TOLONO — Some improvements will be added to those already being made at Unity High School this summer.

The school board last month voted to issue $3.5 million in bonds to pay for renovations at the 54-year-old school. On Wednesday, the board approved some work in addition to the $2.3 project of upgrading mechanicals and $100,000 locker room renovations.

Painting will be done in the locker rooms and in the gymnasium, where suspended steam air handlers have been removed. Record boards in the gym will be removed and either stored or sold to alumni; a former student's painting of a rocket will remain.

Shower and restroom fixtures in the locker rooms will be replaced.

School board member Roger Oakes asked if the additions would put the project over budget.

"We're well within what we need to do," Superintendent Andrew Larson said.

And the school's electrical service will be upgraded from 1,200 amps to 2,000 amps for the new HVAC installation.

Meanwhile, Larson said, work has begun on a new geothermal heating and cooling system. Geothermal wells are laid out near the school's baseball diamond, and the main piping is being run throughout the building.