Guidance on the inspection of lagoons – QNJAC

In this QNJAC guidance you will find information, images and videos covering all aspects of quarry lagoon inspections, it covers the two types of lagoons commonly found in quarries

Below Ground level lagoons which are excavated into the underlying strata usually represent little hazard in terms of geotechnical failure

Above Ground Level Structures which can be concrete or metal constructions but are most commonly embankment type dams. There are some inherent dangers from a number of geotechnical failure mechanisms so they require careful inspection and monitoring.

Download the guidance