Details of the 405's weekend closure in July: it's Big


We told you a couple of weeks ago that the I-405 freeway upgrade project is about to get serious — leading with a complete shutdown in Sepulveda Pass for the weekend of July 16-17. Now come the details, and if you don't think it's serious, when was the last time you saw a news release issued jointly by Caltrans, Metro, the California Highway Patrol, the Los Angeles Police Department and the L.A. Fire Department?

The regional scale of the disruption is simply impressive. I love this sentence:

Motorists who must travel through the Los Angeles metropolitan area are advised to use alternate freeways within the region, including the 5, 15, 23, 55, 57, 101, 118, 126, 210, 605 and 710 freeways to bypass the impacted area.


Traffic conditions on local streets and freeways within the region of Los Angeles County and beyond are expected to be severe, with significant, multi-hour delays.

On the map above, you can see they contemplate using the single-lane roads through Topanga Canyon and Malibu Canyon to relieve pressure. In its simplest form, the problem is that the northbound San Diego will be closed to all but local traffic for ten miles — from the 10 to the 101. Southbound, it's a four-mile stretch from the 101 to Getty Center Drive. The closure will basically extend from Friday night to Monday morning that weekend, to begin destruction of the tall Mulholland Drive bridge over the freeway. It will also have to be done again a year later to demolish the rest of the bridge. Sepulveda Boulevard will be local only during the shutdown.

More to come on all this, but here's the release and here are some detour maps.

Map from the release

More by Kevin Roderick:
Standing up to Harvey Weinstein
The Media
LA Times gets a top editor with nothing but questions
LA Observed Notes: Harvey Weinstein stripped bare
LA Observed Notes: Photos of the homeless, photos that found homes
Recent Mobility stories on LA Observed:
Questions big and small for Measure M
California Incline redo in timelapse
Expo Line buzz lifts rail system numbers
Two Metro lines for two different LAs
Real estate developers: all aboard Expo
Expo Line to Santa Monica opened Friday at noon
Obama returns Thursday, Trump (not) here Friday*
Hollywood versus the freeway that carries its name


LA Observed on Twitter