Tag Archives: Dredge

Hydrographic Survey and Sub-Bottom Sediment Mapping as Part of Water Management Plan

Widespread Drought Highlights Several Needs for Accurate Lake Maps

As a widespread drought continues on throughout much of the country we are receiving calls from homeowners, engineers and government agencies concerned about water levels in their lakes.  Whether it be for recreation, sediment build-up or monitoring sources of drinking water, the importance of having and accurate lake map has never been higher.  One agency told us they needed to have an idea as to what the lake surface area is and how the lakes elevation compares to lake volume.   They needed to complete a lake survey to make sure adequate water was available, so the pumps don’t run dry.  Another common challenge deals with the impacts of sedimentation in lakes.  A sediment survey can point out patterns and masses of build-up that can allow for a more focused dredge rather than a full-scale project.

Dredging is one of the most costly projects that a community or pond owner will incur during the life of a pond. Proper planning for a dredging project could mean cost savings. The Mapping Network understands the challenges and costs associated with locating and removing sediment. We specialize in accurately mapping bodies of water, calculating the water volume, collecting sediment depth samples at critical areas and monitoring the distribution of sediment over time.

Common questions from our clients:

  • Where is the highest sedimentation occurring?
  • How much sediment (in cubic yards) is in each cove?
  • If the lake is drawn down 5 ft, what would the shoreline look like?
  • How much water (gallons and acre-ft) is in the lake?
  • If we make each cove a minimum of 4 feet deep for boat access how much material do we need to remove?
  • By undertaking this mapping process will it save us money in the end?

Each of these questions can be answered by mapping the lake using The Mapping Network’s system. We are able to locate the problems areas and calculate the volume (in cubic yards) of material to be removed. The lake mapping data allows us to show the new shoreline if a lake is drawn down 1 ft, 5 ft, 10 ft, etc. Also, calculating water volume at various lake levels can be done.  One of the best aspects of the mapping process is it allows the owner and contractor to be on the same page. Successful planning and execution of the dredging project can ensue. We have seen clients save tremendous amounts of money by using The Mapping Network to survey their lake before undertaking the dredging process.

Below are a set of maps for a drinking water reservoir.  Originally built in the 1930’s, this lake has filled in substantially over time.  Now less than half the original lake capacity remains.  With a sustained drought there is a fear the lake will not be able to produce enough water for the city.  Engineers and the local government used The Mapping Network to survey the current lake depths along with charting the original lake bottom.  The final maps revealed a substantial sediment problem throughout the entire lake.  Plans are underway to remove sediment and regain much of the carrying capacity of the lake.

Current and Original Lake Depth

The top map shows the current lake depths. The bottom map was produced using a hydroacoustic sub-bottom profiling system along with manual sediment probes. Engineers and lake management professional around the country have benefited from this specialized technology offered by The Mapping Network.

Sediment Survey for Dredging

Map showing the amount of sediment throughout the lake (top image). The capacity of this lake has been greatly reduced due to over 70 years of sedimentation. The bottom image shows a grid pattern with the amount of sediment measured in feet. Engineers will use this data to create a dredging plan.

The Mapping Network is an industry leader in Hydrographic Surveys, Bathymetry, Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail: info@themappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

The Mapping Network is proud to announce their firm has been chosen by Cabela’s, the World’s Foremost Outfitter, as a Landowner Services provider for Cabela’s Trophy Properties throughout the United States.  Visit us on the Cabela’s Trophy Properties website >> click here

The Mapping Network:  www.TheMappingNetwork.com

A Nationwide Network of GPS Mapping Professionals

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Hydrographic Survey and Sub-Bottom Sediment Mapping as Part of Water Management Plan

Drought of 2012 Highlights Several Needs for Accurate Lake Maps

As the drought of 2012 continues on throughout much of the country we are receiving calls from homeowners, engineers and government agencies concerned about water levels in their lakes.  Whether it be for recreation, sediment build-up or monitoring sources of drinking water, the importance of having and accurate lake map has never been higher.  One agency told us they needed to have an idea as to what the lake surface area is and how the lakes elevation compares to lake volume.   They needed to complete a lake survey to make sure adequate water was available, so the pumps don’t run dry.  Another common challenge deals with the impacts of sedimentation in lakes.  A sediment survey can point out patterns and masses of build-up that can allow for a more focused dredge rather than a full-scale project.

