
gx III - `♦ aSOIGROUND Lfl.ERVA ON ;O' f "�/ T,I / LE 2 ,♦ ! �l ;r�' `•♦ 1�
,,;% •^ =� I) I ,u DFP1H TO WATER (SOS .1 3.12' , �\ SWA r / 1 \ \ \ i / \♦ �, �"l. �G S .. I '♦ .., R ELEVATION- _O.t2' i .01' R i�v /i' r %� r ! r .\.♦ �•• V-
' WAIF p$SEE DEUT R15E „ r : r r i r ♦ >-._., C
;' `♦ ),. i Ay,.t, / I 1 i `♦ REFERENCE TABLE t ! v 1 SEE DETAIN , i'A! ,( , r ♦,`.` \ .� �`'` O
♦j •; "/Y` ,- % % ♦ -'♦• Sd9E REPpiT 10ah0a-OB7 C VE 1,2,! i �p / `,i, ♦ ♦ .\
Jc:: '4.. / `, si'. ii ♦ CULVERT w S ; ?J / ♦;r � ' SWµt T♦1♦.
LOT COVERAGE: - : AWt`L`. �' ` •�'l SWALE e ta; / : . 45 L.F. 12' HOPE ` y'' ♦ \ ♦,4
BUILDING A - 3,989 SQ. FT. BUILDING B - 3,989 SQ. FL \'., \x L CULVERT w/ FES INV 2. I - \ tP ♦ \
h l ♦\. (x.:5 INN : 2.50 t `• % 0 ` O
- 578 S FT. BUILDING D - 4,678 SQ. FT. ,_ --
BUILDING C 3, Q �t i`� ` as F'. \ .\.... iw`�,\ ♦``(.., FlLL MI.0' 'l p "b .%: axk "y '_4�:,`,♦ .'\ `':,?�.
BUILDING E - 3,989 SO. FT. " ♦ 't 1 �' <` Flu
1�:T \ d `\.; \. �. ._.a 0 ....i ♦\ `. ' ,' I� SWALE 13 „r .`e1�r.j, \
TOTAL BUILDING LOT COVERAGE = 20,223 SD. FL \ \ CONCRETE swA 3
` \ , - ` �'•• ,dAHIN 1 l 11/CA DRIVES LE , / i'i' :` ,' ♦ \`'♦
ASPHALT PAVING AND CONCRETE DRIVES = 26,783 SQ, FT. '�=F '. , `. ..; ` ♦ Sf 50 L 12" DPE / TYPICAL
t \\ .... , `vTw,y-k.> �.�` .... ♦ / CULVE WI FE5 ,•4,
TOTAL LOT COVERAGE AT BUILD OUT = 47,006 SQ. FT. (1.08 AC.). DOWNSPOUT COLLECTION ' ' \lcl
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ON TOTAL TRACT AREA 5.60 AC. = 19.27% 6" WITH H PERFORATED DRAIN } :,\ / WALE 9 \;/
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LOT COVERAGE BASED ( ) WITH c€DTExTILE socX D, .. . ,,, ',, 1 it - �'� , . '••, slLr FENCE .
