The appointed contractor will arrive on site on Monday 6 September.
Access to the park will be via the North Parade car park.
To protect the grass and tree roots, track matting will be laid from the car park to the works compound area and deposition site (shown in the plan below).
The compound location has been chosen as the closest to the site that will least affect the tree canopy. Access to the football pitches should not be affected.
Temporary heras fencing will be erected around part of the perimeter of the pond and the haul route from the pond to the deposition site. The existing infrastructure (benches and bins) will be temporarily removed to facilitate access for the works.
The Contractor’s specialist aquatic consultancy will arrange for and supervise the fish removal and their transport before the water is drained from the pond. Healthy native fish will be re-located to a site agreed with the Environment Agency. Healthy native fish that is not re-located will be returned to the pond at the end of the works when the pond has refilled with water.
Draining the pond and tree removal
The water from the pond will be slowly drained over three days. This will be continuously monitored and presents no flood risk to the park or property.
Removal of a silver birch (to facilitate access) and the fallen large White Willow in the centre of the pond will then take place. The contractor may need to trim back the branches of some of the trees for access.
When the pond is drained down, a check will be made for any remaining amphibians which will be rescued and placed in a suitable nearby location such as dense scrub.
Once the water has been drained down, the Contractor will be able to carry out a condition survey of the existing outfall sluice at the western end of the pond. Some vegetation clearance will be carried out to facilitate this. It is expected that the required repairs will be carried out at the same time as the de-silting works but the extent of the repair work will not be known until the condition survey has been carried out.
Machinery, equipment and safety measures
Throughout the project there will be heavy machinery on-site. This will include two long reach excavators and dumper trucks. In addition, there will be lorry movements in the park whilst this machinery is delivered.
Throughout the project, work areas will be signed and fenced and all staff will be in appropriate PPE. Vehicles will be restricted to 10mph in the park.
The desilting and dredging is expected to take nine days and has been scheduled to take place when the schools have returned and the park will be quieter.
The silt material removed will remain in the deposition area, contained within appropriate fencing which will allow the water to drain but minimise the risk of leachates and mess.
During this time there may be issues with odour, but it is expected these will quickly dissipate.
The drying period is expected to take a minimum of nine months.
The dried out material will be shaped and blended into its surrounding levels and then grass or wildflower seeded. Litter picking will be carried out if required.
Refilling and re-instating the benches and fence
It is estimated the pond will take 10 days to refill, depending on the weather conditions.
The final stage of the project will be to re-instate the existing three rail fence and benches.
The pond is due to re-open to the public by mid-October 2021.