Boyne Navigation Act 1790

Until navigation completed to Trim, all tolls rased from Carrick lock to Drogheda, applied only to repairs, &c. there of, but when completed to Trim, then such tolls shall be applied to the purposes of the whole.

VII. And be it enacted, That until the navigation of the said river Boyne, shall have been completed to the town of Trim as aforesaid, all tolls which shall be raised upon that part of the said navigation which extends from Carrick-Lock to Drogheda, shall be applied only to the repairs and improvement of the same, but so soon as the navigation of the said river shall be completed to the town of Trim as aforesaid, then and not before, such tolls shall be applied to the purposes of the whole of the said navigation from Trim to Drogheda, in such manner as the said river Boyne company shall think fit.