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NREGA Technical Aspects Of Execution Of Works S.Anwar HussaIn
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Objectives of NREGS
•• To provide not less than 100 days of To provide not less than 100 days of
Guaranteed Employment in a financial Guaranteed Employment in a financial
year to every house hold year to every house hold
•• Creation and maintenance of Creation and maintenance of
durable assetsdurable assets
•• Efforts should be made to utilize Efforts should be made to utilize
local materials and cost effective local materials and cost effective
and disaster resistant technology and disaster resistant technology
developed by various institutions developed by various institutions
and as applicable to the area.and as applicable to the area.
Emphasis while creating Emphasis while creating Rural InfrastructureRural Infrastructure
• Labour intensive works
• Material component not to exceed 40% of the estimate cost.
• Material component include wages of skilled/semi- skilled workers
Type of works under the Type of works under the scheme in the order of priorityscheme in the order of priority
• Water conservation and Water harvesting
• Drought proofing (Afforestation and tree plantation)
• Irrigation canals
• Provision of irrigation facility to land owned by SC/ST/beneficiaries under Indira Aawas Yojana
• Renovation of traditional water bodies
Type of works …Type of works …
• Desilting of tanks
• Land development
• Flood control and protection works including drainage in water logged areas
• Rural connectivity to provide all weather access
• Other works notified by the Central/State Government
Water conservation and Water Water conservation and Water harvestingharvesting
�Earthen Bund
�Stone Bund
�Continuous Contour Trench
�Water Absorption Trench
�Loose Boulder Structure
�Earthen gully Plug
�Gabions
�Farm pond
�Sunken Pond
�Check dam
�Mini Percolation tank
�Percolation tank
�Diversion Drain
�Feeder channel
�Sub surface Dam
�Staggered Trench
Drought proofing (Drought proofing (AfforestationAfforestationand tree plantation)and tree plantation)
�Pasture Development
�Block Plantation
�Horticulture plantation
�Barren Hill Plantation
�Avenue Plantation
Irrigation canalsIrrigation canals
�Feeder Channel
�Diversion Drain
�Pick up Anicut
�Supply Channel
�Open wells
�Field Channels
�Main canal
�Distributory Canals
� Lift Irrigation
Renovation of traditional Renovation of traditional water bodieswater bodies
�Desilting of tanks
�Repairs to tanks
�Rehabilitation of MI source
Land developmentLand development
�Earthern Bund
�Stone Bund
�Loose Bolder Structure
�Earthen gully plugging
�Land leveling
�Stone terracing
�Boulder removal
�Pebble Bunding
Flood control and protection Flood control and protection works including drainage in works including drainage in
water logged areas water logged areas
�Drains in the open field
�Filling the low lying areas
�Revetment to bunds
�Diversion drains in meandering streams
Rural connectivity to Rural connectivity to provide all weather accessprovide all weather access
• Roads can be taken up as last priority not exceeding 10% value of all types of works taken up.
�Earthen Roads
�WBM Roads
Preparation of ProjectsPreparation of Projects
• Detailed Investigation
• Preparation of1.Detailed Estimate
2.Conveyance Statement
3.Data
4.Location Map and Site Plan
5.Other Drawings, if any
6.Estimate Report
7.Other Tables
Detailed InvestigationDetailed Investigation
• Estimate to be prepared in the presence and after discussion with the local people
• Location plan to be sketched immediately on arrival at the site
• Site plan to be sketched
• Lorry approach and head load to be noted
• Nature of soil to be noted (whether OS, HS, OR, etc.
……contdcontd
• Sources of materials
• Level of GWT to be ascertained with the help of local people
• Requirement of water for irrigation and no. of days for irrigation
• Specific problems and their solutions through rural appraisal
Preparation of Detailed Preparation of Detailed EstimateEstimate
• Based on structural design
• Items to be identified first
• Quantities to be worked out
Conveyance StatementConveyance Statement
211.9024.70187.20187.205Bitumen10
176.6050.10126.50126.505Gravelly earth9
655.2550.10605.158.40168.3562
Crushed broken stone below
22mm8
349.8024.40325.407.50137.9035Timber scantlings7
211.9024.70187.20187.205Cement, MS rod6
304.8024.40280.407.50137.9029Surkhi, lime5
511.1567.45443.7011.40227.1029
Wire cut bricks, roofing tiles
and flooring tiles4
442.7567.45375.3011.40227.1023Bricks3
369.6550.10319.558.40168.3528Sand2
401.5068.90332.6012.20271.6015Rubble and broken stone1
TotalHLTotal LL
addlkm1st 10 kmLL, kmDescription
Sl. No.
