Once it is backfilled,
nobody can check it.
Fibre trenches are paid by the kilometre and specified by depth. We measure the depth every metre before the soil goes back, and leave the photograph and the point cloud that prove it.
- Checked every
- 1 mnot a spot check
- Covered per day
- up to 50 kmof route
- Each section
- Pass / failagainst your specified depth
- Evidence
- Photo + cloudat any chainage, afterwards
A depth nobody measures is a depth nobody owes.
The contract states a minimum depth. The trench is open for a day. Somebody drops a tape in at a few places, the soil goes back, and from that moment the only record of how deep it was is a memory.
When a cable is cut by a road widening two years later, that memory is what the dispute turns on.
Shallow sections are not usually dishonest. They are where the rock was, where the water was, where the machine could not reach. They just need to be known.
Walk the open trench. Section it every metre.
One pass while the trench is still open, then the span is cut into sections and each one is measured.
Capture before backfill
The open trench is recorded as a point cloud with a 360° camera running alongside and GPS logging a position every second. One operator, walking.
Section every metre
The span is cut into sections at one metre spacing — close enough that a shallow stretch cannot hide between two samples.
Pass or fail, by section
Each section's depth is compared with the specified minimum and marked. Failures are located by chainage, not reported as a percentage.
A row per section, and a verdict.
Not a certificate saying the trench was dug to depth. A table saying where it was and where it was not, with the evidence attached to each row.
- Depth at every section along the span
- Pass or fail against your specified minimum
- Failures located by chainage, so they can be put right
- The photograph and the point cloud at any section, afterwards
A number anybody can check.
Staffs are placed the whole length of the span, not at one spot. Open the cloud and read the depth off a scale; open the photograph and see the trench it came from.
And the picture that goes with it.
Click a section on the map and the 360° photograph from that chainage opens beside the reading. The number, the picture and the position are one record — so a disputed section can be looked at rather than argued about.
Processed in Metron Conduit, our own software — so when a contract specifies a different depth, a different spacing or a different report, we change the software rather than explain why we cannot.
Anyone on either side of the payment.
The contractor
Evidence that the work was done to depth, recorded as it was dug rather than argued for afterwards.
The client
A check on the whole length rather than the few places somebody chose to measure, before the money is released.
The owner, later
A dated record of where the cable actually lies and how deep — the thing nobody has when a road is widened.
Before you ask
What depth do you check against?
Whatever your contract specifies. The threshold is a setting, not a fixed number, and the report states which one was applied.
How close together are the sections?
One metre as standard. Close enough that a shallow stretch cannot sit unnoticed between two readings.
Does the trench have to be open?
Yes. The measurement is of the excavation, so it is taken before backfill — which means the capture has to be scheduled with the digging, not after it.
How much can you cover in a day?
Up to 50 km of route in a day. The limit is how much open trench there is to walk, not the capture.
Where do you work?
All India.
Tell us about the route
Length, the specified depth and when the trench will be open. We will come back with scope and cost.