Missing Link work to Kandla - Gandhidham RWSS (Phase-2) Construction of retaining wall at Varshamedi WTP and Construction of RCC U/G sump and Pump House at Rambaug SHW.

Augmentation of Kandla Gandhidham RWSS Missing Link Phase ‐2

Item No Details Quantity Unit Rate Amount

Retaining Wall & Compound Wall Work

1 Preparing Structural Design of RCC Retaining Wall & Compound Wall in periphery of

head work premises as per relevant I.S. standards and constructing of the same

covering execution of items mentioned below in sr no 1.1 to 1.16.

General Specifications:‐

a) Agency has to prepare structural design and drawing from approved Structural

Engineers of GWSSB and get it approved from department

b) HYSD Fe 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 stainless 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

c) 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 dimensions specified for various components in tender data /

specifications shall be provided without fail.

d) 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.

e) The rate shall include cost of dewatering during excavation making all

arrangement when water table meets within depth.

f) 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.

g) Appearance of structure should be aesthetically good looking acceptable to

h) Any change in size, shape, depth below GL, height above GL, 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.

i) Any change in data, dimensions, shape, reduction in size if permitted by

competent authority and if it reduces quantity then payment shall be reduced

Above conditions / general specifications Sr. No. (a to i) are part and parcel of

tender (contact) and prevail over other provisions in tender

1.1 Excavation for foundation upto 1.5 m depth including sorting out and stacking of 652.50 Cum 122.94

useful materials and disposing off the excavated stuff upto 50 Meter lead.(A) Loose

1.2 Excavation for foundation upto 1.5 m depth including sorting out and stacking of 870.00 Cum 157.33

useful materials and disposing off the excavated stuff upto 50 Meter lead.(B) Dense

1.3 Excavation for foundation upto 1.5 m depth including sorting out and stacking of 652.50 Cum 278.06

useful materials and disposing off the excavated stuff upto 50 Meter lead.(D) Soft

rock not requiring Blasting

1.4 Excavation for foundation for depth from 1.5 m to 3.0 m including sorting out and 543.75 Cum 136.3

stacking of useful materials and disposing off the excavated stuff upto 50 Meter

lead. (A) Loose or soft

1.5 Excavation for foundation for depth from 1.5 m to 3.0 m including sorting out and 761.25 Cum 287.21

stacking of useful materials and disposing off the excavated stuff upto 50 Meter

lead. (C)Hard Murrum

1.6 Excavation for foundation for depth from 1.5 m to 3.0 m including sorting out and 870.00 Cum 301.85

stacking of useful materials and disposing off the excavated stuff upto 50 Meter

lead. (D) Soft rock not requiring Blasting

1.7 Providing and casting in situ C.C. in grade M‐15 (approx. corresp. to prop. 1:2:4) 189.23 Cum 4,906.00

(proportions as per mix design or as per Table 9 of IS456 2000 in masses by weigh

batching ) using granite, quartzite trap metal of size 6 mm to 20 mm for RCC work,

including scaffolding centering, form work, needle vibrated consolidation, curing

comp. up to 6 meter depth or height (excluding cost of reinforcement and neat

finishing) with centering and shuttering/deshuttering etc. comp. for structure for

other than water retaining 2. Footing for column or foundation (with form work)

1.8 Providing and cast in situ C.C. in grade M‐25 proportions of ingredients as per mix 478.50 Cum 8,077.00

design by weigh batching using granite, quartzite trap metal of size 12 mm to

mm and or 6 mm to 12 mm including scaffolding centering formwork, needle

vibrated consolidation, curing and hydraulic testing etc. complete (excluding cost of

reinforcement) with centering and shuttering/deshuttering etc. comp. up to

meter height /depth Av. G.L.for all water retaining structures

1. Flat bottom slab/floor slab/slab with shuttering

1.9 Providing and cast in situ C.C. in grade M‐25 proportions of ingredients as per mix 643.87 Cum 7,936.00

design by weigh batching using granite, quartzite trap metal of size 12 mm to

mm and or 6 mm to 12 mm including scaffolding centering formwork, needle

vibrated consolidation, curing and hydraulic testing etc. complete (excluding cost of

reinforcement) with centering and shuttering/deshuttering etc. comp. up to

meter height /depth Av. G.L.for all water retaining structures Vertical Wall

1.10 Supplying cutting, bending, binding and placing in position steel as per plan and 133.00 MT 77,504.00

design and as per ISS 2502 including cost of steel and binding wire for

reservoirs/structures only including lift up to 6 meter height or depth below G.L. for

all diameters 9.4 Do – deformed (TMT) bars confirming to relevant IS Fe –

grade for all diameters.

