Carolinas Medical Center-NorthEast will extend its emergency department to new buildings in Harrisburg and Kannapolis and will group urgent care, medical offices and other services in a new Concord building.
Crews have begun building two of the three facilities, and infrastructure is being designed for the third.
Carolinas HealthCare System is paying $51 million for all three.
A 24-hour emergency department in Kannapolis is planned to open in January 2012.
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The health-care pavilion, on Lane Street near I-85, will be called CMC-Kannapolis. The one-level, free-standing building will be similar to what's proposed in Harrisburg.
Town manager Michele Reapsmith said construction of the Harrisburg facility is the next step after sewer lines are installed this September.
"As the economy is coming back around, it is necessary to keep any revitalization efforts in the forefront, providing support and guidance to ensure that project owners have what they need to proceed," Reapsmith said in an email.
"Harrisburg has not had any significant development for a few years, as a lot of places have not, and we welcome good growth and development within our borders."
A second Gateway Medical Office Building is planned to open in February 2012, on Copperfield Boulevard in Concord.
The development projects are part of an ongoing mission to upgrade existing facilities, expand service and enhance CMC-NorthEast, said Lee Brower, director of internal communications for Carolinas HealthCare System.
The expansion will offer more residents access to health care closer to home, and the buildings are likely to spur future development.
"You want health care as close to you as possible, and that's what the concept of these pavilions is based upon," said Brower.
"It will provide local, emergency care. It'll be more convenient, there will be easier parking, greater access and much more modern facilities.
"That location in Harrisburg has great potential for economic development. Any construction project is a positive for Cabarrus County," said Brower.
"We'll be employing people, and these are major projects."