NREGANREGA

Technical Aspects of Technical Aspects of Execution of WorksExecution of Works

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

Gully PluggingGully Plugging

Continuous contour Continuous contour

Loose Boulder Structure Loose Boulder Structure

Wire gabion structure Wire gabion structure

GabionGabion

Check Dam with locally Check Dam with locally available materialsavailable materials

Earthen bundEarthen bund

Stone BundStone Bund

Water Absorption TrenchWater Absorption Trench

Percolation TankPercolation Tank

Mini Percolation TankMini Percolation Tank

Sub Surface damsSub Surface dams

Sub Surface Dam…Sub Surface Dam…contdcontd

Preparation of ProjectsPreparation of Projects

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

Structural Design

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

Rate as approved by DCRate as approved by DC(Add for HL, if required)(Add for HL, if required)

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

Estimate reportEstimate report

1.Explain the necessity of work

2.Benefits

3.Labour Component

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

Construction of Check Dams and Improvements to Thodu

Sample EstimateSample Estimate-- Structural Design Structural Design

……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

DATADATA

……contdcontd

……contdcontd

ABSTRACT OF ESTIMATEABSTRACT OF ESTIMATE

……contdcontd

……contdcontd

Schedule of Schedule of LabourersLabourers

……contdcontdUnsk/Skil/MateUnsk/Skil/Mate

……contdcontd

Another Sample Estimate

Schedule of Schedule of labourerslabourers

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/-

•Peoples’ Estimate

•Local Language for Estimates

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.

Measurement BookMeasurement Book

�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

Documentation before and after Documentation before and after

the workthe work

The services staff connected with NREGA can be audited for quality of service.

NREGANREGA