In 1952, Lake Eucha in Delaware County, Oklahoma, was created by completion of the Eucha dam on Spavinaw Creek.

[2] This lake is owned by the City of Tulsa, Oklahoma and functions as additional storage and as a buffer for Lake Spavinaw, which is the principal municipal water source for Tulsa.

[3] The Cherokee community of Eucha, Oklahoma was relocated to higher ground before the dam was constructed, because the lake waters were to submerge the original townsite.

[4] Lake Eucha is also a popular place for fishing.

W. R. Holway is credited with the design and construction of both projects.