03 9878 6666 info@wirrawonga.com.au

Remember that if you have accurate detail and full information supplied to us you save money on engineering! Areas you can save money include doing your own Easement information search, you can ring your Water
Authority and request SDO (size, depth, offset). The Water Authority will charge you between $15 and $35 for this. Also, supply of full AutoCAD drawings reduces drafting time and we can pass that saving to you.
Thirdly, know your angle of repose issues before submitting your drawings; this can save late amendments or building surveyor issues on site later on. As a rough guide, 45 degrees for clays and 30 degrees for sand, from the BASE of your excavation.