1.11 Filling available excavated earth (excluding rock) in trenches. plinth, sides of 3151.94 Cum 136.92

foundations etc. in layers not exceeding 20 cm. in depth consolidating each

disposited layer by ramming and watering.

1.12 Filling in foundation and plinth with murrum or selected soil in layers of 20cm. 4698.00 Cum 269.75

Thickness including watering, ramming and consolidating etc. complete.

1.13 Construction of compound wall in brick messanory C:M 1:6, 23 cm. thick & 1.50 ‐ 435.00 Rmt 6,908.90

mtr. height above G.L. having 10 cm. Thick coping in C:C 1:3:6,& Plinth Beam of Size

0.23 x 0.23 M above GL both side 12 mm.thck cement plaster in C.M. 1:3, including

white / colour washing. Works, incl. Excavation & foundation P.C.C. 1:3:6, having

width 75 C.M. & thicknesh 20 cm. , in column foundation 0.75 x 0.75 x0.20 & above

founadation 0.23 x 0.23 Size RCC Column & as per detail given in drawing

2.00 Preparing structural design of RCC Under Ground / Partially under ground / above 1.00 No 10,403,146.93

high ground level Reservoir of required capacity as per relevant I.S. standards and

constructing the same, including excavation in all types of soil strata (including rock)

including shoring strutting if required, for loose soil / to protect from collapse,

casting 100 mm thick P.C.C. levelling course in M‐15, Refilling the pit with proper

soil and disposing of the surplus stuff at all lead. Including cement plaster in CM 1:2

with approved water proofing compound to all over inside container (i.e. walls,

base, top slab/dome bottom etc. all). 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, CI Manhole frame and cover, water level indicator,

adequate cowl type ventilators or lantern type ventilator with stainless steel jail.

RCC 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.

50 LL Capacity AT RAMBAG HW

List of indian Standards for Design of GSR f SUMP:‐

The structural design of GSR shall be in accordance with provisions relevant |.S

(1) LS. 3370 part | & 11 2009 or its latest revision

(1.4) LS. 3370 part ill & iv 1965 or Its latest revision

(2) 1‐5. 456 = 2000 or its latest revision.

(3) 1‐8. 1893 ‐ 2000 ‐— 1984 or Its latest revisian,

(4) LS 675, Part—1 to 3, 1987 or Its latest revision.

General Specifications:‐

(1) Water depth in container shall be adopted as per date of tender. Capacity shall

be calculated excluding free board of the reservoir. li water depth is nol specified.

the suitable water depth / acceptable to field engineer in accordance with

(2) Shape of container (in plan) speci by in data shall be adopted in absence oreviar

shape shall be adopted.

(3) Size shall be fixed as per availability of space (land srea) at site | acceptable

engineer in charge.

(4) Effect of overiapping 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 agency.

(6) The minimum concrete grade for ROC shall pe M‐30.

(7) HYSD Fe 415 / 500 grade reinforcing bars confirming ta 1.S, 1785/1139 shall be

considered in desian. CRS / TMT bars shall be provided, In saline atmosphere

corrosion resistance stainless steel / HCP rebar shall be provided. Any other steel

can be used with approval of 0.5. in situation of non availability in markel wilhoul

(8) Minimum size (or thickness) of various components shall be provided as per

tender criteria | specifications in absence as per IS Std. practice of G.W.S.3.8.

Minimum dimensions spacified for various components in tender data /

specifications shall be provided without fail

(9) The safe bearing capacity (SSC) shall be referred from SBC test report. In

absence of report it shall be referred fram data sheet. if poor sOIl is found / water

table is met with during excavation SBC shell be scientifically ascertained and

design shall be revise, No extra shall be paid for increase in quantity.

(10) DI pipes end special shall only be used if type is not specified in tender.

(11) The rate shall include cost of dewstering during excavation making all

arrangement when water table meets within depth.

