HomeMy WebLinkAbout58 SE48_3115 Revised Project plans 05_17_19
PRINCIPALS
Theodore A Barten, PE
Margaret B Briggs
Dale T Raczynski, PE
Cindy Schlessinger
Lester B Smith, Jr
Robert D O’Neal, CCM, INCE
Andrew D Magee
Michael D Howard, PWS
Douglas J Kelleher
AJ Jablonowski, PE
Stephen H Slocomb, PE
David E Hewett, LEED AP
Dwight R Dunk, LPD
David C Klinch, PWS, PMP
Maria B Hartnett
ASSOCIATES
Richard M Lampeter, INCE
Geoff Starsiak, LEED AP BD+C
Marc Bergeron, PWS, CWS
3 Mill & Main Place, Suite 250
Maynard, MA 01754
www.epsilonassociates.com
978 897 7100
FAX 978 897 0099
21597/2018/Expanded Project/NOI/Public Hearing Comments
May 17, 2019
Nantucket Conservation Commission Via Electronic Mail and U.S. Mail
2 Bathing Beach Road
Nantucket, MA 02554
Subject: File No. SE48-3115 - Expanded Baxter Road and Sconset Bluff Storm
Damage Prevention Project - Revised Project Plans
Dear Commission Members:
On behalf of the Siasconset Beach Preservation Fund (“SBPF”), Epsilon Associates,
Inc. (“Epsilon”) submits the attached revised plan set titled “Expanded Baxter Road
and Sconset Bluff Storm Damage Prevention Project Permit Drawings,” comprised
of six (6) sheets and dated May 15, 2019 to replace the project plans previously
submitted for the above referenced project.
The minor plan revisions depicted on the attached plans show the following:
1,916 foot (“ft”) southerly geotube extension (55 Baxter Road to 87
Baxter Road) includes the southern return,
767 ft northerly geotube extension (105 Baxter Road to 115 Baxter
Road) includes return that extends onto 117 Baxter Road, and
Coastal Bank profiles on Sheet 040 depict the 2018 Coastal Bank survey
which shows Coastal Bank retreat from original plan baseline.
Based on the revised project extent and the updated Coastal Bank survey, alterations
to coastal wetland resources are the following:
Coastal Bank: 2,683 ft (190 ft reduction from original proposal)
Coastal Beach: 104,860+ square feet (“s.f.”) covered by geotubes (increase
due to bank retreat)
Nantucket Conservation Commission 2
Re: DEP File No. SE 48-3115
May 17, 2019
105,000 s.f. temporary trench and restored in-situ (no change
in trench design)
The Expanded Baxter Road and Sconset Bluff Storm Damage Prevention Project
presented on the revised plans is eligible for approval via an Order of Conditions
(“OOC”) under both the Massachusetts Wetlands Protection Regulations [310 CMR
10.00 et seq.] (“WPA Regulations”) and the Town of Nantucket Conservation
Commission Wetland Protection Regulations (Bylaw Regulations”) with the basic
project parameters relative Coastal Bank as follows.
State Regulations:
2,043 ft (76%) of the proposed geotubes are proposed to protect pre-1978
dwellings, this includes the northerly and southerly returns; and
640 ft (24%) of the geotubes span across two distinct vacant lots (340 ft at
85 Baxter Road and 300 ft at 107/107A Baxter Road) to protect abutting pre-
1978 dwellings.
Bylaw Regulations:
1,838 ft (68.5%) of the proposed geotubes are proposed to protect locally
defined pre-1978 dwellings, this includes the northerly and southerly
returns;
640 ft (23.9%) of the geotubes span across two distinct vacant lots (340 ft at
85 Baxter Road and 300 ft at 107/107A Baxter Road) to protect adjacent
infrastructure and abutting pre-1978 dwellings
205 ft (7.6%) of the geotubes span across two (2) separate post-1978 re-
placement dwellings (105 ft at 69 Baxter Road and 99ft at 81 Baxter Road).
We request that the attached project plans be entered in the file to replace those
previously submitted by the applicant. These minor changes do not change any of
the impact assessments or mitigation measures discussed throughout this review
process.
Nantucket Conservation Commission 3
Re: DEP File No. SE 48-3115
May 17, 2019
Please contact me at 978-897-7100 or via email at ddunk@epilonassociates,com
with any question regarding the attached plans.
Sincerely,
EPSILON ASSOCIATES, INC.
