Twenty-Six Days Late: Rain Extension, Liquidated Damages and an Idle-Plant Claim
A civil package worth ₹4.20 crore (excluding GST) for a barrage approach channel was due for completion on 30 June. The work involved 7,500 m³ of concrete at a planned output of 25 m³/day using a 40-person crew. Over a 30-day stretch in May–June the actual output was 18 m³/day with the crew reduced to 34 persons, because the contractor had redeployed manpower to another site. Completion slipped by 26 calendar days. The contract provides liquidated damages at 0.5% of the contract value per week or part thereof of delay, capped at 5%. The contractor has claimed an extension of time citing 12 days of rain, and has separately claimed idle plant charges of ₹8,500 per day for the slip period. The department's own rain gauge in the colony recorded 41 mm on three days, 8 mm on four days and nothing on the remaining days; an IMD station 18 km away recorded higher figures.
1. Determine the admissible extension of time and the liquidated damages payable, showing each step.
Read the worked answer
Step 1 - examine the rain claim. The contractor cites 12 days, but the department's own gauge shows only 3 days with 41 mm, which is enough to stop concrete placement; 8 mm on four days would not normally stop work. Rain in late June at a barrage site is ordinary monsoon weather and is generally a risk the contractor carries unless the contract defines a specific abnormal-rainfall threshold on a long-term record. Admissible extension: at most 3 days, possibly nil if the contract places monsoon risk on the contractor. Using the more liberal 3 days is fair to the contractor and defensible on file.
Step 2 - net delay. 26 − 3 = 23 days.
Step 3 - LD period. 23 days = 3 weeks + 2 days. Under 'per week or part thereof', this is 4 weeks.
Step 4 - LD amount. 4 × 0.5% = 2.0% of ₹4.20 crore = ₹8,40,000. Check the cap: 5% = ₹21,00,000, so the levy is well within the ceiling.
Note the sensitivity: if no rain extension is allowed, the delay is 26 days = 4 weeks (part thereof), which is the same 4 weeks and the same amount - worth stating in the note so the conclusion does not hinge on a contestable 3-day point.
2. Evaluate the contractor's productivity position using the crew and output figures.
Read the worked answer
Planned productivity per man-day: 25/40 = 0.625 m³ per man-day.
Actual productivity per man-day: 18/34 = 0.529 m³ per man-day.
Output fell 28% (18 against 25) but crew strength fell only 15% (34 against 40). If the crew reduction alone explained the shortfall, output would have been 34 × 0.625 = 21.25 m³/day, not 18. The extra 3.25 m³/day gap, over the 30-day stretch, is about 98 m³ of output lost to inefficiency.
In man-days: planned effort for 30 days at 25 m³/day would be 750 m³; at the recorded productivity the contractor needed 750/0.529 ≈ 1,418 man-days against a planned 1,200 - roughly 18% more effort per cubic metre.
Conclusion: the shortfall cannot be attributed to rain, to the department, or even wholly to reduced crew. It is a direct consequence of the contractor's own decision to redeploy manpower to another site, and per-man productivity fell as well. Both the extension claim beyond 3 days and any argument that the department caused the delay fail on these figures.
3. State what records you would place on file and how the idle-plant claim should be disposed of.
Read the worked answer
Records to place on file:
- Daily site diary countersigned by the contractor's engineer, showing labour actually deployed, plant on site, hours worked and weather.
- Concrete pour register and batching records supporting the 18 m³/day figure.
- Muster rolls or attendance sheets evidencing the 34-person crew.
- Rainfall data from the department's own colony gauge, with the IMD record attached as corroboration but not as the primary basis, and the contract clause that defines admissible rain.
- The hindrance register and all correspondence, to establish whether any department-caused delay (drawing approval, land, power shutdown) overlaps the 26 days.
On the idle-plant claim: reject it. The claim rests on the premise that the plant was idle because of a department-caused delay; the record shows the delay was caused by the contractor's own redeployment of manpower. Beyond causation, the claim also lacks the two evidential foundations such claims need: proof that the plant was actually deployed and on site for those days, and idle certificates countersigned by the engineer at the time - not reconstructed afterwards. Furthermore, liquidated damages and idle-plant charges are alternative remedies for the same delay and cannot both be recovered by the party responsible for it.
Recommendation: levy LD of ₹8,40,000, grant an extension of 3 days at most (stating that the amount is unchanged even if refused), reject the idle-plant claim with the above reasons, and issue the reply citing the daily diaries and the productivity comparison rather than general assertions.