Abiqua Creek is the main water supply for the city of Silverton, which also gets water from Silver Creek and stores water in Silverton Reservoir. The Abiqua Creek water reaches the city from a diversion dam in the Cascade Range foothills at RM 10.4 (RK 16.7). The diversion dam's higher elevation above sea level allows water to flow to the Silverton water treatment plant without pumping.