Grading & Drainage: Lincoln vs Rocklin

When do I need a grading permit in Lincoln?

Generally when cuts or fills exceed 50 cubic yards or trigger the depth, height, or slope thresholds in California Building Code Appendix Chapter J §J103, which Lincoln adopts via Title 15. Minor backyard landscaping below those thresholds is typically exempt, but you still must comply with the City's stormwater (Chapter 13.30) and ESCP requirements if construction sediment could leave the site.

What design storm does Lincoln use for drainage?

The City's Public Facilities Improvement Standards Section 6 (Storm Drainage) sets the design criteria. Minor storm systems are typically designed for the 10-year event and major systems (overland release / detention basin overflow) for the 100-year event, with post-construction water-quality treatment sized per the West Placer County Stormwater Quality Design Manual.

Can I regrade my yard so water drains onto my neighbor?

No. Rocklin MC Ch. 15.28 requires approved drainage plans, and California nuisance law (Civ. Code §3479 et seq.) lets neighbors sue when redirected runoff causes damage.

When does my project trigger LID stormwater controls?

The City's Post-Construction Manual (Jan 2019) implements the State Phase II Permit and applies LID/treatment-control requirements to new development and significant redevelopment above thresholds set in the manual.