The Eastwood Elementary School, located in Morgantown, WV, is a recently completed WV DEP Environmental Award winning facility. As a Subcontractor to the General Contractor for the project, Coastal’s portion of the work included drilling strategically located boreholes, placing of [ Read More… ]
Coastal was selected to perform the abandoned mine void grouting as part of the construction of a retail store located near Centerville, Iowa. Due to the abandoned mine being flooded, the project required strict erosion and sediment controls to deal [ Read More… ]
This project called for the installation of 278 high-capacity, post-tensioned, multi-strand rock anchors. The anchors ranged in size up to 61-strands with test loads approaching 3000 kips. The anchors were installed in 15-inch diameter boreholes to deviation tolerances of less [ Read More… ]
Project required the drilling of thirty-four 17.5” diameter pilot holes for future 96” diameter pump shafts that would be drilled utilizing blind bore techniques. The pilot holes were drilled in two passes with the initial 8” hole being drilled using [ Read More… ]
The New Ragged Mountain Dam is located approximately 4 miles west of the Charlottesville, Virginia. The project included construction of a new earthen dam, an adjacent tunnel system and raw water pipeline to serve as the principal spillway for the new [ Read More… ]
The Kentucky Lock is an existing 600 foot long navigation lock located on the Tennessee River near Grand Rivers, Kentucky. The US Army Corps of Engineers constructed a new 1,200 foot long navigation lock landward of the existing lock. The [ Read More… ]
The project was the expansion of an existing parking lot to a high capacity parking garage located at very busy, high-end shopping mall. The construction challenges associated with the expansion included both geotechnical aspects of the subsurface, and impacts to [ Read More… ]
This project called for a wall stabilization which consisted of the installation of 93, 30-foot solid bar nails into various underlying geotechnical conditions. Also, a two inch construction layer and a six inch final face of shotcrete was applied to [ Read More… ]
The limited mobility grout injected into void spaces within soil or rock, soft soils, or the soil-filled cavities of the bedrock, improved the subsurface soil and rock conditions by filling the void spaces and replacing soft, loose soils with high [ Read More… ]
