Streaming Media

Presentation Abstract

Coastal processes function on a larger scale than most individual properties can appropriately accommodate. Property frontages typically range on the order of 10s of meters, whereas coastal processes (such as sediment transport) often span 100s of meters or more. These scales pose a challenge for implementing natural and nature-based approaches on many individual properties. Neighbourhood-scale designs have the potential to avoid the site limitations posed by individual properties as well as distribute costs and benefits across a broader community. However, there are few examples of neighbourhood-scale projects being implemented within the Salish Sea to date. Northwest Hydraulic Consultants (NHC) – on behalf of the Stewardship Centre for British Columbia (SCBC) and in collaboration with the Town of Qualicum Beach and the Comox Valley Regional District – developed three neighbourhood-scale coastal adaptation concepts that incorporate Green Shores® for Homes principles and guidance. As part of the project, three conceptual designs were developed for two sites on the east coast of Vancouver Island. A marsh terrace concept was developed to replace an existing hard revetment, and a vegetated backshore nourishment was designed to adapt to sea level rise for two sections of shoreline at a site in Royston, BC. A gravel beach and headland concept was also developed to re-naturalize a long section of existing hardened shoreline in Qualicum Beach, BC. This presentation will introduce the project goals, the project sites, design concepts and anticipated costs, compliance with Green Shores® for Homes guidance, as well as relevant local, provincial, and federal regulatory agency requirements. Challenges and opportunities for future implementation (such as permitting requirements and cost-sharing) will be highlighted.

Session Title

Communities and Ecosystems

Conference Track

SSE6: Human-Nature Systems

Conference Name

Salish Sea Ecosystem Conference (2022 : Online)

Document Type

Event

SSEC Identifier

SSE-traditionals-285

Start Date

27-4-2022 9:45 AM

End Date

27-4-2022 11:15 AM

Type of Presentation

Oral

Genre/Form

conference proceedings; presentations (communicative events)

Subjects – Topical (LCSH)

Shorelines--Environmental aspects--British Columbia--Vancouver Island; Shorelines--British Columbia--Vancouver Island--Management; Shore protection--British Columbia--Vancouver Island; Waterfronts--Environmental aspects--British Columbia--Vancouver Island; Coastal zone management--British Columbia--Vancouver Island

Geographic Coverage

Vancouver Island (B.C.)

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Type

Moving Image

Language

English

Format

Video

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Apr 27th, 9:45 AM Apr 27th, 11:15 AM

Neighbourhood-Scale Coastal Adaptation with Green Shores: Challenges and Opportunities

Coastal processes function on a larger scale than most individual properties can appropriately accommodate. Property frontages typically range on the order of 10s of meters, whereas coastal processes (such as sediment transport) often span 100s of meters or more. These scales pose a challenge for implementing natural and nature-based approaches on many individual properties. Neighbourhood-scale designs have the potential to avoid the site limitations posed by individual properties as well as distribute costs and benefits across a broader community. However, there are few examples of neighbourhood-scale projects being implemented within the Salish Sea to date. Northwest Hydraulic Consultants (NHC) – on behalf of the Stewardship Centre for British Columbia (SCBC) and in collaboration with the Town of Qualicum Beach and the Comox Valley Regional District – developed three neighbourhood-scale coastal adaptation concepts that incorporate Green Shores® for Homes principles and guidance. As part of the project, three conceptual designs were developed for two sites on the east coast of Vancouver Island. A marsh terrace concept was developed to replace an existing hard revetment, and a vegetated backshore nourishment was designed to adapt to sea level rise for two sections of shoreline at a site in Royston, BC. A gravel beach and headland concept was also developed to re-naturalize a long section of existing hardened shoreline in Qualicum Beach, BC. This presentation will introduce the project goals, the project sites, design concepts and anticipated costs, compliance with Green Shores® for Homes guidance, as well as relevant local, provincial, and federal regulatory agency requirements. Challenges and opportunities for future implementation (such as permitting requirements and cost-sharing) will be highlighted.