Berry Rigid Barriers are assumed by BS 6399 to have a zero deflection and deformation of the barrier rail and damage to the vehicle is likely with any significant impact. Because of their solidity, high anchor bolt forces are generated and so they require substantial footings.
The bolt down type of rigid post uses 4 x M20 resin type anchor bolts with 170mm embedment. These have a pull out loading of 100kN and are best used where there is no room for any barrier deflection and minimising damage can not be a priority.