Where an object has fallen onto a road so as to cause an obstruction, the roads authority shall, where practicable, intimate to the owner of the object that he must remove it forthwith; and if the owner cannot be traced or if he fails to remove the object within a reasonable period of time after being so notified or if the case is one of emergency, the roads authority shall remove it themselves.

Pending the removal of such an object by the owner or by the roads authority, the authority may take all reasonable steps (including the placing of lights, signs and fences on the road) for the purpose of warning road users of the obstruction.

Any expenses reasonably incurred by the roads authority under this section may be recovered from the owner; but no such expenses shall be recoverable if the owner proves that he took reasonable care to secure that the object did not cause or contribute to an obstruction.

The roads authority shall, where practicable, give notice to the owner of an object of its removal by them under subsection (1) above; but if the owner cannot be traced or if after a reasonable period of time after being so notified he has not recovered the object, the roads authority may dispose of it.

Any proceeds of a disposal under subsection (4) above shall be used in the first place to meet the expenses reasonably incurred by the roads authority under this section and thereafter any surplus shall be given to the owner if he can be traced and if he cannot may be retained by the roads authority.