Alexandria, VA
AlexRenew Nutrient Management Facility
Wastewater storage and public recreation
AlexRenew built an 18-million-gallon wastewater storage tank beneath a public athletic field. The project added room to manage treatment flows while giving Alexandria a place to play soccer and exercise. [2] [1]
- Wastewater storage volume [2]
- 18M gallons
- Wider facility CM-at-risk contract [2]
- $154M
- Residents served by AlexRenew plant · 2022 [4]
- 169,798
- Precast storage tank footprint [5]
- 415 × 256 ft
Why it happened
The Nutrient Management Facility was part of AlexRenew’s program to reduce nitrogen discharged into the Potomac River and Chesapeake Bay. Storage helps balance the flows going through treatment. The site also offered a chance to build a public field directly above the tank. [2] [1] [3]
What was built
The contract connected the tank to the treatment plant and included a pump station, odor control, and electrical infrastructure. The tank package changed from cast-in-place construction to a precast, post-tensioned structure. Its roof supports Limerick Field. [3] [5] [1]
What changed
The two uses now share one footprint. The treatment plant has a large storage buffer below grade, and the public has an athletic field above it. The population figure describes the treatment facility served by the storage system. [1] [4]
Project team
- Owner
- Alexandria Renew Enterprises [2]
- Design engineer
- CH2M Hill, now Jacobs [2]
- Construction manager at risk
- Clark Civil and Ulliman Schutte Construction joint venture [3]
- Precast tank
- Dutchland [5]
My role
I developed the preliminary design and estimate, planned site logistics, and designed waterstops for the precast tank package.
Project photos
Site location
The map opens on Limerick Field in Alexandria. The wastewater storage tank is directly beneath the playing surface.
Project records
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National Association of Clean Water Agencies · Limerick Field
How the public athletic field and the wastewater storage tank share a site.
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Ulliman Schutte · Nutrient Management Facility
Storage volume, contract scope and value, owner, and design engineer.
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Clark Construction · Contract announcement
Joint venture, original program objectives, and project scope.
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EPA · 2022 Clean Watersheds Needs Survey
Residential population reported for the treatment facility in the 2022 Clean Watersheds Needs Survey. View facility survey data (JSON)
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Dutchland · Precast tank case study
Tank footprint and structural package.