Leaking Dam Repair Services

Wet patches below the wall, an unexplained drop in water level after rain, or muddy seepage on batters often point to liner failure or a porous subgrade, not evaporation alone. On lined dams, bubbles under the membrane, exposed edges at the crest and animal damage at drinking points are common culprits. Steel and concrete reservoirs may leak at panel joints, rusted outlets or failed internal PVC lining.

Early inspection is usually cheaper than emergency relining during peak irrigation. Log water levels over several still days without inflow or use to help separate evaporation from seepage.

UV embrittlement of exposed crest rolls, hoof traffic on unprotected batters, rocky subgrades without geotextile and poor seam welding during the original installation are frequent causes of failure on HDPE systems. PVC ponds fail at folds and penetrations. Torch-on membranes delaminate when moisture was trapped beneath the substrate or flashings were omitted at parapets.

Localised punctures on sound HDPE are often patch-welded after the area is cleaned and dried. Widespread UV cracking, multiple seam failures or subgrade collapse usually justify full relining after the embankment is stabilised. We explain trade-offs clearly so you can budget for the right scope.

Patch repairs use compatible HDPE sheet and extrusion or hot-air welding, with vacuum or air-pressure testing on critical seams where practical. Full relines follow the same preparation standards as new installs: dewatering, subgrade repair, geotextile where needed, anchor trenches and outlet boots detailed to spec.

Annual crest walks, outlet checks and silt management help extend liner life. We offer inspection visits before planting or calving seasons and document findings with photos for insurance or farm records.