The Pali Highway is completely shut down Saturday in the Kailua-bound direction and will remain closed until to 6 p.m., so state transportation crews can trim trees and remove boulders. The work is needed because of recent rock slides on the Pali Highway.  Meanwhile on the H-1 freeway westbound, two ramp closures are in effect Saturday through 10 p.m. The Pali Highway off ramp from the H-1 westbound and the Punchbowl Street on-ramp westbound are closed. Transportation crews will be removing large rocks for the H-1 Rehabilitation Project.