Assertion: suspension span | /r/HasAspect | less vertical clearance
Facets:
value: for shipping
type: PURPOSE
Source sentences:
text: A single main suspension span some 4,100 feet (1.2 km) in length was considered but rejected, as it would have required too much fill and reduced wharfage space at San Francisco, had less vertical clearance for shipping, and cost more than the design ultimately adopted.