It shall be lawful for an officer of the highway authority duly appointed for the purpose, at all reasonable times, on giving to the appropriate authority such notice as may in the circumstances be reasonable, to enter upon and inspect any part of the works authorised by this Act which is in or over any highway, or which may affect any highway or any property of the highway authority, during the carrying out of the work, and the appropriate authority shall give to such engineer or surveyor or officer all reasonable facilities for such inspection and, if he shall be of opinion that the construction of the work is attended with danger to any highway or to any property of the highway authority on or under any highway, the appropriate authority shall adopt such measures and precautions as may be reasonably necessary for the purpose of preventing any damage or injury thereto.