Quantity takeoff and MF check, Hagtornsgatan–Slånbärsvägen

Earthworks, water and sewer, street and lighting quantities taken off the CAD layers of tender drawing 101, with the scale verified and every item compared with the bill of quantities (MF). Trench excavation and pipe bedding are well above the MF.

Drawing 101, plan 1:400 (A2), FUÅlsta Ängar etapp 2, street and water & sewerBasis: MF, type section T-201, AMA Anläggning 23Prepared 2026-11-05

Summary

Trench excavation · CBB.3111

Excavation is +23.7% above the MF

3,650 m³ from the drawing against 2,950 m³ in the MF. With the 1:1 slopes of T-201, the main and side trenches alone come to 3,329 m³; the MF volume corresponds to a slope of about 1:0.68. Raise as a question to the client before the tender deadline: which slope and trench width the MF assumes.

Pipe bedding · CEC.2111

Bedding is +19.7% above the MF

81.4 m³ from the drawing against 68 m³. The MF includes the 140 m of service pipes, but its bedding is below even the 72.7 m³ for the main and side trenches. Ask the client whether bedding in the 13 service trenches is included, and price it separately if not.

Other items

9 of 11 items within ±2%

Pipes, manholes, gullies, kerbs, asphalt and lighting agree with the MF. The scale was confirmed as 1:400 from two independent dimensions. These items can be priced at the MF quantities.

Drawing 101 by CAD layer

The checkbox shows or hides a layer. Selecting a layer name highlights its geometry and shows the measured quantity. Drag to pan, scroll to zoom. Rows in the MF comparison select the same geometry.

Drag to pan · scroll to zoom
HAGTORNSGATANHAGTORNSGATANSLÅNBÄRSVÄGENÅLSTA4:12ÅLSTA4:13ÅLSTA4:14ÅLSTA4:15ÅLSTA4:16ÅLSTA5:1ÅLSTA5:2ÅLSTA5:3ÅLSTA5:4ÅLSTA6:1ÅLSTA6:2ÅLSTA6:3ÅLSTA6:40/0000/0200/0400/0600/0800/1200/1400/1600/1800/0150/0300/0450/0600/0750/0906,52,52,02,05,52,0R6R6SP1SP2SP3SP4SP5SP6SP7D1D2D3D4D5D6D7S PVC 200D PVC 315V PE 160S PVC 200D PVC 315B1B2B3B4B5B6B7B8B9BC1FPFPANSL. BEF. GATAMATCHLINJE – SE 101-02SE RITNING 102BEF. VN 6 581 450E 152 300N 6 581 400E 152 300N 6 581 353E 152 300N 6 581 450E 152 350N 6 581 400E 152 350N 6 581 353E 152 350N 6 581 450E 152 450N 6 581 400E 152 450NANMÄRKNINGAR1. Koordinatsystem SWEREF 99 18 00, höjdsystem RH 2000.2. Mått i meter om ej annat anges.3. Ledningsgrav enligt typsektion T-201, se ritning T-201.4. Förbindelsepunkt (FP) 0,5 m utanför fastighetsgräns.5. Kantstöd av granit, rak/radie, visning 12 cm.6. Belysningsstolpe 6 m, armatur enligt E-ritning 401.010203040mSKALSTOCKTECKENFÖRKLARINGSpillvattenledning, nyDagvattenledning, nyVattenledning, nyServisledning S/D med FPNedstigningsbrunnDagvattenbrunnBelysningsstolpeBelysningskabel i skyddsrörKantstöd granitGångbanaPlanteringsyta, trädFastighetsgränsFÖRFRÅGNINGSUNDERLAGBESTÄLLAREÅLSTA KOMMUN · SAMHÄLLSBYGGNADSFÖRVALTNINGENKONSULTBergkvist & Lind Ingenjörer ABB&LPROJEKT / INNEHÅLLÅLSTA ÄNGAR ETAPP 2 – GATA OCH VAPLAN GATA, VA OCH BELYSNING · HAGTORNSGATAN 0/000–0/180UPPDRAGSNR24-1187DATUM2026-09-14SKALA1:400 (A2)HANDLÄGGAREJ. HolmqvistGRANSKADM. EkRITNINGSNUMMER101A-RITNING GATA/VAFormat A2 · 594 × 420 mmREV– 100%

Scale check

The drawing scale was checked against two dimensions that can be read independently of the title block, before any quantities were measured.

