HomeMy WebLinkAboutMiscellaneous - 80 FLAGSHIP DRIVE 7/11/1988 �
DRAINAGE CALCULATIONS
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PREPARED FOR
MICROMATICS INC.
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LOCATED AT �
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FLAGSHIP DRIVE, NORTH ANDOVER
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J .J .B. Associates, Inc .
145 Marston Street
Lawrence, MA 01841
July 11 , 1988
145 Marsic)n St., Lawrence, Mass. 01841 a Tel. (617) 975-1130
ENGINEERS & LAND PLANNERS
SUMMARY
MMARY
c_,t, - ,n ist.`, of 2. :res of land on the southAly side of Flagship
nnn in lesignated as l H. The existing drainage is generally in a
Kv �slprlw direction from he rear to the front of the lot. Peak flows were
i t j F� p the 2 , 10 ,25 , 50 and 100 year :storm events.
, ,Pd drainage conditions call for an i_nc're'aae in the impervious
a se-:d. -,y an increase in the size of the building and an increase in the
,- o narKing area, as we ; l as the construction of a drainage system
i s of two catch basin , connected with 12" concrete pipe and a new drain
o he constructed ova: the existing drain on Flagship Drive. Again peak
we? e calculated for 2 , 1 " , 25 , 50 and 100 year storms ,
i ko increase in flow for ,die 2 year storm is one ,cfs . The increase in flow
the 7.0 , 25 , 50 , and 100 year storm is two cfs. The two proposed catch basins
1 handle the increase in flow up to a 25 year storm, the 50 and 100 year
arms will overtax the basins and the excess water will run •'.off the lot to the
rthwest as with the present conditions.
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SOIL DATA
} ESSEX COUNTY, MASSACI
Joins sheet 30
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700000 FEET (Joins sheet 40)
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71'0/' 30" / toss. 326 710 0001 FEET 329 5,
�6� Mappe edited, and published by the Geological'Survey
\�Gy� Controi y USGS,USC&GS,and Massachusetts Geodetic Survey
v��69 Planimr y by photogrammetric methods from aerial photographs N GN
taken 1 39. Topography by planetable surveys 1942. Revised 1966
Polycoi projection. 1927 North American datum 1sy�•
10,000 ,ot grid based on Massachusetts coordinate system, 276 MILS 1.241
main!a zone \ 25 MILS
1000"r ter Universal Transverse Mercator grid,
zone " 1
Red „. rldicates areas in which only landmark buildings are shown UTM GRID AND 1979 MAGNETIC NORTH
- DECLINATION AT CENTER OF SHEET
There be private inholdings within the boundaries of
the N lal or State reservations shown on this map
t n c M1«¢t x
ri � i i ,ri' +fin •.fit+ f'
Ui; 'r', Mk,SACHUSETTS, NORTHEN,! PART ?7
inche dark yellowish brown (10YR 4/4) not significantly affect the use and management of `.e
!oar weak fine and mediur i granular- soils.
~ry ` ible; many fine roots; sit,ngly acid; Paxton soils formed in the same kind of material as
y bo_ idary. poorly drained Ridgebu.ry soils, very poorly drained W it-
unchc s; light olive brown'(2.5Y 5/4) fine man soils, and moderately well drained Woodbric je
1,, m; few fine faint light olive gray, (5Y 6/2) soils.-They are similar to Charlton and Montauk sc .s.
'iv, yellow (2.5Y 6/6) mottles Weai: fine and Paxton soils have a fragipan, which the Charlton soils Jo
c :m lranulr.r structure; friable,4iacommon fine not have—They have less sand in the fragipan than -:e
)ot sir ;ngly acid; abrupt wavy boundary. Montauk soils.