Dredging is one of the most costly projects that a community or pond owner will incur during the life of a pond. Proper planning for a dredging project could mean cost savings. The Mapping Network understands the challenges and costs associated with locating and removing sediment. We specialize in accurately mapping bodies of water, calculating the water volume, collecting sediment depth samples at critical areas and monitoring the distribution of sediment over time.

Common questions from our clients:

  • Where is the highest sedimentation occurring?
  • How much sediment (in cubic yards) is in each cove?
  • If the lake is drawn down 5 ft, what would the shoreline look like?
  • How much water (gallons and acre-ft) is in the lake?
  • If we make each cove a minimum of 4 feet deep for boat access how much material do we need to remove?
  • By undertaking this mapping process will it save us money in the end?

Each of these questions can be answered by mapping the lake using The Mapping Network’s system. We are able to locate the problems areas and calculate the volume (in cubic yards) of material to be removed. The lake mapping data allows us to show the new shoreline if a lake is drawn down 1 ft, 5 ft, 10 ft, etc. Also, calculating water volume at various lake levels can be done.  One of the best aspects of the mapping process is it allows the owner and contractor to be on the same page. Successful planning and execution of the dredging project can ensue. We have seen clients save tremendous amounts of money by using The Mapping Network to survey their lake before undertaking the dredging process.

Below are a set of maps for a drinking water reservoir.  Originally built in the 1930’s, this lake has filled in substantially over time.  Now less than half the original lake capacity remains.  With a sustained drought there is a fear the lake will not be able to produce enough water for the city.  Engineers and the local government used The Mapping Network to survey the current lake depths along with charting the original lake bottom.  The final maps revealed a substantial sediment problem throughout the entire lake.  Plans are underway to remove sediment and regain much of the carrying capacity of the lake.

Current and Original Lake Depth

The top map shows the current lake depths. The bottom map was produced using a hydroacoustic sub-bottom profiling system along with manual sediment probes. Engineers and lake management professional around the country have benefited from this specialized technology offered by The Mapping Network.

Sediment Survey for Dredging

Map showing the amount of sediment throughout the lake (top image). The capacity of this lake has been greatly reduced due to over 70 years of sedimentation. The bottom image shows a grid pattern with the amount of sediment measured in feet. Engineers will use this data to create a dredging plan.

The Mapping Network is an industry leader in Hydrographic Surveys, Bathymetry, Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail: info@themappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

The Mapping Network is proud to announce their firm has been chosen by Cabela’s, the World’s Foremost Outfitter, as a Landowner Services provider for Cabela’s Trophy Properties throughout the United States.  Visit us on the Cabela’s Trophy Properties website >> click here

The Mapping Network:  www.TheMappingNetwork.com

A Nationwide Network of GPS Mapping Professionals

Hydrographic Survey and Sub-Bottom Sediment Mapping as Part of Water Management Plan

Drought of 2012 Highlights Several Needs for Accurate Lake Maps

As the drought of 2012 continues on throughout much of the country we are receiving calls from homeowners, engineers and government agencies concerned about water levels in their lakes.  Whether it be for recreation, sediment build-up or monitoring sources of drinking water, the importance of having and accurate lake map has never been higher.  One agency told us they needed to have an idea as to what the lake surface area is and how the lakes elevation compares to lake volume.   They needed to complete a lake survey to make sure adequate water was available, so the pumps don’t run dry.  Another common challenge deals with the impacts of sedimentation in lakes.  A sediment survey can point out patterns and masses of build-up that can allow for a more focused dredge rather than a full-scale project.

Dredging is one of the most costly projects that a community or pond owner will incur during the life of a pond. Proper planning for a dredging project could mean cost savings. The Mapping Network understands the challenges and costs associated with locating and removing sediment. We specialize in accurately mapping bodies of water, calculating the water volume, collecting sediment depth samples at critical areas and monitoring the distribution of sediment over time.

