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Soil Import and Export: How to Estimate Haul Costs
Soil Nail Wall vs. Retaining Wall: Choosing the Right System — Calichi Design Group
Specific Plan vs. General Plan — Calichi Design Group
Storm Drain Pipe Sizing Using Manning’s Equation
Bioretention Isn’t Always the Answer. But It’s Always the…
Stormwater Calculations: Rational Method vs. TR-55
How to Write a Stormwater Control Plan That Doesn't Come Back…
Portland Stormwater Management: BES, PSMM, and Why Your…
Stormwater Quality vs. Quantity: What Agencies Actually Require
Subgrade Preparation: What Inspectors Look For
Subsurface Detention Systems: StormTech, CDS, and Underground Vaults
How to Design a Drainage Swale
Switchgear Pads and Pull Boxes: The Equipment Nobody Draws…
SWPPP Requirements and Risk Level Determination
Tentative Map vs. Parcel Map vs. Lot Line Adjustment
Testing and Inspection Requirements During Grading
Tract Map vs. Parcel Map: Which Subdivision Map Do You Need? — Calichi Design Group
Transformer Pad Clearances: The 10 Feet Nobody Planned For
Trench Drain Selection and Sizing — Calichi Design Group
Truncated Domes: Placement Rules and Common Mistakes
Underground Service Alert (USA) and Potholing Requirements
Utility Potholing Before Construction — Calichi Design Group
Utility Trench Backfill and Compaction Requirements
V-Ditch vs. Swale: When to Use Each — Calichi Design Group
Value Engineering on Civil Projects: Where to Cut and Where Not To
Van Accessible Parking Stalls: Dimensions, Access Aisles, and…
Variance vs. Conditional Use Permit — Calichi Design Group
Half an Inch Across 200,000 Square Feet: Warehouse Grading Is…
How Do You Size a Water Main for Fire Flow?
How to Size a Water Meter for Commercial Buildings
Water Main Pressure Testing Requirements
What Is a Will-Serve Letter and Why Your Project Can't Move…
What Is C.3 Stormwater? A Plain-English Explanation for…
Accessible Parking: Schools vs. Commercial vs. Residential
Accessible Route Design for Campuses and Large Sites
How Flat Is Too Flat? The ADA-vs-Drainage Problem That Haunts…
How to Calculate ADA Parking Requirements
ADA Path of Travel: Maximum Slopes, Landing Sizes, and…
Every Sidewalk, Every Ramp, Every Cross-Slope: ADA on a…
2% Cross-Slope: The Three Characters That Make Affordable…
Affordable Housing Site Planning in California: TCAC, C.3,…
Fitting a Bioretention Basin on a Half-Acre Lot Is Like…
Appendix B vs. Appendix C Fire Flow: When Each Applies
As-Built Drawings: What They Need to Show and Who Prepares Them
When Is a Backflow Preventer Required?
Why Bay Area K-12 Projects Need Stormwater-First Site Planning
Bay Area Mixed-Use Projects: The Site Planning Challenges…
Bay Area Multifamily Site Planning: C.3 Compliance and Beyond
Bike Lockers vs. Bike Racks: What Your City Actually Requires
How to Set a Building Pad Elevation
Building Permit vs. Grading Permit: What Is the Difference? — Calichi Design Group
CALGreen EV Charging: EV Ready, EV Capable, and EVSE
CBC 11B on Schools: The Plan Check Comments That Follow You Home
What Is a CEQA Exemption and When Does It Apply?
Compaction Testing Requirements and Frequency — Calichi Design Group
Composite Utility Plans: The Drawing That Saves Your Project…
Conditions of Approval: How to Read Them and What They Cost
Construction Staking: What the Surveyor Needs from Your Plans
Cost Estimating for Site Civil Work: Rules of Thumb
Curb and Gutter Types: Rolled, Barrier, and Mountable
Cut and Fill Earthwork Calculations Explained
Density Bonus: When the City Hands You 40 Extra Units and…
Detention vs. Retention: Which Your Project Needs
Does My Project Trigger C.3? The Square Footage Thresholds…
Does My Project Trigger C.3? It’s Not One Threshold Anymore
Why Dry Utility Coordination Takes Longer Than You Think (And…
Dry Utility Design for Multifamily Projects: Trenches,…
How Long Does DSA Really Take? Grab a Chair.
Electrical Vaults: Sizing, Placement, and Why They Always End…
Encroachment Permits: What They Cover and Who Needs One
Environmental Impact Report Timeline and Process — Calichi Design Group
Erosion and Sediment Control BMPs During Construction
Fiber Optic Conduit Requirements for New Development
Fire Access Road Requirements: Width, Turning Radius, and the…
Fire Department Turnarounds: Hammerhead vs. Cul-de-Sac and…
Fire Flow Calculations: What the Fire Code Actually Requires
Fire Hydrant Spacing Requirements by Building Type
Fire Sprinkler Demand vs. Fire Flow: Separate Calculations
Gas Main Extensions: Who Pays and How Long It Takes
Geogrid Soil Reinforcement: When and How to Use It — Calichi Design Group
Geotechnical Report Basics: What Civil Engineers Need from It
Grading Permit Thresholds by Jurisdiction
How to Size a Grease Interceptor
Green Infrastructure vs. Gray Infrastructure for Stormwater
HECO vs. PG&E: Comparing Hawaii and California Utility Processes
How to Calculate ADA Parking Requirements (With the Table…
How to Calculate Bike Parking Requirements (Short-Term vs….
