In 2012 we carried out a topographical survey along 26km of the existing
A5025 on Anglesey for Horizon Nuclear Power.
The purpose of the survey was to allow the designers, Mott MacDonald, to
design access improvements from the A55 expressway to the Wylfa
nuclear power station site on Anglesey. The improvements are required
for the future construction of the Wylfa B power station, to be constructed
alongside the existing power station.
A rigorous control station network, comprising of 200 stations was
installed along the route. The positions were determined by GPS RTK
methods, tied into the Ordnance Survey Active Network and subsequently
transformed to the client’s local grid requirements. The levels were tied
into the OS datum by double run spirit levelling.
Survey data was collated using both Leica GPS RTK equipment and
where higher accuracies were required by Leica total stations.
The completed survey data was presented to the client in CAD and MX
Genio formats.
Topographic Survey - A5025, Wylfa Power
NRG Engineering Services Ltd
Land and Engineering Surveyors
Station, Anlesey
