CONCORD, N.H. — New Hampshire drivers in the Franconia Notch area during coming snowstorms may think may be seeing double when they look at a state plow truck.

New Hampshire transportation officials are poised to deploy a new weapon in their snowplowing arsenal — a tow-behind plow mounted on a trailer that enables one 10-wheel truck to plow two lanes at once.

New Hampshire joins Maine, Vermont and Massachusetts in adding the new “tow plow” device to its fleet of plow trucks.

Transportation officials say the tow plow will be tested first in Franconia Notch and will eventually be deployed to Interstate 93 in Manchester and Interstate 95 on the seacoast.

Officials say there are 200 tow plows in use nationwide, including 70 in Missouri.

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