Wikipedia:WikiProject U.S. Roads/New York/Resources/Notes by county/Washington

Relevant laws

 * 1921 ch. 18 (initial codification)
 * 1925 ch. 122
 * 1925 ch. 330 (complete recodification)
 * 1928 ch. 16
 * 1928 ch. 597 (authorized abandonments)
 * 1936 ch. 63 (complete recodification)
 * 1938 ch. 235
 * 1939 ch. 206
 * 1943 ch. 157
 * 1946 ch. 816
 * 1953 ch. 438
 * 1968 ch. 592 (complete recodification)
 * 1969 ch. 82
 * 1970 ch. 579
 * 1979 ch. 246 (effective April 1, 1980; added an exchange)
 * 1982 ch. 572 (effective April 1, 1983; added an exchange)
 * 1985 ch. 399 (effective April 1, 1986; added an exchange)
 * 1996 ch. 424 (effective immediately; added an exchange effective September 1, 1996)

Early abandonments
authorized by 1928 ch. 597:
 * 1109 Cambridge-Ash Grove 2.05 (Ashgrove Road from Cambridge village line northeast to Chestnut Hill Road)
 * 1082 Cambridge Village 0.63 (Main Street from Park Street east to Cambridge village line)