save, money, reduce, labor, utility, underground, contractors, trench plates Plate Locks will save you a fortune in labor costs because it can be installed in a fraction of the time it would take a crew to throw down and clean up cold patch. Plate locks never need to be removed when a bridge plate needs to be lifted. This saves you labor costs and cold patch replacement costs. Plate Locks pay for themselves the first time they are used. And you can use them over and over again. Read More