Dayville Mills Hydroelectric Facility, North side of Route 101, .5 mile west of Route 395, Killingly Center, Windham County, CT

Significance: The Dayville Mills Hydroelectric Facility provided power to the Dayville Mills Complex until c1962. In 1858 Sabin L. Sayles and Harris C. Sayles of Pascoag, RI, built a textile mill building in Dayville. In the mid 1800's the area was characterized by an influx of out of state firms moving in and expanding the textile industry. In 1883 a 50 foot by 200 foot 4-1/2 story brick structure was erected by the Sabin L. Sayles Co. This woolen goods manufactory became the principal industrial institution in the village of Dayville. In 1993 the building stands vacant. The hydroelectric facilities at the Dayville Mills Complex were built c1858 to provide power for the textile machinery. In c1924 a new powerhouse was constructed. The hydropower facilities extant in 1993 consist of a powerhouse, generator, turbine, and gateworks which were all retired from service c1962.
Survey number: HAER CT-145