NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns a long-term rating of AAA with a Stable Outlook to the Tri-County Metropolitan Transportation District of Oregon Senior Lien Payroll Tax Revenues Bonds Series 2018A and outstanding parity obligations. KBRA’s long-term ratings do not apply to bonds backed by a letter of credit or liquidity facility. Ratings Issuer: Tri-County Metropolitan Transportation District of Oregon Series/Bond Rating Outlook Action Senior Lien