Work begun today to re-build the 8th green on Silvetburn. This green was very poorly constructed in the 1970s when the course was extended to 18 holes. The root zone and subsoil will be removed and new drainage will be installed under and round the new green to ensure that the area is kept dry. These pictures show the state of the soil and subsoil below the green. Large stones.clay and silt layers all the way through the profile.