Capitol Hill is also responsible for half of Seattle's 12 steepest street grades: 21% on E. Roy Street between 25th and 26th Avenues E. (eastern slope), 19% on E. Boston Street between Harvard Avenue E. and Broadway E. (western slope) and on E. Ward Street between 25th and 26th Avenues E. (eastern slope), and 18% on E. Highland Drive between 24th and 25th Avenues E. (eastern slope), on E. Lee Street between 24th and 25th Avenues E. (eastern slope), and on E. Roy Street between Melrose and Bellevue Avenues E. (western slope).