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Stormwater and Drainage (30)

Bay Area Multifamily Site Planning: C.3 Compliance and Beyond
Planning a multifamily project in the Bay Area? Calichi walks through C.3 stormwater compliance, density bonus, SB 35, and the multi-jurisdiction...
Bioretention Isn’t Always the Answer. But It’s Always the...
Bioretention works on most sites - but high groundwater, clay soils, and tight urban lots demand a smarter BMP selection process. Here’s how we walk...
Can a Playground Be a Stormwater Basin? Turns Out, Your Kids...
Bay Area K-12 schools are combining C.3 stormwater BMPs with play areas and outdoor classrooms. How living schoolyard design works and how to pay for it.
Detention vs. Retention: Which Your Project Needs
Detention stores stormwater temporarily and releases it slowly. Retention stores it permanently. Your permit tells you which one, but the site conditions…
Does My Project Trigger C.3? It's Not One Threshold Anymore
MRP 3.0 dropped the C.3 threshold from 10,000 SF to 5,000 SF for most projects in 2023. Here's the full tier system - 2,500, 5,000, and 10,000 SF - and what…
Fitting a Bioretention Basin on a Half-Acre Lot Is Like...
Affordable housing stormwater compliance on tight Bay Area sites: the 4% rule math, flow-through planters, underground detention, and how to stop...
Green Infrastructure vs. Gray Infrastructure for Stormwater
Bioretention, permeable pavement, and rain gardens versus pipes, vaults, and detention tanks. When green works, when gray is unavoidable, and how to combine…
How Flat Is Too Flat? The ADA-vs-Drainage Problem That Haunts...
The 2% ADA cross-slope limit and the minimum drainage slope create a real engineering tension. Here's how we solve it in the grading plan - before the...
How to Design a Drainage Swale
Drainage swales collect and convey stormwater across a site. Here is how to design one, including cross-section geometry, slope, capacity calculations, and…
How to Size a Bioretention Basin: The 4% Rule and When It...
Learn how to size a bioretention basin using the 4% rule, BASMAA calculator, and IMP worksheets. When the rule works-and when clay soils and high...
How to Write a Stormwater Control Plan That Doesn't Come Back...
A stormwater control plan is the C.3 compliance document your project can't get a grading permit without. Here's how to write one that doesn't come...
Hydromodification: The Word Your Client Can't Pronounce but...
Hydromodification compliance in California â€” what it is, when it applies, how BAHM analysis works, and why it can double your stormwater BMP...
Parking Lot Grading and Drainage Design
Parking lot grading controls how stormwater drains across the pavement. Here are the slope requirements, inlet placement rules, and drainage patterns that…
Pervious Pavement: Types, Maintenance, and Limitations
Pervious concrete, porous asphalt, and permeable pavers each have different performance characteristics, costs, and maintenance needs. Here is the honest…
Portland Multifamily Site Planning: Stormwater, Density, and...
Planning a multifamily project in Portland? We break down BES stormwater requirements, green street compliance, inclusionary zoning, and density...
Portland Stormwater Management: BES, PSMM, and Why Your...
Portland's BES and the PSMM require on-site stormwater management for ALL development. Here's what engineers need to know before they submit.
Provision C.3: The Three Pages of Permit Language That...
Provision C.3 of the Municipal Regional Permit reshapes every Bay Area project over 5,000 SF under MRP 3.0. Here's what source control, site design, and…
Rain Gardens vs. Bioretention: Is There a Difference?
The terms are used interchangeably, but they are not the same. Rain gardens are informal landscape features. Bioretention is an engineered BMP with specific…
Silva Cells: When Your Stormwater Solution Grows a 50-Foot Tree
Silva Cells are modular underground systems that grow full-size trees under pavement while treating stormwater for C.3 compliance. Here's how they work,…
Storm Drain Pipe Sizing Using Manning's Equation
Storm drain pipe sizing uses Manning's Equation to match pipe capacity to design storm flows. Here is the step-by-step process with real calculations.
Stormwater Calculations: Rational Method vs. TR-55
The rational method and TR-55 are the two most common approaches to stormwater runoff calculation. When to use each, how they differ, and where they fail.
Stormwater Quality vs. Quantity: What Agencies Actually Require
Water quality treatment and flow rate control are separate requirements governed by different regulations. Most projects need both. Here is how to tell them…
Stormwater Requirements for Small Projects: Yes, Your 5,000...
Think stormwater rules only apply to big developments? Think again. Here's exactly when a small addition, ADU, or parking lot repave triggers C.3,...
Subsurface Detention Systems: StormTech, CDS, and Underground…
Underground detention is how you manage stormwater quantity on sites with no room for surface basins. Chamber systems, concrete vaults, and oversized pipes…
Trench Drain Selection and Sizing
Trench drains collect sheet flow across wide areas like loading docks, driveways, and parking lots. Here is how to select the right type, size the channel…
V-Ditch vs. Swale: When to Use Each
V-ditches and swales both convey stormwater, but they serve different purposes. Here is when to use each one, with design criteria, velocity limits, and…
What Are C.3 Stormwater Requirements? Bay Area MRP Compliance Guide
C.3 kicks in at 2,500 SF of impervious under the Bay Area MRP. Covers three tiers, 80% capture sizing, and which watershed program reviews your project.
What Is C.3 Stormwater? A Plain-English Explanation for...
C.3 is the stormwater provision developers keep hearing about but nobody explains clearly. Here's what it means, what triggers it, and what compliance...
Why Bay Area K-12 Projects Need Stormwater-First Site Planning
Bay Area K-12 school site planning must account for MRP C.3 stormwater requirements from day one. We explain why and how we design around it.
Your Entire Site Is Impervious. Your Stormwater Engineer Just...
Industrial sites in California face C.3, IGP/MSGP, and hydromodification rules all at once. We explain what they mean and how to design around them.

