The state Department Of Transportation has started replacing the guard rail system and cutting trees on Route 59 in Easton.  The work will continue for about a month and a half, and take place between 9am and 3pm, Monday through Friday.  Easton Police caution drivers to expect delays during these times along Route 59.  Work is starting in the Church Road area.  Drivers were urged to find an alternate route around Route 59 during the next 6 weeks.