UPDATE: The 405 project team says the Sunset Boulevard off-ramp from the 405 will close at 8 p.m., not 7 p.m. as we originally posted. 

A lot happening on the I-405 Sepulveda Pass Improvements Project beginning tonight. It boils down to this:

•A 120-day closure of the Sunset Boulevard off-ramp from the northbound 405 begins tonight (Friday, Aug. 2) at 8 p.m. It is scheduled to reopen on Dec. 1. The ramp is being demolished and rebuilt.

•Sunset Boulevard will be closed from 10 p.m. tonight until 7 a.m. Saturday between Church and Thurston.

•The on-ramp from Sunset Boulevard to the north 405 will be closed tonight at 8 p.m. and every night from 10 p.m. until 6 a.m. between tonight and Aug. 23.

•Sepulveda Boulevard will be closed between Church and Montana tonight and Saturday night from 10 p.m. until 8 a.m. the following mornings. On Sunday night and continuing until Saturday, August 10, the closures will be every night from 10 p.m. until 6 a.m. the next morning.

After the jump, I’ve posted the four construction alerts with more information on each of the four closures listed above. Detour information is included.

Sheet on the 120-day closure of the northbound 405 off-ramp to Sunset Boulevard:

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Sheet on the Sunset Boulevard closure:

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Sheet on the on-ramp closure from Sunset to the northbound 405:

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Sheet on the Sepulveda Boulevard closures:

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