Bathymetric & Sediment Mapping
Depth, volume, and muck — quantified.
Dual-frequency sonar plus RTK GPS to measure water depth and the soft sediment above hard bottom. Know how much to dredge — to the cubic yard.
Overview
What you get when you book.
We survey ponds, lakes, irrigation reservoirs, and stormwater detention basins to produce bottom contours, water-volume calculations, and sediment-thickness maps. Our dual-frequency transducer separates loose silt from compacted hardpan, giving you a defensible cubic-yard estimate before dredging contractors set a price.
Capabilities
Equipment & methods
- 01Dual-frequency sonar (200 / 50 kHz typical)
- 02RTK GPS positioning, sub-decimeter horizontal
- 03Bottom contour and water-volume modeling
- 04Sediment thickness and hardness mapping
- 05Vegetation biomass mapping (Navico / BioBase)
- 06Pre- and post-dredge verification surveys
Applications
When this service fits
- 01Dredging scope and cost estimation
- 02HOA and golf course pond management
- 03Agricultural and livestock reservoir planning
- 04Stormwater detention compliance reporting
- 05Fishery habitat improvement
- 06Erosion and sedimentation rate tracking
Deliverables
What leaves with you when we leave.
Bottom contour map (PDF and GeoTIFF)
Water volume report at multiple stage levels
Sediment thickness heat map
Cubic-yard dredge estimate by zone
Optional laminated wall map for the owner
Pricing
Plain-talk rate sheet.
Pricing scales with surface area and access. We launch from public ramps or your dock — boat trailer, kayak, and remote-controlled survey vessel available.
Pair with
Other services we run
Get a quote
Tell us where you're digging.
Email a job address, scope, and any drawings or aerials you have. Most quotes go out the same business day.