HomeMy WebLinkAbout20200083 South Broadway Hotel Engineers Report 1-31-20 �
The LA GROUP
La�idscape ArchitecturehYEnqineerinq P.C_
Pe�/c.Pnrpnlr.P/a.:.
��1 C_.(111() ���f_'.ti�
`_�?�I��i(OC�d S�]I IIlgS
4VY 12�66
r 51� '�87 ;�()47
�:_�,,�t_ ,_,'_n�Q,,
Engineering Report
Water and Sanitary Sewer
For
176 South Broadway
SOUTH BROADWAY
SARATOGA SPRINGS, NEW YORK
Planning Board #20.XXX
Prepared For
Larkin Hospitality
410 Shelburne Road
Burlington, VT 05401
Contact: Joe Larkin
Prepared By
The LA Group, P.C.
40 Long Alley
Saratoga Springs, New York 12866
January 31, 2020
Engineering Report 176 South Broadway
Larkin Hospitality
2016144
L Introduction
The proposed proj ect involves the development of a four(4) story hotel located on the east side
of South Broadway (NYS Route 9) approximately 250 feet south of the intersection of South
Broadway and Lincoln Avenue. The building will have underground parking, a swimming pool,
fimess center, bar/lounge and a total of 120 sleeping units. The property is currently a motel.
Municipal water exists within South Broadway. Municipal sewer exists on the East side of
South Broadway.
Water will be supplied for domestic and fire protection through a new 6-inch branch lateral
which will connect to the 12-inch main on South Broadway. This existing 12-inch main is
owned by the City of Saratoga Springs.
For sanitary sewer collection, a new connection will be made to the existing manhole on the east
site of South Broadway which is currently connected to the municipal system.
IL Proiect Description
The proj ect proposes a four story hotel with associated access drives,parking areas, landscaping
and stormwater management. The building includes 120 guest units.
IIL Existin� Water and Sanitarv Sewer Utilities
Municipal water service is currently provided by the City of Saratoga Springs. A 12-inch diameter
water main is located within South Broadway.
Northeast Fire Protection Systems Inc. conducted a hydrant flow test on March 27, 2018 on the 12"
water main in South Broadway between Canfield Street and Adelphi Street. The results of this flow
test indicate a static pressure of 73 pounds per square inch (psi). During the flow test hydrants
running at approximately 1,060 gallons per minute caused the residual pressure to drop
approximately 63 psi giving a theoretical available flow of approximately 2,607 gallons per minute at
20 pounds per square inch (psi). Refer to Attachment A for the Hydrant Fire Flow Test Summary.
Municipal sanitary sewer service is available from the City of Saratoga Springs at a sanitary sewer
manhole located adjacent to the proposed building. Wastewater entering this manhole is conveyed by
1
Engineering Report 176 South Broadway
Larkin Hospitality
2016144
gravity to the South and ultimately flows for conveyance and treatment at Saratoga County Sewer
District's wastewater treatment plant in Mechanicville.
IV. Proiected Water and Wastewater Flows
The tables below provide information on the anticipated wastewater flow rates for the project:
120 Sleeping Units 110 gpd/unit 13,200 gpd
12 Employees 15 gal each 180 gpd
Total 13,380 gpd
For the entire proj ect, average daily flow for wastewater is estimated to be 9.3 gallons per minute
(gpm)based on a 24-hour day. Estimated peak hourly flow is 38.2 gpm (4.11 x average).�
The estimated population served is based on 2 people per sleeping unit and 12 employees (252
total).
Average daily demand for water is estimated to be approximately equal to the wastewater flow
or 9.3 gpm. Instantaneous demand is calculated at 1.4 gpm3 for each unit giving a total
instantaneous demand of 168 gpm.
Summary of Design Flows
Water Consumption:
Project ADF = 13,380 gal/day (gpd)
Instantaneous Water Use = 168.0 gal/min (gpm)
Sanitar�v Sewer Flows:
Project ADF = 13,380 gal/day (gpd)
Peak Hourly Flow (PHF) = 38.2 gal/min (gpm)
For the purposes of input into the City of Saratoga Springs water model, we offer the following
estimated water demands for the proj ect:
• Average Day Demand is 9.3 gallons per minute(GPM) over the 24-hour period.
