California Stormwater, Grading And Utility Plans
California site development projects need clear civil plans that show how the land will be shaped, drained, protected, and connected to utilities. These drawings help cities review the project and help contractors understand how the work should be built.
Grading And Drainage Plans
A grading plan shows proposed elevations, slopes, cut and fill areas, drainage flow paths, swales, inlets, storm drains, and runoff direction. Drainage calculations may include pre-development and post-development runoff, storm drain sizing, detention or retention requirements, and hydraulic checks.
Stormwater Quality And BMP Design
Many California jurisdictions require stormwater quality measures such as bioretention basins, detention basins, infiltration areas, erosion control measures, or other BMP systems. These features help manage runoff, reduce erosion, improve water quality, and support permit approval.
Utility And Construction Coordination
Civil plans may also include water, sewer, storm drain, service connections, utility routing, public improvement plans, and construction details. Proper coordination helps avoid conflicts between grading, drainage, buildings, utilities, access, and site improvements.
What We Can Provide
- Site grading plan
- Drainage and storm drain plan
- Stormwater quality design
- BMP calculations
- Bioretention or detention basin design
- Utility plan
- Erosion and sediment control plan
- Public improvement plan support
- Civil construction details
- Responses to city plan check comments
Need California Site Development Plans?
Send the site survey, architectural plans, soils report, utility information, and city review notes. We can prepare stormwater, grading, utility, and civil site plans for California residential development projects.