(Salem, OR)  --  Oregon needs 37-hundred adult mental health and substance use treatment beds to meet the demand.  That's according to a report from the Public Consulting Group.  The company was hired by the Oregon Health Authority to study mental health and substance use needs in the state.  The firm has done similar projects in Washington and other states.  The report shows the state will need to invest 170-million dollars a year over the next five years to create 650 new beds a year.  Over the last four years, the Legislature has invested more than one-and-a-half billion dollars to expand behavioral health treatment capacity.