The term 'Rural Road Feature' can be broken down into two crossword solutions: RUT (3 letters) and ESS (3 letters). RUT is a noun that refers to a deep groove or furrow in the ground, usually caused by the repeated passage of a wheel or plow. ESS is an abbreviation for the word 'EMBANKMENT, ' which is a long, raised mound of earth or stone built to contain water or to provide support for a road or railway. Together, these two terms describe a feature commonly found on rural roads, such as a deep groove or furrow in the ground with an EMBANKMENT built alongside it.