- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
The lake is formed by a rolled earth fill dam 2,400 ft in length (including the service spillway) with a 600-foot-wide uncontrolled spillway near right (west) end of dam. Deliberate impoundment began May 1, 1957. The outlet works consist of four 35 ft wide X 10 ft high tainter gates, each with a one ft stop log on top. The low-flow outlet consists of a valved, controlled 24 inch concrete pipe for low-flow releases. The dam is owned by the Angelina-Nacogdoches Counties Water Control and Improvement District No. 1 (Angelina-Nacogdoches Co. WCID#1). The water is used for industrial purposes (Luminant Energy. Southern Company Power) in the surrounding area, with the City of Henderson holding an option for future water use. Discharge is into the channel of the service spillway. Data regarding the dam are given in the following table:
Elevation (feet) Top of dam............................................................ 309.0 above NGVD29 Conservation Pool..................................................... 293.0 above NGVD29 Crest of emergency spillway........................................... 294.0 above NGVD29
Lowest gated outlet (invert).......................................... 282.0 above NGVD29
