A group of twelve volunteers assembled at Dead Horse Parking lot, and one small group weed-whipped the trail from the parking lot down to Topanga Canyon Blvd, approximately 350 feet. After they finished they joined us further up the trail. The remainder hiked up the trail about 0.2 mile and commenced work, which consisted of cutting and clearing the brush on the edges of the trail, doing tread work where the water had damaged the trail, installed barriers and drains to prevent further erosion, filled in the area between steps that were eroded, and cleaned out an existing drainage that ran along side the trail (maybe 3 ft wide and 3 ft deep_ that had apparently got clogged and overflowed on to the trail and contributed to substantial erosion. Approximately 750 feet of trail were cleared, groomed and repaired in this section. Hiked back to parking about 2:30 p.m. 12 volunteers @ 6 hours for a total of 72 hours Approximately 1/4 mile of trail was weed-whipped, cleared and repaired.