Poomala Dam Pictures - Thrissur, Kerala Poomala Dam is in Thrissur district,Kerala. Poomala dam uses for irrigation purpose which is in Mulankunnathukavu Panchayath in Thrissur. Poomala dam is a good tourist spot in Thrissur. In 1939 a division weir was constructed in the Poomala Valley and in 1968 a Poomala reservoir