The expansion works for Marin General Hospital’s $394m project has started in Greenbrae, California, US.

LBL Architects designed the expansion project to replace the existing hospital.

The ground breaking for the new hospital is planned in January 2016, while it is expected to be operational in mid-2020, northbaybusinessjournal.com reported.

"The project has been designed to include a new emergency drop-off area and a bigger loading dock to manage additional traffic and equipment."

The new project will feature a four-storey and 260,000ft² hospital building, as well as a five-storey and 100,000ft² ambulatory services building and two parking structures.

Under the project, 60 private rooms will be constructed at the West Wing, where 19 rooms are designed to accommodate double beds in an emergency, according to the news publication.

The labour and delivery department will feature 12 patient beds. New facilities have been designed to include larger operating rooms and an emergency department with enhanced diagnostic and treatment capabilities.

The project has been designed to include a new emergency drop-off area and a bigger loading dock to manage additional traffic and equipment.

Each patient room in the facility will feature a floor-to-ceiling window with views of Mount Tam, the grounds or rooftop garden, in a bid to make the rooms more private.

Marin General Hospital provides programmes and services for cancer, diabetes, emergency and trauma, as well as endoscopy, heart and vascular.

It also offers paediatrics, imaging, orthopaedics, spine, brain and rehabilitative services.