Ditch and canal liner assembly

Abstract

A ditch liner includes: a first corrugation having first and second angled sections, and a central section; and a second corrugation having first and second angled sections, and a central section. The first angled sections are adjacent to each other, the second angled sections are adjacent to each other, the central sections are adjacent to each other, a width of the first angled section of the first corrugation is different than a width of the first angled section of the second corrugation at a first location, a width of the second angled section of the first corrugation is different than a width of the second angled section of the second corrugation at a second location, and a width of the central section of the first corrugation is equal to a width of the central section of the second corrugation at a third location.

What is claimed is: 
     
         1 . A ditch liner having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, the ditch liner comprising:
 a first portion extending in the transverse direction, and having
 a first section having a width in the longitudinal direction, 
 a second section having a width in the longitudinal direction, and 
 a third section positioned between the first section and the second section, and having a width in the longitudinal direction; and 
   a second portion extending in the transverse direction and having
 a first section having a width in the longitudinal direction, 
 a second section having a width in the longitudinal direction, and 
 a third section positioned between the first section of the second portion and the second section of the second portion, and having a width in the longitudinal direction, 
   wherein the third section of the first portion is adjacent to the third section of the second portion in the longitudinal direction,   the width of the third section of the first portion is equal to the width of the third section of the second portion at at least two locations along the transverse direction; and   the width of the first section of the first portion is greater than the width of the first section of the second portion at a first location along the transverse direction.   
     
     
         2 . The ditch liner of  claim 1 , wherein the first section of the first portion is adjacent to the first section of the second portion in the longitudinal direction, and
 the second section of the first portion is adjacent to the second section of the second portion in the longitudinal direction.   
     
     
         3 . The ditch liner of  claim 2 , wherein the first section of the first portion is in a first plane,
 the second section of the first portion is in a second plane,   the third section of the first portion is in a third plane, and   the first plane, the second plane, and the third plane are all different planes.   
     
     
         4 . The ditch liner of  claim 1 , wherein the first section of the first portion is in a first plane,
 the second section of the first portion is in a second plane,   the third section of the first portion is in a third plane, and   the first plane, the second plane, and the third plane are all different planes.   
     
     
         5 . The ditch liner of  claim 1 , wherein the width of the third section of the first portion is equal to the width of the third section of the second portion at all locations along the transverse direction. 
     
     
         6 . The ditch liner of  claim 2 , wherein the width of the second section of the first portion is less than the width of the second section of the second portion at a second location along the transverse direction. 
     
     
         7 . The ditch liner of  claim 1 , wherein the width of the first section of the first portion is different at different locations along the transverse direction. 
     
     
         8 . The ditch liner of  claim 7 , wherein the width of the second section of the first portion is different at different locations along the transverse direction. 
     
     
         9 . The ditch liner of  claim 1 , wherein the width of the third section of the first portion is constant at all locations along the transverse direction. 
     
     
         10 . The ditch liner of  claim 1 , wherein the first section of the first portion has a height perpendicular to its width,
 the first section of the second portion has a height perpendicular to its width, and   the height of the first section of the first portion at the first location is different than the height of the first section of the second portion at the first location.   
     
     
         11 . The ditch liner of  claim 1 , wherein the third section of the first portion has a height perpendicular to its width,
 the third section of the second portion has a height perpendicular to its width, and   the height of the third section of the first portion is equal to the height of the third section of the second portion.   
     
     
         12 . The ditch liner of  claim 1 , wherein the first portion further comprises a first upper section extending from the first section of the first portion such that the first section of the first portion is positioned between the first upper section and the third section of the first portion;
 an anchor port located in the first upper section; and   an anchor port lock attached to the anchor port.   
     
     
         13 . The ditch liner of  claim 1 , further comprising a first edge portion that is located on an edge of the ditch liner in the longitudinal direction, the first edge portion having a gasket-receiving recess,
 wherein the gasket-receiving recess is configured to receive a gasket positioned between the gasket-receiving recess and an edge portion of a second ditch liner such that the gasket is located between the gasket-receiving recess and the edge portion of the second ditch liner.   
     
     
         14 . The ditch liner of  claim 13 , further comprising the gasket, the gasket being a hydrophilic material. 
     
     
         15 . The ditch liner of  claim 1 , further comprising a flow port extending from the first section in the transverse direction, the flow port having an opening configured to allow a liquid contained by the ditch liner to exit the ditch liner through the opening. 
     
     
         16 . The ditch liner of  claim 15 , further comprising a gate positioned at the opening, the gate being movable between a closed position at which the liquid is prevented from passing through the opening, and an open position at which the liquid can pass through the opening. 
     
     
         17 . The ditch liner of  claim 1 , wherein a length of the ditch liner in the longitudinal direction is different at different locations along the transverse direction. 
     
     
         18 . The ditch liner of  claim 1 , wherein the width of the second section of the first portion is different at different locations along the transverse direction. 
     
     
         19 . The ditch liner of  claim 1 , wherein a length of the ditch liner in the longitudinal direction of the ditch liner at one end in the transverse direction is a first length,
 a length of the ditch liner in the longitudinal direction of the ditch liner at an end opposite the one end in the transverse direction is a second length,   the first length is a shortest length of the ditch liner at any location along the transverse direction, and   the second length is a longest length of the ditch liner at any location along the transverse direction.   
     
     
         20 . A ditch liner assembly comprising a plurality of the ditch liners of  claim 19  assembled together such that the one ends of two adjacent ones of the ditch liners are connected to each other, and the opposite ends of the two adjacent ones of the ditch liners are connected to each other.