Whiterock Beach to South Killiney
The Whiterock Beach to South Killiney project spans a diverse coastal area that includes natural hard cliffs, engineered embankments, and steep natural cliffs ranging from 6 to 12 meters in height. The area is largely non-urban, with a railway line elevated above the coastline and supported in places by man-made structures. The project is divided into two main sections: Whiterock, which features an existing masonry wall supporting the rail embankment, and Killiney/South Killiney, which extends from Killiney Beach car park to the Seafield Road underpass.
Key hazards in this area include cliff instability, coastal erosion, and shore platform lowering.
Project Objectives
The objectives of the project are:
- To reduce the impacts of wave overtopping leading to erosion of the embankments that support the railway
- To reduce the risk of coastal erosion undermining the embankments that support the railway
Preferred Scheme
The preferred scheme includes rock revetments at Whiterock and a raised footpath with a rear wall and beach access steps along Killiney.
Whiterock
- Rock revetments with 6-10 tonne armour rock to absorb wave energy and protect the existing wall and embankment.
- Design refined to reduce beach impact by steepening slope and lowering crest height compared to the concept stage (Phase 2) design.
Figure 1: Illustrative view of Whiterock
Killiney and South Killiney
- Concrete seawall with a 3.0m wide raised walkway and beach access steps.
- Rock toe protection in South Killiney to account for future beach drawdown.
- Access steps and ramps designed for future beach level changes (to 2075 predictions).
- Amenity steps and pedestrian ramps improve access and reduce wave reflection.
Figure 2: Illustrative view of Killiney Beach
Useful Material and Downloads
- Preferred Scheme for Whiterock Beach to South Killiney Brochure
- Illustrative view of the proposed revetment at Whiterock
- Illustrative view of the raised walkway and seawall at Killiney Beach
- Illustrative view of Whiterock (North of the Bluff)
- Illustrative view of Whiterock (South of the Bluff)
- Illustrative view of Killiney Beach South
- Illustrative view of Killiney Beach North
- Whiterock Beach to South Killiney Location Plan
- Whiterock Beach to South Killiney (Coastal Cell Area 2/3) Phase 3 Design Report
