CCA5 Bray Head to Greystones North Beach
CCA5 is the section of coast that stretches from Bray Head at Naylors Cove to Greystones North Beach; north of Greystones Harbour. This frontage is mainly rural, with the train line running along the coastline in and out of tunnels.
The Emerging Preferred Scheme for CCA5 to be taken forward to public consultation is rock revetments (at Bray Head) and rock headlands with managed cliff recession (at Greystones North Beach).
The top advantages identified with the Emerging Preferred Scheme are:
- Low cost and maintenance burden;
- Smaller footprint;
- Maintains access for amenity;
- Low material consumption and waste;
- Preferable option for carbon management; and
- Allows natural processes to continue between the headlands.
Rock Revetments at Bray Head
- The railway line runs along the cliff at CCA5 and is supported from below and protected by various masonry and rock structures. Rock revetments will be placed in front of some of the existing exposed coastal structures. The rock revetments will prevent the loss of the foreshore whilst also dissipating wave energy and reducing wave impact on the existing coastal structures.
- The rock revetments will comprise a minimum of two layers of natural rock boulders. The rock size has been selected to provide stability and allow for climate change. This rock will be of high quality to ensure that it has a long lifespan.
Rock Headlands at Greystones North Beach
- The rock headlands will be constructed on the beach at the toe of the soft cliffs. The northern headland will be approximately 180m long whilst the southern headland will be approximately 300m long with approximately 250m between the two headlands. All dimensions are to be confirmed during design development. The rock headlands will comprise a minimum of two layers of natural rock boulders. The rock size has been selected to provide stability and allow for climate change.
- The rock headlands will protect the toe of the cliff and stabilise the upper cliff system at these locations. Between these rock headlands, there will be further limited recession of the cliff until a stable bay is formed.
Walkways and Access
- The ends of the rock headlands will turn seawards to improve the stability of the bays between the headlands. Access seaward of these structures will be tidally limited, hence additional alongshore beach access is provided landward of these structures at the toe of the existing cliffs. Natural pathways will be provided.
Useful Material and Downloads
- CCA5 Brochure
- Emerging Preferred Scheme CCA5 Plan
- Cross Section Rock Headland at Greystones North Beach
- Emerging Preferred Scheme CCA5 Preliminary Options Selection Report
Appendices
To make a submission please visit the How to Engage section.