Long Island State Parkway Police ended in 1980.
Long Island State Parkway Police was created in 1902.
Rhode Island State Police was created in 1925.
Meadowbrook State Parkway was created in 1934.
Southern State Parkway was created in 1927.
Garden State Parkway was created in 1947.
Wantagh State Parkway was created in 1929.
Northern State Parkway was created in 2007-09.
Robert Moses State Parkway was created in 196#.
Lake Ontario State Parkway was created in 195#.
Bethpage State Parkway was created on -1936-11-14.
Bear Mountain State Parkway was created in 2007-08.
Hennepin Canal Parkway State Park was created on 1970-08-01.
Maryland State Police was created in 1921.