Frias Park at Decatur and Tropicana is designed to hold flash flood waters as well as being a park. Water comes in from the south side, flows through a flood channel, then out the east side in a controlled manner. The water is then cleaned and pumped into Lake Mead for use by residents. The multi-use facility area is about 30 feet lower than street level with south and west facing sides covered with rocks to prevent erosion. The flood channel is 15 feet lower than the grassed area, which has no equipment except for lights. So, if the entire area does flood, little if any damage will be done. This is a well-planned recreation / flood control area.