The last two miles of the Pacoima Wash will be converted into a concrete flood-control channel under a $6-million plan approved Tuesday by the Los Angeles City Council.
When the project begun in 1984 is complete, Pacoima Wash will be confined within man-made structures from a point 1 1/2 miles north of the Foothill Freeway to the Los Angeles River, said Los Angeles County Board of Public Works spokeswoman Jean Granucci.
The county will pay for most of this leg of the project, which county supervisors approved in March.
The improvements will help surrounding residential areas by reducing flooding of low-lying properties and city streets during heavy rains, Granucci said.
During stormy weather, the wash has flooded parts of Lassen, Plummer, Nordhoff, Rayen and Parthenia streets and created traffic hazards.
The potential for flooding has increased in recent years because of heavy construction in the northeast San Fernando Valley, Granucci said.