Jay Street is getting a curbside parking-protected bike lane between Sands and Fulton streets. View Full Caption Department of Transportation

DOWNTOWN BROOKLYN — The city will begin laying out a new parking-protected bike lane on Jay Street, between Fulton and Sands streets, next week.

Work is expected to begin July 28 and will last several weeks, according to the Department of Transportation.

The project will move Jay Street’s bike lanes, currently sandwiched between the parking and travel lanes, to the curbside, separating cyclists from moving vehicles by a parking lane.

The new street design will feature a 2-foot painted buffer between an 8-foot parking lane and a 5-foot bike lane.

The DOT will also be installing four painted pedestrian islands — two at Johnson Street, one at MetroTech Walk and one at Willoughby Street — and upgrading existing crosswalks along Jay Street under the plan.

Additionally, the agency will add a new signal and crosswalk at the Manhattan Bridge off-ramp, giving pedestrians and cyclists a dedicated signal with which to cross. The agency plans to remove the fence that currently blocks pedestrians from making the crossing.

Jay Street will remain open while the project is completed, according to a DOT spokeswoman.

Community Board 2 voted to approve the bike lane in April, when several parts of the street’s redesign were still in the works.

When the DOT presented the final street design to the board’s transportation committee in June, the committee could not come to a consensus on approving changes to the Manhattan Bridge off-ramp.

The community board’s role is advisory, meaning the DOT can move forward with the project without the board’s vote.