Posted at: 11/12/2012 7:50 AM
Updated at: 11/12/2012 8:05 AM
(ABC 6 NEWS) -- Monday marks a big day for the construction of one building at Mayo Clinic.
Mayo leaders and construction personnel will be in attendance to install the final steel beam in the Jacobson building.
This building will be home of the Mayo Clinic Proton Beam Therapy Program.
Construction is on schedule but is expected to take another three to four years to finish.
Monday's ceremony starts at 10 a.m.