RPC is Australia’s expert in Large Diameter GRP Access/Maintenance Shafts – 22.7.2025

RPC is Australia’s expert in Large Diameter GRP Access/Maintenance Shafts – 22.7.2025

RPC has been a trusted partner to the wastewater industry for the design, manufacture, delivery and installation of GRP Access/Maintenance Shafts for some of the largest and most complex infrastructure projects across Australia, New Zealand and South-East Asia.

Engineered in Australia, our advanced GRP solutions offer a superior, long-lasting alternative to traditional brick and concrete structures. Designed for a 100+ year asset life, they deliver superior durability and corrosion resistance, require less maintenance, and significantly reduce safety risks related to deep excavations, confined spaces, and lengthy installations—making them an innovative and efficient choice for asset managers and infrastructure owners.

Water Authorities including Yarra Valley Water, Melbourne Water, Queensland Urban Utilities, Brisbane Water, Sydney Water along with Watercare in New Zealand have all adopted GRP as a solution for large diameter access/Maintenance Shafts.

Acting as ‘insitu-cast-in place’ we have engineered and manufactured access/Maintenance Shafts up to 7.5m in diameter and over 100m deep.

Celebrating 50-years in business, we’re proud of the role our unrivalled expertise in GRP engineered solutions has played in enhancing project efficiency and safety — and even prouder of the partnerships we’ve built along the way with leading contractors and authorities.

As infrastructure needs continue to evolve, RPC remains committed to innovating and supporting sustainable, high-performance solutions for the next generation of projects.

Epping Manhole made of composite materials