Revised Estimate in Civil Engineering

A revised estimate is a document prepared when the expenditure on the work exceeds or likely to exceed the amount of administrative sanction. In Civil Engineering, this document is important to ensure proper financial management and avoid any delays or legal issues.

Percentage Limit for Revised Estimate

The percentage limit for preparing a revised estimate is an important aspect to consider. It indicates the level of flexibility in the budget and the extent of deviation from the original plan. The correct answer for this question is option 'B', which means a revised estimate is prepared when the expenditure on the work exceeds or likely to exceed the amount of administrative sanction by more than 10%.

Reasons for Preparing Revised Estimate

There are various reasons why a revised estimate may be necessary in Civil Engineering projects, such as:

1. Change in Scope of Work: The original plan may not be sufficient to cover all the requirements of the project, and additional work may be required. This can lead to an increase in the budget and the need for a revised estimate.

2. Increase in Material and Labor Costs: The price of materials and labor can fluctuate over time, and this can affect the budget of the project. If the costs increase significantly, a revised estimate may be necessary.

3. Unforeseen Circumstances: Sometimes, unexpected events can occur during the project that can impact the budget. For example, if there is damage to existing structures or utilities during excavation, additional work may be required, leading to a revised estimate.

4. Errors in Original Estimate: Sometimes, the original estimate may have errors or omissions that were not identified until the project was underway. In such cases, a revised estimate may be necessary to correct the budget.

Conclusion

In conclusion, a revised estimate is an important document in Civil Engineering that helps to manage the budget of a project. The percentage limit for preparing a revised estimate is 10%, and it is necessary when the expenditure on the work exceeds or likely to exceed the amount of administrative sanction. There are various reasons why a revised estimate may be necessary, such as change in scope of work, increase in material and labor costs, unforeseen circumstances, and errors in original estimate.