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Full-Text Articles in Physical Sciences and Mathematics

Shoreline Armoring Removal: Assessment Of Restoration Effectiveness In The Salish Sea, Jason David Toft, Jeffery R. Cordell, Megan Nichols Dethier, Emily Howe, Hannah Faulkner Apr 2018

Shoreline Armoring Removal: Assessment Of Restoration Effectiveness In The Salish Sea, Jason David Toft, Jeffery R. Cordell, Megan Nichols Dethier, Emily Howe, Hannah Faulkner

Salish Sea Ecosystem Conference

Shoreline armoring removal is becoming a common restoration technique in the nearshore of the Salish Sea, yet we lack a comprehensive understanding of the ecological benefits obtained, and how such an understanding could be used to inform management recommendations and educate diverse audiences. To address this knowledge gap, we studied effects of shoreline armor removal at 10 sites, expanding the spatial framework of what was previously known by collaborating across academic (University of Washington), agency (Washington Department of Fish and Wildlife), and citizen science groups. Each site had three beach types of: (1) restored beaches with armoring removed 1-11 years …


Assessing Bulkhead Removal And Shoreline Restoration Using Boat-Based Lidar, George M. Kaminsky, Hannah Drummond, Heather M. Weiner, Diana Mccandless, Hacking Amanda Apr 2018

Assessing Bulkhead Removal And Shoreline Restoration Using Boat-Based Lidar, George M. Kaminsky, Hannah Drummond, Heather M. Weiner, Diana Mccandless, Hacking Amanda

Salish Sea Ecosystem Conference

The Washington State Department of Ecology performed before and after boat-based lidar surveys of a shoreline restoration project involving the removal of ~800 feet of armoring from the base of a historic feeder bluff at Edgewater Beach, along Eld Inlet in South Puget Sound. As part of the restoration project, 700 feet of bulkheads, two rock revetments, a large wood and rock groin, and several large boulders were removed or realigned from the site in fall 2016. Removal of the armoring is expected to reconnect the historic feeder bluff at the updrift end of the project site with the adjacent …


High Resolution Mapping Of Puget Sound Shorelines, George M. Kaminsky, Heather M. Weiner, Amanda Hacking, Diana Mccandless Apr 2018

High Resolution Mapping Of Puget Sound Shorelines, George M. Kaminsky, Heather M. Weiner, Amanda Hacking, Diana Mccandless

Salish Sea Ecosystem Conference

In an effort to collect high-resolution baseline coastal topographic data of beaches and bluffs around the Puget Sound and Strait of Juan de Fuca, the Washington State Department of Ecology Coastal Monitoring & Analysis Program (CMAP) conducted a series of boat-based lidar surveys in October 2013, May through September 2015, and May 2016 at a total of 16 sites spanning 220 km of shoreline and over two dozen drift cells. The drift cells were selected based on a rigorous and systematic geospatial analysis of bluff-backed beaches for their potential for significant bluff sediment supply to intact shorelines identified as having …


Puget Sound Shoreline Inventory And Assessment Using Boat-Based Lidar, George M. Kaminsky, Alice Henderson, Heather Weiner, Hannah Drummond Apr 2018

Puget Sound Shoreline Inventory And Assessment Using Boat-Based Lidar, George M. Kaminsky, Alice Henderson, Heather Weiner, Hannah Drummond

Salish Sea Ecosystem Conference

Boat-based lidar of Puget Sound shorelines collected by the Washington State Department of Ecology are developed to provide a comprehensive inventory, classification, and analyses of site conditions and variability. For example, quantitative metrics of shoreline characteristics are derived from DEMs such as bluff crest height, bluff slope, bluff toe elevation, beach slope, and shoreline armoring elevations. These metrics can then be compiled and compared within and among drift cells to determine regional variability such as differences between updrift and downdrift beaches and the effect of fetch, orientation, and other exposure variables. Certain features can also be correlated to characterize how …


Soft Shore Protection: Lessons Learned From 20 Years Of Project Design And Implementation, Jim Johannessen, Alexis Blue, Andrea Maclennan Apr 2018

Soft Shore Protection: Lessons Learned From 20 Years Of Project Design And Implementation, Jim Johannessen, Alexis Blue, Andrea Maclennan

Salish Sea Ecosystem Conference

Hard armor structures, including bulkheads, seawalls, soldier piles, and other structures are present at 29% of Washington shores of the Salish Sea, as documented in mapping conducted by CGS for the ESRP Beach Strategies project . Hard armor adversely affects nearshore ecosystems by disrupting natural processes of sediment input and transport, reducing resiliency of down-drift coastal areas to impacts of sea level rise, and impairing essential forage fish spawning and other habitats. Soft shore protection, also referred to as sustainable shorelines or nature based solutions, allows for slowing erosion while maintaining natural processes. Soft sure protection design and implementation have …