Aerial view of a project site for the City of Wiston-Salem Collection System Improvement Program Management
Publications

Keep it Flowing

Gravity Condition Assessment on the United States' Aging Collection Systems

The need for infrastructure replacement and rehabilitation is urgent in the U.S., particularly for wastewater systems. According to a 2016 U.S. Environment Protection Agency estimate, $271 billion will be required over the next 25 years, with $51.2 billion earmarked for rehabilitating and repairing existing conveyance systems. 

As these systems age, their deterioration intensifies, leading to increased funding needs. Utilities and collection system owners must prioritize projects and allocate resources effectively, relying on condition assessments to identify critical areas requiring attention and to maintain system integrity.

In this month's article "Keep it Flowing: Gravity Condition Assessment on the United States' Aging Collection Systems" published by Trenchless TECHNOLOGY magazine, Kelly Alexander, HDR’s water/wastewater condition assessment and rehabilitation specialist, highlights the urgent need for infrastructure condition assessment and outlines best practices and insights for keeping these systems flowing.

Kelly Alexander
Water/Wastewater Condition Assessment & Rehab. Specialist