GOVERNMENTOFANDHRAPRADESH Office of the Commissioner, Rural Development, A.P., Hyderabad

2"d, Floor HUDA Hermitage Office Complex, Adarshnagar, Hyderabad-4

Circular RC No.1338/EGS/DEE(SS)!2011 dt. 03.01.2012 Sub: MGNREGS AP- Comprehensive Development of SC/ST Colonies - Technical

Guidelines for implementation of the project- Communicated- Regarding. Ref: 1) GO Ms.No. 389,PR & RD (RD II) Dept Dt 9.12.2011.

2) Minutes of the review meeting by the Hon'ble MoRD Dt 22.12.2011 3) T.O Circular Memo No. 1338/EGS/DEE(SS)/2011 dt. 27.12.2011

******

The Govt. vide reference cited have issued orders duly sanctioning the project for "Comprehensive Development of SC/ST Colonies" under MGNREGS to improve the general quality of life in the most backward areas by providing sanitation facilities and provision of internal roads and side drains to the colonies.

The Technical guidelines for implementation of the project are given here under:

~ After identification of the project as per the guidelines issued, in the reference 3rd cited the EEs, PRED I TWED and EEs, RWS & S shall implement the project. ~ Coverage of work: The following facilities are to be provided for the identified SC/ST

Colonies in the three GramPanchayats of the Mandai. A) Provision of individual Sanitation Latrines for all households which are not having ISLs on a

Saturation basis. They should see that sanction in available for JSLs in all Colonies where NREGS Programme is taken up. Anganwadi Toilets are also to be taken up if already sanctioned. This will be in convergence with Total Sanction Campaign ofRWS dept.

B) CC Roads with drainage facilities

C) Provision of individual Sanitation Latrines & Aagaawadi Toilets for all household which are not having ISLs on a Saturation basis~ -A~i TO; !12 t1.

i) The RWS &S Dept. will be the implementing agency for giving the technical assistance and supervision of the work.

ii) The layout (Sketch) of the colony with details of ISLs required for the colony/habitation inhabitants, duly marking the houses and Augauwadi toilets sanctioned under TSC component should be prepared for each colony and made available with the GP.

iii)After approval of the work by Gram Panchayat, the RWS&S Dept. Engineers shall prepare the estimates for ISLs and Anganwadi toilets component of the project for all the SC/ST Colonies in the identified GPs.

iv) Each SC & ST locality/colony I habitation should be treated as an individual project and estimates shall be prepared separately.

v) Technical approval should be given by the competent authority and submit to the District Collector & Chairman, DWSC through PDs DWMA for issue of administrative sanction.

vi) The District Collector/DPC shall issue administrative sanction duly following the provisions of the NREGA based on the technically approved estimates.

vii) The technical sanction for these works will be issued by the concerned authority under RWS Department as per the norms/powers delegated.

viii) Specifications:

The designs should adhere to the guidelines issued by Ministry of Drinking Water & Sanitation, Govt. of India, local design variations depending upon the Geo climatic conditions and the availability of construction material and skilled labour shall also follow the guidelines of Ministry of Drinking Water & Sanitation.

ix) Execution: For all ISL's the beneficiary will be the unskilled labourer as well as WEM.

Anganwadi Toilets: Same WEM appointed for C.C.Roads & drains by the Gram Panchayati will take up the work.

AE/AEE of RWS Department will be responsible for the implementation and measurement of the work. The Dy.EE of RWS Department shall check measure the work and payments may be made through the existing Mandai Computer Centers as is being done for NREGS works.

x) Mode of Expenditure:

Tite Expendltme for the construction uf Sanitation fadlities be maue (t:Qm fuuus under MGNREG Act and through Muster roll as per NREGS process for'tollowing items of work.

Out of the total estimate amount, an amount not exceeding Rs.1300/- should be incurred for ISLs from MGNREGS funds. Out of this Rs.750/-(Wage Component) to be incurred for unskilled labour covered under Job Card Holders & balance Rs.550/- (material component) can be for skilled labour. Since the beneficiary himself do the unskilled labour works, the entire amount will ~o to him.

Out of the total estimate amount, an amount not exceeding Rs.2000/- should be incurred for Anganwadi Toilets from MGNREGS funds. Out of this Rs.l250/-(Wage Component) to be incurred for unskilled labour covered under Job Card Holders & balance Rs.750/- (material component) can be for skilled labour.

The amount will be released after completion of the ISL/ Anganwadi Toilet.

