| 13 | Unrealistic Planning Inadequate pre-contract planning resulting in increased scope of effort and extensive as-planned data | Contractors | 35 | 36.71 | 1285 |
| Consultants | 25 | 42.60 | 545 | ||
| Total | 60 | ||||
| 14 | Unforeseen Site Conditions The difficulty in taking physical measurement under inclement weather. | Contractors | 35 | 36.23 | 1268 |
| Consultants | 25 | 22.48 | 562 | ||
| Total | 60 | ||||
| 15 | Extension of Time Measurements related to time are muddled when time changes. | Contractors | 35 | 30.30 | 1060.5 |
| Consultants | 25 | 30.78 | 769.5 | ||
| Total | 60 | ||||
| 16 | Delays and Disruptions Progress measurement becomes distorted whenever work is interrupted and prolonged reports also delay decision making process. | Contractors | 35 | 27.41 | 959.5 |
| Consultants | 25 | 34.82 | 870.5 | ||
| Total | 60 |