Common questions from our clients:

  • Where is the highest sedimentation occurring?
  • How much sediment (in cubic yards) is in each cove?
  • If the lake is drawn down 5 ft, what would the shoreline look like?
  • How much water (gallons and acre-ft) is in the lake?
  • If we make each cove a minimum of 4 feet deep for boat access how much material do we need to remove?
  • By undertaking this mapping process will it save us money in the end?

Each of these questions can be answered by mapping the lake using The Mapping Network’s system. We are able to locate the problems areas and calculate the volume (in cubic yards) of material to be removed. The lake mapping data allows us to show the new shoreline if a lake is drawn down 1 ft, 5 ft, 10 ft, etc. Also, calculating water volume at various lake levels can be done.  One of the best aspects of the mapping process is it allows the owner and contractor to be on the same page. Successful planning and execution of the dredging project can ensue. We have seen clients save tremendous amounts of money by using The Mapping Network to survey their lake before undertaking the dredging process.

Below are a set of maps for a drinking water reservoir.  Originally built in the 1930’s, this lake has filled in substantially over time.  Now less than half the original lake capacity remains.  With a sustained drought there is a fear the lake will not be able to produce enough water for the city.  Engineers and the local government used The Mapping Network to survey the current lake depths along with charting the original lake bottom.  The final maps revealed a substantial sediment problem throughout the entire lake.  Plans are underway to remove sediment and regain much of the carrying capacity of the lake.

Current and Original Lake Depth

The top map shows the current lake depths. The bottom map was produced using a hydroacoustic sub-bottom profiling system along with manual sediment probes. Engineers and lake management professional around the country have benefited from this specialized technology offered by The Mapping Network.

Sediment Survey for Dredging

Map showing the amount of sediment throughout the lake (top image). The capacity of this lake has been greatly reduced due to over 70 years of sedimentation. The bottom image shows a grid pattern with the amount of sediment measured in feet. Engineers will use this data to create a dredging plan.

The Mapping Network is an industry leader in Hydrographic Surveys, Bathymetry, Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail: info@themappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

The Mapping Network is proud to announce their firm has been chosen by Cabela’s, the World’s Foremost Outfitter, as a Landowner Services provider for Cabela’s Trophy Properties throughout the United States.  Visit us on the Cabela’s Trophy Properties website >> click here

The Mapping Network:  www.TheMappingNetwork.com

A Nationwide Network of GPS Mapping Professionals

Hydrographic Survey and Sub-Bottom Sediment Mapping as Part of Water Management Plan

Drought of 2012 Highlights Several Needs for Accurate Lake Maps

As the drought of 2012 continues on throughout much of the country we are receiving calls from homeowners, engineers and government agencies concerned about water levels in their lakes.  Whether it be for recreation, sediment build-up or monitoring sources of drinking water, the importance of having and accurate lake map has never been higher.  One agency told us they needed to have an idea as to what the lake surface area is and how the lakes elevation compares to lake volume.   They needed to complete a lake survey to make sure adequate water was available, so the pumps don’t run dry.  Another common challenge deals with the impacts of sedimentation in lakes.  A sediment survey can point out patterns and masses of build-up that can allow for a more focused dredge rather than a full-scale project.

Dredging is one of the most costly projects that a community or pond owner will incur during the life of a pond. Proper planning for a dredging project could mean cost savings. The Mapping Network understands the challenges and costs associated with locating and removing sediment. We specialize in accurately mapping bodies of water, calculating the water volume, collecting sediment depth samples at critical areas and monitoring the distribution of sediment over time.

Common questions from our clients:

  • Where is the highest sedimentation occurring?
  • How much sediment (in cubic yards) is in each cove?
  • If the lake is drawn down 5 ft, what would the shoreline look like?
  • How much water (gallons and acre-ft) is in the lake?
  • If we make each cove a minimum of 4 feet deep for boat access how much material do we need to remove?
  • By undertaking this mapping process will it save us money in the end?

