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ABPmer
Quayside Suite
Medina Chambers
Town Quay
Southampton
SO14 2AQ
2018
Managed realignment
Canada
Missaquash River, Bay of Fundy
-64.2723166666667
45.8409416666667
Saltmarsh
18 Hectares
Flood Risk Management
Habitat Creation
Improve Flood Protection
Reduce Flood Protection Costs
Other
The Converse Marsh was identified by the Nova Scotia Department of Agriculture (NSDA) as a possible area of realignment and marsh restoration due to loss of foreshore marsh, erosion of the dyke at the mouth of the Missaquash River, and the unfeasibility of repairing the dyke.
This project's objectives were to protect a transportation route, protect the adjacent Parks Canada Property, reduce the length of dyke infrastructure to increase longevity, and restore the salt marsh as a primary coastal defense.
Stakeholders were consulted, including the Nova Scotia Department of Agriculture, landowners, Parks Canada, Nova Scotia Lands and Forestry, and the Nova Scotia Department of Communities, Culture, and Heritage. An Archaeological Resource Impact Assessment was completed by Davis MacIntyre & Associates Limited to identify culturally significant resources or areas within the project site.
CB Wetlands & Environmental Specialists conducted hydrographic, topographic, vegetation, soil, and low-altitude aerial photographic surveys of the site as part of the feasibility and design and baseline ecological monitoring. Historical and contemporary information was acquired from the Dykeland Decision Support Tool.
The dyke bordering Parks Canada property was shifted south to avoid encroaching on Parks Canada land, and to avoid bisecting a historical tidal channel feature in the landscape. The construction of the new dyke was completed, and seeded in September 2018.
Construction was temporarily stopped after the dyke was built to allow discussions with the Kwilmu’kw Maw-Klusuaqn Negotiation Office and the Office of Aboriginal Affairs.
Four main goals of the monitoring program include: documenting the changing habitat conditions following restoration; evaluating the impacts of restored tidal flow; indicating whether additional intervention is required, and determining the ecological benefits of restoration. The monitoring program also involves the collection of ecological data such as geospatial attributes, hydrology, soils and sediments, and vegetation. Baseline data were collected in 2017.
ABPmer
Quayside Suite
Medina Chambers
Town Quay
Southampton
SO14 2AQ