City of Cork Act 1786

Said bridge must be so constructed as to leave a passage for ships.

XX. And to the intent the navigation of the said northern branch or channel of the said river Lee, running through the said city and suburbs thereof, may receive no prejudice: be it enacted by the authority aforesaid, That the said bridge so to be erected or built over the said northern channel of the said river Lee, in any part of the city of Cork or suburbs thereof, below the said north bridge to be appointed as aforesaid, shall be so constructed and built as that there shall remain a free and open passage for ships and vessels to pass and repass through the same; and that for fuel purpose, the said bridge so to be built over said northern channel of said river as aforesaid, shall contain one or more lifting or port cullis bridge or bridges of at least twenty-eight feet in the clear in length.