17 fair Report Foundation System for Building Inspector 4-5-10Vreeland Design Associates
An integrative approach to residential design,engineering and site planning
Date:April 5,2010
To:Louis Hasbrouck
Inspector of Buildings/Zoning Enforcement
Northampton,MA 0 I 060
From:David Vreeland,P.E.
Vreeland Design Associates
Re:Elaine Yeskie,17 Fair St.,Northampton,MA:Construction in a flood plain of new home
to replace existing home destroyed by fire.
Dear Louis,
I have been consulting with Jim Harrity in regards to the foundation requirements for the
construction of a new home,at 17 Fair Street,for Elaine Yeskie,to replace the existing home
destroyed by fire.The lot,as is most of Fair Street,is in the flood plain of the Connecticut River.
The following is a summary of information for the proposed foundation:
1.The 100 Year Base Flood Elevation for this section of Fair Street is 125.0 feet with a
flood hazard classification zone of A-13.See the attached section of the Flood Insurance
Rate Map.I have marked the approximate location of the lot.
2.Richard Labarge,PLS,has prepared a Site Plan Sketch,dated 3/8/10,showing existing
ground elevations with an apparent average ground elevation at the location of the
proposed foundation to be 120.5'.See the attached copy of the Site Plan Sketch.
3.The enclosed area of the original house footprint was 1,198 sq.ft.See attached Assessor's
Property Record Card.Based on photos from Google Earth,see attached photos for the
north,west,and east elevations,of the original house and the topographic data from the
Site Plan,it appears that the approximate elevation of the first floor was around 122.5'.
The proposed enclosed area for the new house is 2,253 sq.ft.In accordance with 780
CMR:120.G501.4,the spaces below the Base Flood Elevation will not be used for
human occupancy,except for the proposed garage area.See the attached Foundation Plan
and Foundation Wall Detail.The garage area has an enclosed area of 552 sq.ft.and will
have three (3)engineered SmartVent"flood vents installed,two vents in the east wall
and one vent in the west wall.The crawlspace area has an enclosed area of 1,701 sq.ft.
and will have nine (9)engineered Smart Vent"flood vents installed,two vent in the east
wall,three vents in the south wall,and four vents in the west wall.The Smartv'ent"
flood vents have been approved by FEMA to provide for 200 sq.ft.of enclosed area per
vent.See the attached Engineered Flood Openings Certificate.
4.The short framed wall attached to the foundation and supporting the proposed house will
be constructed with 2x6 pressure treated studs at 16"on center with Yz"plywood or OSB
sheathing.The pressure treated sill plate will be bolted down with Yz"anchors at 4'-0"
o.c.,and 12"maximum from comers and all ends of sill members.
5.The mechanical and electrical systems will be installed above the Base Flood Elevation.
116 River Road,Leyden,MA 01337
Email:dvreeland@verizon.net
Phone:(413)624-0126
Fax:(413)624-3282
6.Since the enclosed area of the original house was not vented for flood waters there will be
a net gain in terms of flood water storage volume with the proposed house.Assuming an
average grade at the foundation of the original house at 121.0',an enclosed area of 1,198
sq.ft.,and with the base flood elevation =125.0',the loss of flood storage volume would
have been 125.0'-121.0'=4'x 1,198 sq.ft.=4,792 cu.ft.gross volume.Assuming an
approximate volume of 594 cu.ft.for the thickness of the original foundation,exterior
and interior framed walls,the net loss of flood storage volume for the original house was
approximately 4,792 sq.ft.-594 sq.ft.=4,198 cu.ft.Based on the proposed exterior
grade at the new foundation,as well as the proposed elevation of the crawlspace slab =
121.4',and the garage slab at 121.30'to 121.55',the loss of flood storage volume due to
foundation and framed walls,and exterior and garage stairs =260 cu.ft.Therefore,the
approximate net gain in flood storage volume for the proposed house is:4,198 cu.ft.
(original house net loss of flood storage volume)-260 cu.ft.(net loss proposed house)=
3,938 cu.ft.
Based on the attached documentation,the proposed foundation system appears to be in
compliance with 780 CMR:120.G501 FLOOD HAZARD ZONES.
Please contact me if you have any questions or need additional information.