AREA LESS WETLANDS 2.86 AC.) = 37.72% INSTALL LEVEL AT INV. = 3. r.<:,,, SWAL€ 6 118. ,:y "` 9 0/
LOT COVERAGE BASED ON TOTAL TRACT ( _ _ _ _ � w .t•4 q n n DOWNSPOUT RISER .♦ r , l;, .� ♦\''•. ..-'' - - -'ao %'' '�`�{ 1 ) . \?__ ♦! % ♦ 9 >'
�,;\. .•d \ . :. - _ ,1a + / ✓'SWALE
SEE DETAIL r ♦ Yam' u \ o t --n c_na_ _ ao / BASIN 5 !J '' \\/ „ FILL UNITS
DRAINAGE BASIN AND SURFACE WATER CLASSIFICATION:_ _ µ
FILL TO 4.0'
AG BAY SC ,,,\WALE 10\0J
THIS SITE LIES WITHIN THE PASQUOTANK RIVER BASIN BETWEEN THE SHALLOWS (
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•. ice'::°, ' ! BA51N 3 i::i; .>. -; T \'�L II -_�-� j'I r<`;/ .7 {r`"'..._, ", i ♦ r mac`-' F`�a'♦ r i i E`+
0-21-3 AND CROATAN SOUND (SA 30-20-(2)). PHYSICALLY THE SITE IS CLOSER TO SHALLOWBAG _ A.�.,, - YY rt�1.•t�
3 ) t y': nS -$ .�, `_���-�-� o �Y yr.•\` / '� � ` r r<�'-_ I ,, 1. ♦.' •� /: � O.1' ♦V O
CROATAN SOUND. • ` ,". lUl :../ - - i...•:hr� s'€ ;;`„y. - r J tI ♦,', ri DOWNSPOUT COLLECTION p
BAY BUT TOPOGRAPHY INDICATES DRAINAGE TO THE !',Do_ -
♦ '`.� L!. 'l ,R �D�� --. �'-v/"t I ;<, •r. . "`SWALE 11 r, .\ ..\.♦ �\ /ir 6" CONTECH PERFORATED RAIN Z
n'eAOgP f(F -'-- _ -, -' ' l` J /i 'WITH GEOTE% LE (tea
\ `♦`.`�. i� J,, V,C �/ IG�' /` ' { INSTALL LEVEL AT INV. 3.0, �1
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REFERENCES. a 4 * 7 - - - -I,r ''; �+
r+.. .6'? N� ,°�� / I X?3- _ - CLEARING UMIT� !' S :..1 ;! r ^
LOT, BOUNDARY AND TOPOGRAPHIC INFORMATION FROM A SURVEY PROVDED BY " O ~
MANTEO NC 27954 v .... h. BASIN a '' .% CLEARING LIMITS
W.M. MEEKINS, P.L.S., 409 FERNANDO STREET, SILT FENCE
.....Y' r _. - - _ - '' i Tp C(, i r b.", sv' \ �; 35 LF. 12' HOPE t :-` 2C. �� R r+,n •, i :•, „, - , / Y -_. CULVERT w/ FES�...'^. NP'♦♦• \yv r`, ri r
ELEVATIONS BASED ON NAVD 1988 z5o
'-� ` DOWNSPOUT RISER y ` - INV
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REFERENCE MASTER PLAN PREPARED BY M AND M DESIGN, MELISSA M. MCALLISTER, P,E. SEE DETAILA' CU
REFER TO MASTER PLAN FOR ADDITIONAL INFORMATION ON WASTEWATER AND WATER - ss 2'
....-�♦ -- .-, :' ACOE JURISDICTION UNE �
UTILITIES. .-...... _. .-. -.._.. -... -._. ♦ �:: ��...: - ,:.r WETLAND AREA - 119,299 SQ. FT. (2.74 AC.) may,.l '/'BASH! 6
_..._ r ♦ . .......... SILT FENCE
DOWNSPOUT COLLECTION \\\ O
6' CON7ECH PERFORATED DRAIN \ PROPOSED FILL LIMITS �""+„ •/ : , �; ! / ,1N
;' ♦ CLEARING LIMITS `E ACGE PERMIT REQUIRED �,.,,, , '� �: ' ,; / r �•i �-{
i WITH GEVEL AT SOCK XSTINO CONTOUR (TYP) ��z-:
;% // ii `♦ FILL MITS INSTALL LEVEL A7 INV. - 3.0' F ';P 1-t:# ,!,/ , , / DOWNSPOUT RISER
i ♦ FILL T04.0' i
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% / i ♦ 8' CONTECH DOWNSPOUT
DRAIN �""4 \��
SUBJECT PROPERTY = 3.0'
' / i ♦ PATH GEOTEX71LE SOCK
INSTALL LEVEL AT INV.
i''/ // i',/ ♦\` DARER COUNTY DSEESDETAILRISER ,' A ,,,
POUTAli/ EXISTING SPOIL FROM DITCH MAINTANANCENOW j
Ir / / i `♦ FORMERLY
P.O. BOX 1000
♦ MANTEO, NC 27954
NOW OR FORMERLY ♦ PIN 9789-06-47-0843 ' p y / / EXISTING DRAINAGE DITCH �4 H
DARE
COUNTYBOX 1000 PARCEL 3 ! �+
♦ 170 SOUTH CALIFORNIIA LANE ' I - ,% , ix
/ 978
PIN N 9789 NO 27954 -06-38-5305 \♦ TOTAL AREA . 250 035 sq.ft. (5.74 cc.) / /
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i LANDFILL SITE AND EMS STATION NO. 2
\\ AREA LESS R/W . 243,032 sq.ft. (6-80 w.)
