Residents in Rowley will go to the polls Tuesday to vote on a Proposition 2½ debt exclusion for a $11.7 million police-fire station project.

The measure required a two-thirds majority at last Monday’s Town Meeting, and while residents raised questions and voiced concerns, the measure passed by unanimous voice vote.

“We haven’t run into any negative feedback at all to this point,’’ Selectman David Petersen said. “The need is so great; it’s pretty obvious we need this.’’

The debt exclusion would cost the owner of an average single-family home valued at $415,000 about $359 extra over the next 20 years.

This is the third time since 1999 that residents will vote on debt exclusions to fund police-fire facility projects. Previous plans — for $4 million in 1999 and $6 million in 2004 — failed.

“This is the time to do this,’’ Petersen said, noting the upward trend in construction costs. “This is an investment in our community.’’

The plan includes an expansion of the current police station, which was built in 1985. A fire station would be built on the same lot. The current fire station, formerly a hall that dates back to 1880, has been used as a fire station since 1936, Petersen said.

“The town desperately needs to expand the current police station,’’ Town Administrator Deborah Eagan said. “The police have needed to rent modular units, and the size of the fire station is inadequate for their equipment.’’

Also at Town Meeting, residents approved an $800,000 feasibility study for renovation to the Pine Grove Elementary School. The Massachusetts School Building Authority is working with the town on the project and is expected to provide a partial grant.

By voice vote, residents also voted down two motions by resident Stephen Comley, a longtime activist with concerns about the Seabrook nuclear plant evacuation plan. The first requested the Board of Selectmen ask the Nuclear Regulatory Commission to hold a public hearing to receive and discuss information regarding the effectiveness of the Seabrook evacuation plan. The second asked that the board read a letter into the record relating to the evacuation plan as well as the theft of citizens’ signs.

David Rattigan can be reached at drattigan.globe@gmail.com.