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Earthwork

Monthly Drone Progress Monitoring: Keeping Your Hillside Build On Schedule

Pacific Intelligence·April 15, 2026·6 min read

A hillside rebuild in the Malibu–Pacific Palisades corridor moves fast once earthwork begins. Excavators reshape slopes, fill gets placed and compacted, and what was a grading plan on paper becomes a graded pad in a matter of weeks. The problem is that by the time a deviation becomes visible to the naked eye, it is often expensive to fix. That is exactly why recurring monthly drone monitoring has become one of the smartest line items on a hillside construction budget.

At Pacific Intelligence, our monthly construction-progress package gives owners, builders, and lenders a consistent, measurable, certified record of how a project is actually progressing — not how someone remembers it progressing.

What a monthly monitoring flight captures

Each recurring visit is a full aerial survey flown with DJI Matrice 350/400 RTK aircraft and processed in Pix4D and Civil 3D. Every flight produces three deliverables:

  • Orthomosaics — a stitched, geometrically corrected aerial image of the entire site at survey-grade accuracy, so you can see and measure the whole build at a glance.
  • Point clouds — a dense 3D representation of the as-built terrain and structures, accurate enough to drive engineering analysis.
  • Volumetric comparisons — cut and fill volumes measured against your approved grading plan, flight after flight.

Because we fly the same site on a regular cadence, each month's data stacks against the last. That repetition is where the real value lives. A single flight is a snapshot. A monthly series is a time-lapse you can measure.

Catching grading deviations before they cost you

On a hillside, grading is unforgiving. An over-excavated cut, a fill placed slightly off the planned line, or a slope that drifts from its designed angle can compound quickly into retaining-wall changes, drainage problems, or a failed inspection.

When we overlay each month's point cloud and volumetrics against the grading plan, deviations surface while they are still small. Instead of discovering at rough grade that a pad sits inches off design, the builder sees the trend forming in the previous flight and corrects it with a few hours of dozer time rather than a change order. For owners, this is the difference between a project that tracks the plan and one that quietly drifts off it.

Early detection also protects the schedule. Catching a cut/fill deviation in month two keeps it from becoming the reason your framing crew stands down in month five.

A shared source of truth for the whole team

Construction disputes usually come down to one question: what was the condition of the site on a given date? Monthly aerial documentation answers it definitively. The orthomosaic and point cloud are timestamped, georeferenced, and objective. When the grading subcontractor, the builder, and the owner are all looking at the same measured record, conversations get shorter and disagreements get smaller. That dispute-avoidance value alone often justifies the program.

Supporting lender draw requests

Most hillside rebuilds in this corridor are financed, and lenders release funds in draws tied to verifiable progress. Traditionally that means scheduling an inspector, waiting for a report, and hoping the timing lines up with your draw request.

A monthly drone flight gives your lender something better: independent, measurable proof of work in place. The orthomosaic shows what has been built, and the volumetrics quantify earthwork moved against plan. When a draw request is backed by a current aerial survey and engineering-grade measurements, verification moves faster and disbursements are less likely to stall. For owners carrying a construction loan, a faster draw cycle has a direct, real cost benefit.

From monitoring data to certified as-builts

The same flights that keep your project on schedule also build your as-built record month by month. Rather than scrambling to document final conditions at the end of the job, the as-built grows continuously alongside the work — every buried utility, every graded surface, every placed structure captured at the moment it was exposed.

Because Pacific Intelligence is led by a licensed California civil engineer, those as-builts can be engineer-certified, not just delivered as raw imagery. That certification carries weight with the County, with future buyers, and with your design team if the project ever needs to be revisited. Few drone operators can put a civil engineer's stamp on the deliverable. We can.

Why a recurring cadence beats one-off flights

You could commission a single drone survey when something looks wrong. But by then the deviation already exists, the schedule slip is already baked in, and you have no baseline to compare against. A monthly cadence is preventive rather than reactive. It establishes a continuous record, keeps every stakeholder current, and turns documentation from a year-end chore into an automatic byproduct of the build.

Our monthly construction-progress package runs $1,750–$2,200 per visit on a recurring basis. Against the cost of a single grading rework, a stalled draw, or a contested change order on a hillside project, that is inexpensive insurance — and it produces a certified as-built as a bonus.

Set up a monitoring cadence

If you have a hillside rebuild underway or about to break ground in the Malibu–Pacific Palisades corridor, now is the time to lock in a monitoring cadence — ideally before earthwork starts, so your first flight captures a clean baseline. Pacific Intelligence will fly your site monthly, measure progress against your grading plan, flag deviations early, and deliver engineer-certified as-builts your lender and your team can rely on. Powered by DBAI. Call us at 310-453-5555 or email contact@pacificintelligence.com to schedule your first flight and build your monitoring plan around your construction schedule.

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