Dry Utilities and Joint Trench (19)

Composite Utility Plans: The Drawing That Saves Your Project...
A composite utility plan overlays all utility designs onto one drawing to catch conflicts before construction. Here's why it should be mandatory on...
Dry Utility Design for Multifamily Projects: Trenches,...
Here's a scenario I walk into a few times a year: a multifamily project is about 30% into design. The architect has a clean site plan. Parking's figured…
Electrical Vaults: Sizing, Placement, and Why They Always End...
Electrical vault sizing, placement constraints, clearance requirements, and coordination tips for civil engineers - including why vaults...
Fiber Optic Conduit Requirements for New Development
Many jurisdictions now require fiber optic conduit in new subdivisions and commercial projects. Here is what to install, where it goes, and who pays for it.
Gas Main Extensions: Who Pays and How Long It Takes
Gas service extensions under PG&E Rule 15 follow a process similar to electric Rule 16. Here is the cost structure, timeline, and the all-electric alternative.
HECO vs. PG&E: Comparing Hawaii and California Utility Processes
Hawaiian Electric and PG&E have different service extension rules, timelines, and costs. If you are developing in both states, here is what to expect.
How Long Does a PG&E Service Extension Actually Take?
PG&E electric service timelines range from 6 months to 3 years. Here is where the time goes, what causes delays, and how to protect your schedule.
Industrial Dry Utility Design: When Your Power Demand Is the...
Industrial dry utility consulting in California: dedicated feeders, PG&E capacity studies, and conduit routing for warehouses, cold storage, and...
Joint Trench and Dry Utility Design in Portland: PGE, Pacific...
How dry utility coordination in Portland actually works - PGE vs. Pacific Power territories, BDS and PBOT routing, Lumen and Comcast, and why...
Joint Trench Design: What Every Developer Needs to Know...
A Bay Area civil engineer breaks down PG&E joint trench design requirements, realistic timelines, common developer mistakes, and the civil engineer's...
PG&E's New Joint Trench Process: Submit Your Building Permit...
PG&E now requires approved building permit drawings before starting joint trench design - and their turnaround is roughly 90 days. Here's what changed,...
Rule 16 vs. Rule 20 vs. Rule 21: PG&E Service Extensions…
PG&E electric service extensions fall under Rule 16, Rule 20, or Rule 21 depending on who pays and why. Here is which one applies to your project and what…
Switchgear Pads and Pull Boxes: The Equipment Nobody Draws...
PG&E's switchgear pads and pull boxes show up on design drawings after your site plan is already permitted. Here's what civil and electrical engineers...
The PG&E Green Book: A Civil Engineer's Translation Guide
The PG&E Electric and Gas Service Requirements is 600 pages of standards most developers never read. Here's what actually matters for your Bay Area...
Transformer Pad Clearances: The 10 Feet Nobody Planned For
PG&E transformer pad clearance requirements explained by a civil PE - front, side, and rear dimensions, NEC rules, and why every site plan needs to...
Utility Potholing Before Construction
Potholing exposes buried utilities before construction to verify their exact location. Here is when potholing is required, how it works, what it costs, and…
Utility Trench Backfill and Compaction Requirements
Trench backfill is where most utility failures start. Material selection, lift thickness, compaction requirements, and what the inspector is looking for.
What Is a Will-Serve Letter? Utilities, Timelines, and Expiration
A will-serve letter confirms a utility can serve your project. Required from water, sewer, electric, and gas before entitlement. Processing runs 2-12 weeks.
Why Dry Utility Coordination Takes Longer Than You Think (And...
Dry utility coordination in California takes months, not weeks. Here is the honest timeline for PG&E, AT&T, and telecom - and how to front-load it so...

