Traffic alert: Del Amo/Madrona/Mariner impacts are active now. 

1. The City says lane closures tied to a Water Replenishment District raw-water pipe project run through Friday, April 10. Impacts include: westbound Del Amo Blvd. left turns to southbound Madrona Ave. reduced from two lanes to one; southbound Prairie/Madrona reduced from three lanes to two continuously; April 6–10, 8:30 a.m.–3:30 p.m., southbound Prairie/Madrona is reduced to one lane; and April 6–10, 7 a.m.–4 p.m., southbound Mariner Ave. is closed from Challenger St. to Del Amo Blvd. with flagger-controlled access. The City advises drivers to avoid the area and use alternate routes.