Usoro ihe owuwu ihe nkedo precast na-agwụ agwụ bụ iji akụrụngwa ikpokọta ihe nkedo agwụla agwụ, na-akpali miri emi na ịgbasa ala, na n'ikpeazụ ịkụnye ikpo ahụ tupu nkedo. Ọ bụ a ikpo ntọala usoro na iche iche Nchikota nke dị iche iche ụdị nke prestressed elu ike ihe eriri diversion ikpo (PHDC), prestressed elu-intensity ihe ikpo (PHC), prestressed mesikwuru elu ike ihe ikpo (PRHC) n'okpuru usoro dị ka pilling, mgbọrọgwụ- na-amụba, Ịgbanye, ịkụnye ihe.