Traffic crossing the Route 110 bridge over Sunrise Highway in Amityville will be shifted to temporary bridges starting Thursday night so that construction on a new bridge project can continue, the state Department of Transportation said.

The project also will close lanes of Sunrise Highway in both directions during weekday hours, the agency said.

The existing bridge will be demolished as part of a $23 million project designed to improve safety for the 90,000 motorists, pedestrians and bicyclists who use the route daily, the state agency said.

The project began in September, including the construction of temporary bridges and crosswalks, according to a news release.

The latest phase plans for off-peak day and nighttime closures, weather permitting, in effect Mondays through Fridays through January 2017.

Plans for tearing down the existing bridge mean at least one lane in each direction on Sunrise Highway will be closed from 10 a.m. to 3 p.m., the DOT said.

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From 10 p.m. to 6 a.m., one or two lanes may be closed in one or both directions.

At least one travel lane in each direction of Sunrise Highway will remain open to traffic; however, brief closure of all lanes in both directions is likely at night so that construction equipment can be moved.

If necessary during these brief closures, queued traffic will be guided to a short detour using local roads, then back to Sunrise Highway.

Between Washington and Dixon avenues, signs, temporary pavement and concrete barriers will guide motorists through the traffic shift onto the temporary bridges, the DOT said.

Pedestrians can cross Route 110 to a southbound temporary bridge sidewalk using a crosswalk at South Drive. The northbound sidewalk will be closed, and both northbound and southbound pedestrians will use the southbound temporary bridge.

The closures are weather dependent and may be canceled or postponed by inclement weather. Drivers should plan to take alternate routes to avoid delays, the agency said.

Real-time travel information is available by calling 511 or visiting 511NY.org, the state’s official traffic and travel information source. Also, information is at informny.com.

Mobile users also can get DOT information on Twitter at @NYSDOTLI or at Facebook.com/NYSDOT.