-2 o :_0 inches; olive (5Y 4/3) loamy sand; few Typical 'pedon of Paxton fine sandy loam, 8 to 15
e ';.aint light olive gray (5Y 6/2) land light.olive percent`slopes, in the town of Amesbury, in an idle field
OV 7 ,(2.5Y 5/4) mottles;,: massive; very.. friable; on the hillside 700 feet east of the junction of Martin
fret,11y acid; abrupt wavy boundary. Road and Massachusetts Route 110:
_: CO ro ,i8 inches; olive (5Y 413) loamy fine sand,
.r mrdium F 1.ominent light olivetgray (5Y 6/2) Ap—O to 6 inches; very dark grayish brown (10YR 3/2)
'.rc- g bro,.m (7.5YR 5/8) mottles; massive; fine sandy loam; weak fine granular structure; very
ia_ie; str�,ngly acid; abrupt:wavy boundary. friable; many fine and medium roots; 10 percent
inche<; light olive brown (2.5Y 5/4) strati gravel, 5 percent cobblestones; extremely acid;
e nd medium sand; many medium prominent abrupt smooth boundary.
nish tray (2.5Y 6/2) and:strong brown B21-6 to 15 inches;yellowish brown (10YR 5/6) 1 ne
8) me ttles; single grain; loose; strongly sandy loam; weak fine granular structure; friai le;
10.
common fine and medium roots; 10 percent gra.el,
e thickness of the solum r 5 percent cobblestones; strongly acid; abrupt w,-Ivy ranges;:fom 18 to 34 boundary.
es but is typically 20 to 30 inches The content of
rse fragments is less than 10 percent:by volume, in 622-15 to 21 inches; light olive brown (2.5Y 5/4) gr v
solum and less than 20 percent in�the C horizon elly fine sandy loam; moderate fine and meth :m
ve a depth of 40 inches. There are, layers subangular bloc structure; firm; few fine �d
,w a depth of 40 inches in some..pedans. The reac- medium foots; 15 percent gravel, 10 percent cob' a
in unlimed areas ranges from medium acid to very. stones; strongly acid; clear wavy boundary.
ugly acid.. Bx1=21 to 36 inches; olive browvi (2.5Y 4/4) grav ly
he Ap horizon has hue of 10YR, value"of 3 or 4, and fine sandy loam; strong medium and thick p' .ty
)ma of 2 to 4. In undisturbed areas:,fhere is an Al structure; very firm; thin clay films in some pc -s
son 2 to 4 inches thick that is 1 or 2units darker in and on some ped faces; 15 percent gravel, 10 F r
or chroma or both. The A horizon:.is fine sandy cent cobblestones; strongly acid; gradual w, ✓y
or very fine sandy loam. boundary.
e B21 horizon has hue of 7.5YR or 10YR, value of 4 Bx2-36 to 60 inches; olive (5Y 4/3) gravelly fine sandy
and chroma of 4 or 6. The.1322 horizon has hue of, loam; strong thick platy structure; very firm; thin c ay
3 or 2.5Y, value of 4 or 5, and chroma-;of 3 to 6. The films in most pores and on some ped faces; wl to
lorizon has mottles with chroma of 2 or less. The:. coating between peds when dry; 25 percent gra, -�l,
re of the 1322 horizon is fine sandy loam, sandy` 10 percent cobblestones; medium acid.
or Icamy fine sand. f
C ' )rizon has hue of 2.5Y or 5Y, value of 4 or 5,` The-`depth to the fragipan ranges from 18 to 2
.hro ra of 2 to 4. The C horizon Fhas distinct-,.or ' inches. The rock-fragment-content ranges from F to
�inent mottles. It is loamy fine sand, loamy :,and, fine, percent in the solum and 10 to 35 percent in the fry
or r diem sand. Y' pan. Reaction is slightly acid to strongly acid.
The Ap horizon has hue of 10YR, value of 3 or 4, r
,R °r �S chroma of 2 to -t. The Al horizon, where preset !,
— - - ; hue of 10YR, value of 2 or 3, and chroma of 1 or 2. 1
P� `on series consists of coarse-loamy, mixed, A horizon is fine sandy loam or loam or gravelly a
Ty; c I ragiochrepts. These deeps; well drained logues of these t,:xtures.
