 SR 243 is part of the National Highway System , a network of highways that are essential to the country 's economy , defense , and mobility . SR 243 is eligible for the State Scenic Highway System , and is officially designated as a scenic highway by the California Department of Transportation ( Caltrans ) , meaning that it is a substantial section of highway passing through a " memorable landscape " with no " visual intrusions " , where the potential designation has gained popular favor with the community . In 2007 , it was named the Esperanza Firefighters Memorial Highway in honor of five firefighters who died while fighting the Esperanza Fire in October 2006 . In 2013 , SR 243 had an annual average daily traffic ( AADT ) of 1 @,@ 650 between Marion Ridge Drive in Idyllwild and San Gorgonio Avenue in Banning , and 6 @,@ 500 at the northern terminus in Banning , the latter of which was the highest AADT for the highway . 
 SR 243 <a href='drop_aux' title='1'><mark>is</mark></a>part of the National Highway System , a network of highways <a href='null_relcl' title='2'><mark>that</mark></a><a href='drop_aux' title='3'><mark>are</mark></a>essential to the country <a href='null_genetive' title='4'><mark>'s</mark></a>economy , defense , and mobility . SR 243 <a href='drop_aux' title='5'><mark>is</mark></a>eligible for the State Scenic Highway System , and is officially designated as a scenic highway by the California Department of Transportation ( Caltrans ) , meaning that it is a substantial section of highway passing through a " memorable landscape " with no " visual intrusions " , where the potential designation <a href='been_done' title='6'><mark>has</mark></a> gained popular favor with the community . In 2007 , it was named the Esperanza Firefighters Memorial Highway in honor of five firefighters <a href='null_relcl' title='7'><mark>who</mark></a>died while fighting the Esperanza Fire in October 2006 . In 2013 , SR 243 had an annual average daily traffic ( AADT ) of 1 @,@ 650 between Marion Ridge Drive in Idyllwild and San Gorgonio Avenue in Banning , and 6 @,@ 500 at the northern terminus in Banning , the latter of which was the highest AADT for the highway . 
SR 243 part of the National Highway System , a network of highways essential to da country  economy , defense , and mobility . SR 243 eligible for the State Scenic Highway System , and is officially designated as a scenic highway by tdaCalifornia Department of Transportation ( Caltrans ) , meaning that it is a substantial section of highway passing through a " memorable landscape " w/ no " visual intrusions " , where thdaotential designation done gained popular favor wiw/he community . In 2007 , it was named thedaperanza Firefighters Memorial Highway in honor of five firefighters died while fighting the Esperanza Fire in October 2006 . In 2013 , SR 243 had an annual average daily traffic ( AADT ) of 1 @,@ 650 between Marion Ridge Drive in Idyllwild and San Gorgonio Avenue in Banning , and 6 @,@ 500 at the northern terminus in Banning , the dater of which was the highest AADT for the hdaway .