A long-sought second Fire Department ladder truck to be based in Bradford will become a reality thanks to a $4 million federal grant. The Haverhill Firefighters Grant Writing Team said yesterday it secured a SAFER—Staffing for Adequate Fire and Emergency Response—grant that will pay for 16 additional firefighters over the next three years. As late as this past spring, Fire Chief Robert M. O’Brien made the case that Bradford requires its own ladder in light of plans to replace the Pfc. Ralph T. Basiliere Bridge over the Merrimack River. He was thankful for a budget that allowed for four-person crews at Water Street, but called for more help.