This research project examined the effect of ultra high-pressure water cutting on chipseal and hot mix asphalt surfacings with polished aggregate. The project monitored sections of the state highway network where polished sections were treated with ultra high-pressure watercutting alongside new surfacing treatments. The microtexture and macrotexture of the watercut and newly constructed sections were compared over a two-year period. Ten sites were identified for this research project from the 2003 SCRIM+ network survey. These were treated with normal resurfacing techniques apart from a 150-200 metre section on each site that was retexturised using the watercutter. The microtexture and macrotexture of the newly constructed and watercut surfacings were measured for each site at six-monthly intervals over a two-year period to quantify the effect of the treatment and duration of the improvement. Data from the annual SCRIM+ survey was also collected and analysed. The research showed that watercutting improved both microtexture and macrotexture for all 10 sites. Duration of the improvements varied depending on aggregate properties, site geometry, traffic stresses, climate effects and loss of texture due to flushing and surface contamination. Similarly the performance of the newly constructed surfacings was variable. Within two years of construction the microtexture of the new surfacings on four of the 10 sites had deteriorated to levels measured prior to treatment. The ultra high-pressure watercutting process has been shown to improve both microtexture and macrotexture. However, where polish-prone aggregates are used the improved microtexture is unlikely to last more than two years. The same short duration improvement occurs when new surfacings are constructed with the same polish-prone aggregates.