' 2 LOTH AND ADJACENT ACREAGE
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,! RALPH G. REED JR. SUBDIVISION
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138 SOUTH CALIFORNIA LANE
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D.B. 434 PG. 0719
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NOW OR FORMERLY
MALCOLM K. FEARING �q APPROVED A
P.O. BOX 759 NORTH CAROLINA ENVIRONMENTAL O ^I
MANTEO, NC 27954 MANAGEMENT COMMISSICN �+•I
PIN 9789-00-36-7798
D.B. 851 PG. $74 DiVIC;OTN OF WATER QUALITY [t] ��'I �-•I
Dzi 2-_3 20".Lq
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SIG,i'n-sH.�Perm MNo. SL...%ik'Ci7c'`\f�''
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\u DATE: SCALE:
18 �� 10/01/09 1"=40'
J: DESIGNED: CHECKED:
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GRAPHIC SCALE SHEET:
0 1 OF
CAD FILE:
SOWSERTOWN BASE
( IN FEET ) PROJECT NO:
1 inch = 40 ft. 070380

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SCALE:
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DESIGNED:
CHECKED:
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APPROVED:
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SHEET:
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CAD FILE:
BOWSERTOM BASE
PROJECT NO:
070380

SEDIMENTATION AND EROSION CONTROL NOTES
A. SITE DATA
1. Project Name: BOWSERTOWN LANDING RESIDENTIAL DEVELOPMENT
170 South California Street
Manteo, Roanoke Island, Dare County, NC
2. Developer/Applicant: DARE COUNTY
P.O. Box 1000
MANTEO, NC 27954
3. Project Description: Multifamily Condominium Site Development
4. Project Area Tabulation:
Total
Project Area:
5.60
ac.
Total
Structure Area:
0.46
ac.
Total
Asphalt Parking and Drives Area
0.61
ac.
Total
Impervious Coverage :
1.07
ac.
Miscellaneous Disturbed Areas
1.13
ac.
Total
Disturbed Area :
2.20
ac.
5. See sheet 1 for project narrative and site conditions
B. CONSTRUCTION SEQUENCE
1. Hold preconstruction conference with town planning staff,
engineer and contractor in attendance
2. Install silt fencing and construction entrance
3. Rough grade site and construct building pads
4. Install temporary stabilization
5. Construct building improvements
6. Install final stabilization and landscaping
C. STABILIZATION AND LANDSCAPING
Immediately after land clearing and grading, apply surface stabilization
on graded areas and other disturbed areas. Stabilize any graded
slopes and fills where active construction will not take place for
21 calendar days by temporary seeding and or mulching or by
other suitable means. Install permanent stabilization measures
immediately after final grading. Temporary seeding or mulching may
be necessary during extreme weather conditions with permanent
measures delayed for a more suitable time.
Permanent stabilization measures shall be in place on all disturbed
areas within 15 working days or 90 calendar days (whichever Is
shorter) following completion of construction or development.
D. MAINTENANCE OF STABILIZED AREAS
1. Check temporary erosion control devices after each significant
rainfall and/or bi-weekly. repair and remove sediment
build-up as necessary.
2. Check stabilized areas after each significant rainfall event.
rills and gullies must be repairs, re -seeded and mulched as
soon as possible. temporary diversions may be necessary
until new plants develop. Bare spots must be relimed,
fertilized, mulched and reseeded as promptly as possible.
Yearly refertilization may be required to maintain productive
stands.
3. Perform routine maintenance (including mowing and cleaning
of roadway swale) once final stabilization has occurred.
