RECYCLED WATER SYSTEM EXPANSION DESIGN | CITY OF HEALDSBURG – 2020

Myriad Engineering provided drafting and design assistance services for approximately 10,000 LF of recycled water for crop irrigation of agriculture properties in the surrounding hillside area of Healdsburg. The project scope included 3,600 feet of 12-inch pipeline, 6,000 feet of 8-inch pipeline, a Booster pump station, and all appurtenances required for a functional system. 

We developed the recycled pipe plan views using Google Earth. The recycled pipeline tie-in location was an existing 16-inch diameter pipe located on a levee. We developed the cross section based on contours and information from the City Project Manager. The pump station details were prepared using manufacturer cut sheets and partial CADD drawings. We prepared the pump station building details using the size of the pump station footprint, maintenance and electrical layout clearance requirements, and City PM input. The pump station location required installation of new electrical power along with details for the electrical panel and electrical conduit trenching. For security, fence and gate details were developed. Since the pipe was being routed through steep terrain in some locations, we developed a trench dam detail. City details were used for thrust blocking, air release valves, and road crossing. We prepared details for the City PM-designed items, including tie-in locations and creek crossings. 

The original design was expanded from approximately 5,800 LF to 10,000 LF. Myriad Engineering was able to accomplish this within the original budget with a small change order for a pump station redesign to mitigate environmental requirements. The pump station redesign was completed in September 2021. 

Scope of services:

  • Project design
  • Data review
  • CADD
  • Project management