Staking points from coordinates

Staking points from coordinates means locating individual points on the ground that are not tied to a building, boundary or route, but simply given as a list of coordinates. The client has an Excel sheet, a GPS file or a catalogue taken from a design, and needs those points shown accurately on site.

Typical examples include borehole locations for geotechnical investigation, positions of lighting and telecom poles, billboards or solar panel supports, irrigation equipment on farmland, observation points for research, or features taken from an old map. Sometimes the client simply wants to know where a set of coordinates actually lies on the ground.

The most common difficulty is the coordinate system: the same point has completely different numbers in the national system, WGS-84 geographic coordinates and UTM zone 39N. We first verify the system, convert where required, and then stake the points with SOUTH GNSS RTK (±1–2 cm in plan). In open terrain a large number of points can be staked in one day.

Each point is marked with a numbered peg, pin or paint, and the actual coordinates are listed in the report.

When you need it

• Marking geotechnical borehole locations
• Installing poles, signs and solar panel supports
• Agricultural and irrigation projects
• Scientific and environmental observation points
• Checking where a set of coordinates really lies

What's included

• Checking the coordinate list and system
• Coordinate conversion where needed (national, WGS-84, UTM 39N)
• Staking by GNSS RTK or total station
• Marking points with numbered markers
• Offset marks for inaccessible points
• Recording actual staked coordinates

How we work

1. Receiving the coordinate file and confirming the system
2. Conversion and route planning
3. Staking points on site
4. Installing marks and photo record
5. Report delivery

Deliverables

• Points marked on site
• Table of design and staked coordinates
• Point location diagram
• Setting-out certificate