University spokesman Mark Land says construction workers had found unsafe levels of asbestos in caulk around windows.
It will be just over a million square-feet with the upcoming expansion, to be completed in September 2016.
The increased police presence begins Friday and ends Sunday.
It shields students from school discipline if they seek medical help for themselves or others for drug and alcohol abuse.
The casino teamed up with Major Hospital System last year to begin offering the on-site clinic.
Officers were called to the 600 block of Turtle Creek South Drive around 5:20 a.m. This is near US 31 and East Thompson Road.
Equipment is set up along I-65 on the south side of Greenwood. Workers are building a new $16 million interchange.
Southbound traffic was being diverted off I-69 at Exit 255. Drivers were advised to avoid the area.