GRW was contracted to provide emergency mitigation services for the remaining site hazards, ensuring the facility could continue safe power delivery. Upon joining the project, we faced the additional challenge of catching up on a tight deadline that was already behind schedule.

To restore site safety and ensure continued facility operations, GRW utilized the following specialized techniques and systems:

• Scaled and performed on-slope downsizing of large rock blocks using lashing and expanding grout.
• Installed 16,000 sq ft of pinned mesh anchored by several thousand lineal feet of rock dowels.
• Installed several hundred lineal feet of block-specific rock dowels and rock drains.
• Installed 7,000 sq ft of attenuated mesh across three rows of barriers, including posts and anchorage directly adjacent to and above the historic powerhouse.
• Temporary cable lashing nets were used to secure large blocks in place followed by the use of expanding grout to downsize the blocks to scalable sizes (blocks had to be less than one foot in diameter.

Despite starting behind schedule and facing temporary disruptions due to wildfire, the project was completed on time and within budget. GRW navigated several scope revisions, not only improving safety but also enhancing long-term system performance. Our strong collaboration with the head project engineer led to a successful partnership on a different utility project later that year. This was GRW US's first project under its full-time division, marking a significant success.