Site Planning, Streets, and Permits (33)

40 Acres of Concrete and Nowhere for the Rain to Go
Industrial site planning is a different discipline. Massive impervious areas, WB-67 truck templates, IGP permits, and C.3 BMPs that eat your yard....
Affordable Housing Site Planning in California: TCAC, C.3,...
How site plan decisions affect TCAC scoring, C.3 stormwater on tight infill lots, parking reductions under AB 2097, ADA compliance, and the 18-24 month...
Bay Area Mixed-Use Projects: The Site Planning Challenges...
Multi-jurisdiction stormwater, C.3 compliance, SB 35 streamlining, density bonus, and CEQA surprises - the real site planning challenges on Bay Area…
Building Better Schools in Portland: A Civil Engineer's Guide...
Portland K-12 school site planning requires navigating BES stormwater rules, BDS plan check, and Oregon structural code. Here's what civil engineers...
CBC 11B on Schools: The Plan Check Comments That Follow You Home
The 10 CBC 11B plan check comments civil engineers see on every K-12 school project - cross-slopes, ramp landings, curb ramps, accessible parking, and...
Curb and Gutter Types: Rolled, Barrier, and Mountable
Type A, B, C, rolled curb, barrier curb, mountable curb - which curb profile to use where, and what the standard details actually mean.
Encroachment Permits: What They Cover and Who Needs One
Any work in the public right-of-way requires an encroachment permit. Utility connections, driveway approaches, frontage improvements, and even temporary…
How Does Site Planning for K-12 Schools Work in Walnut Creek?
K-12 school site planning in Walnut Creek: DSA approval, C.3 stormwater, CCCFPD fire access, and ADA compliance - by a licensed CA PE.
How Portland's Green Infrastructure Rules Shape Mixed-Use...
Portland's PSMM, green streets policy, ecoroof requirements, and Central City Plan District rules define every mixed-use site plan. Here's how civil...
How to Navigate Sacramento's Multifamily Site Planning Process
A practical guide to multifamily site planning in Sacramento - covering City CDD entitlements, SB 35 streamlining, C.3 stormwater compliance, SMUD...
K-12 School Site Planning in Honolulu: Drainage, Grading, and...
Site planning for K-12 schools in Honolulu means navigating coral soils, CZMA coastal zones, and Hawaii DOE permit timelines. Here's what it takes.
K-12 Site Planning in the Pacific Northwest: Rain, Terrain,...
Site planning for K-12 schools in Oregon and Washington means designing for heavy rain, steep terrain, and green schoolyard requirements. Here is how...
Mixed-Use Site Planning Across the Pacific Northwest:...
Oregon and Washington have different stormwater rules, permit timelines, and green building codes - and they all shape your mixed-use site plan. Here's...
Mixed-Use Site Planning in Honolulu: Balancing Density with...
Honolulu mixed-use development requires navigating DPP permits, BWS water availability, HCDA Kakaako rules, and coral soil drainage. Here’s how we...
MS4 Permit Compliance for Small Municipalities
If your project discharges to a municipal storm drain, the MS4 permit applies. Phase I vs Phase II, what it means for developers, and the stormwater…
Multifamily Housing in Hood River: Site Planning for a...
Hood River is growing fast and the land supply is tight. We break down what multifamily site planning actually requires in Hood River - terrain, UGB...
Multifamily Site Planning in the Pacific Northwest: What...
