Great Bay Building Hours & Location

Portsmouth Campus

Monday to Thursday 
7:00am – 9:00pm*

Friday  
7:00am – 4:00pm*

Saturday & Sunday 
Closed

*Monday to Friday the building closes after the last class is dismissed

Rochester 

GBCC Rochester Building hours follow published course meeting times for instructors and students in Welding, CNC and NDT. All visitors and those seeking GBCC services should contact our Portsmouth Campus.

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: [email protected]

TDD/Voice: Relay New Hampshire
(800) 735-2964 or 711
www.relaynewhampshire.com

Rochester Building

Welding and Advanced Manufacturing Labs
5 Milton Road
Unit 32
Rochester, NH 03867

Phone: (603) 427-7600
(800) 522-1194
Fax: (603) 334-6308
Email: [email protected]

HOLIDAYS & CLOSURES

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

Veterans’ Day
Monday, November 11, 2024

Thanksgiving Day & Day After Thanksgiving
Thursday and Friday, November 28 and 29, 2024

Chancellor’s Holiday/Winter Recess Day
Tuesday, December 24, 2024

Christmas Day
Wednesday, December 25, 2024

Winter Recess
December 26 to December 31, 2024

New Year’s Day
Wednesday, January 1, 2025