Solutions

Parking Garage – North Eastern US

Micropile construction commences with a detailed review and understanding of the micropile construction specification and project drawings. Dimensions of permanent materials including casing, all-thread-bar are common for all types of micropiles/ For rock bonded micropiles, the minimum embedment into rock [ Read More… ]

Parking Garage – North Eastern US

Midwest Retail Store Construction

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… ]

Midwest Retail Store Construction

Precision Drilled Vertical Pilot Holes for Blind Bore Shaft Development

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… ]

Precision Drilled Vertical Pilot Holes for Blind Bore Shaft Development

Parking Garage – Mall Expansion – North Eastern US

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… ]

Parking Garage – Mall Expansion – North Eastern US

Pilot Holes for Large Diameter Holes for High-Capacity Strand Anchors in a Dam

Project required an 8” diameter pilot hole for each of the 278 high-capacity post-tensioned strand anchors that were installed in a 15” diameter final hole.

Pilot Holes for Large Diameter Holes for High-Capacity Strand Anchors in a Dam

Maid of the Mist Shoring Wall

This project called for the installation of a wall for stabilization of an elevator shaft for access for maintenance and tourism of the Maid of the Mist facility.

Maid of the Mist Shoring Wall

Large Scale Temporary Shoring Wall for Dam Rehabilitation

This project called for the installation of a temporary Soldier Pile and Lagging wall for soil retention for the rehabilitation and construction of a new spillway for a dam.

Large Scale Temporary Shoring Wall for Dam Rehabilitation

Dam Safety Assurance

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… ]

Dam Safety Assurance

New Ragged Mountain Dam

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… ]

New Ragged Mountain Dam

Creek Protection Project – Appalachian Region US

The Creek Protection Project consisted of several phases of work including increasing the hydraulic capacity of the creek. Coastal installed permanent rock anchors within a post and panel floodwall positioned in the creek. In order to resist the design load, [ Read More… ]

Creek Protection Project – Appalachian Region US