Sincerely,
David Vreeland,PE
Vreeland Design Associates
2
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FLOOD INSURANCE RATE MAP
CITY OF
NORTHAMPTON,
MASSACHUSETTS
HAMPSHIRE COUNTY
COMMUNITY·PANEL NUMBER2501670002A
PAGE 2 OF 2
(SEE MAP INDEX FOR PAGES NOT P~INTEO)
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us,DEPARTMENT OF HOUSING
AND URBAN DEVELOPMENT
FEDERAL INSU RANCE ADMIN1STRATION../
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was extracted using F-MIT On-Line.This map does not reflect changes
or amendments which may have been made subsequent to the date on the
title block.For the latest product information about National Flood Insurance
ad maps check the FEMA Flood Map Store at www.msc-fema.gov
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Northampton,MA Property Detail Page 1 of3
City of Northampton,MA:Residential Property Record Card
New Search Property Type Classification Code Reference Card 1 of 1
Parcel -Location -Zoning -Assessment
Map-Block-Lot:25C-256-001
Location:17 FAIR ST
#Living Units:2
Class:R-I04
Zoning:
Neigborhood:20
Deed Book:4323
Deed Page:118
Assessment:
Land:
Building:
Total:
61,200
157,100
218,300
II Building Sketch
0/0 1 _Addition Information:
1///7 l--:='ENC.LOSED ~RE~~'I D,\/R..El='LA.t-.1t:>,PE:
http://www.northamptonassessor.us/noho/propertydetail.php?map_no=25C..256-001&pagecard=1
Dwelling Information
Style:
Year Built:
Story Height:
Attic:
Basement:
Total Rooms:
Bedrooms:
Full Baths:
Half Baths:
Exterior Walls:
Unfinished Area:
Ground Floor Area:
Total Living Area:
Finished Basement Living Area:
Basement Recreation Area:
Woodburning Fireplace
Stacks/Openings:
Conventional
1900
2
None
Full
8
4
2
o
AlumNinyl
o
971
2144
OXO
OXO
DescriptQrIArea'
A:2Fr/9,,'971sqfl
B:1Fr/B48sqft
C:1tr/B1E;~rt
D:OfP
294~qft
E::EFPI1Fr/B138sqft
.F:FUB.25sqft
:I,196 .fT"Z.
4/5JIC>
3/9/2010
"oI-.:tru
i 44'-6'
9 FLOOD VENTS ---
REQUIRED FOR
CRAWL SPACE
TOP FOUNDATION WALL =122.15'
CRAWLSPACE GRADE ELEV.=AVERAGE
EXTERIOR GRADE RJ 121.4'
NOTE:BOTTOM OF
FLOOD VENTS MUST
BE INSTALLED 12"OR
LESS ABOVE FINALGRADE.
"oI
o(Y)
-------SLAB AT BACK =121.55'
'----3 FLOOD VENTS
REQUIRED FORGARAGE
23'-OH
44'-6'
"oIr-,
Vreeland Design Associates
an integrative approach to residential design,engineering,
and site planning
116 River Rd.,Leyden,MA 01337
Contact:David Vreeland,PE
Phone (413)624-0126 -Fax (413)624-3282
YESKIE RESIDENCE
17 FAIR STREET
NORTHAMPTON,MA
01060
t
TITLE:FOUNDATION-PLAN
SK-1DATE:04.05.10
DRAWING NO.DRAWN:RTB CHECKED:
SeAL£:1/8"-1'-0"
wrfOM Cf FLOW vt:Nf
-----2")(14"RIMJOISf
~FINISHfLOC\([l[V.~126.3'
14"TJI
100 YfPl([3AS['fLOOD a ~127.00'
12"PlYSHfA111ING------._--20 PJ.S1W @ 16"DC
8"x145"
fNiAlNmfl?FlOOD vt:Nf ---2x6 p.r.PL-Aff
~fOP FOUNI?A11ON~122.17'
flNPt.~~12\.4'~
Af OR PBOVf fXffRIOR aRAl?f
?"CONCRrif fLOOR
2-#4 [3P1(
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~2-#4[3P1(
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Vreeland Design Associates
an integrative approach to residential design,engineering,
and site planning
116 River Rd.,Leyden,MA 01337
Contact:David Vreeland,PE
Phone (413)624-0126 -Fax (413)624-3282 SK-2
YESKIE RESIDENCE
17 FAIR STREET
NORTHAMPTON,MA
01060
TITLE:FOUNDATION-SECTION
DRAWN:RTB CHECKED:DRAWING NO.
