Despite the new tunnel,there are still a few people who rash

Despite the new tunnel,there are still a few people who rashly..这句话中despite后为何只加了个名词?
Despite the new tunnel,there are still a few people who rashly attempt to cross the Pass on foot.
这句话中despite后只加了一个名词,总局的少了点什么?能不能说成:
1.Despite the new tunnel had been build,there are still a few people who rashly attempt to cross the pass on foot.
2.Despite the new tunnel had been build,a few people rashly attempt to cross the pass on foot.