Each of these questions can be answered by mapping the lake using The Mapping Network’s system. We are able to locate the problems areas and calculate the volume (in cubic yards) of material to be removed. The lake mapping data allows us to show the new shoreline if a lake is drawn down 1 ft, 5 ft, 10 ft, etc. Also, calculating water volume at various lake levels can be done.  One of the best aspects of the mapping process is it allows the owner and contractor to be on the same page. Successful planning and execution of the dredging project can ensue. We have seen clients save tremendous amounts of money by using The Mapping Network to survey their lake before undertaking the dredging process.

Below are a set of maps for a drinking water reservoir.  Originally built in the 1930’s, this lake has filled in substantially over time.  Now less than half the original lake capacity remains.  With a sustained drought there is a fear the lake will not be able to produce enough water for the city.  Engineers and the local government used The Mapping Network to survey the current lake depths along with charting the original lake bottom.  The final maps revealed a substantial sediment problem throughout the entire lake.  Plans are underway to remove sediment and regain much of the carrying capacity of the lake.

Current and Original Lake Depth

The top map shows the current lake depths. The bottom map was produced using a hydroacoustic sub-bottom profiling system along with manual sediment probes. Engineers and lake management professional around the country have benefited from this specialized technology offered by The Mapping Network.

Sediment Survey for Dredging

Map showing the amount of sediment throughout the lake (top image). The capacity of this lake has been greatly reduced due to over 70 years of sedimentation. The bottom image shows a grid pattern with the amount of sediment measured in feet. Engineers will use this data to create a dredging plan.

The Mapping Network is an industry leader in Hydrographic Surveys, Bathymetry, Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail: info@themappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

The Mapping Network is proud to announce their firm has been chosen by Cabela’s, the World’s Foremost Outfitter, as a Landowner Services provider for Cabela’s Trophy Properties throughout the United States.  Visit us on the Cabela’s Trophy Properties website >> click here

The Mapping Network:  www.TheMappingNetwork.com

A Nationwide Network of GPS Mapping Professionals

Sediment Mapping Saves POA Hundreds of Thousands of Dollars in Dredging Costs

by Trent Lewis (Pond Medics, Inc.)

We recently worked with Lakeside on Preston HOA, in Plano, on their dredging project. The lakes in the community were approaching 18 years old and sediment had accumulated in the lakes to the extent islands had formed as if there were underwater volcanoes erupting and new land was emerging! Lakeside knew dredging was imminent, so they called several dredging contractors and asked them to submit quotes to perform the work. What they received from the contractors was a multitude of different opinions on what the lake bottom looked like and what needed to be dredged. As a result, they had many different quotes to choose from. But, what was the right choice? Our work began when the lakes and landscape committee chairman called us for help.

Mapping the lakes was the best option for fully understanding the severity of the sediment issues.  Once the maps were complete, a meeting was organized to review the maps and determine the areas the HOA deemed most important to dredge. This would help focus the dredging efforts and help reduce overall dredging expenses. Using the data we collected to make the bathymetric map, we were able to calculate the cubic yardage of sediment needed to be removed in the critical areas the HOA identified. Now, Lakeside on Preston had objective, hard data from which to ask for dredging quotes. It was no longer subjective to what the dredging company thought needed to be done. For the first time in the Lakeside dredging project, the community was at the helm. The critical dredging area data was tabulated, formatted into a visual exhibit, included in a new Request for Proposal (RFP) and present to the dredging contractors.

 The new dredging proposals were received two weeks later and reviewed. The first time Lakeside did this, they received quotes that varied in excess of 300% from one contractor to another. This time, after our new RFP was sent out, we received quotes that were within several thousand dollars of each other. Finally, Lakeside was able to compare “apples to apples” between dredging contractors. Why? All the contractors were all looking at, and bidding from, the same data.  Shortly thereafter, Lakeside on Preston chose a dredging contractor to perform the work and dredging began. PondMedics stayed on to assist the HOA with the project administration. The dredging contractor used the maps to help locate the areas they were contracted to dredge.

When all the lakes were completely dredged, we re‐mapped the lakes.  Because we were able to map the lakes prior to dredging, we could now provide Lakeside on Preston HOA a complete set of “before and after” maps. An otherwise unseen world, was now revealed to the community and everyone was able to see the underwater changes. Lakeside on Preston will present the completed project to the residents during the spring Annual Meeting, using the before/after maps to demonstrate to the residents how their money was used effectively in this dredging project and how the lake maps saved the POA hundreds of thousands of dollars.

