Following a tidal surge in early December 2013 widespread disruption was created along the east coast, with many properties flooded and extensive coastal erosion. The surge entered the Humber and associated rivers including the Ouse and then entering the Dutch River. The Dutch River is narrow constraining flow resulting in a large tidal range with high velocities. Concerns were raised regarding the stability of the channel bank and foreshore of the Dutch River which lead to investment in a 3-phase scheme to reduce risk of flooding at high tide. JN Bentley were employed to construct a permanent flood defence using a combination of sheet and CFN piling, steel tendons and rock armour to reinforce the embankment.
Initially long reach machines were required for clearance and reprofiling works in advance of piling but primarily the excavators were required for the placement of the 16,000 tonnes of rock armour along a 1km stretch of the Dutch River.
WM Plant Hire supplied long reach excavators in both 20 and 60 tonne configurations to help meet JN Bentley’s needs including “competent and experienced operators” (R. Tennent, JN Bentley Site Manager) which facilitated the delivery of this difficult tidal project.