Lower Blackburn Grade Bridge - Credit: Wikimedia Commons
Lower Blackburn Grade Bridge - Credit: Wikimedia Commons
The Lower Blackburn Grade Bridge, also named the Van Duzen River Bridge or Mile 18 Bridge, is a reinforced concrete through arch with a main span approximately over the Van Duzen River about west of Bridgeville, California, United States. It was active from its construction in 1925 to 1985 when replaced. Read more on Wikipedia
Source: en.wikipedia.org