1 ฤดูกาล
6 ตอน
Engineering on the Edge - Season 1 Episode 3
Trask and his crew scale Sutro Tower to inspect crucial cable junctions and must avoid deadly radiation at nearly 1,000 feet in the air; in Oregon, loose boulders need to be removed along a cliffside road that needs to be reopened.
- ประเทศ : United States of America
- ประเภท : Documentary
- ผู้อำนวยการ :
- นักแสดง :
