12.07.2015 Views

RFP for BHOPAL & Narmadapuram Division - Madhya Pradesh ...

RFP for BHOPAL & Narmadapuram Division - Madhya Pradesh ...

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4.9.4.2.3 For bridges and cross drainage structures having inadequatewaterway, history of overtopping and are proposed <strong>for</strong>reconstruction, the detailed hydrological and hydraulic studiesshall be carried out in accordance with IRC Special PublicationNo. 13 (“Guidelines <strong>for</strong> the Design of Small Bridges andCulverts”) and IRC:5-1998 (“Standard Specifications & Code ofPractice <strong>for</strong> Road Bridges, Section I General Feature of Design”).4.9.4.3 Condition Surveys <strong>for</strong> Bridges, Culverts and Structures4.9.4.3.1 The Consultants shall thoroughly inspect the existingstructures and shall prepare a report about their condition includingall the parameters given in the Inspection pro-<strong>for</strong>ma of IRC-SP;35-1990. The condition and structural assessment survey of thebridges / culverts / structures shall be carried out by senior expertsof the Consultants.4.9.4.3.2 For the bridges identified to be in a distressed condition basedupon the visual condition survey, supplementary testing shall becarried out as per IRC-SP:35 and IRC-SP:40. Selection of testsmay be made based on the specific requirement of the structure.4.9.4.4 Geo-technical Investigations and Sub-Soil Exploration4.9.4.4.1 The Consultants shall carry out geo-technical investigationsand sub-surface explorations <strong>for</strong> the proposed new bridges /bridges proposed <strong>for</strong> reconstruction / Road overbridges/underpasses/ overpasses etc., along high embankments andany other location as necessary <strong>for</strong> proper design of the works andconduct all relevant laboratory and field tests on soil and rocksamples. The minimum scope of geo-technical investigations <strong>for</strong>bridge and structures shall be as under:S.N. DescriptionLocation of Boring1. Over all length = 6 – 30 m Each abutment location2. Over all length = 30 – 60 m Each abutment location and at leastone intermediate location betweenabutments <strong>for</strong> structures havingmore than one span.3. Over all length >60 m Each abutment and each pierlocations.4.9.4.4.2 The deviation(s), if any, by the Consultants from thescheme presented above should be got approved by MPRDC H.Q.being submitted through GM and DM of MPRDC.ADB-IV46

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