Thinking about a multifamily project in Oregon or Washington? We break down the stormwater rules, green building mandates, and density regulations that...
Multifamily Site Planning in Walnut Creek: Parking, Grading,...
Multifamily site planning in Walnut Creek: parking, C.3 stormwater, grading, density bonus, and utility coordination - by a licensed CA PE.
Nobody Budgeted the Civil Scope: A School Modernization...
California school modernization projects trigger far more civil work than anyone budgets for. Here's what the ADA path-of-travel rule, stormwater...
Planning a Mixed-Use Project in Hood River? Start with the Site
Planning a mixed-use or retail project in Hood River? Here's what the site is telling you before permits, parking, and the City even get involved.
Retail and Mixed-Use Site Planning in Walnut Creek: What the...
Site planning for retail and mixed-use projects in Walnut Creek: parking ratios, C.3 stormwater, CCCSD, EBMUD, and Downtown Specific Plan requirements...
Sacramento Retail Site Planning: Utilities, Access, and City...
Planning a retail or mixed-use project in Sacramento? We walk through utilities (SMUD, SRCSD), access, CDD entitlements, Central City Specific Plan,...
Sidewalk Design: Width, Scoring, Ramps, and Common Mistakes
Minimum widths, expansion joint spacing, ADA ramp requirements, and the scoring pattern details that plan checkers always catch.
Site Planning for Honolulu Multifamily Projects: Slopes,...
Site planning for multifamily housing in Honolulu means navigating steep terrain, volcanic soils, coastal zone rules, and City and County DPP...
Site Planning for Oakland Schools: DSA, Playgrounds, and ADA...
Site planning for Oakland K-12 schools means navigating DSA, OUSD Living Schoolyards, C.3 stormwater, and ADA path-of-travel. Here's how we approach it.
Small-Town School Site Planning: Lessons from Hood River, Oregon
Hood River K-12 school site planning means working around steep terrain, City of Hood River stormwater standards, and a small-town infrastructure grid with…
Tentative Map vs. Parcel Map vs. Lot Line Adjustment
Three different subdivision instruments serve three different purposes. The type of map determines your approval process, timeline, and filing requirements.
Tract Map vs. Parcel Map: Which Subdivision Map Do You Need?
Tract maps and parcel maps are both subdivision maps, but they apply to different project sizes and follow different approval tracks. Here is when each is…
Variance vs. Conditional Use Permit
Variances and conditional use permits both allow deviations from zoning rules, but they serve different purposes and have different legal standards. Here is…
What Is a CEQA Exemption and When Does It Apply?
CEQA review can add 6 to 18 months to a project. Categorical and statutory exemptions skip that entirely. Here is when your project qualifies.
What Is a Tentative Map? California Subdivision Map Act Explained
California tentative maps: what they contain, when the Subdivision Map Act requires one vs. a parcel map, and realistic 9-24 month approval timelines.
What Oakland Developers Need to Know About Multifamily Site Plans
Site planning for multifamily housing in Oakland: SB 35, density bonus law, C.3 stormwater compliance, and Oakland Fire access rules explained for...
What Sacramento School Districts Need from a Civil Site Plan
K-12 school site planning in Sacramento: DSA approval, stormwater compliance, Central Valley flood zones, expansive soils, and ADA compliance - by a licensed...

Grading and Earthwork (19)

