Excavation

Excavation refers to activities that remove soil and/or rock often increasing wetland extent and/or depth and water persistence.

Quick links

• Wetland classification scheme
• Wetlands mapping data fields - Hydrological modifications (habitat scale)
• Wetlands mapping data fields - Hydrological modifications (landscape scale)
• Wetlands mapping attributes - Hydrological modifications (habitat scale)
• Wetlands mapping attributes - Hydrological modifications (landscape scale)
• Wetlands mapping classification table - Hydrological modifications

Excavation – Excavation in a channel

Select from the tabs below

• Excavation creating an artificial wetland
• Excavation in a channel
• Excavation outside a channel

Excavation in a riverine channel

Excavation within a riverine channel increases the extent and/or depth and may increase the persistence of water in the wetland. The wetland remains a riverine wetland system as changes in water level and extent are contained within the channel boundaries.

Applicable Wetland Habitat Hydrological Modification:

• 'Modified – excavation in a channel – freshwater wetland with no system change' (H2-M10-a)

Excavation in a riverine channel causing wetland system conversion

Excavation within a riverine channel removes natural tidal barriers enabling tidal inundation. The wetland is converted to an intertidal wetland.

Applicable Wetland Habitat Hydrological Modification:

• 'Modified – excavation in a channel – freshwater wetland with system change to intertidal' (H2-M10-c)

Last updated: 7 June 2023