9 Sezon
77 Episod
Extreme Engineering - Season 5 Episode 2 Episodul 2 (2011)
The Hoover Dam Bypass Project aims to remove traffic congestion along U.S. Highway 93 at the Colorado River crossing. A new arch bridge will span the river near Hoover Dam.
- Țară : United States of America
- Gen : Documentary
- Studio : Discovery
- Director :
- Distribuție :