HomeMy WebLinkAboutNOIPROJECT NARRATIVE - NA-1
154 SOUTH STREET, SOUTH YARMOUTH
PROPOSED PIER, PLATFORM, RAMP AND FLOAT RE-CONSTRUCTION
The area subject to this notice is land on the immediate shore of Bass River to the east of South
Street. Please see the locus maps for the exact location. The waterfront site contains an existing
pier, pile-supported platform, ramp and float. Coastal wetland resource areas in the immediate
area are Coastal Beach, Land Containing Shellfish and Land Under the Ocean.
The stairs, pier, platform, ramp and pile-held float is in need of replacement due to component
age and weathering. The pier has existed for many decades. The fairway portion of the pier and
a 128 s.f. platform is licensed by DPW License No. 1230 issued in 1930. A Notice of Intent was
filed with plans in 1988 resulting in an Order of Conditions (SE83-884) for the pier, ramp and
float shown on the attached plan minus the added 60 ft. float with ramp.
The shellfish study (Lowell) gave indications that a minor shellfish population (quahogs) exists
likely due to the swifter currents affecting quahog sets. Hydrographic survey data was collected
on May 12, 2023. The bottom elevations are given relative the NAVD 88 datum with
parenthetical depths at mean low water. Time of tide, height, or amplitude of tide as mentioned
in the Yarmouth regulations is not needed to determine depths of water at mean low tide. The
relationship MLW to NAVD88 is a known conversion of approx. 1.5
The proposed work activity to renovate the pier involves removal and appropriate disposal of the
existing components; placement and installation of the new pilings, approximately 2 ft. greater
separation between the pile bents with fewer pilings than the existing layout. Pilings shall be
hammer driven with exception of several near shore pilings. Pilings shall be of natural timber or
composite. The deck elevation shall be increased 2 ft. Hand carpentry tasks proceed to complete
the facility once the pile bents are installed. The ramp and float are then delivered and connected
to the anchor pilings. Two out-haul pilings exist to be maintained and are intended to remain
outboard of the float. The ramp and float shall be seasonally managed and stored at an offsite
location during the off season.
The work to accomplish the replacement pier installation is temporary with the bulk of the
structure with exception of the pilings raised well above the ground and river bottom. Improved
deck elevation is proposed though at present the dock alignment is intended to remain as is. Deck
plank spacing consistent with Yarmouth regulations in combination with the increase in deck
elevation has benefits for ambient light.
s.f.
