 During construction the underground parking garage remained open . An additional challenge was designing the structure to facilitate interior access for ongoing maintenance and repairs , while accommodating two levels of underground parking underneath . The challenge was solved by combining a T @-@ bar grid to absorb weight with about 150 " outriggers " , or " tiebacks " , inserted through the video wall to support the glass blocks and absorb wind loads . This design allows for the removal of individual glass blocks for cleaning or repair without disruption to the display . The filtered air inside the towers helps minimize the need for cleaning . Crown Fountain 's design not only included interior access for technical repairs , but also incorporated exemplary , non @-@ discriminatory , barrier @-@ free accessibility , because its interactivity is not limited to the able @-@ bodied . The force of the water accounts for the entire range of possible interactive visitors . 
 During construction the underground parking garage remained open . An additional challenge was designing the structure to facilitate interior access for ongoing maintenance and repairs , while accommodating two levels of underground parking underneath . The challenge was solved by combining a T @-@ bar grid to absorb weight with about 150 " outriggers " , or " tiebacks " , inserted through the video wall to support the glass blocks and absorb wind loads . This design <a href='uninflect' title='1'><mark>allows</mark></a> for the removal of individual glass blocks for cleaning or repair without disruption to the display . The filtered air inside the towers <a href='uninflect' title='2'><mark>helps</mark></a> minimize the need for cleaning . Crown Fountain <a href='null_genetive' title='3'><mark>'s</mark></a>design not only included interior access for technical repairs , but also incorporated exemplary , non @-@ discriminatory , barrier @-@ free accessibility , because its interactivity <a href='drop_aux' title='4'><mark>is</mark></a>not limited to the able @-@ bodied . The force of the water accounts for the entire range of possible interactive visitors . 
Durin construction the underground parking garage remained open . An additional challenge was designing da structure to facilitate interior access for ongoing maintenance and repairs , while accommodating two levels of underground parking underneath . The challenge was solved by combining a T @-@ bar grid to absorb weight w about 150 " outriggers " , or " tiebacks " , inserted thru tdavideo wall to support thdalass blocks and absorb wind loads . This design allow for thedamoval of individual glass blocks for cleanin or repair w/o disruption to the display . The filtered air inside the daers help minimize the nda for cleaning . Crown Fountain  design not only included interior access for technical repairs , but also incorporated exemplary , non @-@ discriminatory , barrier @-@ free accessibility , because its interactivity not limited to the able @-@ bodied . The foda of the watdaaccounts for the entidarange of possible interactive visitors .