Based on Taluk Conveyance approved by the Chief Engineer
Conveyance CertificateConveyance Certificate
• Regarding conveyance charges for materials, a certificate as noted below, from an officer not below the rank of an Assistant Engineer, should be attached with all estimates.
“The distances noted in the data for conveyance from quarry or source have been personally verified by me and are found correct. These are the minimum leads required.”
Preparation of DATA based on Preparation of DATA based on
• Schedule of Rates
• NREG minimum rate
• Market Rates
• Forest SOR
• Rates of Agricultural Department
• Observation (Observed DATA)
• Soil Conservation Data
Abstract of EstimateAbstract of Estimate• Provision of Hire Charges for T & P• Provision for Work Site Facilities• Safe drinking water• Shade for children and periods of rest• First-aid Box for emergency treatment and
minor injuries• Health hazards connected with work to be
provided• One woman worker to look after five or
more children below the age of six years Deputed woman shall be paid wage rate
Location Map and Site PlanLocation Map and Site Plan
• Location Map and Site Plan to accompany every estimate
• Direction to be noted
• Land mark to be noted
• A third person should be able to locate the site by seeing the map
Other TablesOther Tables
• Schedule showing Skilled/ Unskilled Labourers for Each and Every Item
• Total no. of skilled/semi skilled/unskilled labourers
• Percentage of Labour and Material
• Programme chart showing the number of days and number of labourers and
• Quantities of different materials for each period
……contdcontd
0.25*C8*C3*C6*(C8+C7)C112036.3Resisting moment, Mr =
1.5*C9C102000Overturning Moment adding 50% extra
for unexpected eventuality
C5*(C3+C4)^3/6C91333.3Overturning Moment, Mo =
C81.2Bottom width, b =
0.55*((SQRT(C3)+SQRT(C4)))C71.0625Width of crest, a =
C62000Density of material of weir, wd
=
C51000Density of water, w =
C40.5Height of shutter, S =
C31.5Height of weir, H =
Design of Weir
Detailed EstimateDetailed Estimate
m32.1Say
2.0250.31.54.51Loose deposited earth
Earth work excavation in ordinary soil with all lead and lift etc. complete including breaking clod, ramming, watering etc.
4
Nos.44
Bailing out water by engaging man-mazdoors(For 2 days per anicut @2persons ie. 2x2=4 persons)
3
m4.54.51
Putting up ring bund with sand filled bags in two metres in height including filling with hard earth cut and conveyed from outside including dismantling after copletion of work.
2
m2350Total
1751.75502Side
1753.5501Base
Clearing grass and other overgrowth of vegetation and small trees of girth up to 30 cm including rooting out and removal of rubbish up to a distance of 150 m out side the periphery of the area cleared.
1
QuantityDBLNo
.Description of itemsIt.No.
……contdcontd
m3735Say
7350.33.57001Desilting the thodu
Earth work excavation in all classes of soil for desilting the thodu and dumping away the earth far away in order to avoid re-entry of the soil into the thodu.
7
m311.9Say
11.8125Total
7.76251.51.154.51Super structure
4.050.61.54.51Foundation
Construction of the anicut using picked up stones conveying and placing in position and neatly completed as directed by the field staff.
6
m34.1Say
4.050.61.54.51Foundation
Earth work excavation in hard soil except hard rock(which requires blasting) and using the spoil for filling the lower portion including all lead and lifts.
