Description:
The Rossall coast protection scheme replaced two kilometres of sea defences from Rossall hospital to Rossall Point, in a £63m coastal defence scheme that protects 7,500 properties from the risk of flooding. The scheme was completed in 2018, £6 million under budget.
327,000 tonnes of rock armour was used to create the base of the defences, to weather the harsh conditions on this exposed part of the coastline and allow the beach to build up in the area. Between the rock revetment and the promenade, specially manufactured precast concrete was used to form a stepped revetment to break the waves. The promenade has also been significantly widened.
An ecology park on the landward side of the defences was created and is known as Larkholme Grasslands. This strip of grassland, from West Way to Fleetwood Golf Club, is already classed as a biological heritage site because of the rarer species of flora and fauna that grow there. The area was enhanced to allow residents to enjoy the rich and diverse wildlife.
Subcontract works:
TPS were initially approached to tender for the construction of the new groynes and crossover ramps, which was awarded following competitive tender. Whilst the works were underway on the beach, TPS were awarded a second Subcontract with Balfour Beatty to complete an Ecology Park running parallel to the new sea defense.
TPS scope of works included the following:
Coastal Protection
- Earthworks
- Placement of bedding rock 300 – 1000kg
- Blinding concrete
- Mass concrete foundations for groynes and access ramps (Mix 2 / Mix 4 pours)
- Installation of precast wing wall units
- Concrete works for North and South tie-ins
- Working under tidal conditions (restricted shifts)
Ecology Park
- Site clearance
- Earthworks
- Supply of circa 40,000m3 Class 1A material
- Ducting
- Footways
- Edgings
Employer: Wyre Borough Council
Main Contractor: Balfour Beatty
Form of Subcontract: NEC3 Option B
Value: £2.5M