Dec 15, 2014 7:07 PM

Plow technology is key in treating NH roads

NEW HAMPTON - Jim Eckert drives a ramp truck for the Department of Transportation. Stationed in District Three, his truck has a plow in the front, on the side, and a spinner.

"Spinner is just a flat disk with some little blades on it and again I use that more for sand if I'm going down a road similar to this," said Eckert.

He is just one part of the team that monitors the roads. When the snow hits, main line trucks go first.

"We treat both sides of the highway. One lane at a time. From exit 20 to exit 27 and back," said NH DOT highway maintainer Arthur Desrosiers.

Crews get dispatched based on information from the Highway Patrol Foreman. Bryan Pease monitors conditions using Maintenance Decision Support System.

"If it's four o'clock in the morning five o'clock in the morning temperatures rising I'll make my decision on my salt that they're going to put out. If the temperatures dropping how low it's going to drop that will make a decision on the application rate of the salt," said Pease.

DOT crews use a lot of salt. The salt shed in New Hampton when full has four thousand tons of salt in it and in the last month they've used about 1500 tons of salt to treat the roads. Some trucks also have temperature sensors that read how cold the pavement is.


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