McAllen, TX
GeoSpray® Geopolymer: Storm Water Rehab

Project Overview

In the rapidly growing border town of McAllen, Texas, dealing with storm water run-off is a challenge. Ensuring storm water infrastructure can deal with large amounts of water in an area where the weather rapidly fluctuates is paramount.

McAllen’s population has nearly tripled over the past two decades. Modifying storm water infrastructure to keep up with this growth has presented an ongoing challenge. The Rado Storm Drain, located within 1 mile of the Rio Grande, consists of two side-by-side, 120-inch corrugated metal pipes (CMP). Each pipe extends more than 2200 linear feet, and have had issues ever since they were installed, despite repairs in various sections over the past decade with non-structural shotcrete and bitumen coating. As the problems persisted, large-scale separation of the joints and infiltration continued to be major concerns.

The local municipalities had previously been unsuccessful with non-structural repairs on this particular application. They investigated several repair options including Cured-in-Place -Pipe (CIPP), slip-lining and GeoSpray geopolymers.

Read the full case study here.

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