Dike design and construction guidelines

Good dike design practice involves a variety of activities, each aimed at ensuring that the new, repaired, upgraded or changed works are constructed to an appropriate standard.

The following guide has been developed to present basic principles used in the design and construction of dikes. The guidelines discuss sound engineering practices and help to address issues that a design professional may typically encounter.

Sea dikes

This document provides guidelines for the design of sea dikes to protect low lying lands that are exposed to coastal flood hazards arising from their exposure to the sea and to expected sea level rise due to climate change. The guide is for information only, and does not represent official B.C. Government policy.


This document provides guidance and information for qualified professionals to consider when conducting seismic designs of high-consequence dikes located in southwestern British Columbia.


This guide discusses the design and construction of protective works to prevent erosion of river banks and dike slopes from stream flow.


These guidelines present minimum standards for managing vegetation on flood control structures in a manner that protects public and environmental safety.

Vegetation management for a set-back dike - Click to zoom

Vegetation management for a set-back dike.

Flood profiles and scenarios

Hydraulic modelling is used to generate flood profiles and flood scenarios. The B.C. Government uses these profiles and scenarios in dike engineering and land use planning.