PMBOK · cost control

Budget tracker

Approved budget vs forecast at completion vs actual to date. Variance reviewed monthly.
FDU-S2 · BT-M03 Month 3 · 2026-05-31
Project
Foreshore Drainage Upgrade · Stage 2
QS
M. Cole
Approved budget
$1,820,000 ex GST
As at
31 May 2026
% time elapsed
37%
$1.82m
Approved
$1.79m
Forecast at completion
$642k
Actual to date
+$28k
Forecast variance (under)
$58k
Contingency remaining
Spend curve

35% spent at 37% time.

Quick read

Slightly under the linear spend curve, consistent with the front-loaded preliminaries already booked. Forecast at completion (FAC) remains $28k under approved budget — see categories below for where the slack sits.

Cost categories
WBS Category Approved FAC Actual % spent Variance Status
1.0Preliminaries$180,000$182,000$165,50092%
−$2,000Tight
1.1Site establishment$54,000$54,000$53,80099%$0Closed
1.2Traffic management plan + traffic controllers$78,000$80,000$54,20068%−$2,000Ongoing
1.3Surveys + setting out$48,000$48,000$57,500120%
−$9,500Over
2.0Earthworks & trenching$420,000$405,000$148,20035%
+$15,000On track
2.1Excavation$220,000$210,000$82,40037%+$10,000On track
2.2Bedding + backfill$160,000$155,000$54,80034%+$5,000On track
2.3Disposal of spoil$40,000$40,000$11,00027%$0On track
3.0Drainage works$640,000$648,400$182,80029%
−$8,400Watch
3.1RCP supply (600mm)$280,000$280,000$82,00029%$0On track
3.2Pipe install labour$240,000$240,000$76,80032%$0On track
3.3Manholes + headwalls$120,000$128,400$24,00020%−$8,400 (RFI-018)Watch
4.0Reinstatement$280,000$272,000$00%+$8,000Not started
4.1Kerb + channel$140,000$135,000$00%+$5,000Not started
4.2Asphalt + line marking$95,000$92,000$00%+$3,000Not started
4.3Landscape reinstatement$45,000$45,000$00%$0Not started
5.0Professional fees$140,000$140,000$84,00060%$0On track
6.0Contingency$160,000$92,000$61,50038%
+$68,000 (drawn)Drawn
TOTAL$1,820,000$1,791,400$641,50035.2%+$28,600Under FAC
Variance notes
  1. 1.3 Surveys (−$9,500) — additional survey required after Stage 1 boundary discrepancy. Closed out via CR-02.
  2. 3.3 Manholes / headwalls (−$8,400) — flagged for potential pipe-diameter increase per RFI-018. Will move to CR-05 if confirmed.
  3. 2.0 Earthworks (+$15k) — favourable subcontractor rates locked in; treat as savings until Stage 3 procurement complete.
  4. 4.0 Reinstatement (+$8k) — preliminary supplier quotes 6% under estimate. Hold until Q3 confirmation.
Contingency hygiene

Contingency drawn so far $98k of $160k (61%). Remaining $62k flagged for: pipe diameter change (RFI-018, ~$11k), reinstatement scope variation (~$15k provisional), residual buffer (~$36k). PM to alert sponsor before next 20% draw.

Prepared by
M. Cole
Quantity Surveyor
Reviewed by
A. Lieblich
Project Manager