Drainage Support in Sacramento, CA

Drainage Work We Provide in Sacramento

Drainage support is earthwork-focused — we regrade, trench, and install drainage infrastructure. Pipe connections and drain basin outlets to the storm system involve the city — we coordinate that scope with you.

• Site regrading — correct flat or inverted grade to positive slope away from structure
• French drain installation — perforated pipe in gravel trench, outlet to daylight or basin
• Surface swale construction — vegetated or rock-lined channel to redirect surface flow
• Drain basin and outlet installation
• Retaining wall drainage backfill — drain rock and filter fabric
• Downspout diverter trenching and pipe runs
• Low-spot fill and regrading in rear yards and along property lines

Why Sacramento Drainage Problems Are So Common

Sacramento Valley clay loam doesn't drain — it's nearly impermeable when saturated. Older lots were graded with minimal attention to drainage slope. Add decades of soil settlement and the result is flat lots that pool in winter.

• Clay loam permeability: nearly impermeable when saturated — surface water doesn't percolate
• Older neighborhoods (Land Park, Curtis Park, Pocket-Greenhaven) graded decades ago without modern drainage standards
• Flat topography: Sacramento Valley floor has minimal natural drainage gradient
• Seasonal rainfall (Nov–Mar): 16–20 inches annually, concentrated in winter months
• Tree roots disrupting French drains and perforated pipe in older drainage systems
• Pocket-Greenhaven specifically: low elevation near Sacramento River, historically flood-prone

Drainage Permits and City Connections in Sacramento

Minor regrading and French drain installation generally don't require permits in Sacramento. However, connecting a drainage outlet to the city storm drain system requires coordination with Sacramento Public Works and may require a connection permit.

• Regrading and French drain: typically no permit if work is entirely on private property
• Storm drain connection: permit required from Sacramento Public Works
• Sanitary sewer cannot receive drainage water — only storm system or daylight outlet
• FEMA flood zone properties (near Sacramento/American rivers): additional requirements may apply
• Drainage improvements that alter surface flow onto neighboring property may require civil review

Which drainage fix fits a Sacramento clay lot?

Sacramento's heavy valley clay rules some drainage solutions out. Anything that depends on water soaking into the ground struggles here, so the fixes that actually hold up work by moving water across the surface or by collecting and pumping it — not by infiltrating it.

Dry wells and infiltration pits underperform on saturated Sacramento clay because the soil barely percolates, so we rarely lead with them. The reliable sequence on a flat clay lot starts with regrading to a positive 2% slope away from the foundation — the cheapest step, and it fixes most cases on its own. A surface swale is added to carry sheet flow to a legal outlet, and a French drain with filter fabric goes in where subsurface saturation lingers around the foundation. Low-lying Pocket-Greenhaven is the exception: the water table sits high near the Sacramento River and gravity daylighting often isn't possible, so a collection basin with a sump pump discharging to the street gutter is frequently the only thing that keeps a yard dry through the November–March wet season. Outlet choice drives the whole design — every system needs a legal discharge point, whether that's daylight to a slope, the street gutter, or a permitted storm-drain connection through Sacramento Public Works.