 While PA 37 occupied the 1 @.@ 5 @-@ mile ( 2 @.@ 4 km ) segment of modern PA 434 from US 6 to Greeley , a spur of PA 37 , Pennsylvania Route 137 , occupied the remainder of PA 434 from Greeley to the state line from 1928 to 1946 . In 1946 , however , PA 37 was realigned to follow the entire alignment of PA 434 from US 6 to New York , decommissioning PA 137 in the process . PA 37 remained in existence until 1967 when PA 37 was replaced by PA 434 . In 2004 , State Route 434 was extended from its southern terminus down to an intersection with State Route 739 in Lords Valley . 
