PipelineMapping.com is a specialised part of Merrett Survey Limited's worldwide survey services. We have worked on airborne LiDAR projects across Europe, Africa and Asia. Merrett Survey actively seeks work throughout UK and overseas, so please let us know if we can assist you - anywhere.
One of our most prestigious projects to date has been to assist the UN with defining the international Boundary between Nigeria and Cameroon. We have also done the same for the UN on the Kuwait-Iraq border. We have carried out numerous survey projects in Ethiopia, providing a number of highway surveys including one from Harar to Jijiga, which was approximately 117km. In Ethiopia, we have also carried out verification surveys, proof surveys, new and feasability studies.
Merrett Survey have worked extensively throughout Asia, countries we have worked in include:
Bangladesh, Cambodia, India, Iraq, Kazakhstan, Kuwait, Nepal, Oman, Philippines, Russia, Saudi Arabia, Thailand, Turkey, Lebanon, Vietnam and Azerbaijan.
In Cambodia, we carried out a survey for a highway improvement scheme from Phnom Penh to Ho Chi Minh City in Vietnam.
Merrett Survey have carried out numerous topographical surveys for housing developments in Kuwait. We have also provided highway surveys and all carried out topographic surveys for oil field development. We have provided other surveying services including oil well stake out surveys, rig move surveys, surveying of gathering stations and access roads.
Merretts provide topographic surveys for a wide variety of clients anywhere in the world. Recent projects have included road surveys, railway surveys, airport surveys, coastal monitoring, boundary surveys and providing ground control for aerial mapping projects.
We have worked extensively in Europe on a diverse range of projects, from using a terrestrial laser scanner to survey a ship, to cliff monitoring and providing airborne LiDAR services. We have provided GPS ground control for airborne LiDAR in:
Belgium, France, Germany, Greenland, Ireland, Italy, Norway, Spain and the UK.
In Europe we have provided GPS control surveys for Intertial Measurement Unit (IMU) in pipeline detection tool. Using GPS, we measure traps, welds and control points along the pipeline in order to correct IMU drift. This correction is done using our specially designed in-house software and minimises dig time and costs when locating pipeline defects and anomolies.
Merrett Survey have worked in many North American countries including: Bermuda, Jamaica, Mexico, Puerto Rico and the USA.
In Bermuda we provided survey services for the Department of Public Works. We provided a high accuracy GPS levelling network.
In Jamaica ground control was provided for a photogrammetric aerial survey which was for the improvement of a sewage and drainage system.
We have carried out pipeline mapping in Mexico as well as GPS and consultancy work. We have provided training for pipeline inspection company stafff. Data correlation services for offshore pipelines where merging MFL data with ROV submarine mapped route. We mapped onshore pipelines using our non-IMU mapping method, see our dedicated pipeline mapping website for further information.
We have worked in many American States providing ground control for airborne LiDAR surveys of powerlines and railway corridors. Our experienced GIS experts also transformed the large LiDAR data sets by converting them from one co-ordinate system to another. We are experienced with dealing with numerous grids and datums worldwide. In America further consultancy services were provided in order to validate the horizontal and vertical accuracy of the data against "test sites" that were surveyed. We provided an independent verification of the LiDAR. Our GIS and CAD experience can help to display and understand the large data sets that are collected with airborne LiDAR.
States we have worked in include: Alabama, California, Conneticut, Florida, Maine, Massachussets, Michigan, Mississippi, Missourii, New Hampshire, New York, Rhode Island, Tennessee, Texas and Vermont.
Merrett Survey have worked in Ecuador, The Falkland Islands and Venezuela.
In Venezuela we carried out a GIS asset survey to identify areas where the pipeline needs to be thickened or diverted. Our surveyors walked the pipeline route mapping features for integration into GIS.
Our in-house software classifies the pipeline automatically using the rules laid out in either 854.1(c) in ASME B31.8 or the UK equivalent, IDE/TD/1. The software solution aids in determining class locations by analysing the number and type of buildings and population density within a certain proximity to the pipeline.
By using GIS we can help identify parts of your pipeline which are subject to more rigorous regulation, helping to keep operating costs low while ensuring that the pipelines are operating as safely as they should.
