Work on the new family aquatic centre in downtown Windsor is back on schedule.

Construction was thrown slightly off track when heavy equipment operators went on strike for 12 days in the spring.

Project manager Don Sadler said the time has now been made up.

"We poured a third of the floor deck, which is the ceiling of the basement ... the main spine of the building. That was pretty important to get that done because it's the location of the start of the structural steel of the building," Sadler said.

Sadler said the $77-million project is still within budget.

The competitive pool section of the aquatic centre is to be ready in time for the International Children's Games, which Windsor and Essex County are hosting in August 2013.

"We're quite pleased that we are meeting the schedule and any time we have the odd little bit of delay we're able to make it up in other parts of the workmen's shifts so everyone is working hard on site," Sadler said.