Ocean Parkway before Sandy.

A five-mile stretch of Ocean Parkway reopened Thursday, just shy of the six-month anniversary of Sandy, which washed out miles of its protective dunes, causing chunks of the road to crumble.

The eastbound lanes of the parkway had been detoured onto the westbound side—both of which were reduced to one lane between Tobay and Cedar beaches since late November, when reconstruction began a month after the Oct. 29 superstorm.

“The reopening of Ocean Parkway is a milestone on the road to back to normalcy after Superstorm Sandy, and because of the way we wrote the Sandy relief bill, it was accomplished in record time and at full federal funding,” U.S. Sen. Charles Schumer said.  “I will continue to fight for the resources to make this iconic road stronger and better protected, so that when we face the next major storm, this road isn’t washed away.”

The $33-million job was completed just in time to meet a deadline that ensured full reimbursement from the Federal Highway Administration’s Emergency Relief Program—a month before Memorial Day weekend, the unofficial start of the summer beach and tourist season on Long Island.

The 16-mile parkway connects Jones Beach State Park with Meadowbrook and Wantagh State parkways to the west and Robert Moses Causeway and Captree State Park at its east end as well as a string of town beaches and seaside communities in between.

The eastbound lanes of Ocean Parkway between Wantagh and Meadowbrook are still closed while construction crews are repairing a Sandy-damaged Jones Beach pedestrian tunnel.

On the larger project, crews had worked around the clock dredging 800,000 cubic square yards of sand from the Fire Island Inlet, pumping it onto the eastern end of Jones Beach Island and trucking it down to the Gilgo Beach area to rebuild the dunes where the damage was worst.

Orient Beach State Park on the eastern tip of the North Fork is scheduled to reopen Saturday. Robert Moses State Park, which had its traffic circle undermined by the storm surge, is slated to reopen by Memorial Day.

The search included K-9, marine and aviation bureaus from various departments after the vehicle was found at about 2 p.m., authorities said. The potential missing person reportedly could be a woman from New York City. There was no description of the possible missing person.

No further details were available from police. The investigation is continuing.

The skeletal remains of four missing prostitutes were discovered on Gilgo Beach in December 2010. Six more sets of human remains were discovered along the parkway between Jones Beach and Oak Beach in March and April 2011.

Police believe some of the bodies to be victims of a serial killer, who to date remains at large.

The closure is required to rebuild the pedestrian tunnel between Jones Beach parking field four and the central mall, which is expected to be completed by the Memorial Day Holiday weekend, according to the New York State Department of Transportation.

Drivers will be detoured to Bay Parkway on the north side of the barrier island. The eastbound lanes of the same stretch of Ocean Parkway will also be closed after the first phase of the work is completed.

Drivers are advised to avoid the area to avoid delays. For more information, call 511 or visit www.511ny.org