Paragraph 71 Facilities for navigationI1

The undertaker must not in the exercise of the powers conferred by this Order interfere with any marks, lights or other navigational aids in the river Thames without the consent of the PLA, and must ensure that access to such aids remains available during and following construction of any specified work or the exercise of any specified function.

The undertaker must provide at any specified work, or must afford reasonable facilities at such work (including an electricity supply) for the PLA to provide at the undertaker’s cost, from time to time such navigational lights, signals, radar or other apparatus for the benefit, control and direction of navigation as the undertaker or the PLA may deem necessary by reason of the construction and presence of the specified work and must ensure access remains available to such facilities during and following construction of the specified work.