CID Canal Lining Project at Leslie Road
The pictures below show how Skidmark Geomembrane™ was used to stop water seepage that could have potentially caused a breach in the canal near a busy street intersection. The canal was lined just in front a flume that carries the water above one of the streets. The site preparation was done by CID employees and the liner installation was performed by Hydro Consulting in Pasco, WA who also sealed cracks in the concrete approach to the flume with their AquaLastic® concrete canal sealant.
The Skidmark Geomembrane™ feature that is demonstrated by this project is the ability to be laid over course gravel without padding or a layer of clay to protect it from punctures. The liner was anchored into the berms and by three cut-offs without further need of gravel ballast.
The above left photo shows the course gravel condition of the original canal bed. On the right, workers pull in the eight foot wide liner and position it for welding.
Removing rocks would have been nearly impossible because each time the soil was disturbed, more rocks appeared.
The right photo shows a patch that was performed in minutes due to a welding mistake while training the technicians, not from a rock puncture.
The left photo shows the berm with the liner in place ready for backfilling. The liner was secured in a trench with concrete at the upstream end.
At the downstream end the liner was secured with concrete anchor bolts and a stainless strap. Large rocks that tumbled into the canal while the berm was being backfilled did no damage to the liner.
The water begins to fill the canal and then finally it is back to normal operation.