Building Permit vs. Grading Permit: What Is the Difference?
Building permits and grading permits are separate approvals with different scopes, triggers, and review processes. Here is when each is required, what…
Compaction Testing Requirements and Frequency
Compaction testing verifies that fill soil and backfill meet the density specified in the geotechnical report. Here is when testing is required, how often,…
Cut and Fill Earthwork Calculations Explained
Cut and fill earthwork calculations determine how much soil moves on your project. Average end area, grid method, and software approaches explained with…
Geogrid Soil Reinforcement: When and How to Use It
Geogrids reinforce soil to build steeper slopes, support retaining walls, and stabilize weak subgrades. Here is how geogrid reinforcement works, when it is…
Grading Plan Requirements: Permit Thresholds and When You Need One
Grading permit thresholds vary by jurisdiction. Oakland triggers at 50 cu yd. We explain what a grading plan includes and how it precedes a building permit.
Half an Inch Across 200,000 Square Feet: Warehouse Grading Is...
Warehouse grading tolerances, dock approach profiles, cut/fill balance, subgrade prep, and drainage across massive industrial pads. What the civil...
How to Read a Grading Plan: Contours, Spot Elevations, and...
Learn how to read a grading plan - contour lines, spot elevations, flow arrows, cut/fill, and slope callouts explained in plain language for developers...
How to Set a Building Pad Elevation
Setting a building pad elevation balances drainage, earthwork, flood protection, and accessibility. Here is the process for getting it right.
Maximum Driveway Slopes in California: What the Code Says and...
California driveway slope limits range from 5% (ADA) to 20% (residential). Learn the code citations, fire lane rules, and what actually works on...
Oakland Mixed-Use Site Planning: Navigating Entitlements and...
Site planning for retail mixed-use projects in Oakland: Broadway Valdez, Lake Merritt Station Area, SB 35, C.3 stormwater, EBMUD, and Oakland Fire...
Retaining Wall Types and When Each Is Appropriate
Gravity, cantilever, MSE, soldier pile, soil nail - each retaining wall type has a cost range, height limit, and site condition where it makes sense. Here's…
Rough Grading Certification Process
Rough grading certification confirms that earthwork is complete and the site is ready for building construction. Here is who issues it, what it covers, what…
Sanitary Sewer Design: Minimum Slopes and Pipe Sizing
Sanitary sewer design requires minimum slopes to maintain self-cleansing velocity. Here are the pipe sizing rules, minimum slopes by diameter, and common…
Site Grading: Reading Contours and Setting Pad Elevations
Reading contour lines, setting pad elevations, and designing drainage slopes. A practical guide to site grading fundamentals for civil engineers and developers.
Slope Stability Considerations for Hillside Development
Hillside projects require slope stability analysis before you set a single grade. Factor of safety, failure modes, and what the geotech report must address.
Soil Nail Wall vs. Retaining Wall: Choosing the Right System
Soil nail walls and conventional retaining walls solve the same problem differently. Here is how each system works, cost comparisons, site constraints that…
Subgrade Preparation: What Inspectors Look For
Subgrade preparation is the foundation of every pavement, slab, and building pad. Proof rolling, moisture conditioning, and compaction testing explained.
Testing and Inspection Requirements During Grading
Compaction testing, soil sampling, proctor tests, and field inspections - the QA/QC program that your grading permit requires during earthwork operations.
What Is Construction Staking? Process, Stake Markings, and Cost
Staking converts civil plan coordinates to physical site markers for contractors. We cover what your surveyor needs, how stakes are read, and costs: $6K-$40K.

ADA, Parking, and Site Access (14)

