“Wahkiakum County Consolidated Diking District 1 Flood Damage Reduction Project” is a federally authorized and constructed and non-federally operated and maintained rural flood-protection project.

Diking District #1 was formed in 1914-1917.   Federal construction was completed in 1939 which raised and strengthened existing levees on Pacific Island and Little Island.

District #1 and #3 were consoldiated in 1951.