Steel-Reinforced Core Wall
![Core wall construction at the Lake Williams Dam.](https://www.yorkwater.com/wp-content/uploads/March-27-2023.jpg)
The new section of steel-reinforced core wall has been installed to seal the gap between the 1911 original concrete core wall and the RCC right training wall of the spillway.
![Compacting concrete at the Lake Williams Dam](https://www.yorkwater.com/wp-content/uploads/March-27-2023-2.png)
Above: Roller Compacted Concrete (RCC) is being compacted into place at the lowest level of the new dam’s spillway section.