Larry Hairston, a member of the board of directors and the lake committee chairperson for Lakeside on Preston HOA summarized it this way:

“When I first looked at the proposal the HOA had previously obtained it was in the neighborhood of $450,000 to perform the dredging. By going to multiple vendors with the information you [PondMedics, Inc.]supplied, the prices eventually came down and the final cost is in the neighborhood of $200,000. I am certain we saved well over $200,000 by competitively bidding the projects, but more specifically by determining the amount of silt to be removed. The other valuable service PondMedics performed was confirmation of satisfactory completion by the dredging company, using the mapping technology.”

A color-shaded sediment map created by The Mapping Network. Our automated sediment mapping system can precisely locate problems areas needing to be dredged. Knowing exactly where to remove sediment not only saves the client money, but protects the environment by limiting the extent of the dredging footprint.

The Mapping Network is an industry leader in Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail: info@themappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

The Mapping Network is proud to announce their firm has been chosen by Cabela’s, the World’s Foremost Outfitter, as a Landowner Services provider for Cabela’s Trophy Properties throughout the United States.  Visit us on the Cabela’s Trophy Properties website >> click here

The Mapping Network:  www.TheMappingNetwork.com

What is the Best Time of the Year to Map Your Lake?

Right Now!  The Mapping Network maps lakes throughout the entire year but typically the best time to map a lake is from fall until spring, while the weeds are down.  Understanding exact acreage, depths, and chemistry of your lake are critical factors for making the best management decisions in 2012.  Armed with this knowledge you will be able to properly place structure, deliver appropriate stocking densities, select the correct fish species, apply the right amount of weed control, and of course gain a better idea where those bass may be hiding!   An accurate lake map provides the information needed to make the most of your aquatic resource.   The Mapping Network provides the highest quality and is the most affordable bathymetric mapping system on the market today.  If you are serious about maintaining  a high-quality lake or pond, be sure you have the ability to make the best decisions,  get your lake mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

phone:  (402) 241-8177

e-mail:  info@mappingnetwork.com

website: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!

3D color-shaded depth map created by The Mapping Network shows extensive detail of the lake bottom.

About The Mapping Network:

The Mapping Network is an industry leader in Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

What is Being Left on the Bottom of Your Lake?

Most lakes and ponds are fed by rivers and creeks and water isn’t the only thing being carried into the lake.  Something unseen is slowly accumulating on your lake bottom – Sediment.   When flooding occurs, the increased river levels cause extremely high amounts of sediment to be deposited into your lake.  Sedimentation is one of the costliest problems facing lakes due to the difficulty of removal.  If you live on a lake that is fed by a creek or river, there is a high need to monitor and map out sediment accumulation.  Learn more about our Sediment Mapping here >> Sediment Mapping Detailed. 
Here at The Mapping Network, we specialize in accurately mapping bodies of water, calculating the water volume, collecting sediment depth samples at critical areas and monitoring the distribution of sediment over time.  We have a nationwide group of professionals specializing in all facets of lake management.   If you are serious about maintaining  a high-quality lake or pond, be sure you have the ability to make the best decisions,  get your lake mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.

Locations of sediment depth points collected. Each cover where a creek entered the lake was surveyed for sedimentation. The results of this project will assist lake managers in creating dredging plans.

Map displaying sediment depths with color-shading to visualize the areas of high sedimentation.

The Mapping Network is an industry leader in Geographic Information Systems Consulting, Data Conversion, and GPS Data Collection.  We specialize in terrain and sub-surface (bathymetry) GPS mapping.   If you are serious about maintaining  a high-quality golf course, lake or pond, be sure you have the ability to make the best decisions,  get your resource mapped by the professionals at The Mapping Network.   Give us a call or send an e-mail to find out more details.phone:  (402) 241-8177e-mail: info@themappingnetwork.comwebsite: www.themappingnetwork.com

Check out The Mapping Network on Facebook for more examples and success stories!