• Max Day Demand is 18.6 gallons per minute(GPM)based on twice the average.
• Peak Hourly Flow is 38.2 gallons per minute(GPM)based on 4.11 times the average.
• Fire Flow Demand is 1,000 gallons per minute (GPM)per ISO guidelines.
2
Engineering Report 176 South Broadway
Larkin Hospitality
2016144
V. Pronosed Water and Wastewater Utilities
Proposed Water Utilities
To service the project, the existing 12-inch ductile iron waterline on South Broadway is proposed
to be wet tapped. A new 6-inch lateral will be provided off the existing 12-inch waterline in
South Broadway and include a 6" gate valve, and thrust block.
Needed Fire Flow (NFF) calculations using the ISO Guide for Determination of Needed Fire
Flow are presented in Attachment B. The calculation shows a NFF of 2,250 gallons per minute.
This calculation is for a non-sprinklered building.
For a building protected by an automatic fire sprinkler system, the ISO states:
"The NFF for residential occupancies (such as apartment buildings, lodgings and rooming
houses, board and care facilities, hotels, motels and dormitories)protected by an automatic fire
sprinkler system installed in accordance with the general criteria ofNFPA 13R, Starzdard for the
Installation of S'prinkler Systems in Residential Occupancies up to and including Four�Stories in
Height, is the demand at the base of the automatic sprinkler riser".
"The minimum NFF is 1,000 gpm at 20 psi for a duration of 2 hours".
Using the minimum given by ISO, the NFF for this facility is 1,000 gpm.
Hydrant flow test data indicates approximately 2,600 gpm available at 20 psi. Based on this
information, there is adequate fire protection water supply available at the site.
Connections and appurtenances, including tapping sleeves and valves, mechanical joints, thrust
blocks, trenching, bedding, as well as testing and disinfection will all be specified in accordance
with City of Saratoga Springs standards. A backflow preventor will be located within the
proposed building.
Proposed Wastewater Utilities
Sanitary wastewater will be piped from the building via six-inch PVC lateral installed at a
minimum slope of 2.0%to the existing sanitary manhole located near the corner of South
Broadway and Todd Street. Peak hourly flow is estimated to be 38.6 gpm for the project.
The sanitary sewer lateral and manhole connections will be furnished, installed and tested
according to City of Saratoga Springs standards.
Notes
1. From Table 1, Appendix 75-A Wastewater Treatment Standards-Residential Onsite Systems
(110 gallons per day per bedroom)
3
Engineering Report 176 South Broadway
Larkin Hospitality
2016144
2. From Figure 1, GL UNIRB Recommended Standards for Wastewater Facilities
Q= (18 +P%z) =(4 +P%z)where P=population in thousands
3. From Table XXI, Communitv Water Systems Source Book,Ameen (1.4 gpm/residence).
4. From Table B-3, NYSDEC 2014 Design Standards for Wastewater Treatment Systems.
Attachments
Attachment A Water Design Information:
• Water Demand Calculations
• Hydrant Flow Test Data
• Needed Fire Flow (NFF) Calculations
Attachment B Sanitary Sewer Design Information:
• Sewer Flow Calculations
4
ATTACHMENT A
WATER DESIGN INFORMATION
176 South Broadway 1/31/2020
Larkin Hospitality
ESTIMATE MAXIMUM DAILY DEMAND:
GUEST SLEEPING UNITS
NUMBER OF UNITS 120
DESIGN FLOW = 110 .0 GPD/SF (NYSDEC)
Qd = 13, 200 GPD
EMPLOYEES
NO. OF EMPLOYEES 12
DESIGN FLOW = 15.0 GPD/EA (NYSDEC)
Qd = 180 GPD
MAX. DAILY DEMAND, Q = 13, 380 GPD (Qa through Qd)
POPULATION SERVED = 252
AVG. DAILY DEMAND = 9.3 GPM ( 24 HOURS )
PEAK HOURLY DEMAND = 38 .2 GPM ( AVG x 4 .11 )
INSTANTANEOUS DEMAND = 168 GPM 120 UNITS x 1 .4 GPM***
* WATER SUPPLY FIXTURE UNITS FROM NYS BLDG. CODE TABLE E103.2
** WATER SUPPLY DEMAND FROM NYS BLDG. CODE TABLE E103.3 (3)
*** AMEEN TABLE XIV "Instantaneous Water Demands for Residential Areas"
1 ATTACHMENT A
�a����`� �� � ° ` • ��
� �� � � . , �
, I �_ . = .s ^`{��_� a:".^ .;�_ �:�,t,t'��r�� s�.{ ,- .� ���-�" a 3G . w
� �:
P.O. BOX 508 BURNT HILLS, N.Y. 12027 (518) 885-111� FAX (518) 885-a526
HYDRAI�T FL�VII TEST REp�RT
LOCATION: � '���.i�V '.� i�,�.v'lt� '�i'�'t.=� `'j-.
