County Route 105 (Suffolk County, New York)
| Cross River Drive | ||||
CR 105 highlighted in red | ||||
| Route information | ||||
| Maintained by SCDPW | ||||
| Length | 5.30 mi (8.53 km) | |||
| Existed | 1973–present | |||
| Major junctions | ||||
| South end | CR 104 in Riverside | |||
| NY 24 in Riverside NY 25 in Riverhead | ||||
| North end | Sound Avenue in Riverhead | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| County | Suffolk | |||
| Highway system | ||||
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County Route 105 (CR 105) is a major north–south county road in Suffolk County, New York, in the United States. It is a four-lane, mostly divided highway that runs from CR 104 in Riverside to Sound Avenue in Riverhead, west of the western terminus of CR 48 in Mattituck.