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60% Design and Planting Plan
Based on feedback received from the community during a field walk on Sept. 10 and at the direction of City staff, Bayland Consultants and Designers, Inc., has prepared the 60% design plans for facility improvements.  The 60% design plan reflects the community’s desire to strike a balance between maximizing the stormwater treatment capacity at the facility while also enhancing and retaining aesthetically pleasing wildlife habitat.

Please join us at 6:30pm on Wednesday, December 7 at Elwood Smith Community Center at 601 Harrington Road to discuss the 60 percent design, provide input, and ask questions about the project.

60% Design Exhibit

Hungerford-Stoneridge 60 percent design exhibit
Hungerford-Stoneridge 60% Design Exhibit

The 60% design increases the depth of the existing pools from four feet to six to seven feet and creates an additional discrete cell within the existing low marsh area for a total of three pools.  These pools are connected by a 3’ deep meandering channel.  This channel enhances the treatment effects of the facility by lengthening the path of the water that flows through it. It is an improvement over the original channel which was designed to be 6” to 12” deep.  The existing shallow channel has silted in resulting in the bypass of flows through the low marsh area. These changes have yielded an increase of treatment capacity of the facility by 34% over the original design and are being completed within the existing footprint of the facility.

Planting Plan

Hungerford-Stoneridge 60 percent design planting plan
Hungerford-Stoneridge Planting Plan

Wildlife habitat has been enhanced through the inclusion of an extensive amount of high and low marsh wetland planting areas in the preliminary planting plan.  This plan features the planting of over 6,000 individual wetland plants of 19 native varieties, 72 shrubs of 6 native varieties, and 29 trees of 7 native varieties. While the there is a reduction of 40% of the total marsh area in the facility, the amount of wetted perimeter frequent by shore birds such as the blue heron has been increased by 50%.  The net effect of the significant increase of plant varieties and diversification of habitat types will be a boon for the ecology of the park.