Portagate Barrier - Folding Manhole Barrier - JSP - RedThe JSP Portagate barrier is a durable and diverse folding barrier used by utility companies across the UK and Europe. The barrier is made from blow moulded HDPE (high density polyethelyne) that has been UV stabilised to prevent it from becoming brittle in sunlight. The barrier falls into two categories as it is both a chapter 8 barrier and a manhole barrier. The portagate barrier is often seen being used by telecoms, water and gas utility works