Take a look at this #land and #water #mapping project!
#topo #hydrography #mine #bathymetry
https://themappingnetwork.wordpress.com/2015/03/25/land-and-lake-survey-of-active-sand-and-gravel-mine/ http://ow.ly/i/a5YSt
The Mapping Network provided a hydrographic and land survey of an active sand and gravel operation. The mining operation wanted a view of their lake bathymetry to see if there were any areas they still needed to dredge. The also will be using this information for an upcoming wetland creation project.
3D shaded water depths of a sand pit.
About The Mapping Network:
The Mapping Network is an industry leader in Geographic Information Systems, GPS Data Collection, Aerial Imagery, and Data Conversion. We specialize in terrain and sub-surface (bathymetry) GPS mapping, topographic mapping, and aerial imagery. 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 Twitter or Facebook for more examples and success stories!
The Mapping Network is excited to announce it has been selected to be a part of Society of Lake Management Professionals (SLMP). The SLMP is an exclusive group of the very best lake and pond management companies in the country.
Their mission:
To foster an appreciation for and enhance the management of ponds and lakes, managed by for profit companies, with particular concern for the aesthetic and recreational uses and stewardship of such waters. Using tools such as innovation, education, representation, accreditation, and standardization of best management practices. Advocate wise stewardship of privately owned water, promote and recruit fishing opportunities in private water environments, and protect our environment.
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 Twitter or Facebook for more examples and success stories!
A partner within The Mapping Network helped a Home Owners Association (HOA) be proactive and monitored the inflow of sediment into their lake based upon five-year intervals. Comparing water and sediment depth data from 2000, 2005, 2010, and 2015 the HOA discovered a increase in sediment rate from 2005-2010 due to heavy construction upstream.
This data helped the HOA establish baseline information on their lake and aided them with facts for working with developers who were responsible for the sediment. It is crucial to have a professional monitoring the sedimentation in your lake or pond to help protect you from sedimentation that occurs outside of normal rates.
The Mapping Network is an industry leader in Geographic Information Systems, GPS Data Collection, Aerial Imagery, and Data Conversion. We specialize in terrain and sub-surface (bathymetry) GPS mapping, topographic mapping, and aerial imagery. 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 Twitter or Facebook for more examples and success stories!
How much does dredging cost is the most commonly asked question for many lake associations. We sat down with Dan McDougal, President of Dredge America and asked him that question.
When lake homeowner’s call for our assistance with their potential upcoming dredging projects, the first question we usually get asked is, “How much does it cost?” This is usually followed by, “Just a ballpark figure that I won’t hold you to.” Then we often hear, “We have a board meeting tonight and I wanted to report on dredging to get the project moving.”
There are hundreds of variables that determine the cost of restoring a lake. There are three questions that need to be answered to begin the process of getting a ballpark feasibility price:
In order to determine a quantity, the first thing that is required is to perform a pre-dredge hydrographic survey (bathymetry). This type of survey will provide water depth information throughout the entire body of water. At the same time a sediment survey can be performed providing soft sediment thickness information.
It is money well spent at this stage to hire an experienced hydrographic surveyor with proper insurance and credentials. This will help protect the association if there is ever a dispute. The hyrdrographer will be able to give a general description for the soil characteristics and perform the sub-bottom profiling all in one site visit. With this information, you can make an informed decision about how much more data is needed in order to get the most cost effective proposal for your dredging project.
After you have quantified how much sediment needs to be removed, the next step is to find a place to put it. Most people underestimate the amount of space they need to place and contain the sediment that comes out of the lake. The size of area you will need will depend on many factors with the number one being the lay of the land. Usually for every two acres of lake that you dredge, an average of three foot of sediment, you will need an acre of upland area to place the material. This will yield an average elevation increase of six feet on land prior to consolidation. The closer this area to the lake, the cheaper the dredging costs will be with all other things being equal.
The final question to answer is the material characteristics. In most lakes, what is being dredged is often referred to as “muck.” This is generally a combination of silt, clay, and organics. There is also sometimes sand in the very end of the coves. The dredger needs to know this as sand is more costly to pump further, but easier to dewater; while muck pumps easy, but can be costly to dewater, particularly if the disposal area size is limited. Hard packed sand, or hard pan clay bottom, are more difficult to cut, and therefore more expensive. Rock is even more expensive and most often cost prohibitive. There should be a clear distinction if the dredger is expected to only remove sediment that has filled the lake since it was originally constructed, verses cut virgin ground that has never been excavated.