re )n plands. The soils formed in glacial till. The B horizon has hue of 7.5YR or 10YR, value of
rarrle rom 3 to 45 percent. In this_ survey area and chroma of 6 or 8-fn-the upper part and hue of 10' A
•Is -•re c� taxadjunct to the Paxton series because,: or 2.5Y, value of 5, and chroma of 4 or 6 in the lov �r
gave -,lay films in the fragipan that-are not in the,,, part. The horizon is sandy loam, fine sandy loam, -r
A ra—ge or the series. They also have a stronger loam or their gravelly analogues. The structure is grai
of structure in the fragipan. These-differences do lar, subangular bluckv. or platy.
f $EXICOUNTY, MASSACHUSETTS, NORTHERN PART
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' TABLE- 16.--SOIL AND WATER FEATURES=_Continued
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Flooding-: High water table , Risk c c.:
a "name and !Hydro-� r-xl ; , , ;Potential;--- T._
map?;symb.ol ! log Frequency 1 Dura c
tion "IMonths I Depth I Kind !Months I frost IUncoate 1c
!group action I steel I
y-1n l I I I Ft
I
On.
WE
'e Hile1sley - I A ,Nona --- --- --- ow-----
4j"1 '---'• 1 a'-'
----
RW dso r i�---- �'
---i
I
�' A .. INone ��?- ----{ --- { --- { >6.0 --- ! --- .Low------
!Low------IRi:
{-+W +I�sW eh -------I { q I Y
l
1 I I !
D IFre uent---- Ver brief Jan-Dec +1-0.0 Apparent!Jan-Dec! --- (High---—Ih:
at ' Westbrook .r------! D r: ' q !Very i I _--
1 of Jan-Dec +1-0.0 anent Jan-Dec
'# ' --- I PP 1 I High-----I'ai:
y I re uaht----IVer brf 1 I i i I I
LeA LeB --- ' ' ' I 1
Y. r ----� , C9` None —I --- 1 --- I 0-1.5 Apparent!Nov-MayiHigh-----!Low----
-I-:
=Leicester, { I I I { ! ! I !
` y 'Y! 1 I 1 1 I I 1
at` Limerick ---:---i C , . !Frequent ---1 Brief- '--!Oct-Jun{ 0-1.5 Apparent!Nov-JunlHigh-----lHig --- -ILc
,,
umneY , - ---{ C iFregaent ---{Brief- -IOet-Ma ' 0-1:51A i g g .--- -•I :i
'x• r , yl pparentlNov-Jun Hi h-----,Hi
a i
-- ---! D INone 0-0.5IPerched !Nov-Aug{High-----1Hign--- -
I,
ate
Medi$d rl$ s ,1 1 I I I
y,
e v .._ ,
at # 1 , 6.0 --- I --- (Moderate I Mod erat Ic
tfie'1"�rse I INj { I 1
u Mm MmB,,mC,
Mm6 r 1 !
=-- ---{ A on ----! --- { --- { >6.0 --- ! --- !Low------!Low---- I
lderrimae I ! { ! { ! I 1
• �t� I� I - I 1 ' I I 1
10 �iMO'C, MoD,
iy I I 1
M�sB,�MsCO. M , ! ! ! ! !
1
C , i 1 None t)
>6.0 !! !!
Modena I:o,r
Montau k `
I I I { { ! 1
'NnA a'NnB ----- ---- PP L -
a � :• � -- ! B !None -! --- ! --- {1.5-3.511 arent'Nov-Apr'Modera
e Y._Ninigr,et4�: ! ! ! I { ! ! !
PbB kPb6 PbD { { ! { !
PeC rPeDf"PcE----, C None--------
Pew - ---! A !None �- ! ! --- l0.5-1.5 pparentlOct-JunlMod --
-- era• .
- .,2E
,,.!
!Pitay .gravel
Q u
,
Quarries ? { ! ! ! ! ! !
