Retention Pond Management

A hydrographic and sediment study was recently conducted on a retention pond to provide a information to help with proper management. It’s important to know how much sediment and other material accumulates in retention basins to insure that it’s functioning properly. The image below shows the sediment thickness found by the sediment probes and sonar technology. Sediment_InletPoint_001

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Hydrography and UAV/Drone Survey for Water Capacity Analysis

The Mapping Network conducted a hydrographic and topography survey for several trout ponds.   They utilized Odom Sonar,  Trimble RTK GPS, and Hypack to create the bathymetry.  For the topography they used Trimble RTK GPS for control and a UAV / Drone to collect the images that produced the orthographic image and topography contours.  All data was then input into ArcGIS for final processing.

Watershed approach to management

The Mapping Network just completed a lake survey for a property owner association.  The lake has experienced significant sediment in the coves and main river inlet over the years.  The Mapping Network sampled the sediment structure and mapped the sludge thickness to help the client in the dredging bid process.  Part of the report included understanding sources of sediment and how activity within the watershed will ultimately affect the lake.   Below is a map showing the lake map (in blue) and it’s 2,017 acre watershed.

Watershed and lake map

The Mapping Network hydrography/bathymetry dredging project locations – Heat Map

Below is a heat map that show the locations of all our projects over the past few years.  These projects range from bathymetry, sediment studies for dredging projects, pre and post dredge surveys, water capacity studies, uav/drone land mapping and imagery, and 3d modeling.HeatMap

Coal Ash Pond Bathymetry and Dredge Survey

The Mapping Network performed a hydrographic and dredge survey for a power plant’s coal ash ponds. These can be difficult because of the composition of material.  With the combination our sonar, GPS, and years of experience with coal ash, we were able to give them an accurate estimate of ash volume.

Sediment_NearmanPowerPlant - Copy_001