A person liable to maintain a highway by reason of tenure, enclosure or prescription has, for the purpose of repairing it, the like powers with respect to the getting of materials as are conferred on a highway authority by section 45(2) to (6) above for the purpose of repairing highways maintainable at the public expense by them.

A person on whom powers are conferred by this section is, with respect to the exercise of those powers, subject to the like duties and liabilities under section 45(10) and (11) above and under section 46(1) to (3) above as are a highway authority with respect to the exercise of the powers conferred on them by section 45.