Ra --- -----! C !None--------! --- ! --- 10.5-2.0 :3rentlNov-JunlHigh--
_Ra nfiam
ry Y 1 I 1 I I I I
dBRdA; C None- _ ! 0-1.5� a;-�hed !Nov-tay:High--
I
�y
1 1 I i 1 I I
s ;Ridgeburyi-------i C r !None -----{ --- ! --- ! 0-1.5I?erched !Nov-MayiHigh-----1Hie ---
ite.: Leicester--------{ C !None ;-:----! --- ! --- ! 0-1.51:',pparent!Nov-MarlHigh-----!Low
ez; 4, ee Footnote at end'of table:;
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PREDEVELOPMENT FLOWS
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T?i.-55 MIVE NUMBER COMPUTATION VERSION 1. 11
i n om.tics FlagsbU drive User: JJB Date: 07-10-88
No. Andover, Essex .Mate: Ma Checked: Date:
E;xA :inn Conditions ---
Hydrglogic Soil Group
`E! DESCRIPTION A B C D
Acres (CN)
TOPID URBAN AREAS Kog Estab. )
oc r Q;.;n;:_ parks etc. )
i t on; grass cover Q% to 7590
ArF- a ,
r i ng lots , roofs , w—iveWays - - 0. 68 ,98) -
jr I ULTURAL LAND,
- -ass combination fair - 0:69 (76Y -
j
1 Area (by Hydrologic Soil Group) �. 5
AREA; exist TOTAL DRAINAGE AREA: 2. 5 Acres WEIGHTED CURVE NUMBER: 83k
Qn ,r ted. For use by GRAPF IC, method
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TB-55 To and Tt TBBU SUBAREA COMPUTATION V ERST0I- 1
Project Mioromatice Flagship Drive. User: JJB Date: 07 - 10-
County No. Andover, Essex State: Mn Check-*d; Date:
Subtitle: Existing- Conditions
,
_________________________________________________ ______________________ __
Flow Type 2 year Length - Slope Surface n , Area Rp Velooitu 1' `
rain (ft)'` (ft/ft) code (�g/ft) (ft) (ft/sec) (|
______________________________________________________________________ __ ___
Sheet 3. 0 300 . 053 f O x
Shallow Oonomnt 'd 300 ^ . O58 �� 0 (
. .
Time of Coocentretton
---
--
Shallow COnoent 'd 300 ,-~' . 053 U.
Shallow CwnoeDt 'd 300 . 053 ]p 0 /
Travel Time
---
--- Ghmet FImnrf ace Cod es ---
A Smooth Surface F (Jrmea ' Dense -- D. allnw Conr'ootr'te'' �
B Fallow (0o Res. ) Q Grass , Burmuda Svrfaoc Code`
C Cultivated < 20 % Res. B Woods , Light P I,aned,
D Cultivated > 20 % Bea. T Woods , Dens* U Ou�: oed
E Grass-Range , Short �
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Generated for use by {]BAPBTC method
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TR-55 GRAPHICAL DISCHARGE ME`, UOD MFRS Cat 1 .
Project : Micromatics Flagship Drive t :,e.r: JJB Date: 7- 0
County No. Andover, Essex State: Ma Chec 'fired:
Subtitle: Existing Conditions
Data: Drainage Area 2. 21 * Acres
Runoff Curve Number 81 *
Time of Concentration: 0. 41 * Hours
Rainfall. Type III
Pond and Swamp Area NONE
Storm Number _ 1 ___{ 2 ; 3 ; 4 - - - 5 '
' ' --- ' ------ ' ----
i , , -- -----
---------------------
Frequency (yrs) 2 1 10 ; 25 50 100
24-Hr Rainfall (in) 3. 00 ; 5. 0 5. 5 6. 1, 6 . 5
Ia/P Ratio ; 0. 16 ; 0. 09 0. 09 ; 0. 08 0. 07
Used 0. 16 ; 0. 10 0. 10 0. 1() 0. 1-0
Runoff (in) 1. 31 ; 2 , 99 ; 3. 43 3 , 6; 4, 34
Unit Peak Discharge ; 0. 665 ; 0. 695 10. 695 ; 0. 691 ; 0. 695
(efs/acre/iri)
Pond and Swamp Factor ; 1:., 00 1. 00 ; 1. 00 1. 04 1. 00
0, 0% Ponds Used
' ------------------------- ' ------ ' -- ---- ' ------ ' -- - -- -- '
Peak Discharge (cfs) ; 2 5 ; 5 7
* -
Value (s) provided from TR-55 system routines
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POSTDEVELOPMENT FLOWS
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TR-55 (-, VE NUMBER COMPUTATION VERSION 1. 11
m).c:r )m.-atics Flagshi Drive User: JJB Date: 07- 10-88
Andover , Essex State; Ma Checked: Date:
f'7'o F?
