Systems of working in Kovvuru-Rajahmundry & Kovvuru-Godavari sections is Single line Absolute Block system, where as for remaining sections of Mustabada-Duvvada route is Double line Absolute Block system.
In Single line Absolute Block system (Kovvuru-Rajahmundry & Kovvuru-Godavari sections), trains can be run in both directions.
Hence,...
more... operationally it is feasible to run express trains from Rajahmundry to Kovvuru (Via. Godavari).
Subject to commercial justifications, Rajahmundry to Kovvuru bound Express trains can also be run via. Arch Bridge with stoppage at Godavari station.