NORTHAMPTON — After receiving a gift from donor Mary Ann Cofrin, Cooley Dickinson Hospital has completed a $16 million campaign to renovate and expand its Emergency Department — a feat that the hospital referred to as the largest capital campaign in its 140-year history.

The new Emergency Department is 40% larger than its previous space, with an additional nine patient rooms including more behavioral health beds, according to Kelly Mitchell, a spokesperson for the hospital’s parent company Mass General Brigham.

Cooley Dickinson President and COO Kevin Whitney lauded the successful completion of the project and expressed gratitude for the donors who supported the campaign.

“This renovation and expansion would not have been possible without the incredible generosity of our community, of donors like Mary Ann Cofrin, who stepped forward to ensure that high quality care is available when and where it is needed for every person,” Whitney said in a statement. “It is also important to acknowledge our providers who continued to provide 24/7 lifesaving care throughout the renovation.”

Hospital officials celebrated the completion of the campaign at a ceremony last Friday, at which they unveiled a new 13-foot plaque on the exterior of the hospital that reads: “You Are Welcome Here.”

Four years since the campaign began, close to 2,000 donors have come forward to support the Emergency Department project. Donations, Mitchell said, helped transform a “1970s-era space” into a more modern facility with “new, advanced lifesaving equipment.”

While the newly expanded section of the Emergency Department opened last summer, the legacy section of the department’s yearlong renovation finished this spring. This expansion, Mitchell wrote, will help staff deliver more efficient care with reduced wait times.

“Every day our trusted clinical colleagues save lives,” Chief Development Officer Diane Dukette said.  “And our community, our donors, gave so generously to help expand and enhance that lifesaving care. This project, and this campaign, simply would not have been possible without the amazing generosity of our community, for which we are forever grateful.”

In addition to what Mitchell described as a “generous” financial gift, Cofrin’s also donated the new plaque on the outside as well as a new sign inside the Emergency Department. Mitchell said that while some donors might have opted to place his or her name on a plaque, Cofrin chose to step away from the spotlight and instead focus on a message of inclusion. The interior sign is translated and displayed in the six languages most frequently spoken by patients at the hospital.

“When you are in need of care, what is more important than feeling welcome,” Cofrin said in a written statement. “We live in a world where not everyone is — or  feels — safe. It is important to say the words ‘you are welcome here,’ so people know that if you are sick, you can be cared for at Cooley Dickinson by trusted, compassionate, and highly skilled providers.”