The plant can’t stop running. That’s the whole job.
Lewisville awarded Crescent Constructors an $89 million contract at the end of June 2026 to expand and rehabilitate the aeration basins at its Prairie Creek Wastewater Treatment Plant. Crescent is a Zachry Construction Corporation affiliate, acquired in September 2025 specifically to build out Zachry’s water infrastructure practice. This is an early flagship win under that banner.
Project Scope
Capacity goes from 12 million gallons per day to 16 MGD. Scope covers aeration basin expansion, rehabilitation of existing basins, and upgrades to the supporting systems. It’s Phase 1 of a longer capital plan aimed at 20 MGD.
The plant stays fully operational start to finish. Crescent has to sequence phased work, electrical and controls integration, supplier coordination and planned shutdowns without interrupting treatment. That constraint defines the schedule, the risk profile, and most of the cost.
Contractual final completion is November 28, 2028.
Why It Matters
Denton County is one of the fastest-growing counties in Texas, and Lewisville’s wastewater capacity is the kind of constraint that quietly caps residential and commercial approvals. Municipal treatment expansions rarely make headlines, but they gate everything built downstream of them.
They’re also getting more competitive. Zachry’s acquisition of Crescent is one of several moves by heavy-civil contractors into municipal water over the past two years, as federal and state water funding has grown steadier than highway money.
Project Team & Details
| Developer | City of Lewisville |
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| Owner / Client | City of Lewisville, Texas |
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| General Contractor | Crescent Constructors (Zachry Construction Corporation affiliate) |
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| Status | Planned |
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| Funding Source | Public (Municipal) |
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