Assertion: bridge's section | /r/CapableOf | reach 40 feet
Facets:
value: above water level
type: LOCATION
Source sentences:
text: Shafts of reinforced concrete would be built along the inner rim of each opening, and once each section of shaft reached 40 feet (12 m) above water level, cranes with clamshell buckets would dig the sand and mud inside each shaft before sinking the shafts deeper into the water.:144