It is best to work with someone with many years of dredging experience to help guide you through the maze and advise you on what is needed, not needed, and what options you can elect for the associated costs. In the end, you want someone you can trust with a long history and who can supply you with pages of references. The very last thing you want is someone to learn about dredging on your project and on your dime.
So is your project feasible? If you can’t afford to have someone qualified come out and perform a hydrographic survey, the answer is no. If you can do this, then you can have a quantity and a three dimensional image of your lake bottom. With this critical information you can communicate with your neighbors on what the problem is, where it is, and a ballpark of what it might cost to fix it.
One final thing to consider is that all lake associations have more mud than money. With the hydrographic survey, you can set your priorities based on a realistic budget that your association is willing to spend. You and all of your neighbors live on a lake for a reason. It is a lifestyle. Your lake has to be maintained just like your roads and your sewers. To ignore it, is to ignore the largest asset in your community. Property values go down or up based on the quality of the lake.
If you have anymore questions for Dan McDougal, feel free to email
or call him 800.464.5597. You can also visit their website for more information.
The Mapping Network surveyed the bottom of the lake including the sediment depths. This map shows the lake water depth as blue contours lines as well as a color shaded sediment thickness. This specialized technology allows the POA to easily locate problem areas.
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 Twitter or Facebook for more examples and success stories!
The Mapping Network created a hydrographic and sediment survey for a property owners association (POA). The main lake inlet has shallow water because sediment settles at the mouth of the stream, creating deltas. The POA installed two sediment basins to capture sediment flowing from the north. However, as shown on the watershed map, much more sediment is flowing from the east (this includes residential areas and a golf course). The POA needed to quantify sediment build-up in their sediment basins and the main lake.
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 are maps showing the current water depth, sediment thickness, and total watershed.
Contour map of water depths for main lake and two ponds
Sediment depth for main lake and two adjacent ponds.
Watershed with shaded elevations.
About The Mapping Network:
The Mapping Network is an industry leader in Geographic Information Systems, GPS Data Collection, Aerial Imagery, and Data Conversion. We specialize in terrain and sub-surface (bathymetry) GPS mapping, topographic mapping, and aerial imagery. 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 Twitter or Facebook for more examples and success stories!
The battle against aquatic vegetation in lakes and ponds can be quite expensive. Understanding exactly where to apply a treatment will save time and money but more importantly provides a better opportunity to control aggressive non-native aquatic plant life.
Having a lake professionally mapped not only shows the water depths but the 3D model can be used for identifying potential problem areas. Proper tools for management decisions provide the information needed in controlling unwanted aquatic vegetation.
This map highlights depths up to 8 feet where invasive aquatic vegetation can grow.
About The Mapping Network:
The Mapping Network is an industry leader in Geographic Information Systems, GPS Data Collection, Aerial Imagery, and Data Conversion. We specialize in terrain and sub-surface (bathymetry) GPS mapping, topographic mapping, and aerial imagery. 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 Twitter or Facebook for more examples and success stories!
The Mapping Network has extensive experience performing hydrographic surveys on intake channels for power plants and drinking water intakes. On the example below The Mapping Network conducted a pre and post dredge survey along with calculating the amount of material removed. The map below is the post-dredge survey after all dredging operations were performed.
Post-dredge bathymetry survey of power plant intake channel.
About The Mapping Network:
The Mapping Network is an industry leader in Geographic Information Systems, GPS Data Collection, Aerial Imagery, and Data Conversion. We specialize in terrain and sub-surface (bathymetry) GPS mapping, topographic mapping, and aerial imagery. 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 Twitter or Facebook for more examples and success stories!
A common concern among pond owners is how much storage capacity has their retention basin lost since it was built? Overtime these basins fill in with sediment and lose their functionality for what they were designed. The big question is when does that happen?
A client in Kansas City, Missouri knew their pond was losing depth, but wanted to find out how much? And how long did they have before dredging was needed? The Mapping Network surveyed the pond to model the current lake depths. Since there wasn’t any as-built plans for a baseline, sediment depths measurements were collected. Using the mean sediment thickness of the sampled points, The Mapping Network was able to estimate the original pond’s water volume capacity and also how much of the capacity the pond has remaining. The study discovered that in just 22 years, the pond only has 54% of it’s original capacity left. This information allows the pond management team to begin planning for a future dredging project on the pond.
Start planning for this future expense by contacting a professional within The Mapping Network today.
Map of pond showing current lake depths (contour lines) and sampled sediment thickness points.
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, and recreational Real Estate listings. 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!
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