TEST BY: ��'�..� G��S �)L��_T���� , `,_����. 'r'� �i-1�'�1�i�
DATE: -��2-�! �; T�ME: `�,-� 1L`�' k�vy(
TARGET HYD. LOCATION (B} �P���L,j,1`�j ��jt;-��,� �r ���,��¢,� �
TEST RESULTS: STATIC PRESSURE {Bj �l�^ PS!
RESEDUA� PRESSURE (6) 4-�� PSI WIT�i l��(vl.:> GPM FLOWING AT (A}
RESIDUAL PRESSURE (By PSI VIIITH GPfVI FLOWlNG AT (A)
FLC}'VV HYD. LOCATI�N (A) ��'��'v�l-�l�.J S�l) t�-t L.?�-' C..�r:��;�i L'-•�L��
1) PORT FLOWED (A) � DfAMET�R �..�Z
2) PORT FLOWED (A) DfAMETER
3� PQRT FLQWED (A} DIAMETER
1) PfTOT or FLOW METER READING (A� � PSI AT ���.�(J GPM
2) PITOT or FLOW METER R�ADING (A} PS! AT GPM
3) Pf70T or �LQW NiETER READING (A} PSI AT GPIVI
4UTLET �OEFFlCIENT US�D �� `-7 L�
(smooth 0.90) (square & sharp 0.88) {prajecting into barrel 0.77)
��.--�:, ��_�'� t� .�4 �..� �.��
�.zv= � �.v �. 1 / � "7 3-�� � j '�. �
`�y� P �c�l-i 13-iL7`� ' I�(!J�� � � � ' ��-'lv L/ ��i-'�F J _ �� � 1 ,r,
� ��
ESTIMA7E� FLOW AT 20 PSI `�.�C�~� GPM
LC)CAi"IDN SKETCH ATTACHED ? YES � f�Q
N1.g� GRAPH
GONTRACT N0. SFtLE i fVO. OF
NAME: L ,,_L• i � � SYST�M N0.
ADCIRESS: DA�'E:.....��,'Z `�
MfJ�TIPLY SCALE BY_ j�
PSI Q �
Q A O P �O �iT � ��
�
� � � I � � � � _ _ . .'-- .-. . � O
, . .� 1. ..._ ' � i , , .
�
. _._.._ ._._._.. �
i"`-I --i--� _.._ . - � _�...r.-'---_..`�. . �., _ ' _ ..T_�.- �--_ '. Y�.�._.._:___ �
4.
i . �
,._.�_.�.�� _�_. .._ ..__ . . ,
` , .�,�-.- -----`'- • _.� r .�--1.._..r..�_._.-- `- �- . -_..,,..�__ � . �
Y " . .� I. �. _i��r'-�-,I
� ---- �-. .� -'-�._..�__,-_^._ 4-�----._�_.."-'_' � '. i
�� --�- -.---�.-�_.�._
� ', ._-.��-i��---.�.�._.��.-----��_--. ___. .�_.'-'- __,�_i-�T.�N
�__. . , . . _. ._ � �
..-,.,__�—_�.�_�__—_ __._.. a_..___ ._---�- -- - -' j i �
_------___—_• '
� i --. __ _ ,.---- r—•
,—�.__�i_--- ---� -- �
. _..---y_. _--• ---- ' ! �
, i
+- - . ._ ._ _.___�_._____�—
._____ -- - ._ ._. .--____!. i
�•---_-__ — _...------ _. .____.:_.____-_ _ --..______---_-----
-- _ _. _ -. . ------. _____ �.---�---�
, ,
; ------- �__ ,__.
