Category:April 1922 in construction

Media in category "April 1922 in construction"

The following 2 files are in this category, out of 2 total.

• 
  Construction work at east portal of tunnel designed to carry water from Gorge Dam reservoir to powerhouse, April 1922 (SPWS 193).jpg 400 × 600; 73 KB
  
• 
  Penstock tunnels under construction at the Gorge Dam Powerhouse site, April 1922 (SPWS 163).jpg 768 × 510; 94 KB