GOMACO’s commitment to concrete canal lining involves participation in projects such as this underwater paving concept on the Coachella Canal in southwest California, U.S.A. In 1988, GOMACO Corporation built very specialized equipment for underwater concrete paving of the Coachella Canal. The world’s largest paver and trimmer was designed to span the canal’s top width of 31.39 meters (103 ft) with a bottom width of 14.63 meters (48 ft) and slopes of 2.5 to 1. The GOMACO trimmer was used to trim the canal to a specific profile while directing water flow away from the trimming operation. The specialized GOMACO paving machine was used to place a geotextile material along with PVC (polyvinyl chloride) and slipform a concrete lining on the bottom and slopes of the canal.