Welcome Bay Rd will be closed on May 19 and Poplar Lane on May 26 for the construction of the Waiāri water mains pipeline.
The Tauranga City Council said in a media release the closures were necessary to lay parts of pipe that cross the road.
Tauranga City Council is developing a new water supply which will be completed in late 2021.
It said the new water treatment plant was designed to serve the future needs of Tauranga, to add resilience to the city's water supply and provide backup for Western Bay of Plenty District Council's Te Puke water supply.
Construction started in 2018.
Waiāri water mains pipeline road closures this month
May 29 7am to 5pm - Welcome Bay Rd near Te Puke junction
May 26 6am to 6pm - Poplar Lane. Access to Papamoa Hills Park will be possible via Reid Rd, Poplar Lane residents will retain limited access.
Before and after these days, works may continue to cause some delays due to stop/go traffic management.
Find out more on the Tauranga City Council website.