Road planning survey underway in Norway
We are geoscanning critical areas to reduce geological risk for a national highway through the City of Gjøvik, some two hours north of Oslo / Norway
If you are in the area, you want to know about the following, as published by Nye Veier:
Nye Veier is working on solutions for the new rv. 4 on the stretch Hunndalen-Mjøsbrua in Gjøvik municipality. As part of the knowledge base, geoscanning will be carried out using a helicopter over threeareas in Gjøvik during the period 26-31 May. The measurements are carried out to map the ground conditions in connection with the planning of the new road.
Purpose of the survey
Geoscanning is a type of ground investigation that quickly maps the ground conditions. The purpose is to map the thickness of sediments and, if possible, to identify types of sediments in the area. Furthermore, occurrence of black shale is mapped. This is necessary information to be able to proceed with the planning of the new road. The measurement results are used to get an overall overview of the geology in the project area. By uncovering challenging ground conditions early, this will lead to cost and time savings.
Surveys will be carried out in the three areas Bassengparken, Steinsjordet and Ramberget illustrated with shaded yellow fields in the map section.
How the survey is carried out
The helicopter will fly over the areas with measuring instruments. The measuring instruments consist, among other things, of a circular antenna that hangs under the helicopter as shown in the picture.
The helicopter will fly back and forth along planned flight lines with approximately 25 meters distance, and the antenna hangs about 10-20 meters above the terrain or obstacles. The flight takes place at a relatively low speed of about 10-50 km/h. The equipment used emits electromagnetic waves that are not harmful to humans or animals. The public will notice normal noise from the helicopter while the measurements are taking place. We ask that you do not enter the relevant areas when the surveys are taking place and keep a distance from the helicopter.
EMerald Geomodelling and SkyTEM Surveys will carry out helicopter-based geoscanning on behalf of Norconsult for Nye Veier
