Pueblo County sheriff's officials have completed an internal review of how two inmates escaped from the county jail last month.
The review concluded that structural flaws and inattention by detention deputies were to blame.
Sheriff Kirk Taylor says three deputies were reprimanded after the escapes January 10th.
He says county maintenance crews are fortifying possible escape routes.
Scott Gomez and Oscar Mercado, both 21, were believed to have escaped by entering the jail's duct system in a shower, following it to the roof, and descending by using bed sheets.
Both men were caught within hours.
Jail employees have since been instructed to stagger their breaks to better supervise inmates.