ABOUT US
CONTACT US
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+64 (09) 299 9767

info@heronconstruction.co.nz

Hydrographic Surveying

To complement our dredging operations Heron Construction can provide a complete hydrographic survey service. This includes pre and post dredge surveys, interim progress surveys, LINZ clearance survey, volume calculations and supplying reports and plans in either paper or digital format.

Heron Construction has two dedicated survey vessels, White Pointer and Kaiwea both these vessels were purpose built by White Pointer Boats in Gisborne.  White Pointer is equipped with the latest Reson 7125 SV Multibeam Echosounder & Applanix Pos MV inertial motion sensor while Kaiwea is fitted with a Reson 215 single beam echo sounder. We also have available portable survey equipment that allows us to convert almost any craft in a survey vessel.

As well as having our own in-house survey team, Heron can and has worked in conjunction with independent registered hydrographic surveyors in both New Zealand and Australia for auditing and QC purposes and to provide navigational channel clearance surveys when required.

Heron's range of survey equipment includes:
Vessels
White Pointer
  • Simrad 200-7F 200 kHz 7 degree Transducer
  • Trimble 5700 RTK GPS
  • Navisound 210 single beam echosounder
Kaiwea
  • Reson TC2024 200 kHz 9.5 degree Transducer
  • Trimble 5700 RTK GPS
  • Navisound 215 dual frequency (200 & 33 kHz) single beam echosounder
Multibeam
  • Reson Seabat 7125 SV Multibeam Echosounder & Transducer
  • Applanix Pos MV inertial motion and position unit
  • Trimble SNM940 modem
Portable Kit
  • Airmar NS_M163 Dual frequency transducer (33khz 19 degrees, 200 kHz 9 degrees)
  • Airmar NS_SS510 transducer 200kHz 8 degree
GPS Equipment
  • Trimble R8 RTK GNSS Rover & Trimble 5800 RTK Rover
  • Trimble SPS855 RTK GNSS, 2 x Trimble 5700 RTK & Trimble 4700 RTK Base Stations
  • 7 x Trimble 5700 RTK Rovers
  • Pacific Crest Radios
  • Trimble Radios
Electronic Tide Gauge Transmitter & Receiver
  • Herrin HD3011 
Software
  • Timble HydroPro and Terramodel, Reson PDS2000 and AutoCAD 2014
ABOUT US

Heron Construction is a family owned and operated marine construction company that specialises in using backhoe dredgers for marine dredging. Established in 1964, our team has been providing construction companies with a quality dredging service for over 45 years.

FIND OUT MORE ABOUT OUR TEAM   arrow link
 
PROJECTS
As Heron celebrates 50 years of operation, it can look back on a wide range of successful projects.
 
CONTACT US
 
icon phone +64 (09) 299 9767
icon mail info@heronconstruction.co.nz

icon location
 
Heron Construction Co Ltd.
PO Box 72561
Papakura 2244
New Zealand