Attachment 4: Coastal Flood Inundation Mapping Project - Map Sheet 3 of 7

Coastal Flood Inundation Mapping Project

Capital Regional District

March 2020

Detailed Sea Level Rise Inundation Depth Map 0.5% AEP - 1.0m Relative Sea Level Rise

Legend

• Coastline (Green line)

Inundation Depth (m)

CRD

Map Area

Notes

1. Under the provisions of the Flood Hazard Statutes Amendment Act, 2003 (Bill 56), local governments have the role and responsibility for making decisions about local floodplain development practices, including decisions about floodplain bylaws within their communities. Information on floodplain management guidelines can be found in the BC Flood Hazard Area Land Use Management Guidelines.
2. Users must note the dates of base mapping, aerial photography, ground or bathymetric surveys and issue of mapping relevant to dates of development in the map area. Subsequent changes along the coastline and/or in the floodplain can affect inundation results and render site-specific map information obsolete.
3. Digital Elevation Model includes topographic surface data from GeoBC (2019), and bathymetric surface data from CHS and NOAA (dates vary). Elevations are reported with reference to CGVD2013 vertical datum. Map Projection is NAD83 UTM Zone 10N (CSRS).
4. Data sources: Orthoimagery (CRD, 2017);
5. Relative Sea Level Rise (RSLR) is an absolute increase in mean sea level, incorporating the effects of land subsidence or uplift.
6. For further information, please refer to Task 2 – Sea Level Rise Modelling and Mapping Report. These maps constitute Appendix E1 of said report.

Project No. 20192676 Approved by D. Forde, P.Eng. Drawn by C. Duncan and S. Haley Map Sheet 3 of 7