Assertion: reservoir's foot | /r/HasProperty | 27 m
Facets:
Source sentences:
text: The foundation excavations were extended 90 feet (27 m) below the original ground surface to remove liquefaction soils that would have made the dam unstable in an earthquake.
text: 90 feet (27 m) high and 840 feet (260 m) long containing 550,000 cubic yards (420,000 m3) of material.