Bat inspections - Kettering
We were requested to carry out surveys of an old tunnel that allowed a stream to pass through an old, disused railway embankment that required maintenance work to be carried out due to developing defects.
We carried out aerial inspections of the surrounding trees that could be impacted by the works as well as inspections of the internal and external potential bat roosting features of the tunnel. We subsequently carried out nocturnal surveys using night vision cameras and identified that bats were indeed using the features for roosting therefore a derogation licence could then be obtained from Nature England to do the work safely without adversely impacting the bats.
Below we show the location of external bat roost features (1st image) around the tunnel entrance that were gaps between the brick from missing mortar and these inspected by endoscope as well as the internal bat roosting features (2nd image) that were also gaps between the bricks from missing mortar on the tunnel barrel.