2% Cross-Slope: The Three Characters That Make Affordable...
CBC 11B's 2% max cross-slope on accessible routes creates a real tension with drainage. Here's how it drives cost on affordable housing projects - and...
Accessible Parking: Schools vs. Commercial vs. Residential
Accessible parking requirements differ by building type. Schools need accessible bus zones. Commercial needs van spaces. Residential needs assigned…
Accessible Route Design for Campuses and Large Sites
Accessible routes on campuses, medical centers, and multi-building sites require careful path-of-travel planning. Running slopes, cross-slopes, and the…
ADA Path of Travel: Maximum Slopes, Landing Sizes, and...
California CBC 11B path of travel: 5% max running slope, 2% max cross-slope, 60" x 60" landings, 48" clear width. The numbers that matter and why...
Bike Lockers vs. Bike Racks: What Your City Actually Requires
CALGreen requires both short-term racks and secure long-term storage - but Oakland and SF go further. Here's what each class requires, where it goes,...
CALGreen EV Charging: EV Ready, EV Capable, and EVSE
CALGreen 2022 defines three EV infrastructure tiers - EV Capable, EV Ready, and EVSE - each with different electrical and conduit requirements. Here’s...
Every Sidewalk, Every Ramp, Every Cross-Slope: ADA on a...
CBC Chapter 11B on a K-12 campus means every walkway, ramp, and playground route is a regulated path of travel. Here's what DSA actually enforces - and...
How to Calculate ADA Parking Requirements
How to calculate ADA parking requirements using CBC Table 11B-208.2. Van-accessible stalls, access aisle dimensions, signage rules, and common plan check…
How to Calculate ADA Parking Requirements (With the Table...
The complete ADA and CBC accessible parking table, van accessible ratios, stall dimensions, slope limits, and common mistakes - all in one place.
How to Calculate Bike Parking Requirements (Short-Term vs....
CALGreen and city-specific bike parking tables by occupancy type - short-term racks vs. long-term secure storage, rack spacing, aisle widths, and the...
How to Calculate EV Parking Requirements in California...
CALGreen 2022 EV parking requirements by occupancy type - exact percentages, conduit sizing, panel capacity, and how local Bay Area jurisdictions make...
Truncated Domes: Placement Rules and Common Mistakes
Truncated dome detectable warning surfaces are required at curb ramps, transit platforms, and hazardous vehicle areas. Size, spacing, color, and placement…
Van Accessible Parking Stalls: Dimensions, Access Aisles, and...
CBC 11B-502: primary van accessible stall is 12' wide + 5' aisle. Exception: 9' + 8' aisle. 98" vertical clearance. 2% max slope. The dimensions, the...
When Does an Existing Building Trigger Path of Travel Upgrades?
Renovations above a cost threshold trigger ADA path-of-travel upgrades to the primary entrance. The 20% rule, what counts as a valuation trigger, and how to…

Fire Access and Fire Flow (8)

Appendix B vs. Appendix C Fire Flow: When Each Applies
Appendix B is for commercial and multifamily. Appendix C is for one- and two-family dwellings. The distinction drives your fire flow, hydrant spacing, and…
Fire Access Road Requirements: Width, Turning Radius, and the...
CFC Chapter 5 fire access road requirements: 20 ft minimum width, 28.5 ft turning radius, 150 ft dead-end limit, 13.5 ft clearance. The specific...
Fire Department Turnarounds: Hammerhead vs. Cul-de-Sac and...
CFC 503.2.5: any dead-end fire access road over 150 feet needs a turnaround. Here are the actual dimensions for hammerhead (60x20 ft legs), cul-de-sac...
Fire Flow Calculations: What the Fire Code Actually Requires
Fire flow requirements determine your water main size, hydrant spacing, and sometimes whether your project is feasible. Here is how the calculations work.
Fire Hydrant Spacing Requirements by Building Type
Fire hydrant spacing is based on fire flow requirements, not a fixed distance. 600 feet for residential, 300 feet for high-demand buildings. Here are the rules.
Fire Sprinkler Demand vs. Fire Flow: Separate Calculations
Fire sprinkler demand is calculated by the fire protection engineer. Fire flow is calculated per the fire code. Your water system must deliver both…
How Do You Size a Water Main for Fire Flow?
Water main sizing for fire flow depends on required GPM, pipe material, available pressure, and system configuration. Here is how to size it correctly.
Your Fire Marshal Just Red-Lined Your Site Plan. Here's Why...
26-foot fire lanes, aerial apparatus setbacks, 3,000 GPM fire flow, and the trailer-in-the-fire-lane problem that kills occupancy permits. What CFC...

Water and Sewer (7)

How to Evaluate Existing Sewer System Capacity
A sewer capacity analysis determines whether the existing system can handle additional flow from new development. Here is how the analysis works and when it…
How to Size a Grease Interceptor
Grease interceptor sizing depends on fixture drainage, flow rate, and retention time. Here is how to size one correctly and when they are required.
How to Size a Water Meter for Commercial Buildings
Water meter sizing for commercial buildings depends on peak demand, fixture units, and fire service requirements. Here is how to determine the correct meter…
Private vs. Public Sewer: Where the Line Falls and Who Pays for Repairs
Private sewer ends at the public main. The split point varies by city. Three demarcation models, HOA obligations, and implications for new development covered.
Water Main Pressure Testing Requirements
Water main pressure testing verifies that new pipe installations are leak-free before being placed in service. Here are the test procedures, pressures, and…
When Does a Sewer Lateral Need to Be Replaced?
Sewer lateral replacement is triggered by property transfer, remodeling, or failed inspection. Here is when it is required and what the process involves.
When Is a Backflow Preventer Required?
Backflow preventers protect the public water supply from contamination. Here is when they are required, what type to use, and how they affect your site plan.

