HomeMy WebLinkAbout04/10/2024 - Drainage Overview - - U!
NOTES:
1. THE PROPOSED PROJECT IS LOCATED ENTIRELY WITHIN AN
AREA OF EXISTING PAVEMENT,AS SUCH THERE WILL BE NO ) �
INCREASE OF IMPERVIOUS COVER OR STORMWATER RUNOFF. 1
2. THERE ARE NO MAPPED WETLANDS LOCATED WITHIN 100 Headwall discharge r
om existing
OF THE PROPOSED WORK.CLOSEST WETLAND IS LOCATED
APPROXIMATELY 350'TO THE WEST OF LIMIT OF PROPOSED WORK. drainage IIon of r S r I I /
3. ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL hangars
DATUM(NAVD 1988)
SD
4. PROPERTY IS NOT LOCATED WITHIN A DESIGNATED FLOOD /
HAZARD AREA. �
5. PORTIONS OF EXISTING CONDITIONS IS BASED ON BASEPLAN SD Jp SD _ RiM=i ae.os' g
INFORMATION PROVIDED BY STANTECH,THE LAWRENCE Sp 5° Nv:-;.4;
MUNICIPAL AIRPORT'S ENGINEER.
isolated vegetated
6. EXISTING CONDITIONS SHOWN WAS COMPLETED BY AN ON
THE GROUND INSTRUMENT SURVEY COMPLETED BY ANDOVER
CONSULTANTS. LOCATION OF ANY UTILITY INFORMATION wetlandr stantech /
SHOWN ON THIS PLAN IS BASED ON OBSERVABLE FIELD �g6
EVIDENCE AND RECORD PLANS. SOME UTILITIES SHOWN ON
THIS PLAN RELIED ON GROUND MARKINGS PROVIDED BY A �¢ NV.,as.eoz°(s) F
UTILITY LOCATION COMPANY. ADDITIONAL UTILITIES MAY O wv.ia.ae'(N)
6 mp
EXIST THAT ARE NOT SHOWN HEREON. THE CONTRACTOR
- c' � ate• Jp
SHALL CONTACT"DIG—SAFE"PRIOR TO ANY ON SITE
EXCAVATION.
F rs Ir-
7. THESE DOCUMENTS HAVE BEEN PREPARED TO SATISFY
ASCE 38.02 MINIMUM UTILITY QUALITY LEVEL C ONLY. N moo,.
38.02 MINIMUM QUALITY LEVEL C IS LIMITED TO THE
COLLECTION AND REVIEW OF AVAILABLE RECORD UTILITY --
DOCUMENTS AND A SITE FEATURES SURVEY TO MEASURE So °,•'
e THE LOCATION AND ELEVATION OF THE EXISTING SEWER a �Ile
O S
AND DRAIN SYSTEM.
15 CB
0�11p ,87(N
11 / ICJ
S _ L_J
/ osA IrI II-
-----------
isolated area extends further to
�-�� GCB
Headwall r I r \ South west and outlets at
RIVM 15308
IN 14803(5)�MH
JO '�- -hlv ia�9e J° ` j(Z1� 153..8299INv=aa'
double catch '(NE)r Iproposed basin NV= (sw hangersr locations on
airport to r lnage ditch
MEWIL
50
RIM 160.32
�sa.6a sa (NE)
J° =� ss ws
INv.�6a 6a N'
-61 le
/so
ti
DRAINAGE OVERVIEW
% V LAWRENCE MUNICIPAL AIRPORT
y NORTH ANDOVER, MASS.
PREPARED FOR: TANGO HOTEL, I I C
DATE:APRIL 10, 2024
SCALE:1'=60'
/ -
r � r ndove
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o consultants _
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c.
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East River Place 1 ace
✓
f j Methuen,Mass.01844
Dennis A.Griecci
Telephone:978-687-3828 Reg. Prof.Engineer
Kam,
—— /-' 0 60 120 180 240 Ft.
P: — \dwg\23-61 Sutton—site plan.dwg