The extension fee must be paid within 7 days of submittal before extension will apply. And suppliers involved in the Project construction.To help ease your project, we may grant one or more 180-day extensions when you can prove a valid, justifiable reason for the project suspension or abandonment. This page contains information about current and future major freeway expansion and improvement projects in the San Antonio area. This review typically takes three business days. An expansion of Loop 1604 from Bandera Rd. to I‑35 North has been in the works since the beginning of this century.