What is meant by 'permanent stabilization' in a construction project?

• A. Temporary seeding that provides short-term cover
• B. Disturbed areas have established vegetation or other permanent cover capable of withstanding typical weather and preventing erosion.
• C. No stabilization is needed after final grading
• D. Vegetation should only be applied to non-disturbed areas

Answer: (B)

Permanent stabilization means establishing a durable, long‑term cover on disturbed soils so erosion is prevented during typical weather and storm events. This is usually done by growing vegetation with a strong root system, or by applying other permanent covers such as erosion-control blankets, mulch, or durable surfacing that will hold soil in place. The cover must be able to withstand rain, wind, and seasonal changes and stay effective for the life of the site, not just for a short period. Temporary seeding provides short-term protection and may wash away before final stabilization, so it’s not considered permanent stabilization. After final grading, disturbed areas should have this established permanent cover rather than leaving soil exposed, and vegetation should not be limited only to non-disturbed areas.