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
Frequently asked questions
Why does my Sacramento yard flood in winter?
Most likely a combination of flat grade, Sacramento clay loam that doesn't drain, and inadequate or absent drainage infrastructure. Land Park, Curtis Park, and Pocket-Greenhaven lots are particularly prone. The fix is regrading to positive slope plus a French drain or surface swale system to move water to a proper outlet.
How much does drainage correction cost in Sacramento?
Residential drainage correction in Sacramento typically runs $2,000–$10,000. Regrading alone is $1,500–$4,000 for a standard rear yard. French drain installation adds $1,500–$5,000 depending on linear footage and outlet distance. We quote after a site visit — drainage problems vary too much for accurate phone estimates.
Can I connect a French drain to the city storm drain in Sacramento?
Possibly, but it requires a permit from Sacramento Public Works and approved connection. Many residential lots outlet to an adjacent street gutter instead — the water enters the storm system via the gutter, which avoids a direct connection permit. We can assess your outlet options during the estimate.
Will regrading fix a Sacramento foundation moisture problem?
Regrading to positive slope away from the foundation is the first and most cost-effective drainage fix. It won't solve every foundation moisture problem — rising groundwater, cracked foundation walls, or failed waterproofing are separate issues — but correcting surface drainage eliminates the most common cause of foundation wet-season moisture in Sacramento neighborhoods.