  1. Known dimensionCarriageway width, text "6,5" on TEXT-MÅTT16.25 mm→ 1 : 400.0
  2. Scale barSkalstock 0–40 m on the sheet100.00 mm→ 1 : 400.0
  3. Title blockStated scale and sheet size 594 × 420 mm1:400 (A2)matches
Scale confirmed: 1 mm on the sheet = 0.4 m on site.

6.5 m ÷ 16.25 mm = 0.400 m/mm → 1 : 400

Measurement rules

  • Lengths (m)Polyline length per layer, kerb radii included. Pipes from manhole centre to manhole centre, water main to the match lines.
  • Areas (m²)Closed polygons per layer, corner fillets at the junction included.
  • Counts (pcs)Block references per layer, checked against their labels.
  • Volumes (m³)T-201 section along each trench, with depths from the profile. Side and service trenches start at the main trench wall, so no volume is counted twice.

Drawing quantities against the MF

Selecting a row shows its geometry in the drawing. Deviation = (drawing − MF) ÷ MF.

within ±3%3–10%over 10%
AMA codeItemUnitDrawingMFDeviation

Drawing quantities for excavation and bedding use T-201 as written (slope 1:1, bottom width 1.8 m, bedding 0.15 m). The water main, PE 160, is measured on its layer but was not part of this comparison.

Trench volume, type section T-201

Typsektion T-201 A, common trench for sewer, storm water and water. Changing the slope or the station updates the volume and the trench outline in the drawing.

1 : 1.00
0/100 · depth 3.00 m
Section here–m² per metre
Excavation–m³ in total
vs MF 2,950–deviation

A = d · (b + n · d)  ·  V = Σ L · (A₁ + A₂) ÷ 2

Main trench 180.0 m, side trench 89.1 m and 13 service trenches 58.3 m (b = 1.0 m, d = 1.9 m). The MF volume is reached only at a slope of about 1 : 0.68.

Sources and method

Sources

  • A-ritning_gata_VA_101_FU.dwgTender drawing 101, plan of street, water and sewer and lighting, 16 CAD layers1 sheet, A2
  • Mängdförteckning_MF_anläggning.xlsxBill of quantities (MF), 11 items compared186 items
  • Typsektioner_ledningsgrav_T-201.pdfType sections for pipe trenches; T-201 A used for excavation and bedding3 pages
  • Teknisk beskrivning_AMA Anläggning 23.pdfTechnical description, measurement rules per AMA code64 pages

Method

  1. The 16 CAD layers of drawing 101 were read: polylines, closed polygons and blocks for manholes, gullies and lighting columns.
  2. The scale was checked against the 6,5 m carriageway dimension and the 0–40 m scale bar. Both give 1:400, as stated in the title block.
  3. Lengths, areas and counts were measured per layer. Trench and bedding volumes were calculated from type section T-201 and the depths along the profile.
  4. Each quantity was linked to its MF item by AMA code, and the deviation was computed as (drawing − MF) ÷ MF.
  5. Measured lengths and block counts were checked against the drawing labels: centreline 180.0 m = stations 0/000–0/180, 14 manhole blocks = SP1–SP7 and D1–D7, 9 columns = B1–B9.

Assumptions and limits

  • The excavation volume is based on type section T-201 A with side slope 1:1, bottom width 1.8 m and bedding 0.15 m. Service trenches use bottom width 1.0 m and depth 1.9 m.
  • Side and service trenches start at the main trench wall, so no volume is counted twice.
  • The water main, PE 160 (272 m), is measured but not part of the comparison. Footways, planting beds and street trees are not compared either.
  • Quantities are read from the CAD geometry of drawing 101 dated 2026-09-14. Check them against the digital drawing, and any later revision, before the tender is submitted.