E. NOTE - THE INTENT OF THIS PLAN IS TO:
• Minimize the extent and duration of disturbed soil exposure.
• Protect disturbed areas from stormwater runoff.
• Stabilize disturbed areas as soon as possible.
• Maintain low runoff velocities (and protect areas where this is
not possible).
• Retain sediment on site with silt fencing and silt dams.
THIS PLAN REPRESENTS MINIMUM SEDIMENTATION AND EROSION
CONTROL MEASURES. ADDITIONAL MEASURES AND DEVICES MAY
BE REQUIRED AS CONSTRUCTION PROCEEDS.
F. LAND GRADING CONSTRUCTION SPECIFICATIONS
1. Construct & maintain all erosion & sedimentation control
practices & measures In accordance with the approved
sedimentation control plan and construction schedule.
2. Remove good topsoil from areas to be graded and filled, and
preserve it for use In finishing the grading of all critical areas.
3. Scarify areas to be topsoiled to a minimum depth of 2 inches
before placing topsoil.
4. Clear & grub areas to be filled to remove trees, vegetation,
roots, or other objectionable material that would affect the planned
stability of fill.
5. Ensure that fill material is free of brush, rubbish, rocks, logs,
stumps, building debris, and other materials inappropriate for
constructing stable fills.
6. Place all fill in layers not to exceed 9 inches in thickness, and
compact the layers as required to reduce erosion, slippage,
settlement, or other related problems.
7. Do not incorporate frozen material or soft, mucky, or highly
compressible materials into fill slopes.
8. Do not place fill on a frozen foundation, due to possible
subsidence and slippage.
9. Keep diversions and other water conveyance measures free of
sediment during all phases of development.
10. Handle seeps or springs encountered during construction in
accordance with approved methods.
11. Permanently stabilize all graded areas immediately after final
grading is completed on each area in the grading plan. Apply
temporary stabilization measures on all graded areas when work is
to be interrupted or delayed for 21 calendar days or longer.
12. Provide adequate protection from erosion for all topsoil
stockpiles, borrow areas, and spoil areas.
G. TEMPORARY SEEDING
The purpose of temporary seeding is to temporarily stabilize
denuded areas that will not be brought to final grade for a
period of more than 15 working days or 21 calendar days
Seeding Recommendations for Late Winter & Early Spring
Seeding Dates- December 1 to April 15
Seeding Mixture:
Species Rate (lb/acre)
Rye (grain) 120
Annual Lespedezo 50 (Kobe)
*Omit annual lespedeza when duration of temporary cover
is not to extend beyond June
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/acre
ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer
Mulch
Apply 4,000-lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch -anchoring tool. A disk with blades set nearly
straight can be used as a mulch -anchoring tool.
Maintenance
Refertilize if growth is not fully adequate. Reseed, fertilize and
mulch immediately following erosion or other damage.
Seeding Recommendations for Summer
Seeding Dates- April 15 to August 15
Seeding Mixture:
Species Rate (lb/acre)
German Millett 40
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/acre
ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer
Mulch
Apply 4,000-lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch -anchoring tool. A disk with blades set nearly
straight can be used as a mulch -anchoring tool.
Maintenance
Refertilize if growth is not fully adequate. Reseed, fertilize and
mulch immediately following erosion or other damage.
Seeding Recommendations for Fall
Seeding Dates- August 15 to December 15
Seeding Mixture:
Species Rate (lb/acre)
Rye (grain) 120
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/acre
ground agricultural limestone and 1,000 lb/acre 10-10-10 fertilizer
Mulch
Apply 4,000-lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch -anchoring tool. A disk with blades set nearly
straight can be used as a mulch -anchoring tool.
Maintenance
Repair and refertilize damaged areas immediately. Topdress with
50 lb/acre on nitrogen in March. If it is necessary to extend
temporary cover beyond June 15, overseed with 50 lb/acre
Kobe lespedeza in late February or early March.
H. PERMANENT SEEDING
The purpose of permanent seeding is to reduce erosion and
decrease sediment yield from disturbed areas.
