Sierra Drive Stormwater Improvement Project
- Storm Drainage System
- $1 million
- Stormwater Management (Lead)
- HDR, Inc.
Posted Wednesday, Dec. 19
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. The design is expected to be finished in the spring.
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.
|Fall 2012||First public meeting held|
|Spring 2013||Planning study complete and second public meeting held|
|Fall 2018||Phase I design begins|
|Spring 2019||Phase I design complete|
|Fall 2019||Phase I construction begins|
|Fall 2020||Phase I construction complete|
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.