Can I use a hired excavator to build a dam in NSW?

## Excavator Hire for Dam Construction in NSW Small farm dams are common on rural properties across NSW — used for stock water, irrigation, fire fighting, and wildlife habitat. A mini excavator is the standard tool for constructing small farm dams, and BuildHire delivers to rural NSW locations outside Greater Sydney. ### Dam Size and Machine Selection **Small farm dams (under 1,000m³ capacity):** - Recommended machine: 3.5T excavator - The 3.5T has sufficient bucket capacity and digging force for small dam construction - Typical hire duration: 3–5 days depending on soil conditions **Medium farm dams (1,000–5,000m³ capacity):** - Recommended machine: 5.5T excavator - The 5.5T is more productive for larger volumes - Typical hire duration: 5–10 days **Large dams (over 5,000m³ capacity):** - Larger equipment (10T+ excavator, scrapers, compactors) is typically required - Contact BuildHire for advice and referrals to larger equipment suppliers ### NSW Regulations for Farm Dams Farm dam construction in NSW is regulated under the Water Management Act 2000. Key requirements: **Harvestable rights:** Most rural landholders have a harvestable right to capture a limited volume of runoff from their property without a water access licence. The harvestable right volume depends on property size and location. **Water access licence:** Dams exceeding the harvestable right volume require a water access licence from the NSW Department of Planning and Environment (Water). **Controlled activity approval:** Dam construction in or near a waterway may require a controlled activity approval from the NSW Department of Planning and Environment. **Dams Safety Act 2015:** Large dams (over 2 metres high or 250,000 litres capacity) may be regulated under the Dams Safety Act 2015 and require engineering design and certification. ### Dam Construction Process 1. **Site selection:** Choose a location with good catchment area, suitable soil (clay-rich soils hold water better), and minimal tree root intrusion. 2. **Clearing:** Remove vegetation from the dam footprint and embankment area. 3. **Excavation:** Excavate the dam basin to the design depth. Stockpile excavated material for embankment construction. 4. **Embankment construction:** Compact the embankment in 300mm layers using the excavator bucket and a compactor. 5. **Spillway:** Construct a spillway to safely discharge overflow. 6. **Revegetation:** Revegetate the embankment to prevent erosion. BuildHire delivers to rural NSW locations. Call 1300 157 882 for a regional delivery quote.