Hydrologic Soil. Group
OVE1 DESCRIPTION A B C D
Acres (CN)
------------------------------------------------
�J- V 0 UHBAIN AREAS ( ', -g Estab. )
�.c (L�: ms ,parks etc. )
-rdi.ti m; grass cover 501 - - 0. 73 (86) -
Arc a:
r �rkin-- lots , roofs , d t•iveways - - 1. 10 (98) -
[iL`1 UJAAL LANDS
-,; s = tribiriat,ion fair - - 0, 67 (76) -
l r (by Hydrologic Soi.i Group) 2 . 5
RE;` : ='rop TOTAL DRAINAGE AREA: 2. 5 Acres WEIGHTED CURVE NUMBER: 89*
r ited For use by GRAPF IC method
TB-55 To and 7t TBBV SUBAREA C0Ml `778TIO0
Project Miuzometioa Flagship Drive <'^or: JJB D qe:
County No. Andover, Essex State: Ma Cba/`k*l; I' :e;
Subtitle; Proposed
----------------------------------------------------------------- ---- -
Flow Type 3 year Length ' SIope Surface u Area WD \+loo ` t!
rain (ft) MAW code (sq/ft) (ft) / tt/e'`o ) /
__________________________________________________ ________________ ____ _ __
Sheet 3 . 0 300 . 058 f - O -
' �
0pen �Channel 330 O19� O13 ?85 1 �7 O C
Open, Channel . . . . .
-`
Time of Concentration 0. 4 �
� --
- -
����
Shallow OVuoent 'd 300 . 053 u OM �
Open Channel ^ �30 . O184 � 0 � 3 � 7B5 1� 5? O� A |
|
' Travel Time = A, O3
----
----
� ~ .
--- Sheet Flow Sur��oe Codes --- �
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A G0oVtlz Surface F Grass , Dense --- GbaIIwnv O*nwantr/'tp` /
B Fallow (0o Res. ) (3 Grass , Bnrmuda -- Sozfac'` Code: �
C Cultivated < 20 % Bea. B RVVda , Light P Pa»^`l
D Cultivated > 20 % Rea. I Woods , Dense D Un`'» ved
E Greaa-Bmngo . Short
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Generated for use by GRAPHIC method �
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TR-55 , GRAPHICAL DISCHARGE ME`;' 'OD VFR: iQ1j 1 .
Project Micromatics Flagship Drive r. : JJB r).:te: 7 U
County No. Andover, `Ts.i��x State: Ma C1ler, -mod:
Subtitle: Proposed
Data: Drainage Area 2. 5 * Acres
Runoff Curve Number 89 *
Time of Concentration: 0. 41 * Hours
Rainfall Type III
Pond and Swamp Area NONE
Storm Number 1 2 3 1 4 5
' ---------------------- " -- ' ---- ._ � ----
Frequency (yrs) ; 2 10 ; 25 1 50 100
24-Hr Rainfall (in) ; 3. 0 5. 0 ; 5. 5 ; 6, () 6 . 5
Ia/P Ratio ; 0. 08 0. 05 ; 0. 04 ; 0. 0i7 0. 04
Used ; 0. 10 ! 0. 10 ; 0. 10 0 . 1i 0, 10
Runoff (in) ; 1. 90 3. 77 ; 4. 25 ; 4 . 7 5 . 22
Unit Peak Discharge ,I). 695- 0. 695 10. 695 ; 0. 69f ! 0.- 695
(cfs/acre/in) 1
Pond and Swamp Factor ; 1. 00 1. 00 1. 00 1, 0(1 1, 00
0. 0% Ponds Used
' ----------- --- ' ------ '
Peak Discharge (cfs) 3 7 7 ; 9
- Value (s ) provided from TR-55 system routines
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