The next chapter in the saga of the Upper Haight's sewer and pipeline replacement begins this week on Belvedere Street, Hoodline has learned.

Beginning on the block between Haight and Waller, and with work impacting parking at all hours, this is the first leg of an ongoing project to replace sewer mains between Haight and Frederick streets. For the duration of the work, the street will be closed from 7:30am to 5pm. 

Coma Te, a spokesperson for Public Works, confirmed via email that construction is expected to take about six weeks to complete and that sewer work will be immediately followed by repaving.

Depending on the state of the sewer laterals (privately-owned pipes that connect homes to sewer lines) after the mains are replaced, the city may decide to extend work to further improve local infrastructure.

Many homes have sewer laterals that date back to their original construction. Modern builders use plastic, but older homes may have laterals made from cast-iron pipes or even "3-foot sections of terra cotta pipe with bell joints," according to SFGate.

"Work will also be done on Belvedere between Alma and Parnassus once work is completed on these first few blocks," Te said. "Work will involve sewer main replacement, as needed lateral replacement, pavement renovation, paving and traffic striping."