Working With a Civil Engineer (23)

As-Built Drawings: What They Need to Show and Who Prepares Them
As-built drawings document what was actually constructed, not what was designed. Pipe locations, invert elevations, and deviations from the approved plans.
Conditions of Approval: How to Read Them and What They Cost
Conditions of approval are not suggestions. They are legally binding requirements that must be satisfied before permits, final maps, or certificates of…
Cost Estimating for Site Civil Work: Rules of Thumb
Rough-order-of-magnitude costs for grading, paving, utilities, and stormwater. The unit costs and multipliers that get you to a budget number before…
Density Bonus: When the City Hands You 40 Extra Units and...
California's density bonus law hands you extra units. But more units means more parking, more impervious area, bigger BMPs, and a grading plan that...
Environmental Impact Report Timeline and Process
Environmental impact reports can take 12 to 36 months to prepare and certify. Here is how the EIR process works, what triggers the requirement, the timeline…
Erosion and Sediment Control BMPs During Construction
Silt fences, fiber rolls, inlet protection, stabilized entrances - the erosion control BMPs your grading permit requires and how to actually install them.
Geotechnical Site Investigation & Due Diligence
Professional site investigation covering geology, subsurface conditions, utility location, environmental assessment.
How Long Does DSA Really Take? Grab a Chair.
The honest timeline for DSA plan review on California K-12 projects: what gets reviewed, what causes delays, and how to keep your project moving.
How to Respond to Plan Check Comments Efficiently
Plan check comments are inevitable. How you respond determines whether the project moves forward or enters a loop. Structure, format, and strategies for…
Improvement Plan Requirements for New Development
Improvement plans are the construction documents for public infrastructure: streets, sidewalks, water, sewer, and storm drain. Here is what they include,…
Knox Box and FDC Placement Requirements
Knox boxes and fire department connections have specific placement rules that fire marshals enforce strictly. Height, location, visibility, and…
LID (Low Impact Development) Principles Explained
Low Impact Development is not a product - it is a design approach. Manage stormwater at the source using infiltration, evapotranspiration, and small…
Lot Merger vs. Lot Line Adjustment
Lot mergers combine parcels into one. Lot line adjustments move a boundary between two parcels. Here is how each process works, what triggers each one,…
Mass Timber Buildings: Civil Engineering Considerations
Mass timber is changing building design. The civil engineering implications - lighter foundations, different fire flow, unique grading constraints - are…
Pavement Section Design: Asphalt vs. Concrete for Site Work
R-value, traffic index, aggregate base thickness - how pavement sections are designed for parking lots, drive aisles, and private roads.
Peer Review: What to Look for When Reviewing Another…
Peer reviewing civil plans is a skill. Here is a systematic approach: drainage, accessibility, utilities, fire access, and the details that plan check…
Public Improvement Bond Requirements for Developers
Public improvement bonds guarantee that subdivision infrastructure gets built. Here is how bonds work, the types required, how cost estimates determine bond…
SB 35 Streamlining: What It Actually Means for Your Civil...
SB 35 speeds up ministerial approval for qualifying multifamily projects-but stormwater, fire access, and objective design standards still apply....
Soil Import and Export: How to Estimate Haul Costs
Soil import and export costs depend on haul distance, truck capacity, and site conditions. Here is how to estimate haul costs for earthwork projects.
Specific Plan vs. General Plan
General plans set city-wide land use policy. Specific plans implement that policy for defined areas with detailed development standards. Here is how they…
SWPPP Plan Requirements & Stormwater Best Practices
Understand SWPPP requirements, thresholds, and best management practices. California stormwater compliance.
Underground Service Alert (USA) and Potholing Requirements
Before you dig, you call 811. But the marks are approximate. Potholing is how you find the actual utility locations before your excavator hits a gas main.
Value Engineering on Civil Projects: Where to Cut and Where…
Every project has a budget gap. Value engineering closes it. But cutting the wrong items creates problems that cost more than the savings. Here is where to…