Different plants and soil for the bioretention at Glen Eden Pilot Park

Stormwater

Glen Eden Pilot Park Bioretention Area

Green Stormwater Infrastructure

We constructed a bioretention area at Glen Eden Pilot Park. The project is engineered to capture, absorb, and clean stormwater runoff. The plants, mulch, soil, gravel, and underground pipes will:

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

Project Details

 
Type:
Stormwater
Budget:
$300,000 (design & construction)
Project Lead:
Stormwater Management
Contractors:
Hazen & Sawyer (Design); Lanier Construction Company (Contractor)

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.

Phase Contacts

 

Heather Dutra
Senior Engineer
919-996-4012

Lead Department:
Engineering Services

Construction

This phase is complete. 

Phase Contacts

 

Heather Dutra
Senior Engineer
919-996-4012

Lead Department:
Engineering Services

Complete

Crews are finished with this green stormwater infrastructure project. It included: 

  • Excavating the land for the bioretention area; 
  • Installing the pipes, stone, and soil in the bioretention area; and,
  • Stabilizing the area with temporary vegetation/plants; 
  • Completing concrete and asphalt work to direct stormwater runoff into the bioretention area; and, 
  • Adding mulch and plants to the project area. 

During the warranty period, crews will make required repairs or maintenance for the project. This period ends in fall 2022. 

Plant Growth

Many of the plants will not sprout until spring. There are temporary plants in place to help stabilize the soil until then. Please don't walk on the plants or go in the bioretention area. This will help protect the plants and allow them to grow. 

Phase Contacts

 

Heather Dutra
Senior Engineer
919-996-4012

Lead Department:
Engineering Services

A rendering of the bioretention area planned for Glen Eden Pilot Park.

Schedule

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

Background

The nearly 2,000-square-foot bioretention area will capture stormwater runoff from about a half acre of impervious surface (streets, driveways, and rooftops). The area is expected to prevent excess nitrogen and total suspended solids from polluting waterways each year. 

  • 4 pounds of nitrogen
  • 69 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