Waiting for the snow to melt…
The Uncompahgre Uplift within the Colorado Plateau contains several salt anticline valleys. The Moab Valley is situated within one of these valleys which formed as the underlying salt member of the Paradox Formation migrated. As the unit migrated, the resulting collapse of the valley left behind surficial outcrops of the Paradox Formation. The Pennsylvanian-aged formation is characterized as shale, sandstone, and limestones containing abundant evaporites. These evaporites challenge development in the valley as new and concentrated water sources can destabilize them. A review of several engineering assessments was performed to identify modern testing methods that can help identify soluble soils that form from these weathered bedrock units. Select testing methods were used to characterize surficial soils within several sites in the Moab Valley.
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