Seed Option 1 - KY 31 Tall Fescue
Seeding Mixture:
Species Rate (lb/acre)
KY 31 Tall Fescue 100
Seeding Dates- September 30 to March 15
Seed Option 2 - Hulled Common Bermuda Grass
Seeding Mixture:
Species Rate (lb/acre)
Hulled Common Bermuda 25
Seeding Dates- April 15 to June 30
Seed Option 3 - Centipede Grass
Seeding Mixture:
Species Rate (Ib/acre)
Centipede 10
Seeding Dates- September 1 to May 1
Soil Amendments
Consult seed grower for soil amendment requirement. Soil testing
is highly recommended.
Mulch
Apply 4,000-lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch -anchoring tool. A disk with blades set nearly
straight can be used as a mulch -anchoring tool.
Maintenance
Refertilize if growth is not fully adequate. Reseed, fertilize and
mulch immediately following erosion or other damage.
INFILTRATION SWALE DATA
STORAGE CALCULATIONS ARE OPEN STORAGE ONLY - INTERSTITIAL STORAGE IS NOT INCLUDED
BASINQWALE
NUM ER
LENGTH
VOLUME/L.F.
TOP AREA
BOTTOM AREA
DEPTH
SIDE SLOPES
VOLUME
SWALE 1
185 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
555 CU. FT.
SWALE 2
30 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
90 GU. FT.
SWALE 3
30 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
90 CU. FT.
SWALE 4
45 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
135 CU. FT.
SWALE 5
105 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
315 CU. FT.
SWALE 6
145 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
435 CU. FT.
SWALE 7
180 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
540 CU.FT.
SWALE 8
55 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
165 CU. FT.
SWALE 9
8 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
24 CU. FT.
SWALE 10
8 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
24 CU. FT.
SWALE 11
20 L.F.
3 CU. FT.
N/A
N/A
1,0'
3:1
60 CU. FT.
SWALE 12
30 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
90 CU. FT.
SWALE 13
30 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
90 CU. FT.
SWALE 14
105 L.F.
3 CU. FT.
N/A
N/A
1.0'
3:1
315 CU. FT.
TLTL'TT miJ A Tin TAT 17 A QTTT n A m A
TOTAL VOLUME 2,928 CU, FT.
STORAGE CALCULATIONS ARE OPEN STORAGE ONLY - INTERSTITIAL STORAGE IS NOT INCLUDED
BASINQWALE
NUMBER
LENGTH
VOLUME/L.F.
TOP AREA
BOTTOM AREA
DEPTH
SIDE SLOPES
VOLUME
BASIN 1
N/A
N/A
600 SQ.FT.
240 SQ.FT.
1.0'
4:1
420 CU. FT.
BASIN 2
N/A
N/A
1,660 SQ.FT.
1,060 SQ.FT.
1.0'
4:1
1.360 CU. FT.
BASIN 3
N/A
N/A
1,810 SQ.FT.
960 SQ.FT.
1.0'
4:1
1,385 CU. FT.
BASIN 4
N/A
N/A
2,990 SQ.FT.
1,620 SQ.FT.
1.0'
4:1
2,305 CU. FT.
BASIN 5
N/A
N/A
1,000 SQ.FT.
490 SQ.FT.
1.0'
4:1
745 CU. FT.
BASIN 6
N/A
N/A
1,860 SQ.FT.
990 SQ.FT.
1.0'
4:1
1,425 CU. FT.
\7 ll • m A
TOTAL VOLUME 7,640 CU. FT.
1SVU1' LTU11L11L I.VLLuI11.11LJ1V JJAIA
sT0RAr,F CAI CUI ATIONS ARF OPEN STORAGF ONLY - INTERSTITIAL STORAGE IS NOT INCLUDED
BASINQWALE
NUM ER
LENGTH OF GUTTER COLLECTION LINES
STORAGE VOL. PER L.F.
STORAGE
VOLUME
BUILDING
A
300 L.F.
0.20 CU.
FT.
60 CU.
FT.
BUILDING
B
310 L.F.
0.20 CU.
FT.
62 CU.
FT.
BUILDING
C
290 L.F.
0.20 CU.
FT.
58 CU.
FT.
BUILDING
D
320 L.F.
0.20 CU.
FT.
