Spring Creek Track Water System
ESE provided utility design and permitting of a multi-phase project, which included the replacement of the existing water tanks, service laterals, fire hydrants, and approximately 11,000 linear feet of water main in the Forest Service cabin tract on the south shore of Lake Tahoe.
Project Elements
Utility Coordination
Water System Design
Project Description
As the project was funded through a phased assessment of the cabin owners within the tract, ESE broke out the work into phases that would allow the system to continue to function with minimal temporary bypasses and other work, and would fit within the anticipated assessment collection timeframes. Further assisting the tract in the calculation of future assessments and reserve requirements, ESE prepared a reserve study of future maintenance and capital replacement costs for a 60-year analysis period.
ESE coordinated a new field survey to supplement aerial and field survey prepared for an earlier water system project in the 1990s; the new survey covered the limits of the remaining water system improvements in the tract. The 2015 construction phase included the replacement of the existing polyethylene storage tanks with a welded steel tank, installation of 800 linear feet of main, and replacement of the controls system.
As part of this phase of design, prepared a life-cycle cost analysis evaluating tank material types as the tank site is located within an avalanche zone.
The remainder of the project was constructed in a single phase over the 2017 and 2018 building seasons. Already subject to TRPA standard building season limitations, the construction sequencing was further constrained by active nesting areas designated by the Forest Service within or adjacent to the tract. ESE prepared a WaterCAD model of the system to determine the available domestic and fire flows and resulting pressures to demonstrate compliance with El Dorado County Health and Lake Valley Fire Protection District requirements. We also assisted the client with the approval of the tract’s 20-year special use permit with the US Forest Service, assisted the tract with contracting for the removal of an obsolete reservoir and concrete dam as required by the Forest Service, prepared a stormwater pollution prevention plan for the 2017/2018 construction, and conducted land coverage and capability verification and project construction permit processes with the Tahoe Regional Planning Agency.