The construction was supposed to be done by Monday, but transportation officials announced they will have to extend the road closure.
All lanes of Sepulveda Boulevard now will be closed from Church Lane to Montana Avenue, from 9 p.m. until 6 a.m. nightly through this Thursday, as crews work to regrade the street.
This is the latest phase of the 405 Freeway widening project, which kicked off last Monday. The project consists of squeezing three-quarters of a mile stretch of Sepulveda Boulevard down to about half of its size.
The $1 billion widening project, which began in January and brought us Carmageddon and Carmageddon 2, is due for completion by 2013.