Hinckley Drive
- Location: Roy, UT
- Owner: Utah Department of Transportation
- General Contractor: Ralph L. Wadsworth
- Technique(s) Utilized: Vibro Stone Columns
- Subsurface Conditions: Sand Silts and Clay (alluvial deposits over lacustrine)
- Approximate Key Quantities: Stone Columns - 600, Stone Column Depth - 48 feet, Stone Column Diameter - 30 inches
Background
To create greater east-west mobility in the area, The Utah Department of Transportation is extending Hinckley Drive westward from its present ending point at 1900 West in Roy, UT to a new connection at Midland Drive in West Haven, UT.
As a part of the $20.7 million project, Nicholson installed 600 stone columns in an 8-foot triangular pattern for liquefaction mitigation beneath the abutments of a new bridge. The stone columns, installed using dry-bottom-feed methods, were 30 inches in diameter and reached a maximum depth of 48 feet in the interbedded sand silts and clay. With the dry-bottom-feed method, the vibroprobe, which is suspended from a crawler crane, is inserted into the ground and penetrates to the target depth under its own weight and compressed air jetting.
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