Parking Lot Drainage & Stormwater Construction
Parking lot drainage construction with catch basins, French drains, retention ponds, and stormwater compliance. Prevent flooding and meet local environmental regulations.
Stormwater Management and Drainage Systems
Parking lot drainage must handle peak rainfall events while meeting local stormwater regulations. We install catch basins, area drains, French drains, and underground detention systems sized using local rainfall intensity-duration-frequency data. Every drainage system is designed to meet post-development runoff requirements that often limit discharge to pre-development rates.
Site PlanningGreen Parking DesignPaving ConstructionPermeable Paving and Bioretention
Permeable interlocking concrete pavers and porous asphalt allow stormwater to infiltrate directly through the parking surface, reducing or eliminating the need for traditional detention systems. Combined with bioswale landscaping that filters runoff naturally, permeable systems can meet stormwater regulations while reducing construction costs on sites with favorable soil conditions.
Green Parking DesignSolar ConstructionRenovation ServicesEPA and Local Stormwater Compliance
Federal EPA stormwater regulations under the National Pollutant Discharge Elimination System apply to most commercial parking construction projects disturbing one acre or more, requiring stormwater pollution prevention plans, construction site erosion controls, and post-construction water quality treatment. State and local jurisdictions add specific water quality treatment requirements, peak discharge limits, and detention sizing standards that vary by municipality. We design and construct compliant drainage systems including sediment control during construction, oil-water separators for water quality treatment, underground detention vaults sized to local design storms, and bioretention or constructed wetland features where required. Compliance documentation including as-built drainage plans is delivered for the owner's permanent records.
Green Parking DesignSite Planning DesignConstruction ProcessDrainage Failure Case Examples and Remediation
Inadequate drainage is the leading cause of premature parking lot failure. We have remediated multiple lots where original drainage was undersized, including a 240-space Front Range commercial lot where ponding water during summer thunderstorms caused asphalt subgrade saturation, accelerated potholing, and 8 years of premature wear before full base reconstruction was required. Another mountain property required complete drainage retrofit after spring meltwater infiltration caused frost heave damage to over 60 percent of the surface. Our drainage assessment process identifies failing systems through ponding pattern documentation, soil saturation testing, and infrastructure inspection, then designs remediation that addresses the root cause rather than treating surface symptoms.
Renovation ServicesPaving ConstructionFree Estimate