There are five hurdle heights on most standard hurdles. Behling continued to run track in college, competing in the 400-meter hurdles. The course's obstacles included logs, small wooden hurdles and a sand trap. In track, Griffin broke state records for the 110-meter and 300-meter hurdles. He was timed at 14.05 seconds in the 110-meter hurdles. There are also numerous technical hurdles to overcome when recycling plastic. Natasha Danvers won the 2000 NCAA 400-meter intermediate hurdles. The merger faced many legal hurdles and opposition. In track & field, Clark competed in events ranging from sprints, hurdles and jumps. However, the walk was delayed due to substantial logistical hurdles. The project faced multiple hurdles, which forced its temporary abandonment. There are considerable regulatory hurdles that must be cleared for such therapies. Blair was a track and field athlete, who competed in the hurdles. Initially, Moses competed mostly in the 120-yard hurdles and 440-yard dash. Women historically competed in the 80 meters hurdles at the Olympics in the mid-20th century.