In AustraliIa and New Zealand, Merrett Survey provided ground control for airborne LiDAR surveys of powerlines and railway corridors. The large LiDAR data sets needed to be transformed by converting them from one co-ordinate system to another. We are experienced with dealing with numerous grids and datums worldwide.
Further consultancy services were provided by validating the horizontal and vertical accuracy of the data against "test sites" that were surveyed. Merretts provided an independent verification of the LiDAR. Our GIS and CAD experience can help to display and understand the large data sets that are collected with airborne LiDAR.
Surveying 240 miles north of the Arctic Circle in Greenland presents many challenges, but Lidar provided a rapid and detailed survey to enable the design of a new open pit mine, plus access road to/from the camp/dock location, 600 below. We also own and operate a terrestrial laser scanner that can be deployed to scan the interior of mines and can deploy a remotely operated vehicle where access to the mine is difficult.
If you are looking to source a LIDAR survey, please contact us with details regarding the service you require. We can provide or source LiDAR surveys for you based an independent appraisal of your requirements.
If you are a LiDAR service provider, we can provide independent confirmation of LiDAR accuracy and offer GPS and ground control services - worldwide. We also offer a full range of LiDAR processing services, such as proivding coordinate transformation services and processing the LiDAR into digital products such as DEM, DTM and contour maps. Products for this job included LiDAR data, contour maps, imagery and digitised features plus ground surveyed boreholes locations
Merrett Survey Ltd was commissioned to carry out a terrestrial laser scan survey of the supports for the atrium roof at the Ministry of Education's new Headquarters in Kuwait.
The purpose of the scanning was to survey the roof support upstands and truss positions. These were then compared to the design drawing to ensure that the roof would fit when installed. Numerous discrepancies were discovered by the survey and had to be corrected prior to installation of the new roof.
One of our most prestigious projects to date has been to assist the UN with defining the international Boundary between Nigeria and Cameroon. We have also done the same for the UN on the Kuwait-Iraq border. We have experience of working in over fifty countries around the World on a diverse range of survey projects.
Peter Merrett (Director at Merrett Survey) was a tutor at one of IBRU's workshops (International Boundary Research Unit) at Durham University, providing training on the practical aspects of boundary demarcation and geodetic control networks. He has also presented papers for the ILMF (International LiDAR Forum) in the USA and at pipeline conferences in Europe.
PipelineMapping.com is a specialised part of Merrett Survey Limited's worldwide survey services. The company started trading in 1982, so in August 2012 Merrett Survey celebrated 30 years of topographical survey business. Based in the South West of England we have expanded to work throughout the world in over 50 countries including Australia, New Zealand, Algeria, France, Guinea, Bermuda, Philippines and the USA to name but a few.
Merrett Survey was one of the first commercial organisations to invest in GPS technology so we have built up a mass of experience and knowledge. More recently we have been applying the latest surveying technologies including airborne and land based laser scanning ( LIDAR ).
It is the aim of Merrett Survey to meet the needs of our clients by
providing a high quality and cost effective service. We will advise and
put forward innovative ideas and new technology to benefit all parties
by working in Partnership.
Merretts put forward innovative ideas and use new technology. We offer a wide range of survey services.
Our client list includes:-
World Bank / Asian Development Bank
Environment Agency (UK)
Ordnance Survey (UK's National Mapping Agency)
IGN ( France's National Mapping Agency )
DPWH (Department of Public Works and Highways, Philippines)
UN (United Nations)
""Their deep understanding of GPS & rigid quality controls has particularly impressed us""
""Merretts have shown themselves to be technically very capable, providing a positive professional approach""
"Merretts provided an excellent service when called upon. They were responsive, helpful, innovative and effective and worked well as part of the overall team delivering emergency response to the South West of England."
3, Merlin Business Park, Fairoak Close,
Exeter Airport, EX5 2UL, UK
For UK and 'rest of the world' use-
Telephone +44 (0) 1392 362161
Fax +44 (0) 1392 362289
3, Merlin Business Park, Fairoak Close, Exeter Airport, EX5 2UL, UK
+44 (0) 1392 362161