With a recent push by city officials and hillside residents, L.A. County Department of Public Works engineers are taking a fresh look at some old ideas for increasing the capacity of the Mullally debris basin.
Located just east of the top of Ocean View Boulevard at the end of Manistee Drive, Mullally was never more noticeable than during the post-Station-fire storms of February 2010. Large rocks and other debris brought down from the hillside by heavy rains clogged the basin’s drainage system and sent a wall of mud into yards and homes.
County officials worked over the summer to expand Mullally’s capacity, and the basin handled December’s storms without incident.
But now engineers are back at work on a more than decade-old idea to help prevent dangerous clogs by running an additional drain westward under Manistee Drive and straight into nearby Pickens Canyon.
“We’re developing the concept, identifying all the constraints of putting it in,” said Chris Stone, assistant deputy director of the county Public Works’ Water Resource Division.