Marine Civil Engineering Project - Cape Clear Harbour Storm Gates & Slip

Cape Clear Harbour Storm Gates & Slip

Cape Clear is Ireland’s most southerly island, 11km from its nearest port, Baltimore and just a few kilometres from Fastnet Rock Lighthouse. This project protects the harbour and boating fleet from Atlantic storm surges and extreme waves.

The project consists of the design and construction of new 12x8m high hydraulic mitre storm surge gates, harbour entrance, slipway and Xbloc concrete fixed breakwater to protect the existing Island harbour from damaging storm waves. The Contractor design included the offsite fabrication of major elements such as Xblocs, steel storm gates and the 1000t reinforced concrete storm gate chamber. The chamber was cast on the mainland, floated and towed over 100km into position on Cape Clear. Onsite Island works included construction of an onsite concrete batching plant, dredging, sheet piling, underwater pier construction, anchoring & control room construction. The M&E element of the project includes a CE marked installation of 2 HMI controlled 140t rams and 20t gate latch cylinder.


design, pier, harbour, Island, slip, concrete, precast, mitre, gate, hydraulic, PLC, electrical, structural, steel, sheet, piling, dredging


Cape Clear Harbour Storm Gates & Slip


Completion Feb 2015


Department of Agriculture, Food and the Marine

Services Provided:

Marine Civil Engineering


ACEI Structure Award 2015