Dwight R. Dunk, LPD, PWS, BCES
Principal
encl: Expanded Baxter Road and Sconset Bluff Storm Damage Prevention Project
Permit Drawings’ dated May 15, 2019.
cc: MassDEP-SERO
J. Posner, SBPF
A. Gasbarro, Nantucket Eng. & Survey
S. Cohen, Cohen & Cohen Law, PC
G. Wood, Rubin and Rudman, LLP
G. Thomson, W.F. Baird & Assoc.
L. Smith, Epsilon
PREPARED FOR:12716 - C - 0002924 MARKETPLACE DRIVE, SUITE 200MADISON, WI USA 53719W.F. Baird & AssociatesCoastal Engineers Ltd.PREPARED BY:PROJECTLOCATIONMARTHA'SVINEYARDATLANTICOCEANNANTUCKETN.T.SN.T.SPROVIDENCENEWBEDFORDATLANTICOCEANPURPOSE: BLUFF STABILIZATIONDATUM: NAD83EXPANDED BAXTER ROAD ANDSCONSET BLUFF STORM DAMAGEPREVENTION PROJECTSCONSET BEACHCOUNTY OF NANTUCKETSTATE OF MASSACHUSETTSPO BOX 2279NANTUCKET, MA 02554ADJACENT PROPERTY OWNERS: SEE APPLICATIONAGENT: EPSILON ASSOCIATES, INC.DATE: 2019-05-15SHEET 1 OF 6VICINITY MAPFOR PERMIT USE ONLYNOT FOR CONSTRUCTIONPROJECTLIMITSSIASCONSET
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51005558566463718659606261656867697072376737875807779828182A84838590879299 114113919493969897100104101106105107108107A110109112116115117120119GRAPHIC SCALE FEET0500250125NORTHREVISIONSREV(T.I.)T.I.TYPE OFISSUEDESCRIPTIONDRN DSN APR YYYY-MM-DDREV.PREPARED FOR:5/15/2019 1:21:00 PMDate Plotted:P:\12643.101 SCONSET BEACH PRESERVATION FUND\H - CADD\WORKING DRAWINGS\C PERMIT\CONSERVATION COMMISSION PERMIT APPLICATION\12643.101-C-010-020-040.DWG
DRAWING NUMBER:DATE:PREPARED BY:W.F. Baird & Associates Ltd.(A) INFORMATION(B) REVIEW(D) TENDER DOCUMENT(F) RECORD(E) CONSTRUCTION DOCUMENT(C) PERMITSCONSET BEACH PRESERVATION FUNDEXISTING CONDITIONS12643C010 B 2019-02-08A CFOR PERMITBKC LMA GCT 2018-01-04B CADDED WETLAND RESOURCE AREASBKC GCT GCT 2019-02-08GENERAL NOTES1. CONTOURS ARE DERIVED FROM THE 2017 LIDAR SURVEY AND THE FALL 2016 WOODS HOLE TOPO ANDBATHYMETRY SURVEY.2.ELEVATIONS ARE IN FEET AND ARE REFERENCED TO MLW '92.3.GEOTUBES TO BE FIELD FIT TO MINIMIZE EXCAVATION.TN-1TN-2122TN-3COASTAL BEACHCOASTAL BANKCOASTAL DUNELAND UNDER OCEANMLW (0')BOTTOM OF BANK(APPROX. +15')TOP OF BANK(VARIES)EXISTING BURIED GEOTUBESBELOW +15' ARE CONSIDEREDCOASTAL BEACH100 YR FLOOD PLAIN (+7.68) -LAND SUBJECT TO COASTALSTORM FLOWAGEFOR PERMITTING PURPOSES ONLY
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51005558566463718659606261656867697072376737875807779828182A84838590879299 114113919493969897100104101106105107108107A110109112116115117120119FOUR SAND FILLED 45'CIRCUMFERENCE GEOTUBES (TYP.)GEOTUBE RETURNTOP OF HIGHEST BAGEL. - +25.0GEOTUBE RETURNTOP OF HIGHEST BAGEL. - +25.0EXISTING JUTE AND COIRTEMPORARY STRUCTURETO BE REMOVED.EXISTING GEOTUBEEXACT LOCATION