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Actual calculation drawings

Explore the calculation drawings.

These four redacted drawings come from calculation work approved for public display. Start with site or corridor examples, then use the notes to see what can be checked in each file.

Actual work samples

Two calculation approaches across four drawings.

The project identity has been removed. Each preview is followed by a plain reading guide, an original-image link and any approved source file.

Site calculations

Two grid extracts show numbered cells, paired level values and W results. The cropped images do not contain a visible legend, so the notes do not assign unverified units or level roles.

W-01Grid methodSite formation earthwork

Site platform earthwork measured on a calculation grid.

Drawn from the practitioner's own calculation work. Client, location, coordinates and title-block information are not shown. Open original image

How a client can use this drawing

  • Locate a result by its cell number.
  • Compare the paired level values and displayed difference at the cell corners.
  • Cross-reference the W value with the quantity schedule after confirming the drawing legend and units.

Download approved DXF source

Use the DXF to inspect geometry, layers and annotations in AutoCAD or compatible software. Confirm the file's units and calculation basis before relying on a value.

Drawing notes

This extract presents the calculation in numbered square cells. Paired level values and a separate difference appear at grid intersections, while each cell carries a W value.

Cell 221 is readable in the image: 489.78 and 478.25 appear at one corner, the displayed difference is 11.53, and the cell is marked W=1146.43.

The extract does not include a visible legend or unit note. The controlled input list, calculation basis and quantity schedule are needed before assigning roles or units to these values.

What is readable here

489.78 / 478.25
Two level values shown at one grid intersection; the extract does not label which is the design or existing level.
11.53
The displayed difference beside that intersection.
W = 1146.43
The W result printed inside cell 221; confirm its meaning and unit from the calculation basis.
221
The cell identifier used to locate this result.

W-04Grid methodSite formation earthwork

A calculation grid with diagonally oriented cells.

Drawn from the practitioner's own calculation work. Client, location, coordinates and title-block information are not shown. Open original image

How a client can use this drawing

  • Follow the diagonal cell layout without rotating the source drawing.
  • Compare the paired level values and displayed difference at each intersection.
  • Use the W value as a schedule cross-reference only after confirming the legend and units.

Drawing notes

This extract uses a diagonally oriented calculation grid. The image does not show the site boundary or a north arrow, so it does not establish the grid angle or why that orientation was chosen.

One readable intersection shows 434.60, 443.17 and a displayed difference of -8.57. A nearby cell is marked W=214.19.

The drawing legend and calculation basis are needed to identify which level is existing or design, what the sign means and which unit applies to the W values.

What is readable here

434.60 / 443.17
Two level values shown at one grid intersection; their roles are not labelled in the extract.
-8.57
The displayed signed difference at that intersection.
W = 214.19
A W result printed inside one cell; confirm its meaning and unit from the calculation basis.
Diagonal grid
The cell lines run diagonally within this cropped extract.

Corridor calculations

Two section drawings show how a station and its plotted geometry can be checked against an alignment and quantity schedule.

W-02Cross-section methodCorridor earthwork

Corridor earthwork measured at a single station.

Drawn from the practitioner's own calculation work. Client, location, coordinates and title-block information are not shown. Open original image

How a client can use this drawing

  • Confirm the station shown on the section.
  • Compare the plotted profile and hatched calculation area with the corridor drawings.
  • Match the displayed fill and cut values to the schedule, then confirm their units and calculation interval.

Download approved DXF source

Use the DXF to inspect geometry, layers and annotations in AutoCAD or compatible software. Confirm the file's units and calculation basis before relying on a value.

Drawing notes

This drawing is labelled station K0+040.00 and plots a profile over a level grid. The central calculation area is hatched.

The notes below the section read fill 0.00 and cut 2558.53. The image does not show a unit or enough adjacent-station information to determine whether these values are areas, interval quantities or another scheduled result.

Use the station label to find the same location in the alignment and quantity schedule. Confirm line identities, units and the interval calculation from the accompanying legend and calculation notes.

What is readable here

桩号 K0+040.00
Station 0+040, forty metres along the alignment.
Hatched area
The calculation area drawn between the plotted profile lines.
填方 0.00
A displayed fill result of 0.00; confirm the unit in the schedule.
挖方 2558.53
A displayed cut result of 2558.53; confirm the unit and interval in the schedule.

W-03Cross-section methodCorridor earthwork

A corridor section with full annotation.

Drawn from the practitioner's own calculation work. Client, location, coordinates and title-block information are not shown. Open original image

How a client can use this drawing

  • Open the original image to inspect the small point annotations.
  • Check the central alignment and side-slope geometry against the design section.
  • Use the station and point labels to find the corresponding schedule record.

Drawing notes

This wide section shows a central alignment, a formed profile and side slopes meeting the surrounding profile.

Point annotations are present across the section, but they are too small in the web preview to interpret reliably. The original image preserves them for closer inspection.

The station label and point references should be checked against the alignment drawing and quantity schedule before the section is used for a calculation review.

What is readable here

Central alignment
The vertical reference drawn through the middle of the section.
Formed profile
The stepped and graded profile visible across the centre of the section.
Side slopes
The sloping lines connecting the formed profile to the surrounding profile.
Point annotations
Small labels attached to section points; inspect the original image and drawing legend before interpreting them.

Using the files

What to check before asking for similar work.

  • Choose the example closest to your project geometry: a site grid or a corridor section.
  • Open the original image when the preview text is too small, and use the approved DXF files for deeper inspection where available.
  • Compare the drawing with its input list, units, legend and quantity schedule before relying on any displayed value.

Read the grid-method assumptions and checks · Read the cross-section spacing and checks

Secondary example

An illustrative report structure.

The structure below shows how inputs, geometry, quantities and assumptions can be arranged. It does not combine the four drawings into one project.

Explanatory sample, not a client report

Redacted earthwork volume report

Client, location, drawing numbers, coordinates and title-block information are removed. The structure is shown to explain the deliverable, not to identify a project.
Scope summaryScope and measured elements

The opening page identifies the measurement boundary, included elements, drawing revision, unit system and the quantity schedule issued for review.

Controlled inputsDrawings, levels and calculation basis

A controlled input list records which plan, section, level and surface information was used, plus any client-supplied measurement rules.

Review geometryGeometry organized for checking

Selected model and marked-plan views show how calculation zones, excavation limits and structural elements relate to the source drawings.

Quantity scheduleItemized volumes with units

The schedule separates quantities by element or zone and reconciles the detailed records with the report summary.

Assumptions recordWhat the figures include and exclude

The final section states working levels, offsets, material treatments, exclusions and revision notes that affect interpretation of the quantities.

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