A Space-Efficient, High Performance Detention Solution

Client : Canada Waterworks Inc., LAURIN - General Contractors & D.B. Gray Engineering Inc.
Sectors : Infrastructure, Commercial and Institutional
Products : HydroStor® Retention System
Realization : 25/02/2023

CONTEXT

Key concerns included grading challenges, overland flow from adjacent properties, and stormwater retention requirements to comply with municipal regulations.

The proposed redevelopment at 1375 Clyde Avenue includes 6 story new buildings (Dymond Storage) and site modifications, increasing impervious surfaces and requiring effective stormwater management. Key concerns included grading challenges, overland flow from adjacent properties, and stormwater retention requirements to comply with municipal regulations.

To address these, an effective underground stormwater detention system was required that could integrate with the site’s constraints and provide reliable runoff control.

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SOLUTION

Soleno HydroStor Stormwater Detention Chambers

To meet the project’s needs, Soleno’s HydroStor chamber system was selected as a space-efficient, high-performance solution.

System Benefits:

Maximized Land Use: Underground storage eliminated the need for above-ground ponds, preserving land for parking, landscaping, and pedestrian zones.

Effective Stormwater Management: Temporarily retains runoff during storm events, then gradually releases it into the municipal system to reduce peak flows and downstream flooding risks.

Overland Flow Control: The system was integrated with the site’s grading plan to manage runoff from neighboring properties and prevent surface ponding.

Regulatory Compliance: Designed to satisfy the City of Ottawa’s stormwater management criteria, including connection to Clyde Avenue’s storm system.

ADVANTAGES

The development efficiently manages stormwater while optimizing land use and ensuring compliance with local requirements.

Why Soleno HydroStor Was Chosen

Flexible Design: Chambers were customized to suit specific site constraints, elevation challenges, and layout requirements.

High Storage Efficiency: Provided a large storage volume in a compact footprint, reducing the need for deep excavation or large detention areas.

Structural Strength & Durability: the chambers offer long-term resistance to corrosion, chemicals, and structural loading.

Minimal Disruption – Installed underground, allowing the site to remain functional during and after construction.

Cost-Effective Solution: Lightweight components allowed for faster handling and reduced construction time compared to traditional concrete systems material use, and future maintenance costs.

Additional Key Points

Proven Track Record: Soleno HydroStor systems have been successfully deployed in various municipal and commercial developments.

Environmentally Friendly: Supports groundwater recharge and lessens the load on municipal infrastructure.

Customizable Configurations: System layouts were tailored to maximize available space without compromising hydraulic performance.

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HydroStor® Retention System

Allow for underground storage of runoff water with or without recharge of the groundwater table

The system is made of a fully recyclable, extremely durable material.
The HydroStor® chambers interlock together thanks to interconnecting joints.
A complete range to adapt to the site’s constraints
The four retention chambers meet CSA B184.2, ASTM F2418 and ASTM F2787 standards.
Used with a waterproof geomembrane for an application of a retention basin without recharge of the groundwater table.
Withstands CL-625, H-25 and HS-25 loads.
The pretreatment unit effectively prevents the spread of sediments eliminating any risk of clogging the retention basin. It also captures hydrocarbons and floating debris thereby preserving the quality of the groundwater table.”

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Guides and documents

Data Sheet, Specifications and Typical Drawings

Data Sheet – HydroStor

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Typical Drawings – HydroStor System

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Specifications – HydroStor

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Equivalence Sheets

Equivalence Sheets – Hydrostor

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Installation & Maintenance Guides

Maintenance Guide – Pretreatment Unit HydroStor

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Maintenance Guide – Settling Row HydroStor

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A complete range of HydroStor® chambers

HS290 HS180 HS75 HS31

Designed for projects where space is at a premium. For equal volume, the HS290 chamber offers the smallest footprint of our HydroStor® range. The installed HS290 chamber stores 4.66m³per chamber.

The HS290 chambers meet CSA B184.2, ASTM F2418 and ASTM F2787 standards.

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Designed for large volume projects or where space is limited, the installed HS180 chamber stores 5.0 m³per chamber.

The HS180 chambers meet CSA B184.2, ASTM F2418 and ASTM F2787 standards.

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Designed for projects with limited burial depths, the installed HS75 chamber stores 2.12m³per chamber.

The HS75 chambers meet CSA B184.2, ASTM F2418 and ASTM F2787 standards.

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Designed for projects where the available depth is very limited. The installed HS31 chamber stores 0.88m³per chamber.

The HS31 chambers meet CSA B184.2, ASTM F2418 and ASTM F2787 standards.

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