William Hughes Peirianneg Sifil Cyf - Civil Engineering Ltd William Hughes, Peirianneg Sifil Cyf, Civil Engineering Ltd, civil engineering and construction, anglesey, north wales, wales, uk, water networks, land drainage, pipelines and pump stations, sewers, road networks, bridge, renovation, structural work, in-situ concreting structures, retaining walls, coastal protection works, rural pathways, cyclesways, rhwydwaith dwr, cymru, draenio tir, pibelli a gorsafoedd pwmpio, carffosydd, rhwydwaith lonydd, pontydd, adnewyddu, atgyweirio, gwaith strwythurol, strwythurau concrid in-situ, waliau argadw, gwaith gwarchod arfordir, llwybrau gwledig, llwybrau beicio, welsh water alliance, dwrcymru, united utilities, gwynedd, environment agency, first hydro, edison, gallifordtry, alstom, ec harris, cynghrair dwr cymru, dwr cymru, united utilities, gwynedd, asiantaeth yr amgylchedd, Bodffordd, Llangefni, Ynys Môn, Anglesey, North Wales, UK, Gogledd Cymru, Prydain fawrLL77 7DZ William Hughes, Peirianneg Sifil Cyf., Civil Engineering Ltd. , Bodffordd, Llangefni, Ynys Môn, Anglesey, North Wales LL77 7DZ