HYDROGRAPHIC SURVEYS QUANTIFY THE DEPTH AND FORM OF THE SEABED, FROM THE INTERTIDAL ZONE TO THE DEEP OCEAN FLOOR, USING A VARIETY OF SONAR SYSTEMS.

Ollerhead & Associates Surveys provide highly accurate hydrographic surveys in Canada. We have proven the ability to carry out, manage and deliver large scale projects over vast geographical areas.

We are able to provide extremely dense bathymetry data, collected with the use of dual frequency single beam and multibeam echo sounders. We operate in all types of water, including rivers and coasts.

All our findings and data are provided as raw and processed data. We allocate a dedicated team to handle the surveys, from data collection to final delivery, which ensures thorough and efficient data management for your projects.

Single Beam Bathymetric Surveys

DUAL FREQUENCY BATHYMETRIC SURVEY DATA IMPROVES ACCURACY AND REDUNDANCY WHEN COLLECTING WATER DEPTH MEASUREMENTS.

Ollerhead & Associates Ltd. uses Knudsen dual frequency echo sounder for accurate data acquisition, along with HYPACK and Civil 3D software to generate comprehensive final products.

Advantages to single beam bathymetric surveys are:

Easy Set-up
Quick product turnarounds
Inexpensive
Dual frequency improves accuracy and redundancy

Ollerhead & Associates Ltd. provides detailed depth measurement surveys, adaptable to multiple applications, such as:

Bathymetric Mapping
Hard and Soft Bottom Detection
Cross-Section Plotting in AutoCAD
Tailing Pond Containment Reports
Navigational Charts

Multibeam Bathymetric Surveys

MULTIBEAM BATHYMETRIC SURVEY DATA PROVIDES RICH INFORMATION OF
THE UNDERWATER TOPOGRAPHY OF THE WORKSITE

Ollerhead & Associates Ltd. uses Multibeam echo sounders for accurate data acquisition, along with HYPACK and Civil 3D software to generate comprehensive final products.

Advantages to multibeam bathymetric surveys are:

100% Bottom Coverage
Able to Survey a Wide Swath with More
Rich Data Acquisition Allows for Accurate Infrastructure Delineation