The western terminus of the route is at the intersection of SR-110 (4500 West) and 1700 South (west of SR-127, 1700 South becomes the Davis County Causeway, a causeway over the Great Salt Lake that provides access to Antelope Island).

The part of 1700 South east of 2000 West in Syracuse was added to the state highway system in 1931 as SR-108, a designation it still carries.

[3] The entire length of SR-195 was removed from the state highway system in 1947,[4] but was re-added in the 1960s.

[6] The causeway was closed in June 1983 due to high water in the Great Salt Lake,[7] and in 1991 the state legislature passed a law to fund a reconstruction through the Utah Division of Parks and Recreation.

The Utah Transportation Commission gave the causeway to Davis County that year to make it possible for a toll to be charged, leaving SR-127 running only from SR-110 east to SR-108.