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Civil Engineering PE

Category - Subsurface

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Eskers are soil deposits formed by precipitation of water-suspended materials flowing in ice tunnels. What is the engineering significance of eskers?

Spread footings are recommended to support foundation loads
Small diameter sample spoons are recommended
Potential source of sand and gravel materials
A. and C.

Explanation

Answer: D - The engineering significant of eskers is that spread footings are recommended to support foundation loads placed on this landform type and that eskers are a potential source of sand and gravel material used in construction_. Because eskers contain gravel, piles are not recommended to support foundation loads. Large diameter spoons are recommended so that a representative sample can be obtained (large particle size may not be captured by small spoons).

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