ANDELEVATIONS TO BE VERIFIEDTIE IN TO EXISTING GEOTUBESAS DIRECTED TO SITE ENGINEERGEOTUBE #4CREST EL. - +25.0'GEOTUBE #3CREST EL. - +18.0'GEOTUBE #2CREST EL. - +11.0'GEOTUBE #1CREST EL. - +4.0'FOUR SAND FILLED 45'CIRCUMFERENCE GEOTUBES (TYP.)4 - SAND FILLED 45'CIRCUMFERENCE GEOTUBES (TYP.)TIE IN TO EXISTING GEOTUBESAS DIRECTED BY SITE ENGINEERGRAPHIC SCALE FEET0500250125ANCHOR TUBE(TYP.)NORTHREVISIONSREV(T.I.)T.I.TYPE OFISSUEDESCRIPTIONDRN DSN APR YYYY-MM-DDREV.PREPARED FOR:5/15/2019 2:29:40 PMDate Plotted:P:\12643.101 SCONSET BEACH PRESERVATION FUND\H - CADD\WORKING DRAWINGS\C PERMIT\CONSERVATION COMMISSION PERMIT APPLICATION\12643.101-C-010-020-040.DWG
DRAWING NUMBER:DATE:PREPARED BY:W.F. Baird & Associates Ltd.(A) INFORMATION(B) REVIEW(D) TENDER DOCUMENT(F) RECORD(E) CONSTRUCTION DOCUMENT(C) PERMITSCONSET BEACH PRESERVATION FUNDPROPOSED PLANVIEW12643C020 C 2019-05-15A CFOR PERMITBKC LMA GCT 2018-01-04B CADDED WETLAND RESOURCE AREASBKC GCT GCT 2019-02-08C CREVISED NORTH ENDBKC GCT GCT 2019-05-1504001040020400304004TOP OF WATER TRENCH (± +5.0)BOTTOM OF WATERTRENCH (± -3.0)GENERAL NOTES1. CONTOURS ARE DERIVED FROM THE 2017 LIDAR SURVEY AND THE FALL 2016 WOODS HOLE TOPO ANDBATHYMETRY SURVEY.2.ELEVATIONS ARE IN FEET AND ARE REFERENCED TO MLW '92.3.GEOTUBES TO BE FIELD FIT TO MINIMIZE EXCAVATION.TN-1TN-2122TN-3FOR PERMITTING PURPOSES ONLY100 YR FLOOD PLAIN (+7.68) -LAND SUBJECT TO COASTALSTORM FLOWAGE04005
GRAPHIC SCALE FEET0500250125NORTHREVISIONSREV(T.I.)T.I.TYPE OFISSUEDESCRIPTIONDRN DSN APR YYYY-MM-DDREV.PREPARED FOR:5/15/2019 12:37:56 PMDate Plotted:D:\PROJECTS\12643.101 SCONSET BEACH PRESERVATION FUND\H - CADD\WORKING DRAWINGS\C PERMIT\CONSERVATION COMMISSION PERMIT APPLICATION\12643.101-C-030-050.DWG
DRAWING NUMBER:DATE:PREPARED BY:W.F. Baird & Associates Ltd.(A) INFORMATION(B) REVIEW(D) TENDER DOCUMENT(F) RECORD(E) CONSTRUCTION DOCUMENT(C) PERMITSCONSET BEACH PRESERVATION FUNDPROPOSED PLANVIEW12643C030 B 2019-05-15A CFOR PERMITBKC LMA GCT 2018-01-04B CADDED WETLAND RESOURCE AREASBKC GCT GCT 2019-02-08C CREVISED NORTH ENDBKC GCT GCT 2019-05-1505005050060500705008GENERAL NOTESSAND TEMPLATE CRESTTOE OF SAND TEMPLATESAND TEMPLATE CRESTTOE OF SAND TEMPLATEAPPROXIMATE SAND TEMPLATEINTERCEPT WITH BLUFFEXISTING JUTE AND COIRTEMPORARY STRUCTURETO BE REMOVED.EXISTING GEOTUBEEXACT LOCATION ANDELEVATIONS TO BE VERIFIED1. CONTOURS ARE DERIVED FROM THE 2017 LIDAR SURVEY AND THE FALL 2016 WOODS HOLE TOPO ANDBATHYMETRY SURVEY.2.ELEVATIONS ARE IN FEET AND ARE REFERENCED TO MLW '92.APPROXIMATE SAND TEMPLATEINTERCEPT WITH BLUFFCOASTAL BEACHCOASTAL BANKCOASTAL DUNELAND UNDER OCEANMLW (0')BOTTOM OF BANK(APPROX. +15')100 YR FLOOD PLAIN (+7.68) -LAND SUBJECT TO COASTALSTORM FLOWAGEFOR PERMITTING PURPOSES ONLY
