To date this year 152 people have been arrested for drunk driving, in comparison to 148 in the same comparative period last year.
Here in Thurles, 149 vehicles passed through the checkpoint, with 102 drivers being breath tested, resulting in just one suspected arrest.
The high visibility checks are understood to have been set up as part of a roads operation begun late last year called Operation Surround, where Gardaí have promised to conduct Mandatory Alcohol Testing (MAT) checkpoints, targeting intoxicated drivers particularly at weekends, throughout the country.
In Waterford, 612 vehicles passed through Garda checkpoints, with almost 400 breath tests conducted, resulting in one person being detained.
Checkpoints were also mounted overnight in areas of Kerry and Limerick, but no drivers were arrested on suspicion of drunk driving.