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O/o Construction Supervision ConsultantsF i rst fl oor, Ni kh ith a Bu ild i ng
B.B Road,Kundhapun - 576201Udupi-dist,Kamataka
Ph- 08254 230575www.aecom.com and www. rodlcconsultants.com
Date:04/1112014
The Chief Project Manager,IRB West Coast Tollway Pvt. Ltd.,Kadikodi,Kumta.
Subject : Four Laning of Goa/Karnataka border - Kundapur section of NH-17 (Now NH 66) from Km.93.700 to Km.283.300 in the state of Karnataka under NTIDP phase IV on design build OperateTransfer (DBFOT) toll basis. Submission of drawings of Pipe Culverts from Km. 220+000 toKm.280+000- reg.
Ref : IRB LetterNo.IRBWTPL/CTO/KKBOT1I46|20I4 dated 18.09.2014 for submission of drawingsof Pipe Culverts (29 Locatior.rs) at Design Chainages viz. Ch. 221+589, Ch.222+455,ch.222+571, Ch.222+888, Ch.223+453, Ch"223+549, Ch.223+771, Ch"224+129, Ch.224+700,ch.228+286, Ch.228+506, Ch.233+483, Ch"234+360, Ch.234+589, Ch.234+888, Ch"236+652,ch.237+223, Ch"237+666, Ch.253+382, Ch.256+624, Ch.257+118, Ch.257+t97, Ch.25g+740,ch.2 60+5 3 8, Ch"2 6 I +5 8 2, Ch.264+949, Ch "265 +492, Ch.27 0+0 1 0 & Ch.27 0+27 3
Dear Sir,
We are in receipt of drawings of Pipe Culvers (29 Loactions)as submitted by you vide reference asmentioned above" These have been reviewed and reviewed drawings are issued with somemodifications/corrections as marked in red ink. Points noted on review are brought out as under.
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The FRL shown may be reconciled with the FRL in the approved Plan & Profile Drawings"For Hume Pipe Culvert at Design C}J.228+286 (RC), the proposed total width as per ConcessionAgreement is 26.00m (LHS) and 26.00m (RHS), whereas in the drawing, the width proposed is19.375m (U/S) and 19.375m (D/S). Culvert total width needs modification as per CA provision.For Hume Pipe Culvert at Design CH. 228+506 (RC), the proposed total width as per ConcessionAgreement is 26.00m on LHS and 26.00m on RHS, whereas in the drawing, the width proposed is20.425 (U/S) and 19.575m (D/S). Needs modification as per CA provision.Design Chainages for each culvert locationand as shown on the drawings shall be re-confirmedwith the latest highway approved alignment.Key plan at each culvert location will be shown on the drawing.Traffic management plan during construction of each culvert location meant for widening,reconstruction will be submitted to IE for review before start of work.300mm thick dry stone apron of width 1.5m U/S and 3m on D/S to be provided, however dry stone
apron at inlet and outlet of pipe may be avoided in case of availability of rock with UCS more than5.0 MPa (Refer Table-2 under Notification No. 68 to IRC:78-2000 for classification of rock).In case of earth cushion more than 4.0m, only concrete cradle bedding will be used under thepipes. Pipe Culvert Drawings as given in IRC:SP: l3-2004 may be referred for this requirement.Drawing of Pipe Culvert at Ch. 270+010 mentioned in the list given on reference letter is missingfrom the attached drawing folder submitted for review.List of Reviewed Drawings@
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10.
AECOM Asia Company Ltd. in association with RODIC Consultanb Pvt Ltd.
