As part of their vegetation management framework contract, Land & Water Services undertook maintenance works on specified watercourses in Chichester area.
There were two elements to this contract, the light vegetation clearance and the main riffe (man-made water conveyance channel) clearance. The cut regime specified by the contract documents takes into account habitat, sustainability and flood prevention and in this instance all materials were to be left above the high water line to compost. Hand cutting by a three man team completed the light vegetation work over a one month period.
The focus of the riffe clearance was on clearing vegetation material to create a central channel of approximately 4m in width.
Land and Water Services’ amphibious weed cutting boats or Truxors were employed for this aspect of the works. The Truxors are fully road transportable and were delivered by trailer to site where they tracked into the watercourse causing minimal disruption. Two boats operated in partnership, one cutting the vegetation, the other collecting cut material from the watercourse and placing it above the high water level. The Truxor work also took one month to complete.