Several construction projects will close major roads in Nassau and Suffolk counties, starting Monday.

The state Department of Transportation said the closings are probable, subject to weather conditions and last-minute construction requirements.

The closings listed below are scheduled Monday through Friday, unless otherwise noted. Round-the-clock closings include weekends and holidays.

For more information, motorists can call 511 or visit 511ny.org. In addition, travel information is at informny.com or on hand-held devices at informny.mobi.

LONG ISLAND EXPRESSWAY

** All lanes in either direction may be closed in Holbrook at Exit 61, 10 p.m. to 5 a.m.

** Two eastbound lanes may be closed in Oyster Bay at Sunnyside Boulevard, 10 p.m. to 6 a.m.

** Two westbound lanes may be closed in Riverhead between Exits 73 and 71, 7 a.m. to 3 p.m.

** Two eastbound lanes may be closed in Riverhead between Exits 71 and 73, 10 a.m. to 3 p.m., Monday through Thursday, and 10 a.m. to noon on Friday.

** Eastbound HOV lane may be closed in Huntington between Exits 51 and 52, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Brookhaven between Exits 67 and 70, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Calverton between Exits 70 and 71, 10 a.m. to 3 p.m.

** One westbound lane may be closed in Calverton between Exits 73 and 72, 10 a.m. to 3 p.m.

LIE SERVICE ROAD

** One westbound lane may be closed in Holbrook between Coats Avenue North and County Road 19, 7 a.m. to 3 p.m.

ROBERT MOSES CAUSEWAY BRIDGE

** One lane in either direction may be closed in West Islip between Robert Moses State Causeway and Ocean Parkway, 5 a.m. to 9 a.m.

SOUTHERN STATE PARKWAY

** One lane in either direction may be closed in Hempstead at Exit 20, 10 p.m. to 5 a.m.

** One lane in either direction may be closed in Hempstead between Exits 27 and 13, 7 a.m. to 3:30 p.m.

** One eastbound lane may be closed in Hempstead at Exit 24, 11 a.m. to 2 p.m.

** Northbound Nassau Road off ramp may be closed in Uniondale, 10 a.m. to 3 p.m.

** Southbound Corona Avenue off ramp may be closed in Valley Stream, 10 a.m. to 3 p.m.

ROUTE 24

** One eastbound lane may be closed in Hempstead between Jerusalem Avenue and Main Street, 10 p.m. to 6 a.m.

** One eastbound lane may be closed in East Meadow between Merrick Road and West Gate Street, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Hempstead between Meadowbrook State Parkway and Route 110, 10 a.m. to 3 p.m.

** One westbound lane may be closed in Elmont between Westgate and Belmont Boulevard, 9 a.m. to 3 p.m.

ROUTE 25

** One eastbound lane may be closed in Smithtown between Meadow Road and Kings Park Road, 9 a.m. to 3 p.m.

** One westbound lane may be closed in Smithtown between Meadow Road and Kings Park Road, 10 a.m. to 4 p.m.

ROUTE 25A

** One eastbound lane may be closed in Huntington between Randou Drive and Greenlawn Road, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Smithtown between Kings Park Boulevard and Cosmo Place, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Northport between Woodbine Avenue and Sandy Hollow Road, 10 a.m. to 3 p.m.

ROUTE 27/SUNRISE HIGHWAY

** Two westbound lanes may be closed in Massapequa between the Nassau/Suffolk County Line and Wantagh State Parkway, 10 p.m. to 6 a.m.

** Two westbound lanes may be closed in Islip at Carleton Avenue, 9 p.m. to 5 a.m.

** One westbound lane may be closed in Islip between Route 27A and Southern State Parkway, 10 p.m. to 5 a.m.

** One westbound lane may be closed in Islip between County Road 57 and Robert Moses Causeway, 10 p.m. to 5 a.m.

** One westbound lane may be closed in Babylon between Routes 109 and 110, 10 p.m. to 5 a.m.

** One westbound lane may be closed in Hempstead between Wantagh State Parkway and Meadowbrook State Parkway, 10 p.m. to 5 a.m.

