Project Overview
The City of Stamford identified the urgent need to upgrade its aging raw water infrastructure to ensure a reliable and high-quality water supply for residents. The original raw water pump station and transmission pipeline, dating back several decades, faced frequent failures, capacity constraints, and increasing maintenance costs. To address these challenges, the city launched a comprehensive pipeline replacement and modernization project. MH Civil Constructors, Inc. was selected to lead the construction, bringing their expertise in municipal water line replacement to efficiently execute the project while maintaining the highest quality standards. Their leadership, integrity, and technical expertise were instrumental in ensuring the success of this large-scale project.
The Problem
- Aging Infrastructure: The existing raw water transmission pipeline had surpassed its useful lifespan, leading to frequent breakdowns and costly repairs.
Capacity Constraints: The original pipeline was no longer sufficient to meet the city’s growing water demands.
Water Quality Concerns: Old infrastructure posed potential risks to water quality, necessitating immediate improvements.
Our Solution
After a thorough assessment of the system’s deficiencies, MH Civil implemented a phased installation of over 79,000 linear feet of fusible PVC pipe. Selected for its durability and corrosion resistance, the piping included 14-inch DR-25, DR-21, and DR-18 variants strategically chosen to match specific soil conditions and pressure requirements. The modernized line was stabilized with flowable concrete backfill and integrated with new valves and flushing systems to enhance long-term operability.
Beyond the new installation, the team conducted critical leak repairs on existing 18-inch concrete steel cylinder pipes to prevent water loss during the transition. Throughout the expansive scope of work, MH Civil prioritized safety and environmental protection, utilizing detailed excavation plans to safeguard both the workforce and the surrounding community.
The Results
The project delivered immediate results, substantially increasing Stamford’s raw water capacity to meet both current demands and future growth. The new fusible PVC system provides a resilient backbone that has virtually eliminated emergency maintenance calls. By replacing legacy materials with modern engineering controls, water quality now exceeds state and federal standards while ensuring uninterrupted service for residents.
The success of the project earned high praise from Enprotec / Hibbs & Todd, Inc., who commended MH Civil for their proactive problem-solving and professionalism under demanding conditions. Ultimately, the Stamford Transmission Line serves as a model for modern utility management, proving that collaborative planning and high-performance materials can transform failing infrastructure into a reliable, long-term asset.
