A week's worth of surveys will shut some lanes on Interstate 95 during the day.

They begin after rush hour Monday.

PennDOT's Gene Blaum says crews are doing the survey work in preparation for the next phase of construction for the Girard Avenue area.

"In preparation for the next construction contract, there are six that are involved in rebuilding three miles of 95 from Race Street to just south of Allegheny Avenue," Blaum said. "That includes the reconstruction and improvement of the Girard Avenue interchange."

Blaum stresses that rush-hour traffic should not be hampered by the surveyors.

"The contractor who is performing the surveys will get on the highway after 9 a.m. and be off by 3 p.m., just closing one lane between 9 a.m. and 3 p.m.," he said.

Also starting this week, two northbound lanes will be closed between Philadelphia International Airport and the Walt Whitman Bridge. Work along that stretch won't begin until 10 p.m. and will be wrapped up by 5 a.m.

The much larger project on I-95 is not expected to be completed before 2020, depending on funding.