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

The state Department of Transportation said the closings are probable and 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

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

** One lane in either direction may be closed in Riverhead at Route 25, including shoulders, 7 a.m.-3 p.m.

** One westbound lane may be closed in Riverhead between Exits 71 and 73, 7 a.m.-3 p.m.

** One westbound lane may be closed in Huntington between Exits 51 and 52, 10 a.m.-3 p.m.

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

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** All westbound lanes may be closed in North Hempstead between Exits 43 and 40E, 10 p.m. to 5 a.m..

** All eastbound lanes may be closed in Huntington between Exits 49 and 50, 10 p.m.-5 a.m.; after the completion of eastbound work, the westbound lanes will be closed nightly for a bout a week, weather permitting.

** All westbound lanes may be closed be Holbrook between Exits 61 and 60, 10 p.m.-5 a.m.

** All eastbound lanes may be closed in Holbrook between Exits 60 and 61, 10 p.m.-5 a.m.

** Westbound HOV lane may be closed in Holbrook between Exits 64 and 61, 10 p.m.-5 a.m.

** Eastbound HOV lane may be closed in Holbrook between Exits 58 and 60, 10 p.m.-5 a.m.

 

LONG ISLAND EXPRESSWAY SERVICE ROAD

** One westbound lane may be closed in Holbrook between Smith Avenue and Laurel Street, 10 p.m.-5 a.m..

** One eastbound lane may be closed in Holbrook between Laurel Street and Lisa Court, 10 p.m.-5 a.m.

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HECKSCHER STATE PARKWAY/AROUND THE CLOCK

** One southbound lane may be closed in East Islip, north of bridge over Route 27 before Exit 44W, and south of bridge after 44E.

** Two northbound lanes may be closed in East Islip, south of bridge from Exit 45W, and north of bridge after Exit 44W.

 

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ROBERT MOSES CAUSEWAY BRIDGE

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

 

SOUTHERN STATE PARKWAY

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

** Ramp may be partially closed in Hempstead at Exit 18, Eagle Avenue, 11 a.m.-2 p.m.

** One westbound lane may be closed in Bay Shore between Exits 39 and 38, 11 a.m.-2 p.m.

** Peninsula Boulevard entrance ramp may be closed in either direction, 7 a.m.-3:30 p.m.

** One eastbound lane may be closed in Hempstead between Exits 20 and 21. 10 p.m.-5 a.m.

** One westbound lane may be closed in Hempstead at Exit 21, 10 p.m.-5 a.m.

** Peninsula Boulevard entrance ramp may be closed in either direction, 9 p.m.-5 a.m.

** Two westbound lanes may be closed in Malverne between Cornwell Avenue and 250 feet west of Corona Avenue, 10 p.m.-5 a.m.

** One westbound lane may be closed in Bay Shore between Exits 39 and 38, 8 p.m.-5 a.m.

 

ROUTE 24

** Two westbound lanes may be closed in Hempstead between Wantagh Avenue and Meadowbrook State Parkway, 10 p.m.-6 a.m.

** Two eastbound lanes may be closed Hempstead between Meadowbrook State Parkway and Main Street, 10 p.m.-6 a.m.

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

** One lane in either direction may be closed in Flanders between Spinney Road and Cross River Drive, 10 a.m.-3 p.m.

 

ROUTE 25

** One lane in either direction may be closed in Smithtown between Meadow Road and Elliot Place, 9 p.m.-6 a.m.

** One westbound lane may be closed in Southold between Tuckers Lane and Orient Ferry, 7 a.m.-3 p.m..

** One lane in either direction may be closed in Mineola between Herricks Road and Elm Place, 10 a.m.-3 p.m.

** One lane in either direction may be closed in Huntington at Route 110, 10 a.m.-3 p.m.

** One lane in either direction may be closed in Riverhead at the LIE, 7 a.m.-3 p.m..

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

** One eastbound lane may be closed in Stony Brook at Hawkins Road, 10 a.m.-2 p.m.

 

ROUTE 27

** All lanes either direction may be closed in Bay Shore between the merge lane and Brentwood Road, 11 p.m.-5 a.m.

** One lane in either direction may be closed in Merrick between Henry Street and Central Boulevard, 7 a.m.-3 p.m.

** One westbound lane may be closed in Islip between Johnson Avenue and Lakeland Avenue, 9 a.m.-3 p.m.

** One westbound lane may be closed in Islip between Lakeland Avenue and Southern State Parkway, 9 a.m.-3 p.m.

** One westbound lane may be closed in Islip between Nicolls Road and Lincoln Avenue, 10 a.m.-1 p.m.

** One westbound lane may be closed in Islip between Lincoln Avenue and Lakeland Avenue, 10 a.m.-1 p.m.

** One westbound lane may be closed in Islip between Lakeland Avenue and Pond Road, 10 a.m. to 1 p.m.

** One westbound lane may be closed in Islip between Pond Road and Connetquot Avenue, 10 a.m.-1 p.m.

** One westbound lane may be closed in Islip between Connetquot Avenue and Saxon Avenue. 10 a.m. to 1 p.m.

 

ROUTE 27 SERVICE ROAD

** One eastbound lane may be closed in East Islip between Carlton Avenue and Heckscher State Parkway ramp, 9 a.m.-3 p.m.

** One westbound lane may be closed in East Islip between Connetquot Avenue and Heckscher State Parkway ramp, 9 a.m.-3 p.m.

 

ROUTE 101

** One lane in either direction may be closed in North Hempstead between Route 25A and Harbor Road, 8 a.m.-4:30 p.m.

 

ROUTE 106

** One lane in either direction may be closed in Hempstead at Route 105, 9 p.m.-5:30 a.m. and 8 a.m.-4:30 p.m.

 

ROUTE 107

** One lane in either direction may be closed in Hempstead at Merrick Road, 8 a.m.-4:30 p.m.

 

ROUTE 110

** One westbound lane may be closed in Huntington at Pulaski Road, 10 a.m.-3 p.m.

 

ROUTE 112

** One northbound lane may be closed in Port Jefferson Station between Route 347 and Reo Drive, 10 a.m.-3 p.m..

** One southbound lane may be closed in Port Jefferson Station between Route 347 and Roosevelt Avenue, 10 a.m.-3 p.m.

 

ROUTE 347

** One lane in either direction may be closed in Hauppauge between Route 111 and Mount Pleasant Road, 9 p.m.-6 a.m.

** One lane in either direction may be closed in Port Jefferson Station between Route 112 and Terryville Road, 10 a.m.-3 p.m.

** One eastbound lane may be closed in Hauppauge between Route 111 and Mount Pleasant Road, 6 a.m.-11 a.m.

 

ROUTE 878

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

 

COUNTY ROAD R19/PATCHOGUE-HOLBROOK ROAD/AROUND THE CLOCK

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

 

PENINSULA BOULEVARD

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

 

GLEN COVE ROAD

** One lane in either direction may be closed in North Hempstead between Helen Street and Route 107, 8 a.m.-4:30 p.m.