REVISIONSREV(T.I.)T.I.TYPE OFISSUEDESCRIPTIONDRN DSN APR YYYY-MM-DDREV.PREPARED FOR:5/15/2019 2:32:51 PMDate Plotted:P:\12643.101 SCONSET BEACH PRESERVATION FUND\H - CADD\WORKING DRAWINGS\C PERMIT\CONSERVATION COMMISSION PERMIT APPLICATION\12643.101-C-010-020-040.DWG
DRAWING NUMBER:DATE:PREPARED BY:W.F. Baird & Associates Ltd.(A) INFORMATION(B) REVIEW(D) TENDER DOCUMENT(F) RECORD(E) CONSTRUCTION DOCUMENT(C) PERMITSCONSET BEACH PRESERVATION FUNDTYPICAL SECTIONS12643C040 C 2019-02-08A CFOR PERMITBKC LMA GCT 2018-01-04B CADDED 2018 SURVEYBKC GCT GCT 2018-09-13C CADDED WETLAND RESOURCE AREASBKC GCT GCT 2019-02-08GRAPHIC SCALE FEET0502512.502TYPICAL GEOTUBE SECTION040ANCHOR TUBEEXISTINGGRADEFOUR SAND FILLED 45'CIRCUMFERENCE GEOTUBES (TYP.)-3.0+4.0+11.0+18.0+25.019' ±7.0' ±7.5' ±GEOTEXTILE100 YR STORM W.L (+7.68)5.0'PROPOSED SAND TEMPLATE5.0'+5.05.0' ±7.5' ±01TYPICAL GEOTUBE SECTION04003TYPICAL GEOTUBE SECTION04004TYPICAL GEOTUBE SECTION04021GENERAL NOTES1.ELEVATIONS ARE REFERENCED TO MLW '92.2017 SURVEY2017 SURVEY2017 SURVEY2017 SURVEY100 YR STORM W.L (+7.68)100 YR STORM W.L (+7.68)100 YR STORM W.L (+7.68)WATERTRENCH AREA2.0'2.0'2.0'2.0'2018 SURVEY2018 SURVEY2018 SURVEY2018 SURVEYFOR PERMITTING PURPOSES ONLY
REVISIONSREV(T.I.)T.I.TYPE OFISSUEDESCRIPTIONDRN DSN APR YYYY-MM-DDREV.PREPARED FOR:5/15/2019 2:44:09 PMDate Plotted:P:\12643.101 SCONSET BEACH PRESERVATION FUND\H - CADD\WORKING DRAWINGS\C PERMIT\CONSERVATION COMMISSION PERMIT APPLICATION\12643.101-C-030-050.DWG
DRAWING NUMBER:DATE:PREPARED BY:W.F. Baird & Associates Ltd.(A) INFORMATION(B) REVIEW(D) TENDER DOCUMENT(F) RECORD(E) CONSTRUCTION DOCUMENT(C) PERMITSCONSET BEACH PRESERVATION FUNDTYPICAL SECTIONS - SAND TEMPLATE12643C050 C 2019-02-08A CFOR PERMITBKC LMA GCT 2018-01-04B CVEGETATION ADDED ON TOP OF SAND TEMPLATEBKC LMA GCT 2018-01-29C CREVISED PERMITBKC GCT GCT 2019-02-08GRAPHIC SCALE FEET0502512.5+30 ±100 YR STORM W.L (+7.68)SAND TEMPLATE CREST05TYPICAL SAND TEMPLATE SECTION050GENERAL NOTES1.ELEVATIONS ARE REFERENCED TO MLW '92.2017 (WOODS HOLE LIDAR)100 YR STORM W.L (+7.68)100 YR STORM W.L (+7.68)100 YR STORM W.L (+7.68)TOE OF SAND TEMPLATESAND TEMPLATE INTERCEPT WITH BLUFF+30 ±SAND TEMPLATE CREST2017 (WOODS HOLE LIDAR)TOE OF SAND TEMPLATESAND TEMPLATE INTERCEPT WITH BLUFF+30 ±SAND TEMPLATE CREST2017 (WOODS HOLE LIDAR)TOE OF SAND TEMPLATESAND TEMPLATE INTERCEPT WITH BLUFF+30 ±SAND TEMPLATE CREST2017 (WOODS HOLE LIDAR)TOE OF SAND TEMPLATESAND TEMPLATE INTERCEPT WITH BLUFF07TYPICAL SAND TEMPLATE SECTION05008TYPICAL SAND TEMPLATE SECTION05006TYPICAL SAND TEMPLATE SECTION050BFOR PERMITTING PURPOSES ONLY