The southbound Interstate 405 off-ramp to eastbound Wilshire Boulevard officially opened to workday rush-hour commuters Monday morning in Westwood.
The ramp, now 300 percent longer, provides a dedicated lane for all exiting traffic to the Westwood area.
"Working with the contractor, we were able to completely eliminate several other extended ramp closures here at the Wilshire Interchange," said a Metro spokesperson.
"By the end of this year, we anticipate finishing all of these ramps and finally bringing some much-needed relief to Westside motorists."
The eastbound Wilshire on-ramp to I-405 north is the last ramp that remains under construction at this intersection, and is scheduled to open in November.
All ramps at Wilshire were rebuilt as part of the widening of the 405 freeway between Interstate 10 and U.S. 101.
The project will complete the last remaining gap of the 405 carpool lane network between Orange County and the San Fernando Valley. When complete, the 405 will have the longest continuous, bi-directional carpool lane network in the country.