Here's the news release from Metro:
Los Angeles, Calif. – The Los Angeles County Metropolitan Transportation Authority (Metro) and its contractor, Kiewit Infrastructure West, plan to open two key ramps — the Westbound Wilshire on-ramp to the Northbound I-405 and the Northbound I-405 off-ramp to Westbound Wilshire — on Friday, August 31 to L.A. motorists, approximately three weeks earlier than scheduled and just in time for Labor Day weekend.
The ramp closures, popularly known as “Ramp Jam” or “Rampture,” were originally scheduled for 90-day closures that officially began on June 22. They were originally scheduled to reopen September 22.
Kiewit benefited from built-in contract incentives to complete work early in efforts by Metro to reduce the duration of traffic impacts resulting from major construction activities. Work crews worked day and night to demolish and rebuild the ramps. Additionally, the project team scheduled the work after UCLA’s quarter ended in June, resulting in lighter local traffic conditions that allowed construction crews to take all needed lane closures and accelerate their work.