April 22–29, 1966: Flooding. Northeast Texas.
Twenty to 26 inches of rain fell in portions of Wood, Smith, Morris, Upshur, Gregg, Marion and Harrison counties. Nineteen persons drowned in the rampaging rivers and creeks that swept away bridges, roads and dams, and caused an estimated $12 million damage.
The Apri 1966 NE Texas Flooded
The rainfall was concentrated in the Sabine River basin, with high rates of runoff occurring from the headwaters of the Sulphur River southward to the Trinity River basin.
USGS — Summary of Floods in the United States During 1966 (full PDF report) A detailed hydrological record of the event including river basin data. 🔗 https://pubs.usgs.gov/wsp/1870d/report.pdf
- USGS Publication Page (web version) 🔗 https://www.usgs.gov/publications/summary-floods-united-states-during-1966