A rendering of the plants and soil for the bioretention on Peterson Street

Water and Sewer

Peterson Street Bioretention

Green Stormwater Infrastructure

We are constructing a bioretention area in the grass median between the sidewalk and road on Peterson Street. The project is engineered to capture, absorb, and clean stormwater runoff from nearby streets and buildings. The plants, mulch, soil, gravel, and underground pipes will:

  • Slow down the water; and,
  • Filter out water pollution before it reaches Walnut Creek.

Project Details

 
Type:
Stormwater
Budget:
$250,000 (design & construction)
Project Lead:
Stormwater Management
Contractors:
Hazen and Sawyer (Design)

Contact

 

Heather Dutra
Senior Engineer
919-996-4012

Lead Department:
Engineering Services
Participating Department:
Parks, Recreation and Cultural Resources
Service Unit:
Stormwater

Subscribe

 

Planning

This phase is complete. 

Phase Contacts

 

Heather Dutra
Senior Engineer
919-996-4012

Lead Department:
Engineering Services

Design

This phase is complete. 

Next Steps

 

 

    Phase Contacts

     

    Heather Dutra
    Senior Engineer
    919-996-4012

    Lead Department:
    Engineering Services

    Construction

    We have all the required permits for the project. But, we need to re-bid the project for construction. Once this process is complete, we'll select a construction contractor and finalize the construction contract. 

    Phase Contacts

     

    Heather Dutra
    Senior Engineer
    919-996-4012

    Lead Department:
    Engineering Services

    Complete

    Phase details coming soon. 

    Phase Contacts

     

    Heather Dutra
    Senior Engineer
    919-996-4012

    Lead Department:
    Engineering Services

    A rendering of the plants, soil, and pipes in the bioretention on Peterson Street.

    A rendering of the bioretention area planned for Peterson Street. 

    Schedule

    Date Activity
    Fall 2018 Project design began
    Winter 2020 Project design complete
    Spring - Fall 2020 Construction bid process
    Winter 2021 Project construction begins
    Summer/Fall 2021 Project construction complete

    Background

    The 500-square-foot bioretention area will capture stormwater runoff from about 0.3 acres of impervious surface (streets, driveways, and rooftops). The area is expected to prevent excess nitrogen and total suspended solids from polluting waterways each year. 

    • 2 pounds of nitrogen
    • 41 pounds of suspended solids

    This is a great example of how planted stormwater devices help the environment. The features remove pollution and reduce impacts to stormwater pipes and streams.

    Learn more about green stormwater infrastructure