For the part to be covered under wage component of MGNREGS, the cost norms would be as per the Rural State Schedule of rates as applicable to MGNREGS works.

xi) Monitoring: District Level: Superintending Engineer RWS&S Dept

State Level: PD, SWSM will monitor the progress of works for the part to be covered under TSC and report it to CE, PRED for compilation

The CE (PR) will monitor the overall project

B) Provision of Internal Roads and side drains:

i) The PRED will be the implementing agency for giving the technical assistance and supervision of the work.

ii) The layout (Sketch) of the colony with details of internal roads and drainage proposed along the road on one side/two sides depending on the local conditions existing should be prepared for each colony and made available with the GP.

iii) The PRED & TWED Engineers shall prepare the estimates for CC Road & side drain component of the project for all the SC/ST Colonies in the identified GPs.

iv) Each SC & ST locality/colony I habitation should be treated as an individual project and estimates shall be prepared separately. Technical approval should be given by the competent authority and submit to the District Collector/DPC for administrative sanction through PD DWMA.

v) The District Collector/DPC shall issue administrative sanction duly following the provisions of the NREGA based on the technically approved estimates.

vi) AE/ ABE, PR department will look into implementation and measure the work. The Deputy Executive Engineer, PR shall check measure the work.

vii) Specifications :

1. Internal Roads: The width of the internal road with CC carpeting should not be more than 2.5m as

per GOI circular No. J-1106011/2011-MGNREGA-I dt. 18.10.2011. Internal roads with in the village /colony/habitation should be taken up with

proper drainage arrangement. The thickness of the CC road shall he limited to 5". The balance width of the internal road over and above 2.5m of CC formation shall

be provided with WBM grade-II standards to facilitate smooth drain off of rain water.

2. Side drains: Wherever land width available is more than 5m , side drains shall be provided on

both the sides of the roadfos shown in the enclosed typical sketch. However, depending on the local conditions, if houses are situated only one side of the road, drains would be taken up only that side of the road.

Where the land width is less than 5m, provision of drains may be decided depending on the local conditions by the District Collector.

Depending on the discharge calculations, with an assumed flow velocity of 0.5m/sec, the 3 enclosed drain sections may be adopted.

For a discharge up to 0.01875m3/sec - section -II discharge up to 0.021875m3/sec -section -III discharge up to 0.04m3/sec - section -IV

The discharge calculations should be based on the following parameters: ../ The length of the road ../ No. ofhouses in a Street ../ Whether the drainage proposed on one side or two sides of the road to assess the

household discharge ../ Maximum rain falls of the location/district to assess the rainfall discharge in the

street. If the drains proposed in two sides of the road, the rainfall discharge can be taken as half of rainfall discharge .

../ Runoff discharge coming from probable catchment area in to the particular street has to be observed and the same has to be taken into consideration while fixing the drain section .

../ Model calculation is herewith enclosed.

Slope of drain should invariably be maintained@ 1:200 to 1: 250

viii) Mode of execution and payment: Payments will be made through the eFMS by the existing District Computer Centres

(DCC) of PRED Department to the WEM account to the extent of skilled labour and material component. Wage payments shall be paid to the wage seekers account directly.

The payment of unskilled and skilled labour worked under MGNREGS will be made only after measurement is taken and assessment of the work made with respect to task and duly cnlcrcd Muslcr roll and mcusurcmcnl buuk by tl11..~ AE/AEE. Puyments will be made through the existing District Computer Centres of PRED Department.

Wage payments will be through the paying agencies oflabourers in MGNREGS only.

,)

ix) Monitoring:

District Level: Executive Engineers of PRED and the existing DCC's (PR) will implement and monitor.

State Level: The CE (PR) will monitor the overall project

To

Sd/- R. Kondal Rao Technical Advisor(RD)

The District Collectors and District Programme Coordinators, MGNREGS-AP of 22 Districts. The Project Director, DWMA and Additional District Programme Coordinator, MGNREGS-AP of 22 districts. All The Project Officers of ITDA. All the Superintending Engineers, PRED. All the Superintending Engineers, TWED All the Superintending Engineers, RWSSD Copy to The Director, MGNREGS-AP, 0/o Commissioner, RD, Hyderabad. The Special Officers, RD The Chief Quality Officer, MGNREGS The Chief Vigilance Officer, RD The Director, SSAAT. The Technical Advisor, RD The Commissioner, Panchayat Raj, A.P. Hyderabad. The Engineer- in- Chief, Panchayat Raj, A.P. Hyderabad The Engineer- in- Chief, RWSS, A.P. Hyderabad The Chief Engineer, Panchayat Raj, NREGS Department. The Project Director, SWSM, SRTGN Bhavan, Errumanzil Colony A.P, Hyd. The Commissioner, Tribal welfare, AP, Hyderabad. The Engineer-in-Chief, Tribal Welfare, A.P., Hyderabad The web Manager, RD to place to web site. Mr.Ravi Marri, Project Manager, TCS for necessary software changes.

I I Attested/ I

~~\1/

An example of design calculations for assessment of the drain section is given here under for guidance and the field engineers are requested to estimate actual requirement accordingly.

