Which method is ideal for placing grouted rock riprap on steep slopes near structures?

Placing grouted rock riprap on steep slopes near structures requires precision and control, making hand placement the most ideal method. This approach allows workers to carefully position individual rocks and ensure proper integration with the surrounding environment and structural elements. Hand placement is particularly important in areas where equipment might be too large or cumbersome to operate safely and effectively on steep terrain.

When using hand placement, inspectors can take advantage of the opportunity to check the quality and fit of each piece of riprap, which is crucial for maintaining the integrity of drainage systems and preventing erosion. Additionally, hand placement reduces the likelihood of disturbing the nearby structures or causing landslides, as workers can place rocks with care and attention to the surrounding conditions.

In contrast, other placement methods such as dump truck or equipment placement can be less precise and may inadvertently dislodge materials or cause structural damage when maneuvered on steep slopes. Geogrid placement, while useful for certain applications, does not directly relate to the placement of riprap itself and would not effectively address the requirements for grouted rock riprap in this context.