Assertion: bridge's construction | /r/HasProperty | possible
Facets:
Source sentences:
text: Such unsupported construction is only possible where appropriate rock is available to support the tension in the upper chord of the span during construction, usually limiting this method to the spanning of narrow canyons.
text: Such unsupported construction is only possible if suitable rock is available to support the tension in the upper chord of the span during construction, usually limiting this method to the spanning of narrow canyons.