The road heads northwest on Main Street in Farmington, a four-lane undivided highway.

Immediately after this intersection, SR-273 terminates at the junction of 600 West, a road paralleling the freeway.

[2] The road from Farmington northwest through Kaysville to Layton was added to the state highway system in 1910,[3] and in the 1920s it became part of SR-1 and US-91.

[9] However, before the 1969 amendments became effective, the State Road Commission further truncated SR-106 due to the planned reconstruction of North Farmington Junction, where SR-106 crossed SR-49 (US-89).

Less than four months later, former SR-272 was deleted from the state highway system, returning SR-273 to its 1969 and present extent.