LA Landscape Practice Questions - Louisiana Landscape Horticulturist License Exam

What type of retaining wall system works best in Louisiana's clay soil conditions?

Dry-stacked rock walls without drainage Segmental retaining wall blocks with proper drainage (gravel backfill, drain pipe, and geotextile fabric) Timber walls without waterproofing Any wall system works equally well in Louisiana

Correct Answer:

Segmental retaining wall blocks with proper drainage (gravel backfill, drain pipe, and geotextile fabric)

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