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<br />( ,\ <br />r.,;:) <br />.~ <br />....-4 <br /> <br />-, <br /> <br /> <br />t.~::'" <br /> <br />PICTURE NO. 2 <br /> <br />The cost of construction is about the same but those drops in <br />the ditch take a lot of time because they are hand formed. Also they <br />create a potential weakness in the structure where cracking is apt to <br />occur. <br /> <br />There are also two methods being used to place the ports within <br />the ditches. The first is to place those small metal gates on the <br />level and in the wet cement, as shown below. <br /> <br /> <br />Afterwards 2" Poly Ethlene pipes are cut <br />of the gates and through the ditch bank. <br /> <br />and made to fit Dver the ends <br />This process costs about $1.55 <br /> <br />- 16 - <br />