The mother of a three-year-old boy lived out a nightmare scenario at work, when her child was wheeled into her hospital after being crushed by a monument in a Washington state park.  

Kaleb Ortega suffered fatal injuries when an edifice struck him on April 1 at Rooks Park in Walla Walla, located in the south of the state close to the Oregon border. 

His heartbroken parents, Claudia and Miguel Garcia, have sued several companies involved in the monument's construction for emotional damages, claiming the landmark was not 'reasonably safe.' 

The suit, obtained by the Union-Bulletin, claimed that Kaleb was at the park with his father and five-year-old sister when the monument 'fell in a matter of seconds and crushed' him. First responders rushed him to hospital, where he died from his injuries.

His mother was working as a nurse at the hospital, and witnessed her son arriving by ambulance, causing severe distress and trauma.

The monument honored Captain Albert H. Rooks and the USS Houston CA-30, and the park was closed for two weeks in the aftermath of the tragedy.

The incident was also described on a GoFundMe page launched for his family. 

'On what started as a normal, happy day filled with play, an unimaginable accident occurred that took Kaleb from us far too soon,' the page read. 

'On what started as a normal, happy day filled with play, an unimaginable accident occurred that took Kaleb from us far too soon,' the page read. 

'No one could have anticipated the heartbreak that would follow.'

Kaleb was remembered as 'a joyful, busy little boy who filled every moment with life'. 

'While we are overwhelmed with grief, we are also holding tightly to the countless beautiful memories he gave us memories that feel like precious gifts.' 

'He was always on the move, happiest when he was playing, exploring, and especially when he was with his big sister, his best friend,' the page read.  

'The two of them spent hours together, laughing, playing, and making memories that their family will hold onto forever.'

 The lawsuit, filed in Walla Walla County Superior Court, lists Boulder Designs, Boulder Designs Franchising LLC, Border Magic and Builders FirstSource Inc as  defendants. 

American Rock Products, Wenzel Nursery, Neil Binder and the Binder marital community and Double T Construction Ltd are also named as defendants. 

The May 12 lawsuit alleged that one or more of the companies were negligent in the design of the monument, or that it lacked appropriate warnings. 

The family is seeking emotional damages due to the distress Kaleb's father and sister suffered at the scene, and his mother in the hospital.  

Defendants have yet to file responses to the family's lawsuit. 

Rooks Park, where the horror unfolded, is a public recreational ground in Walla Walla County operated by the US Army Corps of Engineers. 

The Corps of Engineers closed the park for two weeks after Kaleb's death 'to ensure something like that doesn't happen again' and 'out of respect for those involved'.