State Road 105 is an east–west route in northeastern Jacksonville, Florida

Jacksonville, Florida

Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...

. It runs from an intersection with I-95

Interstate 95 in Florida

Interstate 95 is the main Interstate Highway on the east coast of the United States; it serves the Atlantic coast of Florida. It begins at a partial interchange with U.S. Highway 1 just south of downtown Miami, and heads north past Daytona Beach and Jacksonville to the Georgia state line at the St...

 just north of downtown eastward along the north bank of the St. Johns River

St. Johns River

The St. Johns River is the longest river in the U.S. state of Florida and its most significant for commercial and recreational use. At long, it winds through or borders twelve counties, three of which are the state's largest. The drop in elevation from the headwaters to the mouth is less than ;...

 to an intersection with SR A1A

Florida State Road A1A

State Road A1A is a Florida State Road that runs mostly along the Atlantic Ocean, with sections from Key West at the southern tip of Florida, to Callahan, just south of Georgia. It is the main road through most oceanfront towns. SR A1A is designated the A1A Scenic and Historic Coastal Highway, a...

, at the Mayport Ferry

Mayport Ferry

The Saint Johns River Ferry, also known as the Mayport Ferry, is an auto ferry between Mayport and Fort George Island, two areas within Jacksonville, Florida. The 0.9 mile voyage crosses the Saint Johns River about 2.5 miles inland of the river's mouth and travels in an east-west direction for...

.

SR 105 is the only access road to Jacksonville Zoo and Gardens. In fact, the entire road was named Heckscher Drive for years. However, the section from I-95 east to SR 9A has been renamed Zoo Parkway.

History

SR 105 used to run concurrent with SR A1A from the Mayport Ferry up to Talbot Island, however, over the years, the route was truncated to its current eastern terminus.