client was providing a sludge digester solution for the Welsh Water
Alliance, at Afan WwTW near the coast at Port Talbot. Part of their
scheme included two large sludge digester tanks. Our brief was to
provide safe access from ground level to the top of the two 20 metre
high x 18 metre diameter tanks. Steelway designed, manufactured and
installed a set of cantilevered open mesh staircases, handrails and
necessary landings, all to meet the Welsh Water specification.
Near the top of the two tanks, we also provided a
structural platform suitable to support a 9.3 tonne sludge draw off
tank. To the perimeter at the top level of both 18 metre diameter tanks,
we supplied and installed triple line handrails complete with wire mesh
infill panels. To the ground level of both tanks, we manufactured and
installed wire mesh lockable enclosures to deter un-authorised access to
The project required a close working
relationship between ourselves and our customer, the tanks included
numerous tensioning cables within their construction, we needed to
ensure all fixings supporting our stairs etc. did not clash with these.
The scheme was completed on time and to the
satisfaction of our client and the Welsh Water Alliance.