Redcliff's seawall for tide and weather

The new Beachville seawall in Redcliff’s has now been completed after 10 months of work by the Stronger Christchurch Infrastructure Rebuild Team (SCIRT).

The original wall, built in the early 1900’s, was damaged beyond repair in the 2011 earthquakes. The broken seawall left Beachville Road and its residents vulnerable to flooding during bad weather.

Built by SCIRT’s Downer delivery team, the new wall stretches 500 metres along the Heathcote/Avon Estuary.

Beachville Road resident Jan Bargrove said local interest in the progress of the seawall was “huge”.

The new seawall was a “huge improvement” from what was there prior to the earthquakes.

“I think it gives us a great sense of security,” Mrs Bargrove said.

After the earthquakes, the seawall was broken and during Spring tides the water flowed over the old wall but fortunately it did not flow into properties, she said.

Locals are really enjoying the new seawall. “It’s brilliant. A lot of people are walking along the seawall where the paths are sealed.” Mrs Bargrove said.

SCIRT’s Downer team and Connell staff gather as the last reno-mattress for the Beachville seawall is put into place. 

One of the earthquake strengthening additions to the new wall is the one metre thick layer of rock reno-mattresses in the seabed of the wall.

SCIRT Executive General Manager, Ian Campbell says, “Placing the reno-mattresses was challenging and only achieved using divers with GPS to direct the exact placement of the mattresses on to the seabed.

“The new structure is specifically designed to protect from erosion and is strengthened to be less susceptible to any future earthquakes.”

Work on the 1.2 kilometres of Coastal Pathway and roading alongside the seawall continues and is due to finish this September.


Published: 23 June 2016