Tidegates and Self-regulating Tidegates

From Salish Sea Wiki
Jump to navigation Jump to search

Wiki Rules
  • Wiki text does not reflect the policy or opinion of any agency or organization
  • Please adhere to our social contract
  • Complain here, and be nice.
What Links To This Page?

Link to List of Workgroups Link to List of Efforts Link to List of Resources Link to List of Documents Link to List of Topics Link to List of Places

Link to Headwater Sites Link to Lowland Watershed Sites Link to Floodplain Sites Link to Delta Sites Link to Embayment Sites Link to Beach Sites Link to Rocky Headland Sites

Tidegates are typically one-way culvert placed under a levee or dike that separates freshwater and tidally influenced areas. It is designed to open and allow freshwater to drain to the sea during low tide, but to close at high tide.

Self-regulating Tidegates (SRTs) are a kind of tide gate technology that uses a float or another mechanism to detect water level, and delays closing of the tide gate until flood tide reaches a certain level. Compared to a standard tide gate or flood gate, a SRT maintains connectivity between the Salish Sea and tidal channels, purportedly improving water quality and access for estuarine dependent fish.