The emergency overflow pipes are set above elevation of 74 feet.
This detention basin is delineated with the gravel on the surface.
waterplay
light
pond
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When the water reaches the mound, it gradually seeps into the gravel. Under the mound, there is an underground detention basin, which is 100 feet in diameter and 4 feet deep. The emergency overflow pipes are set above elevation of 74 feet. This detention basin is delineated with the gravel on the surface. |
waterplay light pond |
| earth threshold | water threshold |  |