New York State Route 405
NY 405 highlighted in red | ||||
| Route information | ||||
| Maintained by NYSDOT and the city of Troy | ||||
| Length | 2.63 mi (4.23 km) | |||
| Existed | February–March 1973–April 1, 1980 | |||
| Major junctions | ||||
| South end | US 4 in North Greenbush | |||
| North end | NY 66 in Troy | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Rensselaer | |||
| Highway system | ||||
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New York State Route 405 (NY 405) was a state highway in Rensselaer County, New York, in the United States. It ran for 2.63 miles (4.23 km) between an intersection with U.S. Route 4 in North Greenbush and a junction with NY 66 just inside the Troy city limits. In between, NY 405 intersected NY 136. The entirety of NY 405 was originally part of NY 40. In the February–March 1973, NY 40 was truncated northward to NY 7 in northern Troy and its former routing from US 4 to NY 66 was assigned NY 405. Ownership and maintenance of most of NY 405 was transferred to Rensselaer County on April 1, 1980, at which time the parts of the route given to the county were redesignated as part of County Route 74 (CR 74).