mcc report on pph shoreline erosion and dredging

7/28/2019 MCC Report on PPH Shoreline Erosion and Dredging

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1

WestShorelineTrail-

700-3erodingsegment

Princetonshoreline

--eroding

Surfers

Beach

--eroding

PillarPointHarbor--Proposedloca?onsforplacementofharbordredgematerial.

IHWL

SitesproposedbyHarborDistrict:

IH=Innerharborbeachatkayakstand,

aka“Perched”BeachWL=Wetlands/Mudflathabitat--noteroding.

6/12/1MCCpresenta?on

7/28/2019 MCC Report on PPH Shoreline Erosion and Dredging

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WestShorelineTrail--Popularpubliccoastalaccess

--Cri?calemergencyvehicleaccess--700-3sec?onthreatenedby

wave-ac?onerosion

2

--TrailownedbyHarborDistrict

--$65,000repairalreadybudgeted

--WatersnotinMarineSanctuary

--Aqua?cdisposalpermitrequired

7/28/2019 MCC Report on PPH Shoreline Erosion and Dredging

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PrincetonShoreline

County’sPrincetonPlanningUpdate,201-2015,willincludea

PrincetonShorelineManagementPlan.

• Preliminarystudies(2001)recommendacombina?onofrevetment,

stabilizedbeachnourishment,andpublicaccessimprovements.

• Finalplanwillincludedetailssuchasloca?onofauniformstringline,

consistentdesignsec?onrequirements,andmaintenanceobliga?ons.

• Erodedbystormwindwaves;starvedforsandreplenishmentduetobreakwater.

• HarborDistricthasjurisdic?ononlyuptomean-high-?deline.

• WatersnotinMarineSanctuary.

7/28/2019 MCC Report on PPH Shoreline Erosion and Dredging

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NorthernHalfMoonBayShorelineImprovementProject:

•  ArmyCorpsofEngineersisleadagency;HarborDistrictislocalsponsor.•  Studiesbeganin2009--s?llinfeasibilityphase.

•  Projectcouldconsiderrangeofsolu?onsincludingdredgingharborsand,

andcrea?ngopeningsinthejeyforsandoulow.

•  Permissionforbeachnourishmentwouldhavetobeobtainedfrom

MontereyBayNa?onalMarineSanctuary.

Surfers’Beach

Erosiongreatly

accelerateda3er

breakwater

construc?on

inlate50’sbyArmyCorps.

7/28/2019 MCC Report on PPH Shoreline Erosion and Dredging

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InnerHarborBeachatKayakStand,aka“Perched”Beach,uplanddredgedisposalsitesince1980’s

Beachaccesshasbeenimpairedbyincremental“pre-developmentdredgedisposal”

leavingraisedflatvegetatedareawithsteepdropofftonarrowremainingsandybeach.

HarborDistrictplansfortheareaincludebulkhead/pave/develop.

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InnerHarborWetlands/Mudflathabitatwaspar?almi?ga?onforhabitatlost

duringlaunchrampconstruc?onin1990.Thisareaisnoteroding.

HarborDistrictGeneralManagersuggestsburyingthiswetlandhabitat

withdredgematerial.