By October, a portion west of this segment was under construction. In early 1937, SR 51 was established from Lula to Homer and from north-northeast of Homer to south-southwest of Carnesville. There was no indication if they were connected via concurrencies with SR 15 in the Homer area and/or SR 59 in the Carnesville area.
By October, a western section of this segment was under construction. In early 1937, SR 51 was established from Lula to Homer and from north-northeast of Homer to south-southwest of Carnesville. There was no information about whether these routes were connected via concurrency with other highways in the specified areas.