Here is some interesting items from GBRA's public info site related to this.
https://www.gbra.org/documents/news/2018/041801.pdfThis is my favorite part of the document.
Quote:
The dam at Lake Dunlap received substantial repairs in 2012 and is believed to be in good operational condition and is not included in these scheduled repairs.
So basically the stewards of this system of dams did some research and determined that there are tons of expensive repairs across our system and we are trying to figure out how to pay for them but the good news is that we are solid on lake Dunlap.
Quote:
These small lakes have provided the area with recreation and local economic activity since the 1930s; however, the electricity generated and sold no longer provides the revenue needed to repair or maintain the existing system.
This part answers the hydro electric generation question
Quote:
The system was purchased by GBRA in 1963 and consists of six dams and associated hydroelectric generation stations that were put into service between 1928 and 1932 forming lakes Dunlap, McQueeney, Placid, Meadow, Gonzales and Wood.
I'd be a little nervous if I were sitting on McQueeney, Placid, or Meadow right now. I wonder what the impact of another failure would be in terms of human safety and property. I would be pretty nervous considering they are currently trying to fix the ones that they deemed worse than Dunlap.
Quote:
Hydro Dam Repair Schedule Update March 20, 2019 Rehabilitation continues to preserve the Guadalupe-Blanco River Authority's (GBRA) 90-year-old hydroelectric system. Recent heavy rain and inflows, flood releases from Canyon Dam and the identification of additional needed repairs delayed work to the various dams and spillway gates. Additional parts are currently being fabricated and temporary repairs are being made to the existing spillgates until a permanent solution can be funded and constructed. Current estimates project repair work to continue through Fall 2019 with lake elevations impacted through the recreational season.
Temporary repair until we find funding sounds like a bad strategy when you have two dams that have sprung leaks.