Civil work

NAME OF WORK :- CONSTRUCTION OF 3.00 LAC LITER CAPACITY SUMP AT CHIKHLI PETAPARA, UNDER VYVASAI VERA GRANT YEAR:- 2022-23 TO 2025-

26, AT:- KHEDBRAHMA

MEMORANDUM SHOWING THE DETAILS OF ITEM OF WORK TO BE CARRIED OUT

estimated Approved

IT according to

but may be Description Unit Rate with 1%

more or L.W Cess Rs.

1 1.00 RCC UG Sump 3.00 lacs lit capacity Nos 1112730.46

Preparing structural design of RCC Under Ground / Partially under ground / above high ground level Reservoir of required capacity

as per relevant I.S.S and constructing thesame, including excavation in all types of soil strata (including rock) including shoring

strutting if required, for loose soil / to protect from collapse due to near by traffic load,casting 100 mm thick P.C.C. leveling course

in M-10, Refilling the pit with proper soil and disposing of the surplus stuff within a lead of 50 meters. Including cement plaster in

CM 1:2 with approved water proofing compound to inside water touching surface to container. Including all types of labour and

material charges of lowering, laying, erecting / hosting and jointing of pipe assembly to inlet, outlet overflow, washout and bye

pass arrangement as per hydraulic design. Providing and fixing accessories like MS / GI Ladder, CI Manhole frame and cover,water

level indicator, adequate cowl type ventilators or lantern type ventilator withstainless steel jail.

B.B. Masonry chambers for valves. Providing and applying three coats of cement paint /snowcem to the out side face of structure.

It also includes satisfactory water tightness test as per relevant I.S. code and painting name of scheme and capacity on the tank as

per direction of engineer in charge.

List of Indian Standards for design of GSR/Sump The structural design of GSR shall be in accordance with provisions relevant I.S.

(1) I.S. 3370 part I & II 2009 or latest revised

(1.1) I.S. 3370 part III & IV 1965 or latest revised

(2) I.S. 456 – 2000 or latest revised.

(3) I.S. 1893 – 2000 – 1984 or latest revised.

(4) I.S. 875, Part – 1 to 3, 1987 or latest revised

General Specification

(1) Water depth in container shall be adopted as per data of tender. If water depth is not specified the suitable water depth /

acceptable to field engineer in accordance with hydraulic requirement shall be adopted for capacity.

(2) Shape of container (in plan) specified by in data shall be adopted in absence circular shape shall be adopted.

(3) Size shall be fixed as per availability of space (land area) at site / acceptable engineer in charge.

(4) Effect of overlapping of pressure bulbs on soil due near by structure and proposed sump should be considered

(5) Care shall be taken that no damage should occur to nearby existing structure. Compensation shall be paid for the same by

(6) The minimum concrete grade for RCC shall be M-30

(7) HYSD Fe 415 / 500 grade reinforcing bars confirming to I.S. 1786 / 1139 shall be considered in design. CRS / TMT bars shall be

provided. In saline atmosphere corrosion resistance tainless steel / HCR rebar shall be provided. Any other steel can be used with

approval of C.E./ in situation of non availability in market without extra cost.

(8) Minimum size (or thickness) of various components shall be provided as per tender criteria / specifications in absence as per

I.S./ Std. practice of G.W.S.S.B. Minimum dim ensions specified for various components in tender data / ecifications shall be

provided without fail.

(9) The safe bearing capacity (SBC) shall be referred from SBC test report. In absence of report it shall be referred from data sheet.

If poor soil is found / water table is met with during excavation SBC shall be scientifically ascertained and design shall be revise. No

extra shall be paid for increase in quantity

(10) CI pipes and special shall only be used if type is not specified in tender

estimated Approved

IT according to

but may be Description Unit Rate with 1%

more or L.W Cess Rs.

(10) CI pipes and special shall only be used if type is not specified in tender

(11) The rate shall include cost of dewatering during excavation making all arrangement when water table meets within depth.

(12) The structure shall be designed properly to resist uplift due to ground water table specified in data or actual ground water

table meets with during excavation. If GWT / Uplift is mentioned in tender and during excavation it dose not meet 7.5% rate shall

(13) GI pipes railing shall be provided when sump is more than 2 meter above ground level

(14) Appearance of structure should be aesthetically good looking acceptable to authority.

(15) Any charge in size, shape, depth below GL, height above GL, water depth, F.B., size of member etc can be permitted in

exceptional case due to site condition or hydraulic design requirement by C.E. No extra shall be paid for change.

(16) Any charge in data, dimensions, shape, water depth, reduction in size if permitted by competent authority and if it reduces

quantity then payment shall be reduced prorate

(17) When capacity of GSR / Sump is > 20 lakh liters two or suitable compartments acceptable to executive engineer shall be

designed and provided

(18) Agency shall engage qualified (at least graduate)

consulting engineer for designing the structure and he / she shall visit the site for guidance of work.

(19) 75% part rate shall be payable for concrete, reinforcement and plastering items of container until satisfactory hydraulic

testing for water tightness is performed as per tender condition. Till the work shall be treated as incomplete.

Above conditions / general specifications Sr. No. 1 to 19 are part and parcel of tender (contact) and prevail over other provisions

Seismic ZONE 3 & without Water table

estimated Approved

IT according to

but may be Description Unit Rate with 1%

more or L.W Cess Rs.

2 55.50 Demolition including stacking of serviceable materilas and disposal of unserviceable materials with all Cmt 1081.83

lead and lift. (i) R.C.C. work

3 350.00 Dismentling steel work including distempering and stacking the materials with all lead and lift. Kg 3.81

I / We am / are willing to complete work …………………... % below / above tendered rate mentioned.

Total Estimated Cost Rs. 11,74,105.00………………% Below / above Rs. …………………………………..

*(Please strike out whichever is not applicable).

Note-1- All work shall be carried out as per public works Department Hand book and other specifications of Division or as directed.

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All the columns is schedule should be filled in ink and the total of the entires in the last column should be struck by the contractor under his

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Rates quoted include clearnace of site ( prior commencement of work and at its close) in all respects and hold good for work under all

conditions, site, moisture, weather etc.

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Note -4- To be continued on additional sheets, if found necessary.

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Signature of Contractor

CHIEF OFFICER PRESSIDENT

Khedbrahma nagarpalika Khedbrahma nagarpalika