Case I : If Road width is equal to more than Sm. then propose drains on two sides of the road:

i) Household Discharge : Assume length of the road: 500'

Assume average width of the House: 30'

No. of houses in the street: 500/30= 16 houses

Population @ 5 per house: 16XS=80 (say) 100 Discharge per day : lOOXlOOX 0.8 = 8000iit/day (assuming 80% as drain off) Assuming 12hours of usage discharge per minute for 100 persons is: 8000/(12 x 60)= ll.lllit/min

Assuming Peak Factor as 3

Maximum household discharge= 3 x 11.11= 33.33lit/min = 33.33/{1000 x 60) =O.OOOSScum/sec ---- (i)

ii) Maximum Rainfall Discharge: Road Length = 500' = 500x0.3048 =152m

Width of the Road = 7 .sam

Area= 152 x 7.5 = 1140sq.m

Discharge 0. = RAP/36;

Where R = Intensity of Maximum Rainfall in cm/hr (take the maximum rainfall details from the concerned department for that particular locality/ district); A= Drainage area in hectares;

P = Impervious factor;

Assume R = 63mm/hr =6.3cm/hr;

A= 1140sq.m = 1140/1000 = 0.114hectares;

p = 0.60

Q = RAP/36 = (6.3x 0.114 x0.60)/36 = 0.01197cum/sec Maximum Rainfall Discharge that has to be taken into consideration when drain is provided on both sides of the road = 0.01197/2 = 0.005985cum/sec ------ (ii)

iii) Runoff Discharge from Upland Catchment:

Assume a rainfall runoff of 1sqkm area from outside;

Discharge Q = RAP/36; R = 6.3cm/hr;

A= 6000sq.m = 6,000/10000 = 0.60hectares;

p = 0.60

Q = 6.3x0.60x0.60/36 = 0.063cum/sec

Discharge in one drain = Q = 0.063/2 = 0.0315cum/sec----- (iii) Total Discharge = House Hold Discharge + Maximum Rain Fall Discharge + Runoff

Discharge

= (i) + (ii) + (iii) = 0.00055+0.005985+0.0315 =0.038cum/sec

Allow velocity of flow as 0.50m/sec;

Area of drainage required = Q/V = 0.038/0.50

=0.076sqm

Adopt Section IV whose area is 0.080sqm > 0.076sqm.

7

x) Details of Area of Typical Drain Sections approved by this office: (Enclosed)

Section -I

Area= ((10+15)/2) x20 = 250sq.cm = 0.025sqm Discharge: 0.0125m3/sec

Section -II

Area= ((10+20)/2) x25 = 375sqcm = 0.0375sqm Section - Ill

Area= ((10+25)/2) x25 = 437.50sqcm = 0.04375sqm

Section-IV

Area= ((10+30)/2) x40 = 800sqcm = 0.080sqm

G\"J ..

l-100 MJJl--1 -200 MM ~-. 1 15'9 MM-1

HOUSE SIDE PVC PIPE 75MM

300 MM

I I 100 MM I

I

230MM 230 MM

tar. . ...

. ~ .

- .b.

bi. ~

59 11M

I cc (M15) 1~- b.,

- .

I

23:0~MM .. I

N.B: The S.E is permitted to change the Section as per local

\

ROAD stee

.. I.= . 230

MM

..

le

CC (M15). / requirement GRADED 20MM TO

SAND CUSHION (O.R )COARSE ..___ __ ---~.-_STONE DUST CUSHION IN BC SOIL

12MM metal ONLY (CEMENT-250Kgs)

CROSS SECTION: OF THE DRAIN - 2 . . ,

"'

HOUSE SlOE PVC PIPE 75MM -

300 MM

100MM

230MM

CC (M15), GRADED 20MM TO 12MM metal

230 MM

l-100 MM--1 250 1\tiM: 4~a.uu,-J

. -... , ...

ti.

I

ROAD SIDE

t!..

t., b1--

.. , =

SfJMM

I CC tM1&) flHl-MII

b..

.280 MM

. ... . ...

.. I

230MM I

N~S: The S.E is,permitt-edto change the S'eetion as per lo'cal requirement -- -

\

..

I

\ I SAND CUSHION {OR )COARSE STONE-DUST .CUSHION IN BC SQIL

ONLY {CEMENT-250Kgs) _ _ _ . __

CROR SECTION OF THE DRAfN - 3 NOTTO SCALE ,.

'..,; :: ... -

~100 --t 3001VIM: . I. f50:MM'-I I VIii ~o.\ ./ ... ~ I:IX,AD I -,

HOUSE SIDE PVC PJPE 75MM

450MM

100 MM

230 MM

CC {M15). GRADED 20MM TO 12MM metal (CEMENT-250Kgs)

SIDE

~,__-_,_L...-_,..._~.,r~...,.,_..., . -.-~r. .,;co~ ...... ,

t:..

b.

'

.. ~ .b..

. ~ . b.'. -780

'MM

230j MM l

I &OMM I

h.

-

..

. I 100MJI

2lOJD1

I

N.B: The S.E is permitted to change the Section as per local requirement

\

:. .; .;-

a=.

. .

I

SAND CUSHION {OR )COARSE ..___ __ ,..~.___STONE DUST CUSHION IN BC SOIL

ONLY

CROSS SECTION o~F THE DRAIR - 4 NOTTOSCALE

___...

r

..,-