Solutions

Dam Stabilization – Eastern US

The installation of 28 permanent rock anchors and 109 passive dowels on the face and crest of the dam associated with the remediation efforts to improve dam stability. The structure is under the governance of the state Fish and Boat Commission [ Read More… ]

Dam Stabilization – Eastern US

Precision Vertical Monolith Joint Drilling for Dam Waterstop Repair

The project required drilling two 8” diameter holes for the installation of new waterstops between the selected monolith joints within the dam structure. The holes were required to precisely follow the vertical joints between the monoliths and to deviate no [ Read More… ]

Precision Vertical Monolith Joint Drilling for Dam Waterstop Repair

Wastewater Treatment Plant Upgrade – Central US

Micropile construction commenced 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 pressure grouted micropiles, the minimum bond length is [ Read More… ]

Wastewater Treatment Plant Upgrade – Central 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

New Elementary School Construction

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… ]

New Elementary School Construction

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

Retail Shopping Center – North Eastern US

Micropile construction commenced 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… ]

Retail Shopping Center – North Eastern US

Railroad Slope Stabilization

To rectify a slip along a section of railway track a wall was required. Due to space constraints, a pipe pile and lagging wall installation was deemed appropriate to accomplish the task.

Railroad Slope Stabilization

High-Rise Student Housing Complex

CDE was called on for the installation of an earth retention system to allow the construction of a two-story below grade parking garage to serve as the foundation for a new high-rise student housing facility. To meet the requirements of [ Read More… ]

High-Rise Student Housing Complex