Phase 1 of the upgrade is complete.
The Lidl junction in Sallins will open this afternoon, ahead of schedule following on-going works in the village.
Phase 1 upgrade works to Sallins wastewater network began on the 10th of January, closing some roads in the village.
Phase 2 of the upgrade is due to begin on Monday, 24th January.
Irish Water had previously noted Sallins, Clane, Naas, Newbridge and Kill were served by a wastewater network which was no longer fit for purpose, leading to overflows and flooding during storms.
Cllr Carmel Kelly of Fianna Fail commented: " It's wonderful that we are ahead of schedule, but these works are going to continue until the end of February.
"We are ahead of schedule for the first phase, it means the link road into Sallins is now open.
"Millbank was an oasis on its own for awhile," she said.
"Sallins is open for business," she insisted.
Cllr. Kelly spoke with Ciara Noble on Friday's Kildare Today:

Disappointment As Parochial House In Celbridge Set For Future Plans Still Not Purchased By KCC
Initial Scoping Exercise Undertaken For Future Management Of Curragh
ESB Identifies Two Kildare Areas As Dangerous For Swimming, As Heat Warning Continues
€640,000 Worth Of Cannabis Seized In Ballymore Eustace
Kfm Obituary Notices
Uisce Éireann Works Cancelled In Prosperous And Rathangan Tomorrow
Trailer And Tools Worth Over €8,000 Stolen From Farm In Athy
Disruption To Water Supply In Four Areas Of Kildare Tomorrow, As Temperature Warning Continues