hydrographic and sediment surveying - the mapping network
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Hydrographic and Sediment Surveying
Hydrographic Surveying is what we do…
every day
A nationwide network of Lake Professionals
Over 20 years of experience
State of the art equipment to get the job done right
USACOE and IHO compliant
Hydrographic Surveying
Sediment Surveying
Sub-Bottom Profiling
Side Scanning Sonar Data Collection
Lake Bottom Hardness Analysis
Capacity Curve Analysis
Sediment Quantity Analysis
Invasive Vegetation Mapping
Land Mapping
Bio-Volume Vegetation Mapping
SonarWiz, Hypack and Dredgepack Data
Profile (Thalweg) Survey
GIS Processing and Analysis
USACOE and IHO Compliant
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