As part of the Vegetation Management Framework contract held by Land & Water Services, maintenance work was carried out on specified watercourses in both the Epping and Brent areas. Cut is carried out to a regime which takes into account, habitat, sustainability and flood prevention.
There are several aspects to this contract with Land & Water providing; 24 hour Emergency Standby for flood cover on specified water courses and structures, monthly inspection/observation visits on specified water courses and structures, trash screen clearance, minor tree works, hand dredging, flood bund and bank reinforcing and also silt sampling and testing. The contract also involves the maintenance of a silt trap and flood relief pond which involves the annual clearance of approximately 100 cubic meters of deposited silt from the trap and overspill that has flowed into the lake.
This work is completed using heavy machinery. A 22 ton Long Reach excavator along with a 9 ton dumper and finally several 8 wheeled haulage wagons for removal from site. The lighter vegetation works are carried out by a small works team using hand held equipment and takes approximately 4 weeks per year, the maintenance visits and subsequent work involves approximately 2 days per month over 12 months and the silt trap and pond works approximately 1 week to complete.
Wherever possible cleared material is taken for recycling or composting reducing the need for disposal to landfill.