How to Calculate EV Parking Requirements in California…
How to Read a Grading Plan: Contours, Spot Elevations, and…
How to Size a Bioretention Basin: The 4% Rule and When It…
Hydromodification: The Word Your Client Can't Pronounce but…
Improvement Plan Requirements for New Development — Calichi Design Group
Industrial Dry Utility Design: When Your Power Demand Is the…
Your Fire Marshal Just Red-Lined Your Site Plan. Here's Why…
40 Acres of Concrete and Nowhere for the Rain to Go
Your Entire Site Is Impervious. Your Stormwater Engineer Just…
Joint Trench Design: What Every Developer Needs to Know…
Joint Trench and Dry Utility Design in Portland: PGE, Pacific…
K-12 School Site Planning in Honolulu: Drainage, Grading, and…
K-12 Site Planning in the Pacific Northwest: Rain, Terrain,…
Knox Box and FDC Placement Requirements
LID (Low Impact Development) Principles Explained
Can a Playground Be a Stormwater Basin? Turns Out, Your Kids…
Lot Merger vs. Lot Line Adjustment — Calichi Design Group
Mass Timber Buildings: Civil Engineering Considerations
Maximum Driveway Slopes in California: What the Code Says and…
Mixed-Use Site Planning in Honolulu: Balancing Density with…
Planning a Mixed-Use Project in Hood River? Start with the Site
MS4 Permit Compliance for Small Municipalities
Multifamily Site Planning in the Pacific Northwest: What…
Multifamily Site Planning in Walnut Creek: Parking, Grading,…
Oakland Mixed-Use Site Planning: Navigating Entitlements and…
What Oakland Developers Need to Know About Multifamily Site Plans
Parking Lot Grading and Drainage Design
When Does an Existing Building Trigger Path of Travel Upgrades?
Pavement Section Design: Asphalt vs. Concrete for Site Work
Peer Review: What to Look for When Reviewing Another Engineer’s Plans
Pervious Pavement: Types, Maintenance, and Limitations
The PG&E Green Book: A Civil Engineer's Translation Guide
The PG&E Green Book: A Civil Engineer’s Translation Guide
PG&E's New Joint Trench Process: Submit Your Building Permit…
Rule 16 vs. Rule 20 vs. Rule 21: PG&E Service Extensions Explained
How Long Does a PG&E Service Extension Actually Take?
Portland Multifamily Site Planning: Stormwater, Density, and…
Who Maintains Private vs. Public Sewers?
Provision C.3: The Three Pages of Permit Language That…
Public Improvement Bond Requirements for Developers — Calichi Design Group
Rain Gardens vs. Bioretention: Is There a Difference?
How to Respond to Plan Check Comments Efficiently
Retaining Wall Types and When Each Is Appropriate
Rough Grading Certification Process — Calichi Design Group
How to Navigate Sacramento's Multifamily Site Planning Process
Sacramento Retail Site Planning: Utilities, Access, and City…
Sanitary Sewer Design: Minimum Slopes and Pipe Sizing
SB 35 Streamlining: What It Actually Means for Your Civil…
Nobody Budgeted the Civil Scope: A School Modernization…
How to Evaluate Existing Sewer System Capacity
When Does a Sewer Lateral Need to Be Replaced?
Sidewalk Design: Width, Scoring, Ramps, and Common Mistakes
Silva Cells: When Your Stormwater Solution Grows a 50-Foot Tree — Calichi Design Group
Site Grading: Reading Contours and Setting Pad Elevations
What Are C.3 Stormwater Requirements? A Bay Area Project Guide
Small-Town School Site Planning: Lessons from Hood River, Oregon
What Is a Tentative Map? A California Subdivision Guide
Site Planning for Oakland Schools: DSA, Playgrounds, and ADA…
Building Better Schools in Portland: A Civil Engineer's Guide…
What Sacramento School Districts Need from a Civil Site Plan
How Does Site Planning for K-12 Schools Work in Walnut Creek?
Site Planning for Honolulu Multifamily Projects: Slopes,…
Multifamily Housing in Hood River: Site Planning for a…
Mixed-Use Site Planning Across the Pacific Northwest:…
How Portland's Green Infrastructure Rules Shape Mixed-Use…
Retail and Mixed-Use Site Planning in Walnut Creek: What the…
Slope Stability Considerations for Hillside Development
Stormwater Requirements for Small Projects: Yes, Your 5,000…
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SLBE Certified Civil Engineering — Oakland & Alameda County
Calichi SLBE Bid Package — One-Page Reference for Prime Contractors
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Bay Area Civil Engineering by a California PE — Calichi Design Group
Site Development Engineering for Subdivisions, Commercial & Multifamily — Calichi
C.3 Stormwater Compliance for Bay Area Projects — Calichi Design Group
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