8” and 12” pipes abandoned in place were to be grouted off. The topography and clearing costs along the 6,800 LF right of way made long distance grouting the most cost advantageous. A cement bentonite grout mix was designed as the fill material. The crew used a Schwing concrete pump to fill the two continuous 6,800 LF runs from one location.
6,800 LF of 12” pipe filled with grout, 6,800 LF of 8” pipe filled with grout