64 CU.
FT.
BUILDING
E
280 L.F.
0.20 CU.
FT.
56 CU.
FT.
TOTAL VOLUME
300
CU. FT.
EXTRA STRENGTH FILTER IC ATTACH FILTER FABRIC
NEEDED WITHOUT WIRE MEF SH SECURELY TO UPSTREAM
SUPPORT SIDE OF POST WITH PLASTIC
STEEL POST OR WIRE TIES
STEEL POST
0
B' MAXIMUM POST SPACING WITH STANDARD
STRENGTH FABRIC WITH WIRE FENCE
6' MAXIMUM POST SPACING WITH EXTRA
STRENGTH FABRIC WITHOUT WIRE FENCE
STEEL POST
FLOW
FILTER FABRIC
18" -24" 8" DOWN AND 4" FORWARD ALONG THE TRENCH
BACKFILL TRENCH AND COMPACT THOROUGHLY
jr+ UPSLOPE-
24" MIN.
_J_V '-4"x8" TRENCH W/
COMPACTED BACKFILL
TRENCH DETAIL
NOTES:
1. SILT FENCE SHALL BE PLACED ON SLOPE CONTOURS TO MAXIMIZE PONDING EFFICIENCY.
2. INSPECT AND REPAIR FENCE AFTER EACH STORM EVENT AND REMOVE SEDIMENT WHEN
NECESSARY. 9" MAXIMUM RECOMMENDED STORAGE HEIGHT.
3. REMOVED SEDIMENT SHALL BE DEPOSITED TO AN AREA THAT WILL NOT CONTRIBUTE
SEDIMENT OFF -SITE AND CAN BE PERMANENTLY STABILIZED
SILT FENCE DETAIL
NOT TO SCALE
2 - 3 inch washed stc
6" minimum thickness
NOTES:
1. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENT TRACKING
OR FLOWING OF SEDIMENT ONTO PUBLIC RIGHT-OF-WAYS. THIS MAY REQUIRE TOP
DRESSING, REPAIR AND/OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT.
2. WHEN NECESSARY, WHEELS SHALL BE CLEANED PRIOR TO ENTRANCE ONTO PUBLIC
RIGHT-OF-WAY.
3. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITH
CRUSHED STONE THAT DRAINS INTO AN APPROVED SEDIMENT TRAP OR SEDIMENT BASIN.
SECTI
NOTES: 1. APRON LINING MATERIAL IS RIPRAP
2. La IS THE LENGTH OF THE RIPRAP APRON
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER,
BUT NOT LESS THAN 6 INCHES,
I
3do (MIN.)
'IPE OUTLET TO WELL
)EFINED CHANNEL
I
FILTER CLOTH KEY IN e'-9"; RECOMMENDED FOR ENTIRE PERIM31I
FLUME OR CULVERT OUTLET PROTECTION
NOT TO SCALE
3' 3' 3' 20' 33' 3'
9' 10' 10' 9'
/ EOP = 4.73' +/ _ ^^^T """, F.G. = 4.94'
3' 1 3' i- 3'1 20'
INSTALL TRASH AND LEAF BUILDING PILING OR �EOLID HINGED LID
MIN.
GUARD IN DOWNSPOT AT GUTTER FOUNDATION WALL
12" NYLOPLAST DRAINAGE
DOWNSPOUT ADAPTER BUILDING GUTTER DOWNSPOUT BASIN BY ADS OR EQ.
5" ADS SINGLE WALL HDPE
INSTALL GUTTER ADAPTER AND GUTTER DRAIN CLEANOUT TO BE INSTALLED WITH SLOT PERFORATIONS AND
TOP OF CLEANOUT AT 4.0' MIN. 6" ADS SINGLE WALL HDPE \ AT THE ENDS OF ALL LINES AT AT ALL NYLOPLAST GEOTEXTILE SOCK
\\\ 90' BENDS TYPICAL FINISHES GRADE 45' BEND TYPICAL FINIS .0 GRADE (��
_ PIPE AREA - 0.20 SQ.FT.
