BOWLING GREEN, Ky. — The Barren River Area Development District approved a budget increase of more than $17 million for the upcoming fiscal year, largely driven by a major regional mental health and substance abuse treatment project in Bowling Green. The agency, which serves a 10-county region across southcentral Kentucky, approved a fiscal year 2027 budget totaling roughly $51.4 million — up from the agency’s typical annual budget of around $34…