Construction has begun on the pool area of the Mundelein High School natatorium.
Begun just days after the close of the boys' swimming and diving season, the $2.8 million project was made possible by a spending plan voters approved in April 2011.
The pool was built in 1987 and the mechanical systems have become outdated.
Additionally, Mundelein High can't host swim meets because the depth of the pool no longer meets national standards.
Superintendent Jody Ware has asked that parents, students and community members be extra cautious when walking or driving on the east side of the campus. Also, contractors will be parking in the north lot, which will limit the availability of parking spaces for others.
Construction is scheduled for completion by Oct. 31. Until then, the Mundelein High water polo teams and swim club will meet at other high schools in the area.
The installation of artificial turf at the Mundelein High School football stadium is another project funded with money from the 2011 voter-approved construction plan, which extended debt and did not raise property tax rates.
The football field should be ready for the fall season, officials have said.