ABSTRACT
This paper presents the experience and some lessons learned from the design and construction of Portugal’s first High Voltage Alternating Current (HVAC) submarine power transmission cable, offshore Viana do Castelo. The paper focuses on the ground conditions and the engineering solutions along the marine section of the submarine power cable, namely: 1) trenchless cable landing in hard rock, 2) the cable installation and protection requirements along a rocky seabed and 3) trenching in soil.
