AFE 22384, Chopaka, British Columbia, 1923. Place 200 Cubic Yards Heavy Rip Rap Along Bank About 850' East of Milepost 150, and 100 Cubic Yards of Rip Rap About 750' West of Milepost 163. Interstate Commerce Commission Account Number 3, Grading. Cost: $1585. Series II. Lines West. Marcus Division. Other Subject Categories: Track Maintenance, Rip Rap