By Staff

BOSTON (CBS) – New exit numbers will begin going up on Route 128 Thursday.

The numbers have already been changed on the Massachusetts Turnpike and crews are working to finish Route 3.

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They’ll starting replacing signs on Interstate 95 in ten days.

MassDOT says the entire project should be done by the summer.

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The change is a part of a Federal Highway Administration mandate requiring exit numbers to match mile markers.

According to MassDOT, the old exit numbers will be displayed along with new ones at key locations for a minimum of two years.

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The interactive website,, shows what the new mileage-based exit numbers will be. Staff