Cops stood guard Sunday outside Woodhull Hospital, emptied after over a half-foot of rain drenched Brooklyn, sending over 100 patients elsewhere while officials turned off power and closed the facility for “several days.”

Administrators at NYC Health + Hospitals/Woodhull were reportedly meeting to figure out how to reopen as dozens of cops gathered outside the building in the wake of the Friday deluge.

A total of 116 patients were transferred to other NYC Health + Hospitals sites, allowing for the Brooklyn site to shut power and address flood-related damage, the hospital said in a press release.

It may take “several days” to determine damage and make repairs, the officials said.

“The health system has begun its assessment of the hospital’s engineering and electrical systems, to understand the extent of any damage caused. It is estimated the repairs could take a minimum of several days before the hospital can resume operations,” the hospital said.

It’s unclear when patients would be returned to the building.

The Post observed no Con Edison or other tradesmen entering or exiting the facility Sunday.

4 Officials turned off power and closed the facility for “several days.” Michael Dalton

4 A total of 116 patients were transferred to other NYC Health + Hospitals sites. Michael Dalton

Despite the chaotic flooding that led to the evacuation, no patients reported adverse effects, the hospital said.

Mayor Eric Adams lauded thousands of public servants who worked to keep New Yorkers safe during the potent storm — giving shout-outs to the staff at Woodhull and New York City Emergency Management, which “seamlessly transferred all of their patients to other hospitals to allow for electrical repairs to address the damage caused by the storm.”

Woodhull isn’t accepting any patients and will remain on diversion for all ambulances.

On Sunday, many of the ambulances dispatched from the facility brought patients about a mile and a half away to Interfaith Medical Center, while others were brought to Kings County and Wyckoff.

When the heavy rains hit Friday, the hospital initially used backup emergency power, but Con Edison needed to shut it down to make necessary repairs, the hospital said in a statement.

4 The Post observed no Con Edison or other tradesmen entering or exiting the facility Sunday. Michael Dalton

4 Despite the flooding no patients reported adverse effects. AP

The hospital estimates it will be days before the work is completed and the hospital can resume normal patient care.

No deaths were reported in the region as a result of the storm, officials said.

During the crisis, NYC Health + Hospitals credited help it got from New York City Emergency Management, the FDNY and NYPD, the city’s Department of Health and Mental Hygiene, as well as state and federal authorities and elected officials.