Stormwater System Rehabilitation that restores capacity and structural integrity from the inside out.

WHAT IT IS

What stormwater system rehabilitation actually restores.

Stormwater rehabilitation addresses two things simultaneously: structural failure (cracks, joint separation, wall corrosion) and hydraulic capacity loss (sediment accumulation, root intrusion, cross-section reduction). Both affect the system's ability to handle design storm flows.

LiningWorks starts every stormwater rehabilitation with a camera inspection of the system. We identify structural defects, measure sediment accumulation, and assess pipe material condition before developing a rehabilitation scope — so the right intervention is applied at each location.

CIPP lining seals structural defects and restores pipe wall integrity. Hydro jetting removes sediment and root accumulation. Spot repairs address isolated collapse points. These methods are combined in a phased program designed around the system's actual condition — not a one-size-fits-all approach.

WHAT STORMWATER REHABILITATION ADDRESSES

Four stormwater system failure types LiningWorks rehabilitates trenchlessly.

Stormwater systems fail through different mechanisms than sanitary sewer systems — sediment loading, abrasion, and freeze-thaw cycling create unique deterioration patterns.

• Structural pipe failure — joint separation, cracking, and collapse

  RCP, CMP, and HDPE storm drain pipes develop joint failures and wall cracks that allow soil migration into the pipe — progressive void formation and eventual surface settlement above.
• Sediment accumulation reducing hydraulic capacity

  Storm drain pipes accumulate gravel, sand, and organic debris at low-gradient sections — progressively reducing flow cross-section until design storm flows cause surface flooding.
• Root intrusion at pipe joints and cracks

  Tree roots enter storm drain pipes through joint gaps and wall cracks. Root masses trap sediment, accelerate structural deterioration, and eventually cause complete flow obstruction.
• Metal pipe corrosion and wall loss in CMP culverts

  Corrugated metal pipe culverts corrode from both inside and outside — wall loss reduces structural capacity and creates leak points that accelerate soil migration and sinkhole formation.

BEFORE & AFTER

Retail center storm drain rehabilitation — 18-inch RCP system in Ballantyne.

An 18-inch RCP storm drain system under a Ballantyne retail center parking lot had developed joint separation at multiple locations — visible as void spaces on camera and confirmed by surface depressions above two pipe segments. Sediment accumulation at the midpoint had reduced hydraulic capacity by approximately 40%.

LiningWorks hydro-jetted the full system to restore design flow, then installed CIPP liners through all jointed pipe sections. Post-installation camera confirmed full liner bond and elimination of all joint gaps. The parking lot surface was not cut — all work was performed through existing curb-inlet access points.