5
Technical SanctionTechnical Sanction
Authority issuing TS shall be satisfiedAuthority issuing TS shall be satisfied
1)1) about the Structural Safetyabout the Structural Safety
2)2) that the quantities provided are enough that the quantities provided are enough
to complete the workto complete the work
3)3) that the items are as per specificationthat the items are as per specification
4)4) that the rates are reasonablethat the rates are reasonable
5)5) that the TS amount is within AS amountthat the TS amount is within AS amount
““TS issuing authority may visit the site, if TS issuing authority may visit the site, if
necessary, before according TS”necessary, before according TS”
……contdcontdThe TS issuing authority shall verify that every project proposal contains
1.AS2.Estimate Report3.Detailed Estimate4.Data 5.Abstract of Estimate6.Conveyance Statement7.Location Map and Site Plan8.Structural Drawings, if any9.Other Tables
Technical Sanction to be issued by Technical Sanction to be issued by TS CommitteeTS Committee
GO(Rt)NoGO(Rt)No. 2107/2006/LSGD dt.26.08.2006. 2107/2006/LSGD dt.26.08.2006
GLTCGLTC
• TS Committee to contain Chairman, Convenor and Members
• Chairman- LSGD Assistant Engineer
• Convenor-Accredited Assistant Engineer
Technical Sanction PowerTechnical Sanction Power
• By GLTC for works uptoRs.3,00,000/-
• By BLTC for works beyond Rs.3,00,000/-
A new work under the Scheme shall be commenced only if;-
a) at least fifty labourers become available for such work; and
b) the labourers cannot be absorbed in the ongoing works;
A period of employment shall ordinarily be at least fourteen days continuously with not more than six days in a week.
�Risk up to 15 years after retirement
�Do not erase/tamper measurements
�No over writing
�Measurements can be scored
�Measurements shall be easily traceable at site
�Page Certificate
�Date
Level Field BookLevel Field Book
�Issued
�Page Certificate
�Name of Officer taking Levels/Check Levels
�Date
�TBM
�Closed at Starting TBM
FORMSFORMSKPW FORM 21- Measurement Book
KPW FORM 22- First and Final
KPW FORM 23- Running Account Bill
KPW FORM 24- Hand Receipt
Technical Management of Technical Management of Works in NREGSWorks in NREGS
• Selection of Workers
• Meeting of the workers and Awareness Class on the nature of work, cost of work, out turn of each work per day and wage rate and unit rate
• Awareness Class to the Kudumbasree ADS (Area Development Societies) Volunteer
• Role of Kudumbasree ADS volunteer
• Discussion with Agricultural Labourers and Agriculturists to chalk out the programmewithout affecting the routine agriculture activity
In the meeting with workers explainIn the meeting with workers explain
• explain the provisions of the Act
• the system of payment of wages
• SOR
• information on worksite facilities
• entitlements in the event of their injury by accidents or death or injury or death of any child accompanying the worker
• that no discrimination in payment of wages will be done only on the basis of gender
Responsibilities of Technical StaffResponsibilities of Technical Staff• See that the Estimates are displayed at
site• Supervision of Overseer/Assistant Engineer
daily• Supervision of Assistant Executive
Engineers once in a week• Weekly measurements/check
measurements
•• Measurements in the presence of a Measurements in the presence of a group of workersgroup of workers
• Worksite management - Work out turn and wages
• Part bill every fortnightly
Measurements/Check Measurements/Check measurementsmeasurements
• For work costing upto Rs.50,000/-Measurement and preparation of bill-OverseersCheck measurement- Assistant Engineers
• For work costing more than Rs.50,000/-Measurement and preparation of bill-Assistant EngineersCheck measurement- Assistant Executive Engineers
Muster roll Muster roll
• Muster roll Maintenance/verification
• One Muster Roll for 25 to 50 persons for 14 days period
• Period of Muster Roll, name of work and name of Grama Panchayat on top
Muster rollMuster roll
• Custody and maintenance of Muster Roll
- Issue/receipt of Muster Roll
through Muster Roll register
- by Kudumbasree ADS Volunteer
- attendance to be marked at 9 am
and 4 pm
- total no. of workers should be
shown at the bottom on each day
Muster rollMuster roll
• on the 14th day evening or after completion of the work, Muster Roll to be closed and abstract prepared (skilled, unskilled, men women, SC/ST etc. to be shown at the bottom)
• Muster Roll to be returned to the GP Secretary
• Muster Roll to be cross checked with bills
• Verification of Muster Rolls and attendance by Overseers/AE/AEE/Block Program Officer/GP Secretary
Pre measurements for Pre measurements for
� Jungle Clearance, Foundation, Reinforcement, Stack Measurements, etc.
�Depth/size/initial levels of existing tank/well/canal before improvement
� Initial levels of the existing ground before land development
� Level measurements for earth work for more than 600m3/km
�Verification certificate after completion of the pre measured items