We have drainage swales where 1 foot to 10 feet sections have been cut out to repair large cracks (up to 1/2 inch). The plan is for rebar to be placed and concrete poured to take care of the cracks. The thinness of the swales, only 2 inches thick in some places, makes it difficult to drill holes into sides of the swales to insert rebar that would help hold the 2 sides of the together. As such, some of the rebar is just hanging loose. In other instances, the rebar was cut too short and so is only anchored on one side. PVC irrigation pipes will be buried in the dirt in select open spaces of the cut swales before concrete is poured. Is this a viable way to fix cracks? Swales must be stable, not leak water or soil underneath will be undermined, leading to potential slope failure!!Our homeowner association with hillsides graded roughly 2:1, separated by 2 to 3 levels of horizontal concrete drainage swales that collect slope runoff to vertical swales. Each side of the swale measures about 4 feet wide. Some work has started to fix LARGE cracks in the concrete (up to 1/2 inches wide) by cutting 1 foot wide sections of the swale, up to 10 feet wide. The thinness of the swales, only 2 inches thick in some places, makes it difficult to drill holes into both sides of the swales to insert rebar that would help hold the 2 pieces together. As such, some of the rebar is just hanging loose. In other instances, the rebar was cut too short and so is only anchored on one side. PVC irrigation pipes will be buried in the dirt in open space before concrete is poured to seal the opening. Questions: is this a viable way to fix the cracks? Swales must be stable, not leak water or soil underneath will be undermined, leading to potential slope failure!! Questions/concerns include: Is a soil test advisable? Should rebar or mesh, or some other material be used? If rebar, what should be rebar spacing and density? How deep should the holes be drilled for insertion of rebar? Should the rebar/concrete interface be coated with epoxy? Is it ok if rebars are only attached on one side? What minimum thickness should the concrete be over the rebar? Should concrete glue be used to help new and old concrete bond on both sides of the swale? Should the opening be filled with any other material besides concrete? Do you believe this will require permits (CA)? Is this approach ok? If not, would appreciate recommendations on how best to fix LARGE cracks in the swales. Thank you!!