DATE:04.05.10
SCAlE:1/2"=1'-0"
10.0 Engineered Flood Openings Certificate
Engineered Flood Openings Certificate
To satisfy requirements of the National Flood Insurance Program
This certification must be submitted to,and kept on file by,the local jurisdiction's permit authority.A copy
should be retained by the owner to demonstrate compliance in order to receive the best flood insurance rating.
The Smart VENT®and Flood VENTfM Foundation Flood Vent is certified as meeting the flood opening requirements for engineered openings
as set forth in the Federal Emergency Management Agency's National Flood Insurance Program regulations (44 CFR 60.3(c)(5»and ASCE 24-
98,provided it is installed according to the those references,as summarized below.Flood openings are required in enclosures below elevated
buildings,attached and detached garages,and accessory structures that meet the required limitations.For a copy of the report documenting this
certification dated June-21,2002,and a copy of the National Evaluation Service report NER 624,contact Smart VENT,Inc.,at 877/441-8368 or
visit:
www.smartvent.com
I do hereby certify that the Smart VENT®Louvered Foundation Flood Vent and the FloodVENTTM
Insulated Foundation Flood Vent opening (s)is designed for installation in buildings,will allow for the
automatic equalizing of hydrostatic flood forces on exterior walls by allowing for the automatic entry
and exit of floodwater during floods up to and including the base (IOO-year)flood.One Smart VENT®
or one FloodVENTTM for every 200 Sq.Ft.of enclosed area will provide sufficient hydrostatic pressure
equalization during a flood provided the installation limitations and instructions are followed as listed
below.To Calculate the required number of Smart VENTS®or FloodVENTSTM divide the Square
Feet of enclosed area by 200.
Exam Ie:A 2000 S .Ft.enclosed area re
Signature --"JL,-",==-__~-,---,!V=J...'_
Title S&.-.IIO;;nzroec.:r s=...•41..JIOER
Type of License j(E6IS~IZ@ PeOFESSlo"'''L.
License Number_.::::C>:.::S"o!....!!!~~/...J7:.!./-=-'-'£'=----_
*Project Name
*Project Address _
*Date Submitted j,_
*Required Fields*Professional Seal
Installation Limitations and Instructions
I.The Smart VENT®or FloodVENTTM unit provides sufficient automatic equalization of hydrostaric pressure on walls and
foundations of buildings located in flood hazard areas where the rate of rise is expected to be less than or approximately 5 feet
per hour.
2.Enclosed areas below otherwise elevated buildings,non-elevated attached and detached garages,and certain non-elevated
accessory structures located in flood hazard areas are to be used solely for parking of vehicles,building access,or storage.
3.Each enclosed area shall have at least two flood openings,installed on different sides of the enclosed area.
4.The bottom of the flood openings shall be no more than one foot above the adjacent finished ground level.
5.Installation must be in-accordance with manufacturer's instructions.
"REFERENCE ONLY~From FEMA TB 1-93
Guidance for Engineered Openings
enings in Foundation Walls
ational Flood Insurance Pro ram NFIP Technical Bulletin TB 1-93
"In situations where it is not feasible or desirable to meet the openings criteria stated previously,a design professional (registered engineer or
architect)may design and certify openings.This section provides guidance for such engineered designs.For openings not meeting all four
requirements for non-engineered openings listed on page 2 and 3 of TB 1-93,certification by a registered professional engineer or architect is
required.Such certification must be submitted to,and kept on file by,the community.These certifications must assure community officials that the
openings are designed in accordance with accepted standards of practice.A certification may be affixed to the design drawings or submitted
separately.It must include appropriate certification language,and the name,title,address,signature,type of license,license number,and professional
seal of the certifier."(TB 1-93 is available through Smart VENT®or online at www.fema.gov)
Form;SMRTIOO Rev.A
This form is the property of Smart VENT Inc.Modification or Duplication is Strictly Prohibited without authorization.
Certification of Engineered Opening (September 3,2002)8