The highway runs from Pleasant Street in the neighbourhood of Woodside in the south to the A. Murray MacKay Bridge in the north.

The portion from Pleasant Street to Woodland Avenue was built in 1960 and was twinned in 1977.

The Micmac (or Mic Mac) Rotary was a traffic circle located at the intersection of Hwy 111 with Route 318 (Braemar Drive) and Trunk 7 (Main Street/Prince Albert Road/Grahams Grove).

[3] The rotary was removed during a redesign of the intersection in the late 1980s which saw it replaced by the "Micmac Parclo", which consists of a series of overpasses and controlled access lanes.

The resulting roadway through the Parclo and across Lake Micmac to the interchange with Highway 118 is the widest in Atlantic Canada at 10-12 lanes.