\� INSTALL TOP OF ELEV. = 4.0 ELEV. 4.0
CLEANOUT AT 5.0' MIN. INV. 3.0' 1, SATURATION CONE AREA =2.0 SQ. FT.
TYPICAL FINISHEq GRADE ELEV. = 5.0 MIN. �� ---- -t TO ASSUMED SHWT
6" ADS SINGLE WALL HDPE INSTALL LPL SOIL VOIDS ASSUMED AT 30X
ELEV. = 4.0 TYPICAL FINISHEQ GRADE _ ,
ELEV. = 4.0 SATURATION CONE`
\l\ _ 15' OFF VERTICAL \.\•.. ! _
TO BASIN DISCHARGE / ! , �STORAGE
TORAVOLUME O0PE)R=L•0.8OFPIPE
CU.FT.-
6" ADS SINGLE WALL HDPE -"Y" CLEANOUT ASSEMBLY INVERT 9UT ,
WITH TOP CAP CAP END OF = 4.0 I ` (VOLUME INCLUDES INTERSTITIAL STORAGE)
WITH SLOT PERFORATIONS AND ESTIMATED SEASONAL HIGH
GEOTEXTILE SOCK / ASSEMBLY ''I i WATER TABLE ELEV. - 1.0'
INSTALL LEVEL _ _ _ _ \_ _ �/ '_ _ _ _ _ ` _ _ _ _ _ _
II INV._- 3.0_ NYLOPLAST ----- ! '\ •`"'�
INSTALL LEVEL 45• BEND P� •••
• L 1
III INV. - 3.0 .III INVERT IN - - _ 0: •F S
INV. 3.0
, I _
-_-_ INSTALL LEVEL BASIN BOTTOM�6 ADS SINGLE WALL HDPE Q
_
INSTALL LEVEL - , WITH SLOT PERFORATIONS AND
= 2.0 _ c SEA!
GEOTEXTILE XTIL SOCK - R N LINE - 899
- FROM GUT T COLLECTION
/ Y" WITH OUT ASSEMBLY E _
6" ADS SINGLE WALL HDPE WITH TOP CAP
WITH SLOT PERFORATIONS AND 6" ADS SINGLE WALL HDPE �'•, Al.
GEOTEXTILE SOCK
TO SCALE
SCALE
BUILDING GUTTER DRAIN RISER DETAIL
NOT TO SCALE
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DATE:
10/01/09
SCALE
1 "=40'
DESIGNED:
CHECKED'
mwr
DRAWN:
APPROVED:
mwr
mwr
SHEET:
2
2
OF
CAD FILE:
BOWSERTOWN BASE
PROJECT NO:
070380

GENERAL NOTES
N
W
O
z
TOWN OF MANTEO
S 3718'17"E DB 785 PG 634
PIN 9789-06-48-7676
WASTEWATER
TREATMENT
80' EASEMENT
-----7—'T T T----�M25 PO 803—
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281.24'
1n
N/F
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FEARING III
DB 851 PG 874
PIN 9789-00-36-7798
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N/F N 37'18'17"W I 1
DARE COUNTY
DB 434 PG 719
PIN 9789-06-38-5305 I
1. SUBJECT PROPERTY: PARCEL 3
DARE COUNTY
AS RECORDED IN PL G, SL. 101, DARE COUNTY REGISTRY
D.B. 1653, PG 14 &f&f
2. CURRENT OWNER: DARE COUNTY
P.O. BOX 1000
MANTEO, NC 27954 MN DES/6N
[phone] f EN6INEER/N& P.G.
3. PROPERTY STREET ADDRESS: 170 S. CALIFORNIA LANE. P.O. BOX /470
KITTY HARK, NC
4. PIN NUMBER: 9789 06 47 0843 27949
5. PROPERTY IS CURRENTLY ZONED: R-2 (25226/PHONE
(252)) 261-774'170 FAX
6. PROPOSED DEVELOPMENT: ONE AND TWO STORY FRAMED TOWN HOMES
WITH ASSOCIATED DRIVE AND PARKING.
