High Island Reservoir - Dolosse — Attraction in Hong Kong

The breakwater in High Island Reservoir East Dam (萬宜水庫東壩）is composed of about 7000 double T-shaped concrete prefabricated components (wave breakers) called dolosse. Each dolos block can weight up to 20 tons. The main design is to stabilize the foundation of the coast in the form of dam construction to prevent the erosion of the tides. The tetrapod or wave breakers of the breakwater are anchor-shaped and they also look like 1-shape piers as well as giant toy building blocks when put together. Anchor-shaped tetrapods are more stable than ordinary twisted shape tetrapods. They have been exposed to sea waves for more than 40 years but they are still indestructible. In addition, the embankment is covered with numerous small holes to slow down the speed of water flow and reduce the damage caused to the dam by waves. There is a pathway the length of the Cofferdam (防波堤）just next to the top tiers of the dolos blocks. There are numerous signs warning people not to climb onto the...

This is the smaller outer dam structure between the buffer lake and main East Dam of the High Island Reservoir. These dolosse are huge t-shaped concrete structures that are stacked up to form this lower dam structure.

This is one of the cluster of interesting things to see at the East Dam and High Island Reservoir before starting the popular MacLehose Trail...

A very nice place to visit solo, with friends, or with family. The place was easily accessible via public transport, and taxis and Ubers were frequently visiting as well. There was a public toilet and a number of water taps were located just outside it. One could walk on the road above the reservoir, or on another one right...