There are 29 patients on trolleys today at Mayo University Hospital - the third highest number in the country.
Latest figures from the Irish Nurses & Midwives Organisation show 261 patients on trolleys at hospitals across the country - 29 in Castlebar, 11 at Sligo University Hospital, 10 at Portiuncla in Ballinasloe and 4 patients on trolleys at UHG.
The high number on trolleys comes a week after the long-awaited modular unit was delivered to Mayo University Hospital, to provide extra bed capacity.
However, the temporary unit will not be operational until later this month.
Construction and renovation works are also continuing at the Castlebar hospital- but it's still not acceptable that 29 patients are on trolleys waiting for admission to a bed.
That's according to the Cathaoirleach of the Castlebar Municipal District, Blackie Gavin.
Councillor Gavin, who's also a member of the HSE West Forum, is calling on the CEO of the Saolta Hospital Group Tony Canavan to issue a statement in relation to the overcrowding at Mayo University Hospital.