The District Council 33 contract with Philadelphia was endorsed Tuesday by 96 percent of the members who voted.
With that approval, the 9,000 members of the city’s largest municipal union are in line for immediate raises.
The new contract is retroactive to July 1, 2009, and goes through June 30, 2016.
“I want to thank the membership for their support, and I look forward to being back in negotiations in early 2016, with a new mayor,” said Pete Matthews, union president.
The workers will receive a $2,800 signing bonus, as well as a 3.5 percent raise this month and a 2.5 percent raise in July.
The contract agreement follows a five-year standoff betwen the union and Mayor Michael Nutter.