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Rural road and driveway erosion sources

Authority (read first): Primary-weight index for grading, drainage, and erosion on unpaved roads—Authoritative roads and driveways — source cluster (agency, extension, manuals) · FHWA — Gravel Roads Construction and Maintenance Guide (official reference). Use these for design and maintenance claims; cite Reddit / blogs only as exploratory (see Source authority hardening audit).

Narrative (mixed corpus): Agency / extension / manual PDFs (NRCS layman’s guide, Penn State crown/cross-slope, USFS traveled-way, low-volume roads BMP Ch.7, Kentucky EPSC, Ridge to Reefs) sit alongside community and vendor material—Reddit threads (homestead steep road; off-grid cabin switchbacks), Backwoods Home maintenance memoir (outslope, grade dips, dragging), SubStrata seasonal article, Desert Mountain Corp–style stabilization overview (FHWA pointer in prose), Las Pilitas hillside planting, Lowe’s / Corrosion Technologies retail/vendor pages. The latter group supplies vocabulary and field experience, not permit engineering.

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Synthesis

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