Nils F. Ambursen established the Ambursen Hydraulic Construction Company to promote his innovative dam designs.
What are some notable dams designed by Nils F. Ambursen?
How did Ambursen's design improve cost efficiency in dam construction?
What was the main innovation in Nils F. Ambursen's dam design?
Which dams designed by Nils F. Ambursen are listed on the National Register of Historic Places?