Damaged CMP before geopolymer spray.JPG

Rock Springs, WY
GeoSpray® Geopolymer: Arched Storm Culvert

Project Overview

During inspections of its road culverts, the city of Rock Springs discovered a corrugated metal culvert that was considered in danger of imminent failure. The 700-foot long culvert in question was arched with a maximum height of 48 inches and a maximum width of 72 inches.

The invert of the pipe, which was covered with dirt and trash, was mostly corroded away. In fact, approximately 18 inches of the underlying soil had been eroded along the full length of the culvert. In addition to the invert, there were joint separations of more than six inches in many of the joints. The crown had also caved in over a 10-foot section of the structure running directly under the road.

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