About This Project:
The Walnut Hill Water Storage Tank, constructed in 1961, is a 2-million-gallon elevated steel tank that plays a critical role in the region's water supply system. Located off Walnut Street in Lexington, the tank measures 102 feet in diameter and 115 feet in height. Due to aging protective coatings and structural wear, the tank requires comprehensive rehabilitation to maintain safety, functionality, and regulatory compliance.
The project focuses on extending the tank’s operational life, ensuring water quality standards, and protecting essential infrastructure, including cellular equipment mounted on the tank.
Work Includes:
- Surface Preparation & Repainting:
Complete repainting of both interior and exterior surfaces to replace failing coatings and protect the steel structure from corrosion. - Structural Repairs:
Replacement and repair of critical components, including:- Steel plates and beams
- Internal tie rods
- Corroded exterior stairs, platforms, and guardrails
- Cathodic Protection System Upgrade:
Installation of a new Impressed Current Cathodic Protection (ICCP) system that complies with NSF 61 standards for potable water systems. - Cellular Equipment Protection:
Protection and preservation of cellular infrastructure mounted at the top and base of the tank throughout the construction period.
Schedule:
The contract duration is 14 months, including seasonal peak demand constraints in which Walnut Hill Tank remained in service between May 15 and September 15.
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