2016-17 Greenbank Marsh Restoration Issues Assessment

2016-17 Greenbank Marsh Restoration Issues Assessment
(Phase 1)

Objective
To facilitate an informed decision by Greenbank Beach & Boat Club membership to help resolve stormwater drainage issues on their community property.

Background
In 2016, WICD was awarded a grant from the WA State Recreation and Conservation Office (RCO) to perform the “Greenbank Marsh Restoration Issues Assessment” project focused on the following five components:

Hire legal counsel to clarify the legal rights, liabilities, and obligations of all parties who currently use the stormwater infrastructure on GBBC’s property.
Work with a consulting engineering firm to produce a thorough hydrologic inventory and assessment of the watershed.
Conduct an outreach program to gain input on the interests of the various stakeholders who rely upon the stormwater infrastructure.
Conduct various baseline studies of site characteristics, including tidal datum, characterizing sediment transport dynamics along the beach, characterizing basic hydrogeology conditions, and performing wetland and cultural resource surveys.
Carry out additional conceptual-level engineering design tasks to update the 2013 preliminary engineering feasibility study. Conceptual design options will address and incorporate the results of the previous four project elements.

Update
In early 2017, GBBC membership selected an "open channel" design as the preferred alternative to address drainage issues. Following a June 2017 community meeting, representatives from GBBC, WICD, and neighboring property owners formed the Greenbank Marsh Working Group to provide a forum for stakeholders to be involved in the design and planning process of GBBC's restoration project.
The Issues Assessment phase of this project was successfully completed in November 2017 and the next phase, Restoration Design, is expected to begin in 2018.

Scroll down to view project reports, conceptual designs, pictures, and contact information.

CLICK HERE to view the Greenbank Marsh Project main page.

Current Project Site Features
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Open channel conceptual design
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Greenbank Marsh Restoration Issues Assessment Reports

Greenbank Marsh Outreach Summary
February 7, 2018

Greenbank Marsh Wetland Reconnaissance Report
June 22, 2016

Greenbank Watershed Sub-Basin Boundary Map
October 19, 2016

Greenbank Marsh Legal Evaluation
October 18, 2017

Greenbank Marsh Hydrologic & Hydraulic Report
May 2, 2017

Greenbank Marsh Archaeological Investigation Report October 5, 2016

Greenbank Marsh Conceptual Design Report
August 10, 2017

Greenbank Marsh Geotech Memo & Well Installation Report January 31, 2017

Greenbank Wave Analysis June 29, 2017

Greenbank Watershed Sub-Basin Summary
November 2, 2016

Conceptual Design Plans August 10, 2017

Note: This grant deliverable was completed on August 10, 2017. Click the image below or here to view this document.
This is a preliminary design and not intended for construction.

View Historical and Current Photos of Greenbank Beach

Greenbank Hotel, 1900.
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Aerial view of Greenbank Beach, 1942.
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Aerial view of Greenbank Beach, 1963.
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Google Earth of Greenbank Beach, 2016.
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