_._ _----------.. . --. _--
____ -_ _. .-- --.._.. ..
--------- '
'v�� — --------�_._._-�.�—i
.
__. ._ _ .. __ _ _ . ,
� - - ._
�- -----
r � _ . . . . _ . .. . . .. ,
- _ ___.._�__----- •
,.._. _._�._. . .______. __. -------�
. ._ ..._. ____ _ __. . _ _._----- ___ _
r------___ ___..-----.. . _.--- -- • --. � _ . ..
. _, . � �
,
._�� ----� ,_.�.. _ . . . . _-_, _.
, �
; -- --'-- - -
�—..,____�-�-------.�_.-----+--- - -------_____, _�.__
, . .____.__-_ i_ . ..
.._._�__-�----..�-..__, `..__ _ _._.. - _--- �_--._��.___
� _� I " --- __ i �.- _ ._-_ :=- --_�___—
-} ._._. --- i
� � �
- .�___� .._ �� �
-.- - _ ..
� T._,
' I �
_��---- __�___ - ----�------+�
I . �_ �_.,�__ i. __. �__ �
_ '
� �- - --
�� l-�- ---- -� _ . ._'Y—,____.,�_��a_ � _ �_,— !_.___,__ ' ,
m' ' � T�'_
� �
�' ' � _ . _.�— —Y.�. _.r�.�-
�
_` _. ___ -- __.�
� ._- .-__.� _,_ _�_— --
----�- 1
. ._. ___._,� �__ __ .
-. _. ..__T.-- --- -
} -.. __ _ .__.. ----- ,-._-__ _—_
r. ._ . -. �. . . ...___. _ ,
�
� .. _ .. ..�_-_ 4_. �. . ' __�___
--_. _ - ---�--.- ;
. , -�-, ..._.__._.
, — _ -- ---- •
� � ..__ . . . . ._. . ._. . .... ..__- -.-.i�._"_..-� '_�__" . _""�_'__.--._..,L�_� __
�! � :- '. �-�.__.__ ._�. .�.—_ _�..1 . teI '"'4 . — -.��..--�_.___
�
Q - ..._ . _. �. �___.. .��_ � ___..���_y� ..._..�.__.� _—_ .. �.�
/� � � • .. . I
r, LL .— .,...,.._�_. - ._.__ _.._� .. . ..— , ... � . . .. } «-`. ... � f� �
,^ '_ � .., �._..__- . .. , _ '__t�_.._..'_ . ' � _�_ '^
v v . . . _.._ . »..�-
r^ ... . � ._..._.� _—_•_ _•. _._ ... ......� _. . 1.�- I �j W
LL
V! ....-- -_...'-'. _._. _.__.. __...-«�_—"_f"
i ._�__...__....—_....-�... . _"."_.—"_ .'___•__.'""_ ._. .�_..
� . "'_'t."-,. ._."'__ ... ..._._._. ...'_
.. ._.—.—..'""'_'___' ""___.._._ ._. -"",.._._ _.'_ _' _""__'"__ .
.__..._._ ...__.
�'__'
} � � 1 __- �_. ., .
� "_..�.�._.. _ ...�.w��_,
� I
. ...._._.._._._. ._... �
� ._.__�.—'_..._.�.._""_. '__�..,��._ _"�"_
� . . ...... � . ,. . . . . . . . _ . � . _ _._ . . .... __ i
,.,. ... . . . . . .. . . '
` , ._. . . . _ ._ ._ .. .. __�.. .�,.__,.
r �� - -- . .. . . ._._ _ . . .. .`. � __.
� "- - - -- .. _._
. . --.._ . .._.� __._ _.. .._.._ . � «
, �� --- ---- .._..-_' ' ..
� _...___—�__�___..._- --__._. «�._-�_.�._ �
- - -- •- -- ' i
�.�.��-�,_
� �_-_..._�__._ . _— ._,__,__ --
� �" - -,. . __. i ...._�' v ��
; . _. ._}..._.�.�-._.'_. . -_..._'_._�-___�� . �...�1
__ -' . �._"�_ . _ ._ � __..._--.-.�
. , �-�--•---_'"".�"`�
�__..__.�..,.-.
-�_-T-'
' "_ .�_.�_�_. . ..__���_�_..._ ..".-_'. .
