9 الموسم
77 حلقة
Extreme Engineering - Season 5 Episode 2 الحلقة 2
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.
- عام: 2011
- بلد: United States of America
- النوع: Documentary
- ستوديو: Discovery
- الكلمة الرئيسية: engineering
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