Mount Sinai Health System announced on Tuesday that phase one of a $500 million project to rebuild Mount Sinai Beth Israel and create the new “Mount Sinai Downtown” network is set to start.

The network will expand and renovate three sites of outpatient facilities, according to the hospital, which will stretch from the East River to the Hudson River below 34th Street. The network will include 35 operating and procedure rooms and a network of 16 physician practice locations with more than 600 doctors.

The project will be anchored by a new Mount Sinai Beth Israel inpatient hospital, including a new state-of-the-art emergency department, according to the health system.

Mount Sinai Beth Israel will still be open during renovations and the ER will be operational until the new department is ready, the hospital said.

“Our more than $500 million investment marks an exciting time, not only for Mount Sinai’s employees and patients, but also the entire Downtown community, as we truly transform how patients access and receive the health care services they need,” said Dr. Kenneth L. Davis, CEO and president of the Mount Sinai Health System.

The project includes plans to strengthen behavioral health services and New York Eye and Ear Infirmary of Mount Sinai will also get a little sprucing up.

According to Mt. Sinai, all union employees affected by the transformation would be offered other union opportunities at equal pay and so far, more than 150 Mount Sinai Beth Israel hospital employees have accepted new positions at the same or higher salaries with the Mount Sinai Health System. 

For more information, visit Mount Sinai’s Downtown Transformation website at www.mountsinai.org/downtown.