OBSTACLES FOR CRAWLING
These obstacles (Figure E-6) include large pipe sections (tunnels 4 feet in diameter and 8 feet long); low rails (8 inch diameter log, 8 feet long, and 2 feet off the ground); and wire (all wire lanes will be 10 feet wide, 30 feet long, and 2 feet off the ground).
Figure E-6. Crawling obstacles
