For the second time this summer, a major water pipe has burst at Farranfore, the village serving the N22 main Tralee to Killarney Road, as well as Kerry Airport.
Heavy goods trucks as well as huge volumes of traffic in the village, which has been awaiting a bypass since 2003, is felt to be responsible.
Homes and businesses in Farranfore and several villages across mid-Kerry as far as north Cork have been left without water.
The road was heavily flooded this morning and motorists were being asked to avoid the village if they can.
It is understood the burst in the 600mm water supply pipe, this time near the railway station, was reported at 7am by a man on his way to work in Tralee. The road had dipped and water was pouring out.
In a joint statement, Irish Water and Kerry County Council said this was "a large burst".
The burst pipe in the Farranfore area is impacting water supplies to customers in parts of north and central Kerry, it said.
"Irish Water, in partnership with Kerry County Council, is working to restore the water supply following this large burst."
The areas affected include the greater Scartaglin, Cordal, Currow, Farranfore, Firies, Castlemaine and Milltown areas.
Crews have been on the ground since this morning and work is continuing to isolate and repair the section of pipe.
Works are underway with @countykerry to restore the water supply to customers in greater Scartaglin, Cordal, Currow, Farranfore, Firies, Castlemaine and Milltown areas following a burst pipe in the Farranfore area. See https://t.co/V19cxpKejQ for more. #IrishWater— Irish Water (@IrishWater) August 15, 2019
It was expected that supply should be restored this evening.
On 20 July a burst pipe on the opposite side of the road, in the centre of the village, led to major flooding and huge traffic tail backs and delays. Thousands were left without water across Kerry
Locals say large heavy trucks passing through the mid-Kerry village are responsible for the breakages.
A bypass of Farranfore, west of the village and bypassing Killarney to join the Cork-Killarney road at Lissivigeen was unveiled in 2003. It was due to be completed by 2009, but has never gone ahead.