The District made a commitment to preserving the environment and respecting Native American and other historical sites in the watershed. Construction began on September 17, 1994. In the first year, the new portion of Vasco Road was completed and half of the pipeline was finished. On the dam site, the spillway was under construction
By 1996, the pipeline was complete, work was well underway on the Old River pumping station and the dam's foundation had been dug. In 1997, most of the major construction was complete with the dam finished in December. The dam is made of 3 million cubic yards of tightly compacted fill.