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O/o Construction Supervision ConsultantsFirst floor, Nikhitha Buitding
B.B Road,Kundhapura - 576201Udupi-dist,Kamataka
Ph- 08254 230575www.aecom.com and u l rv. rodicconsultants.com
l0.l Drawing No. ANL544/STNIIPC122L589/001(Rev.M) GAD for Hume pipe Culvert(Reconstruction) at Design Ch. 2Zl+589
10.2 Drawing No. AA/1544/STR/HPC/222455/001(Rev.R3) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 222+45 5
10.3 Drawing No. AN|544/STNHPC1222571/001(Rev.M) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 222+57 |
10.4 Drawing No. AN|544/STNHPC/222888/001(Rev.R3) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 222+BgB
10.5 Drawing No. AA/1544/STR/I{PC/2234531001(Rev.R1) GAD for Hume Pipe Culvert (Widening)at Design Ch.223+453
10.6 Drawing No. AA/1544/STR4{PC12235491001(Rev.Rl) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 223+549
10"7 Drawing No. AA/1544ISTR/I{PC1223771/001(Rev.Rl) cAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 223+77 1
10"8 Drawing No. AA/1544lSTR/HPCl224l29l00l(Rev.R3)- (Sheet I & 2) GAD for Hume pipeCulvert (Reconstruction) at Design Ch. 224+129
10.9 Drawing No. ANL5441STNEIPC/224700/001(Rev.Rl) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 224+7 00
10.10 Drawing No. AN15441STRMPC1228286/001(Rev.R0) GAD for Hume Pipe Culvert(Reconstruction) with service road at Design Ch.228+286
10.11 Drawing No. AA/1544/STRIIDC/228506/001(Rev.R0) GAD for Hume Pipe Culvert(Reconstruction) with service road at Design Ch.228+506
10.12 Drawing No. AN15441STR/I{PC1233483/001(Rev.RI) GAD for Hume Pipe Culvert (Widening)atDesign Ch.233+483
10.13 Drawing No. AA/1544/STR/HPC/234360/001(Rev.R3) GAD for Hume Pipe Culvert (Widening)at Design Ch.234+360
10.14 Drawing No. AA/1544iSTR/I{PC/234589/001(Rev.R2) GAD for Hume Pipe Culvert (Widening)at Design Ch"234+589
10.15 Drawing No. AA/1544ISTNI{PC1234888/001(Rev.R2) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 234+888
10.16 Drawing No. ANI544|STNI*C1236652/001(Rev.M) cAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 236+652
10.17 Drawing No. ANL5441STRIHPC1237223/001(Rev"R3) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 237 +223
10.18 Drawing No. ANl544lSTRlIIPCl237666/001(Rev.R4) cAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 237 +666
10"19 Drawing No. ANLS441STR/HPC/253382/001(Rev.R4) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 253+3Bz
10.20 Drawing No. ANIS44ISTR/HPC/256624I001(Rev"R4) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 256+624
10.21 Drawing No. AN1544/STNE{PC|25:71l8l001(Rev"R4) GAD for Hume Pipe Culvert (Widening)at Design Ch.257+118
10"22 Drawing No. AA/1544/STR/HPC|257l87/001(Rev.R4) GAD for Hume Pipe Culvert (Widening)at Design Ch.257+187
AECOM Asia Company Ltd. in association with RODTC Consultanb pvt Ltd.
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O/o Construction Supervision ConsultantsFi rst floor, Nikhitha Buitding
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Ph- 08254 230575www.aecom.com and www.rodicconsultants.com
10.23 Drawing No. AA/1544ISTR/I{PC/259740/001(Rev.R4) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 259+7 40
10.24 Drawing No. AN|544/STR/HPC/260538/001(Rev.R3) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 260+538
10.25 Drawing No. AA/1544/STR/I{PC/2615821001(Rev.R4) GAD for Hume Pipe Culvert (Widening)at Design Ch.26l+582
10.26 Drawing No. ANl544lSTNHPCl264848/001(Rev.R4) GAD for Hume Pipe Culvert(Reconstruction) at Design Ch. 264+848
10"27 Drawing No. AA/1544ISTR/HPC/2654921001(Rev.R4) GAD for Hume Pipe Culverr (Widening)at Design Ch.265+492
10"28 Drawing No. AA/1544/STR/HPC/2702731001(Rev.R5) GAD for Hume Pipe Culvert (Widening)at Design Ch.270+273
I l. For Hume Pipe Culvert at Design CH. 253+382 (at Sl. No. 10.19), CH.259+740 (at Sl. No. 10.23)and CH' 270+273 (at Sl. No. 10.28), RE wall is proposed to retained earth cushion. For proposedRE wall and head wall over pipe stability calculations to be submitted. Details of inlet and outletchannels on upstream and downstream to be shown and details of protection on U/S and D/S to beprovided. Details to be submitted along with modified drawings.
Drawings need modifications in the light of the above observations. One set of reviewed drawings aslisted in point no.-10 incorporating modifications/ corrections in red is enclosed for further action at yourend.
Thanking you and assuring you ofour highest considerations.
With regards,AECOM Asia Company Ltd. in Association withRodic Consultants hrt" Ltd
(Anil Kumar Singh)Acting Team Leader
CC: l. The Project Director, (NHAI) PIU- Mangalore2" AECOM Asia Company Ltd, Gurgaon3" Rodic Consultants Pvt" Ltd. Gurgaon
For kind information please
AECOM Asia Oompany Ltd" in association with RODIC Consultanb Pvt. Ltd.