** One eastbound lane may be closed in Massapequa between Block Boulevard and Unqua Road, 10 a.m. to 3 p.m.

** One westbound lane may be closed in Freeport at Park Avenue, 10 a.m. to 3 p.m.

** One westbound lane may be closed in Freeport at Benson Place, 10 a.m. to 3 p.m.

** One westbound lane may be closed in Lynbrook at Peninsula Boulevard, 10 a.m. to 3 p.m.

** One lane in either direction may be closed in Wantagh between Wantagh State Parkway and Meadowbrook State Parkway, 7 a.m. to 3 p.m.

ROUTE 27/SUNRISE HIGHWAY SERVICE ROAD

** One lane in either direction may be closed in Babylon/Islip between Route 109 and Nicolls Road (County Road 97). 10 p.m. to 5:30 a.m.

** One lane either direction may be closed in Babylon/Islip between Route 109 and Nicolls Road (County Road 97), 10 a.m. to 3 p.m.

** One westbound lane may be closed in Babylon between Nicolls Road (County Road 97) and the north end, 10 a.m. to 3 p.m.

ROUTE 27A/MONTAUK HIGHWAY

** One westbound lane may be closed in Amityville at Carmans Mill Road, 10 a.m. to 3 p.m.

ROUTE 102

** One westbound lane may be closed in Uniondale at Uniondale Avenue, 10 a.m. to 3 p.m.

ROUTE 106

** One lane in either direction may be closed in Oyster Bay between Route 107 and the north end, 10 p.m. to 5:30 a.m.

** One northbound lane may be closed in Jericho over the Northern State Parkway, 10 a.m. to 3 p.m.

ROUTE 106/107

** One lane in either direction may be closed in Jericho between Northern State Parkway and North Marginal Road, 9:30 a.m. to 3 p.m.

ROUTE 107

** One lane either direction may be closed in Oyster Bay between NY Route 106 and the North end, 10 p.m. to 5:30 a.m.

ROUTE 108

** One lane in either direction may be closed in Cold Spring Harbor between Route 25A and Woodbury Road, 9:30 a.m. to 3 p.m.

ROUTE 110

** One lane in either direction may be closed in Halesite between Ketewomoke Drive and Grist Mill, 10 a.m. to 3 p.m.

ROUTE 347

** One eastbound lane may be closed in Smithtown between Mount Pleasant Road and Terry Road, 7 a.m. to 2 p.m.

** One westbound lane may be closed in Smithtown between Terry Road and Mount Pleasant Road, 10 a.m. to 3 p.m.

ROUTE 454 VETERANS MEMORIAL HIGHWAY

** One westbound lane may be closed in Hauppauge at Route 111, 10 a.m. to 3 p.m.

ROUTE 878/NASSAU EXPRESSWAY

** One lane in either direction may be closed in Hempstead between Burnside Avenue and Rockaway Turnpike, 10 a.m. to 3 p.m.

** Two lanes in either direction may be closed in Lawrence, north of Toll Plaza, 10 p.m. to 5 a.m.

COUNTY ROAD 19/PATCHOGUE-HOLBROOK ROAD/AROUND THE CLOCK

**One northbound lane may be closed in Holbrook between Main Street and Vacation Court.

COUNTY ROAD 46

** One northbound lane may be closed in East Yaphank between Moriches Road and I-495, 10 a.m. to 3 p.m.

NEW HIGHWAY

** One northbound lane may be closed in Babylon between Hicks Street and Route 109, 10 a.m. to 3 p.m.

** One southbound lane may be closed in Babylon between the Southern State Parkway overpass and Route 109, 10 a.m. to 3 p.m.

PENINSULA BOULEVARD

** One lane in either direction may be closed in Hempstead at Route 878, 10 a.m. to 3 p.m.

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