, "' __ __ _.__.._ ._.._.�"'"'_" ".""__._a_.__ ...
I . , . .. .�._-.-_" _�_._ ..-.,�_..u '
.' _ "....... ..___' " _'. .- _...... . _ _.._____._..__.._. . _. ..
-�_ .
i __'""_'."._-.__ "'_._.._'__-..._.._.__....._'".'--'�:
. ... . ._...'_'_'� __ .. __.... ....__._ . .
i
____._._.._ . ._ . _....._. _ . . _.- ..... _._�.i._..��
� '_ -.� _ . ""_' _ ,-
- __,�
_�_
{ .... .._.. . . ._ . . ._ . .. __ _.._. .. .......__ . . _ .-_'.''__' . _ _ '_ _
.
� • ..- ..� ._ �
.-T. _: . .. _ .. .� . . . -.- __.._.. ._.- _' ' "_._ .. " . ._ ., .__ �. a___
r i .-� .._._- . , .._ . _" _'_ .. �' �_^_
�_�
L_.-. . __'t . ....:.. _,_._" . -_ '_
J
1 . - .._. . _... _ - �- . -__ - .-_ - �L_
r _ _
�^ . '� ` ...__ . _..--. . __ _.
� _- � �,
� --l-- .-�_
� ... ... . . .f` . . ' . . .. ._. . __ '. _ .. __ .. ._' . . . . '"".� -' '-- , _ __"
�� ." ._ ._ .__ � � _ .-_ .... ._.. �_ � _. _ .. . __ 5 _
�--y I L_ . ._. , . . _. , _._ T:_,__ .
�G , ____�--�: _----_•- -_ - -�---f-�.___ ;.__�_— __._.,__a�__._
; , , — :
r___ _.._, ___--.-�-- - _ _. . --_--- �---
�—^_. _ -----�--- - -- __ . ._ . ___ � ___._._.
� -� _- -- � _ _
,___ _ . ______ .-- - -- --.
_ r.-- - -��- _-=i. ._� _ �---- �._�4..
- -- �.��__ _, ..� �__ - .
, _ ; . _ . .. ._ _. �_ �_._ .�.� _ - -_�� -{
~� --� ' - - __ __ � __ � - �=_
_ — .__ _ __ ,
-- ---fi + - # . . --- � � ,--
_ ___.� ;-} �. _ .� .� � _ I__-�-{ -,�-� - t -- L_�_r 1-- --� ~ r _, f
--- .�_ � —t
_�.- — -r=--r---i . .�w _,. . . I — I � r--�r-�
� ;TL —_--,. ,,.,.
a f , , -- r_..- -
` _}. _.���_ — t - ---a-- __ �-r-. ._.�
__ � ; .�--_. _ ..��----+ ��-�._.._ �_ .=_ _ _.� �:�.� .__ o
. _ _ �W. �-.__-4 , - - --
,. -- _w__ _ �
. _ , E-_ _.�_
�_��-___..,__�� �.�.,_ __:r_�= _
� �
, , .��_��.�.�_._ ._� ..-.
k___��---__ _ �_.=�- . �r�= _ .-
,� $_--;�,� _ ._ �.__ . I --:�
�: . � �__ � __.�_ T-- ��: �—��----�--T_��_.
_
___. � ___ � �,--; _. `� � t,=--r- F- , �
y-,�Y—
�+I r_�. --.��_..�t�_.- "_ ���.�.{... .-_._.�._ --•---� �.._� _..-�_���-1----".--•-
. �
� � � � +�-- -��- --� - = -� -- � --�-�-r-.:.-..
�__ -Y =�� - -- � ^ �
- T _
A -�. ... � ,. ,.- � ...a-.F T.. ...._` Y , --._. { . ..... ,-t- �_r.r-..
�. . .. �.--� - -.-:-��
N . _... ,...T�`_' _... � _ .._� ��.-4 � i�� �...��.- «�.��^`_'
. _.
__"""_ _ . a� ____ _. 1-_ --_.— - -+__.� _—r __ F. .:.__.
-- - � -----� � � - -- -
� _. _ � ._ ��l � �i�- � t
.
