BOSTON -- Officials plan to open the last remaining section of the Central Artery tunnel system this weekend that was closed after a fatal ceiling panel collapse.

Gov. Deval Patrick announced Friday that the Interstate 90 East High Occupancy Vehicle tunnel to Logan International Airport will reopen Saturday at about 2 a.m.

The tunnel's ceiling support system underwent a complete review in the wake of the July 2006 accident that claimed the life of Milena Del Valle. Since then, a new bracket and hanger system has been installed to support the concrete panels in the exhaust plenum located below the roof.

"The process of thoroughly examining, remediating and reinspecting the tunnel's ceiling support system has now been completed," said Transportation and Public Works Secretary Bernard Cohen. "This was an exhaustive but necessary process to restore public credibility in this project and certify the safety of the tunnel system."

The tunnels were repaired in phases, and crews addressing the most critical tunnels first. Limited eastbound access resumed in September 2006. In November 2006, Ramp D reopened, which connected the Ted Williams Tunnel to Interstate 93 northbound and southbound.

In December 2006, the Westbound connector tunnel reopened. The entire eastbound connector tunnel reopened in January 2007. In late January 2007, Ramp L, which provides a direct connection from I-93 North to I-90 East, Logan and Route 1A, reopened.