The highway authority for a highway maintainable at the public expense may provide and maintain such barriers or other works as they consider necessary for the purpose of affording to the highway protection against snow, flood, landslide or other hazards of nature; and those works may be provided on the highway or on land which, or rights over which, has or have been acquired by the highway authority in the exercise of highway land acquisition powers for that purpose.
The powers conferred by subsection (1) above to provide any works shall include power to alter or remove them.
A highway authority shall pay compensation to any person who suffers damage by reason of the execution by them under this section of any works on a highway.