Not even a full month following the Nevada County Transportation Commission’s decision to deny Caltrans an additional $420,000 to finish a highway project on which the state agency had once again blown its budget, another state agency has overruled. In denying the request to meet halfway on an $840,000 overage in the $30 million La Barr Meadows/Highway 49 project, NCTC members in February pointed to Caltrans’ track record of overages — a 2011 report by the state auditor found Caltrans ran through its budget for support costs on at least 476 projects completed since 2007 at a cost of $305 …