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Sierra Drive Stormwater Improvement Project

Last updated Jan. 30, 2018 - 9:17 am
  • Planning
  • Design
  • Construction
  • Completed
  • Storm Drainage System
  • $1 million
  • Stormwater Management (Lead)
  • HDR, Inc.

Current Activity

Posted Monday, Jan. 29

Alternate analyses to determine and recommend solutions for the existing flooding and erosion issues at Sierra Drive are complete. Final design for Phase I of this project, conducted by HDR, Inc., is underway.

Summary

This project includes evaluating the existing storm drainage system capacity as well as investigating and choosing the best improvement alternatives to correct identified flooding and erosion issues.

The preliminary study was conducted in three phases:

  • Existing conditions analysis;
  • Alternatives evaluation/selection; and,
  • Conceptual (preliminary) plans.

The goal is to study, analyze, and implement project(s) to alleviate structure/public street flooding and erosion.

Schedule

Project schedule with dates and descriptions
DateDescription
Fall 2012First public meeting held
Spring 2013Planning study complete and second public meeting held
Spring 2018Phase I design begins
Fall 2018Phase I design complete
TBDPhase I construction

History

The existing Sierra Drive stormwater drainage system includes a series of both open channel and drainage pipe conveyances. Various secondary drainage systems discharge to the primary piped storm sewer system located along Balboa Road toward Lawrence Drive. Outfall from the Balboa Road storm sewer drainage system is via an open channel until it discharges through a culvert underneath I-40.

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