Water reservoir survey

Client: Utilities

Mapping and 3D modelling water reservoir

The Northern Territory Dam is an embankment type dam estimated to hold up to 259,000 megalitres of water - half the volume of Sydney Harbour.

Rise undertook a bathymetric survey of the entire reservoir to model the reservoir bed to give the client accurate reservoir volumetrics to model the impact of changing water levels.

Rise also created digital twins of the Inlet Tower; undertook an underwater infrastructure inspection and orthomosaic mapped the Dam embankment (orthomosaic mapping). The digital twins and mapping were used for inspection and modelling by the client.

During the survey works Rise was also able to identify and map various submerged hazards within the reservoir (telegraph poles, old railway tracks).

The survey works were carried out during the tropical wet season over 5 stages with no delays or equipment failure.

Darwin River Dam was opened in 1972 and is the major water source for the city of Darwin.

The Dam is an embankment type dam estimated to hold up to 259,000 megalitres of water - half the volume of Sydney Harbour, and 11 times bigger than Manton Dam.

Rise undertook a bathymetric survey of the entire reservoir to model the reservoir bed providing PWC with accurate reservoir volumetrics to model the impact of changing water levels.

Rise also provided industry leading visualisation of the Inlet Tower (digital twin and underwater ROV inspection); Dam embankment (orthomosaic mapping) to allow PWC to undertake comprehensive inspections.

During the survey works Rise was also able to identify and map various submerged hazards within the reservoir (telegraph poles, old railway tracks).

The survey works were carried out during the tropical wet season over 5 stages using Rise’s 5.6m rib.

Darwin River Dam was opened in 1972 and is the major water source for the city of Darwin.

The Dam is an embankment type dam estimated to hold up to 259,000 megalitres of water - half the volume of Sydney Harbour, and 11 times bigger than Manton Dam.

Rise undertook a bathymetric survey of the entire reservoir to model the reservoir bed providing PWC with accurate reservoir volumetrics to model the impact of changing water levels.

Rise also provided industry leading visualisation of the Inlet Tower (digital twin and underwater ROV inspection); Dam embankment (orthomosaic mapping) to allow PWC to undertake comprehensive inspections.

During the survey works Rise was also able to identify and map various submerged hazards within the reservoir (telegraph poles, old railway tracks).

The survey works were carried out during the tropical wet season over 5 stages using Rise’s 5.6m rib.