(12) The structure shall be designed property to resist uclift due to ground weter

table specified in data or actual ground water table meets with during excavation, If

GWT / Uplift is mentioned in tender and during excavation it dase not meet 7.5%

rate shall be reduced.

(13) SS pipes railing shall be provided over sump perifery when sump height is >=

1.5 meter above ground level.

(14.a) RGC staircase/ROC Stens should be provided from GL ta sump tep slab based

on the height of the GSR aboverbelow the ground.

(14.b) RCC stair case with SS railing to be provided inside reservoir container. BB

Masonry stair cabin with MS safety door having locking arrangement to be

provided for GSR, Sump and HGLR of capacity more than 7.5 lakhs liter with top

slab. If dome is constructed as top slab then provide mininum opening of 900 mm x

2000 mm with curbing and SS railing around.

(15) Appearance of structure should be aesthetically good looking acceptable to

(16) Any change 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.

(17) Any change in data, dimensions, shape, and water depth, reduction in size if

permitted by competent authority and if it reduces quantity then payment shall be

reduced prorate.

(18) When capacity of GSR / Sump is > 20 lakh liters two or suitable compartments

acceptable to executive engineer shall be designed and provided.

(19) Agency shall engage qualified (at least graduate) consulting engineer for

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

(20) 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 20 are part and parcel of

tender (contact) and prevail over other provisions in tender.

Capacity of Sump 50,00,000 Liter at Rambaug SHW

3 Designing (Aesthetically) and constructing R.C.C. Frame Structure of Pump Room 150.00 Sq.mt 10,365.68

with Negative / Positive Suction..

(Without Gantry Structure) Upto 3.60 m

1. Minimum 15% opening for ventilation should be provided.

2. Pump room rolling shutter, door and windows of aluminum section and window

grill of iron should be provided (Included in Cost).

3. Plinth level of Pump house should be min.1 meter above GL.

4.Cost does not include foundation for pumping

(Without Gantry Structure)

AT Rambaug SHW As per BOQ

4 Providing, supplying and delivery of Water Hammer Control Devices for use on

various pumping main of following class and diameter including all taxes, insurance,

transportation, freight charges, octroi, inspection charges, loading, unloading,

conveyance to department al stores, stacking etc. complete. Zero velocity valves

above 300mm dia with M.S. body (class‐10)

4.1 Zero velocity valves above 300mm dia with M.S. body (class‐10) ‐ 1100 mm dia 1.00 No 565,369.00

4.2 Zero velocity valves above 300mm dia with M.S. body (class‐10) ‐ 600mm dia 1.00 No 174,829.00

4.3 Air Cushion Valve with Cast Iron Body ‐ Class‐15 (150 mm) 2.00 No 106,587.00

5 Providing, supplying, installation and commissioning of HP All‐in‐One, 13th Gen 4.00 No 85,990.00

Intel Core i5‐1334U (16GB DDR4, 1TB SSD) IPS, Three‐Sided, Micro‐Edge, Anti‐Glare,

FHD, 27''(68.6 cm), Win 11 Home, Office 24, 6.72kg, FHD Camera, 27‐

6 Providing, supplying, installation and commissioning of Brother HL‐L2440DW(New 4.00 No 13,399.00

Launch)Auto Duplex Monochrome Laser Printer,30 PPM Print Speed,LCD Display,64

MB Memory,(WiFi Direct LAN USB),250 Sheet Paper Tray,3000 Pages Inbox

Toner,Free Installation,Black

7 Providing, supplying, installation and commissioning of Brother HL‐L2440DW(New 1.00 No 24,529.00

Launch)Auto Duplex Monochrome Laser Printer,30 PPM Print Speed,LCD Display,64

MB Memory,(WiFi Direct LAN USB),250 Sheet Paper Tray,3000 Pages Inbox

Toner,Free Installation,Black

Total Estimated Amount in Rs.

EXECUTIVE ENGINEER

P.H.W. DIVISION

I / We am / are willing to carry out at_________% above / below

_______________________( Percentage should be written in figures and words )

Estimated Amount Rs: 3,92,02,558.59 Estimated Amount Rs:

Tender Amount in Rs.__________________ Tender Amount in Rs.____________________

Signeture of Contractor EXECUTIVE ENGINEER

P.H.W. DIVISION