- - -- -- - _._..n .. � �_:� _
� --
_.� ._— ..._ _
_ .������-�� � ____. _ __� _�_�__.I ,_� =�-�--T - -_
, , _ _ _,��-
o � � _� , ; �'' ' , 4
0
GEM 4373(�RINTED fN 11.5.A.
f
S d PTR.2,60
�
- . ,_ !
CANFIEL� STREET
BR ADWAY
'i�:�i =;�
��',NING F��i���'
MAVIS TIR�
AQELPHI Si"{�EET "
�
�
BFt ADWAY
HY'D. r_�� �
5�,��IC -
_,
, , .
SARATOGA SPRINGS-WATER Ff�QW�EST-3-27-2018
�
� PREPARED BY: BCS DATE 01/30/20
CHECKED BY: DBH DATE 01/30/20
The L� GROUP SUBJECT: Intrada Saratoga Vecino Group - ISO NFF Calculations
Lnnds���e�.«h��e��u7P��nq�nee��_,q ��. PROJECT NUMBER: 2016144 SHEET 1 OF 1
Assumptions: Building is 4 stories.
Steel/wood framing.
120 sleeping units. Largest unit is 556 SF.
No exposures and communications.
Building design includes an automatic fire sprinkler system.
References: 1. Insurance Services Office (ISO) Guide for Determination of Needed Fire Flow
Edition 06-2014
Needed Fire Flow Formula (for a non-sprinklered building):
NFF� _�C�)���)I1.0 +(X+ P)�l
where:
NFF =the needed fire flow in gallons per minute
C; = a factor related to the type of construction and effective area
O; = a factor related to the type of occupancy
X = a factor related to the exposure hazard of adjacent buildings
P = a factor related to the communication hazard with adjacent buildings
CONSTRUCTION TYPE
Construction Class 2 Qoisted masonry construction)
Construction type coefficient (F) = 1.0 (Chapter 2, Reference 1)
Effective area (A) = 19,848 SF (7939 + (3) 7939/2) (50% of each additional floor)
C = 18FxA'�2
C = 2,535.86 gpm
C = 2,500 (rounded to nearest 250 gpm)
OCCUPANCY TYPE
Hotel Rooms
Occupancy combustibility class C-2 (Limited Combustibility)
Occupancy Factor (0) = 0.85 (Chapter 3, Reference 1)
EXPOSURES AND COMMUNICATION
Exposure Factor(X) = none (Chapter 4, Reference 1, exception for habitational)
Exposure and Communication Factor (X + P) = 0.00
CALCULATION
NFF = (C)(0)(1+(X+P))
NFF = 2,125.00 gpm
NFF = 2,250 gpm (rounded to nearest 250 gpm)
G:\Proj-2016\2016144_Turf_N_Spa_Larkin_South_Broadway\2016144Engineering_Data\OOWater\2016144 ISO NFF Worksheet.xlsx
ATTACHMENT B
SANITARY SEWER DESIGN INFORMATION
o pa
o H
N z
� W
� o M �
LL �
O C U
L "-' Q�
� � �
N� i� b9 U � � �
I� O �n rn � rn
00 O M Q O �
N � = O
�
�
O
ti
O
�
a
�
��
.. _
o > �
y �
LL �� �� � o
m = _ � �
� Q � � 3 �
O � � � LL U
LL Q LL LL
d _
�' 7 7 7
d LL LL LL
M
� �
T .--. fV
+.+ N
u a
O �
N
�
L
Q Y Y
N v O
� L T
3 � .,
o "
_ „ o
u v
� O >
N �
L \ � �
Q M � �
N � �
� O � �
O Q � �
— � �
w �
M a
� o
� �
� �
0 3
r; o
X LL
N C
� �
N
N
�
O
a
N
y a '^ `°
� �
w w nn u �
'�o O m o r� Oi o0 O
in o xj O O '..+
O o o m O O 'o
o p
u
3
0
v
cC E
� I� X
O
'� � = Q �
CC ;� Q' O_ O
� C� � � II
M .rl �� � X
F�'� �-I f0 p II � LL �
� � �''
� � y II � d' >j N
Fi� � = � O
� F i � � � II � � N LL p
� '��" y ca °C° ,n LL LL y � v
C � C G C L
� 's�"., a v � a "-�,° "-�,° 3 a
� � a a � o v v o v
'a d � in � � LL �