Information on Great Bay’s Portsmouth and Rochester campuses, including building hours, contact information, campus locations, and maps, can be found here.

Campus Building Hours

Great Bay’s building hours for Fall 2022 are as follows:

Portsmouth Campus

Monday to Thursday 
7:00am – 9:40pm*

7:00am – 5:00pm

Saturday & Sunday 

*Hours for specific departments/services can be accessed below

Rochester Campus

Monday & Tuesday 
10:30am – 9:00pm or last class

Wednesday & Thursday 
9:00am – 6:00pm or last class

By appointment (current students only)

Saturday & Sunday 

Directions, Maps & Contact Information

Great Bay Portsmouth

Main Campus
320 Corporate Drive
Portsmouth, NH 03801

Phone: (603) 427-7600
(800) 522-1194
Fax: (603) 334-6308
Email: askgreatbay@gbcc.edu

TDD/Voice: Relay New Hampshire
(800) 735-2964 or 711

Great Bay Rochester

Technical Skills Campus
5 Milton Road
Unit 32
Rochester, NH 03867

Phone: (603) 427-7700
(800) 522-1194
Fax: (603) 330-3001
Email: askgreatbay@ccsnh.edu


Additional Information


• Monday to Friday the Services/Building closes after the last class is dismissed.

• Building may be open additional hours to accommodate classes already scheduled, these hours will not be posted individually. 

• Building Hours reflects the hours of operation if you are actively in class or using the Study Lounge on the Rochester campus. 

• These “Building Hours” are subject to change based on classes running and coverage.  The security personal will ask you leave once the last class is dismissed for the evening. 

• Rochester Campus doors are currently still locked at all times.  Please use the buzzer to the left of the door to request access to the building. 



Great Bay campuses will be CLOSED and NO CLASSES will be held on the following days:

Labor Day
Monday, September 5th, 2022

Veteran’s Day
Friday, November 11th, 2022

Thursday, November 24th to Friday, November 25th, 2022

Winter Holiday
Saturday, December 24th, 2022 to Sunday, January 1st, 2023

Martin Luther King Jr./Civil Rights Day
Monday, January 16th, 2023

President’s Day
Monday, February 20th, 2023

Spring Break*
Week of March 12th to 19th, 2023
*No classes, campus open (limited hours)

Memorial Day
Monday, May 29th, 2023

Monday, June 19th, 2023

Independence Day
Tuesday, July 4th, 2023