7. FEMA DATA:
FIRM ZONE: A6 (EL 9) AS PER DATA FROM W.M. MEEKINS Jr. &ASSOCIATES. INC. SUBJECT TO
CHANGE BY FEMA
8. MINIMUM BUILDING SETBACKS:
SIDE YARD = 25'
FRONT YARD = 25'
REAR YARD = 25'
9. BUILDING HEIGHT LIMIT:
TOP PLATE = 27'
TOTAL = 35' MAX
10. LOT COVERAGE:
TO BE LESS THAN 25% FOR LID.
11. PARKING SUMMARY:
21 TOWNHOUSES ® 2.5 SPACES PER UNIT = 52.5 SPACES TOTAL PROVIDED SPACES
53 SPACES
12. LANDSCAPE BUFFERS:
13. LIGHTING:
SECURITY LIGHTING ON BUILDING AT ALL ENTRANCES, LIGHTING SHALL BE ORIENTED SO THAT
THERE IS NO GLARE ENCROACHING ON ADJOINING PROPERTIES OR S. CALIFORNIA LAND.
14. ARMY CORPS OF ENGINEER "404" JURISDICTIONAL WETLANDS AS PER DELINEATION BY
ENVIRONMENTAL PROFESSIONALS SURVEYED BY W.M. MEEKINS NOT YET CORPS CERTIFIED. ARMY
CORPS OF ENGINEERS 404 AND DWQ 401 CERTIFICATION OF FILL REQUIRED TO FILL PROPOSED
AREA OF WETLANDS. NATIONWIDE 18 PERMIT BEING APPLIED FOR.
15. PROPOSED UTILITIES TO BE LOCATED UNDERGROUND. CONTRACTOR SHALL CONTACT NC ONE
CALL CENTER 1-800-632-4949 BEFORE DIGGING. EXISTING UTILITY LOCATIONS ARE AN ESTIMATION
AND ARE NOT CERTIFIED.
16. WASTEWATER SYSTEM:
DESIGN FLOW PHASE 1
8 UNITS WITH A MAXIMUM OF 24 BEDROOMS ® 120 GPD/BEDRM = 2,880 GPD (ADVANTEX)
4 UNITS WITH A MAXIMUM OF 8 BEDROOMS ® 120 GPD/BEDRM = 960 GPD (POD)
DESIGN FLOW PHASE II
9 UNITS WITH A MAXIMUM OF 24 BEDROOMS 0 120 GPD/BEDRM = 2,880 GPD (ADVANTEX)
17. PROPOSED SIGNAGE TO COMPLY WITH DARE COUNTY ZONING ORDINANCES 22-59. ADDITIONAL€
REVIEW FOR ON -PREMISE SIGNAGE WILL BE NECESSARY, x
18. STORMWATER FROM THE PROPOSED IMPROVEMENTS AND THE BOAT RAMP IMPROVEMENTS WILL
BE DIRECTED BY SHEET FLOW TO A SWALE THAT DISCHARGES TO WOODED WETLANDS. THE W
INFILTRATION AREA WILL MANAGE IN EXCESS OF THE 1 YEAR 24 HR. U lu
19. THIS IS NOT A BOUNDARY SURVEY. ENGINEERING SEAL CERTIFIES PROPOSED SITE
IMPROVEMENTS ONLY. BOUNDARY, EASEMENTS AND EXISTING SITE INFORMATION PROVIDED BY W.M. Z
MEEKINS Jr. & ASSOCIATES, Inc. 409 FERNANDO STREET, P.O. BOX 1995, MANTEO, NC 27954 (252) IL
473-2626. Z
20. DWELLING DENSITY IS BASED ON SECTION 22-58.3, FAMILY HOUSING INCENTIVE STANDARDS, OF
THE DARE COUNTY ZONING ORDINANCE AND SECTION 22-31, GROUP DEVELOPMENTS.
12 UNITS UNITS
8 THREE BEDROOM
WO BEDROOM
PHASE
2 BUILDINGS ,+•.
9 UNITS O
6 THREE BEDROOM
3 TWO BEDROOM J
O
U
p�
Z
GRAPHIC SCALE
( IN FEET )
I inch = 30 1t.
CA
DATE
0-B-0B
DRAWN
MAM
FILE NO,
02g6O7
5hlEET
/0F