ArcGIS Pro Expert for Hydrology & Contour Mapping

I need two complementary datasets built from the same elevation source:

1) precise hydroplane tracing that captures natural drainage lines, gullies and flow paths;
2) a full set of elevation contours.

Both outputs will feed into agriculture planning, flood-risk checks and some small-scale construction decisions, so accuracy is critical, especially around low-lying paddocks and potential building pads.

I will supply current property boundaries and any existing DEM tiles I hold; if higher-resolution data or LiDAR is available in public repositories, please factor that in. The work can be completed in ArcGIS Pro (preferred) or an equivalent GIS that produces identical results.

Acceptance criteria
• Hydroplanes snap cleanly to the underlying DEM and respect watershed breaks.
• Contours are smooth, logically nested and free of spikes or dangles.
• All layers align perfectly with GDA2020 / MGA Zone 55.
• Metadata records processing steps and source datasets.

Deliverables
• Layer files (shapefile or GeoPackage) for hydrolines and contours.
• A ready-to-print PDF map for each property at 1:5 000 showing both layers, legend and scale bar.
• Brief method note (PDF or DOCX) summarising tools, settings and any interpolation used.

If something here is unclear, let me know so we can pin down exact contour intervals and file naming before you begin.