consultancy services for preparation of detailed designs and plans and estimates of proposed slab box culverts and bridges between km . 122 . 000 to km . 291 . 00 of nh- 41 mandvi - nalia-narayan sarovar road in the state of gujarat . , preparation of structural design , plan- estimate and draft tender paper : preparation of detailed plan - estimates and all necessary drawing of cross drainage works including approaches , any type of protection work if required as per site condition , diversion of required length and dismantling or demolition of existing structure . including preparing the structural design of proposed structure as per most ( goi ) and r . & b . depat . ( gog ) guide lines and norms , including collecting required datas by soil investigation and other hydrological datas of site of work and including gating approval of structural design and technical sanction of detail estimate from the competent authority andpreparing bidding document for epc contract or other contract suggested by department with all necessary schedules and details based on standard bidding document of nhai or most and / or document adopted by r&b department for various roads and bridge works ( consolidated document for road , structures etc . complete ) including cost of all required machineries , manpower and all other miscellaneous expenditure etc . complete per detail description and instruction for items attached separately detail & instruction of engineer in charge , for slab culvert or box culvert up to 12 mtr span , for minor bridge , for major bridge