PHOENIX - The north runway at Phoenix Sky Harbor International Airport was closed for construction work Thursday which will last through Nov. 6, officials say.

Officials announced the closure in September, saying the airport would close its north runway (Runway 8/26) for construction and maintenance projects.

Arrivals and departures could see delays of up to 30 minutes during peak travel times (7:30 a.m. to 10 a.m. and 5 p.m. to 8 p.m.).

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"Passengers who have tight connections should contact their airline if they are concerned about having enough time to transfer between flights," airport officials said in a release announcing the closure. "Additionally, passengers and those picking up passengers should check flight status with their airline before coming to the airport."

According to officials, the primary reason for the closure is to install a new power supply system from an electrical substation north of the airport to Terminal 3.

"This is necessary for the Terminal 3 modernization project," officials said. "Which will provide a more efficient and consolidated security checkpoint, more space for passengers and state-of-the-art technology systems."

Officials also say maintenance work will be done on the runway while it's closed for the project.