This document discusses the process of preparing maintenance and repair estimates. It involves 4 key steps: 1) preparing detailed estimates of the required work, materials, and units, 2) calculating the rate for each unit of work, 3) preparing an abstract of the total estimates, and 4) finalizing the estimates at the appropriate approval level. The estimates provide an idea of the total cost of the work and feasibility given available funds, as well as the estimated time needed for completion.

1. • Preparation of M&R Estimates :- to economize the
cost
• Assessment of the fund required to execute a certain
work or project .
• Speed up operation of the work under taken with
due monitoring and timely execution of work to be
carried out .
• In this context estimation or preparation of estimate
involves following steps –
• Preparing detailed estimates .
• Calculating rate of each unit of work .
• Preparing abstract of the whole estimates .
• Finalizing the estimates at competent level .

2. S.
No
.
Name &
type of
works (
in brief)
Percentage of
A.R
Useful
life in
years
Percenta
ge of
deprecia
tion
Remarks

3. S.No. Items/d
etails of
work
Q. Unit Amount Remarks
#. IS-1200 measurement & Record –
Earnest money = 2.5% of estimated cost of work (forfeited on
default) .
Security deposit = 2% of contract (Sign) Amt (Refunded on
successful completion) = 6 months (+) specified date of completion .

4. Closing of Estimates/Evaluation :- #. Prel. estimate .
#. Detailed estimates .
#. Abstract .
PWD manual of orders .
PWD ‘estimator software’ – online module
Digitization
Real time status on dashboard .
Close monitoring through drones/satellites .
Eg. Vishwakarana, chanakya, shishti, sentinel etc .
e-office system ( 1ST JAN 2023) .
Estimates give an idea of the cost of the work and its feasibility as per fund available .
Estimates gives an idea of time requirement for completion of project .
Evaluation of estimates should be done in such a manner that during execution of work
the proposed plan expenditure matches to the available fund . if it matches than estimates
are finalized .

5. Revised estimates –
Rates of material/labour cost exceeds by more than 10% .
Location/specification of material consumed as per site changes .
Certificate –
The estimates amount of the rupees -------
Has been submitted for sanction and allotment of the fund .
Enclosure –
Survey plan/L-section of proposed M&R (enclosed) .
Index plan showing alignment (enclosed) .

6. Depreciation
Depreciatable cost of the asset divided by useful
life at the end of utility, scrap value is left .
method of depreciation are as below –
Straight line method
Constant percentage method
Sinking fund method
Quantity servey method
D = (original cost of asset – scrap value)/useful life of in years
Where D is ‘depreciation’ .
Contract
Type of contract are as below –
Item rate contract
Percentage rate contract
Lumpsum contract
Material supply contract

7. THANK YOU