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Network RTK Surveying in Great Britain

Company Director Anthony Pritchard attended a conference at Manchester United's Old Trafford Football Stadium. The conference revealed best practice guidelines for Network RTK Surveying in Great Britain. Research and testing was carried out by Newcastle University to prove the accuracies of this GPS technology which has been available and developing for nearly five years. The good news was that network RTK GPS when used by the approved methods, is giving consistent results that will fit the tolerances of many specifications. This will reduce survey fees as control stations can be established in seconds, rather than hours. Download the results using the TSA link on this website.

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Crayfish

A signal crayfish was found in Bampton, Oxfordshire. The invasive crayfish was accidentally trodden on by a surveyor whilst taking river bed levels. These crustaceans are becoming more and more prevelant in our watercourses as they push out our native crayfish. More work was undertaken in the Cotswolds as a result of the floods of July 2007. Surveyors have been capturing additional levels on existing projects as more flood relief options unfold.

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Over 5700 Levels Over 90 Hectares

Storm Geomatics took over 5700 levels over 90 hectares using an all terrain vehicle kitted out with Moving RTK GPS. The 15m grid of levels was captured on The North Wyke Research Facility, Okehampton, Devon. Ditch levels were also surveyed on foot using robotic total stations and pole mounted RTK GPS. The survey was part of a project to better understand the drainage situation at the grassland research station.

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Storm Geomatics in Bledington & Ireleand

A very busy month for Storm Geomatics. Surveyors carried out the survey work for an assessment on flooding in Bledington, Gloucestershire. The Environment Agency brief was to survey two reaches of different watercourses, a number of threshold levels and provide a topographic survey of an area that could potentially provide water storage. A broad range of survey techniques were used to collect the data from traditional spirit levelling to static GPS. The survey was delivered on time and within budget.

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Capturing Property Threshold Levels

Survey teams mobilized on a project to capture property threshold levels in the town of Abingdon, Oxfordshire. One thousand three hundred property threshold levels were surveyed using digital levels and data loggers. The client specified that 12 items of data for each property were to be collected and presented in a spreadsheet that contained address point data. Storm Geomatics have developed a data capture system that moves from field to finish seamlessly, thus providing a cost effective and time saving solution.

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County Roscommon, Ireland

Surveyors found themselves across the Irish Sea in County Roscommon, Ireland. Cross sections were surveyed on six watercourses in and around Roscommon town, ISIS models were then created of each watercourse. The river models were used to calculate river channel capacities as part of a review of the town's storm and foul water systems.

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Surveying the River Bourn

A survey of the River Bourn in Ashdon was carried out for a hydraulic engineering company. The survey included the data capture of forty cross sections and a number of threshold levels in the area. Flood plain levels were also captured and supplied in ISIS format with the channel data.

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Surveying Railway Bridges

Storm Geomatics were awarded a contract to survey the elevations of forty-two railway bridges that passed over watercourses. The bridge locations were spread from London to Carlisle and were requested to be tied into Ordnance Datum. The project is part of a scheme to improve flood warnings for the Network Rail infrastructure.

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Survey Teams Mobilised in Norwich

Survey teams mobilised on projects in Norwich, Barrowden in Rutland, and Bourton on the Water in Gloucestershire.

In Norwich, a fifty acre brown field site was levelled with two GPS RTK rovers in order to calculate a flood risk assessment for the site.

Storm Geomatics carried out a feasibility study on a mill pond restoration project at Barrowden. The original channel to the Mill pond has been filled in, and has left the pond stagnant. Surveyors worked out a route to take water off the nearby River Welland, and working with hydraulic engineers, provided an outline scheme and costing to bring fresh water back to the pond.

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Storm Geomatics Awarded Contract

Storm Geomatics were awarded the contract to survey a complex network of drains, watercourses and ditches near Doncaster, South Yorkshire. Up to twenty-five hydraulic models will eventually be constructed and be interactive with each other allowing engineers to have a better understanding of the flooding issues in the area. The job to date has been noted for its blackthorn bushes and its problems with security.

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