The Mapping Network, LLC is a business organized to perform Hydrographic and Sub-bottom profile surveys on lake and river systems for a wide range of clients throughout the United States. We operate from our office in Omaha, Nebraska along with fifteen highly trained Lake Management companies located around the country. We provide this service for a variety of client needs including generating bathymetry, sediment, and water volume information.

The Mapping Network works directly with government organizations, lake associations, engineers, developers and dredging companies. Our company and personnel have been leaders in the development of tools and technology for hydrographic survey systems for over a decade.

Since 1999, the staff at The Mapping Network began linking hydro-acoustic depth measuring equipment with Differential and RTK GPS receivers to create accurate and up to date bathymetry maps. Over the ensuing years, this technology has improved and our company has remained on the cutting edge of utilizing these systems to produce very accurate and cost effective bathymetry and sediment surveys.

Top Left: Shallow water

manual bathymetry and

sediment measurements

Top Right: Hydrographic

surveying using Hypack

software

Bottom: One of the survey

vessel setups with sub-

bottom profiling equipment

for measuring sediment

Survey

Equipment

Top: Survey vessel

Middle: Sub-Bottom profile

survey at dusk

Bottom Right: Hydrographic

survey using Hypack

Below: 210 KHz and 10 KHz

Transducer Mount

z

Hydrographic

Surveying

Top: Contour map depicting

one-foot elevation changes

Bottom: Three-dimensional

model of lake bottom

Below: Contour map overlaid

on a transparent three-

dimensional model

Sediment

Surveying

Top: Sediment Survey

example - notice area in the

southern portion of the lake

that has been dredged.

Bottom: This example is a

zoomed view of the southern

portion of lake – notice the

sedimentation that occurred

when the house was built.

Below: View of raw sonar data

from 10 KHz transducer sub-

bottom sediment profiling

system.

Bot

Excavation

Analysis

Top: Excavation map example

showing existing contours,

proposed contours and

removal depth and quantity

calculations.

Middle: This example is a

dredge monitoring project. The

color coded area is where

dredging was performed. The

red outlined portions are an

estimate of how much

sediment is yet to be removed.

Bottom Right: The Excavation

map below shows the area to

be excavated that are less than

4 feet and how much sediment

needs to be removed.

Below: Sediment Map

example showing probe

locations and sediment

thickness.

Vegetation

Mapping

Top: Vegetation survey

showing a side profile view,

vegetation height scatter plot,

and transect line overview.

Bottom: Vegetation survey

identifying invasive plants.

Below: Rasterized vegetation

map for percent bio-volume

point data.

Sediment

Profile

Top: A 1983 and 2013

comparison sediment profile.

Below: Sonar display of a soft

sediment layer.

Additional

Services

Top: This image depicts a lake

bottom hardness analysis. The

blue areas are soft sediment

and the yellow displays a hard

bottom.

Middle: After viewing the lake

bottom hardness map further

investigation by side-scanning

sonar revealed a pile of rocks

and tires.

Bottom Right: Capacity curve

example depicting gallons of

water per foot of elevation.

Below: Example of Down-

scan technology using side-

scanning equipment.

Recent :

Kansas River Douglas County, Kansas

Hydrographic survey for engineering water intake and dredging. Client was The Army Corps of Engineers

Lake Wildwood Marshall County, Illinois Hydrographic survey, sediment survey for dredging. Client was Lake Wildwood HOA.

Vaughn Lake Cumberland County, Virginia

Hydrographic survey, sediment survey and incremental volume calculations. Client was an engineering firm.

Dodge Park Marina Douglas County, Nebraska

Hydrographic survey, sediment survey, dredging analysis. Client was local engineering firm and The Army Corps of Engineers.

Lake Calumet Harbor Cook County, Illinois Hydrographic survey and volume analysis for dredging. Client was The Army Corps of Engineers.

Smith Mountain Lake Franklin County, Virginia Hydrographic survey and volume analysis. Client was an engineer and government agency.

Brays Island Lake Beaufort County, South Carolina

Hydrographic survey before and after dredging, sediment survey. Client was a property owners association.

Lake Windsor Bella Vista Village, Arkansas

Hydrographic survey, sediment survey, excavation maps, post-dredging mapping. Client was a property owners association.

Armstrong Pond Spring Brook Country Club, New Jersey

Hydrographic survey before and after dredging, sediment survey, water volume analysis before and after dredging. Client was a private golf club.

Riverbrooke Lake Atlanta, Georgia

Hydrographic survey, sediment survey, excavation maps, post-dredging mapping. Client was a Home Owners Association.

Twin Lakes Cook County, Illinois

Hydrographic survey, sediment survey, excavation maps for engineering firm and dredging company.

Cedar Lake Madison County, Iowa Hydrographic survey, sediment survey, and excavation maps for engineering firm.

Carbon Canyon Orange County, California Hydrographic survey, sediment survey, and excavation maps for the Orange Country Parks

hydrographic and sediment surveying - the mapping network

Documents